This is an automated email from the ASF dual-hosted git repository.

jfeinauer pushed a commit to branch loveher147/master
in repository https://gitbox.apache.org/repos/asf/iotdb-web-workbench.git

commit 473c361c83872f06a590d979263faef1efeccbd9
Author: Julian Feinauer <[email protected]>
AuthorDate: Sat Sep 11 10:52:15 2021 +0200

    Fixed all licensing for RAT Plugin
---
 README.md                                          |  1 +
 README_zh.md                                       |  1 +
 backend/.drone.yml                                 | 19 ++++++++++++++++
 backend/Dockerfile                                 | 19 ++++++++++++++++
 backend/README.md                                  | 21 ++++++++++++++++++
 backend/build.gradle                               | 19 ++++++++++++++++
 backend/build.sh                                   | 19 ++++++++++++++++
 backend/doc/config.md                              | 21 ++++++++++++++++++
 backend/doc/deploy.md                              | 21 ++++++++++++++++++
 backend/doc/intro.md                               | 21 ++++++++++++++++++
 backend/doc/log.md                                 | 21 ++++++++++++++++++
 backend/doc/maven.md                               | 21 ++++++++++++++++++
 backend/doc/note.md                                | 21 ++++++++++++++++++
 backend/doc/promise.md                             | 21 ++++++++++++++++++
 backend/doc/release.md                             | 21 ++++++++++++++++++
 backend/doc/rest.md                                | 21 ++++++++++++++++++
 backend/doc/rule.md                                | 21 ++++++++++++++++++
 backend/doc/swagger.md                             | 21 ++++++++++++++++++
 backend/doc/validate.md                            | 21 ++++++++++++++++++
 backend/gradlew                                    | 25 ++++++++++++----------
 backend/pom.xml                                    | 19 ++++++++++++++++
 backend/settings.gradle                            | 19 ++++++++++++++++
 .../org/apache/iotdb/admin/AdminApplication.java   | 13 +++++------
 .../iotdb/admin/aop/BaseExceptionAdvice.java       | 13 +++++------
 .../apache/iotdb/admin/aop/ParamValidAspect.java   | 13 +++++------
 .../admin/common/exception/BaseException.java      | 13 +++++------
 .../iotdb/admin/common/exception/ErrorCode.java    | 13 +++++------
 .../admin/common/utils/AuthenticationUtils.java    | 13 +++++------
 .../apache/iotdb/admin/config/FilterConfig.java    | 13 +++++------
 .../iotdb/admin/config/MybatisPlusConfig.java      | 13 +++++------
 .../apache/iotdb/admin/config/SecurityConfig.java  | 13 +++++------
 .../apache/iotdb/admin/config/SwaggerConfig.java   | 13 +++++------
 .../iotdb/admin/config/ValidatorConfiguration.java | 13 +++++------
 .../admin/controller/ConnectionController.java     | 13 +++++------
 .../iotdb/admin/controller/HealthController.java   | 13 +++++------
 .../iotdb/admin/controller/IotDBController.java    | 13 +++++------
 .../iotdb/admin/controller/QueryController.java    | 13 +++++------
 .../iotdb/admin/controller/UserController.java     | 13 +++++------
 .../java/org/apache/iotdb/admin/demo/JDBC.java     | 13 +++++------
 .../org/apache/iotdb/admin/demo/NativeAPI.java     | 13 +++++------
 .../org/apache/iotdb/admin/filter/TokenFilter.java | 13 +++++------
 .../iotdb/admin/mapper/ConnectionMapper.java       | 13 +++++------
 .../apache/iotdb/admin/mapper/DeviceMapper.java    | 19 ++++++++++++++++
 .../org/apache/iotdb/admin/mapper/GroupMapper.java | 19 ++++++++++++++++
 .../iotdb/admin/mapper/MeasurementMapper.java      | 13 +++++------
 .../org/apache/iotdb/admin/mapper/QueryMapper.java | 13 +++++------
 .../org/apache/iotdb/admin/mapper/UserMapper.java  | 13 +++++------
 .../iotdb/admin/model/dto/ConnectionDTO.java       | 13 +++++------
 .../org/apache/iotdb/admin/model/dto/CountDTO.java | 13 +++++------
 .../apache/iotdb/admin/model/dto/DeviceDTO.java    | 13 +++++------
 .../iotdb/admin/model/dto/DeviceInfoDTO.java       | 13 +++++------
 .../org/apache/iotdb/admin/model/dto/GroupDTO.java | 13 +++++------
 .../apache/iotdb/admin/model/dto/IotDBRole.java    | 13 +++++------
 .../apache/iotdb/admin/model/dto/IotDBUser.java    | 13 +++++------
 .../apache/iotdb/admin/model/dto/IotDBUserDTO.java | 13 +++++------
 .../iotdb/admin/model/dto/MeasurementDTO.java      | 13 +++++------
 .../iotdb/admin/model/dto/PrivilegeInfoDTO.java    | 13 +++++------
 .../org/apache/iotdb/admin/model/dto/QueryDTO.java | 13 +++++------
 .../apache/iotdb/admin/model/dto/SearchDTO.java    | 13 +++++------
 .../apache/iotdb/admin/model/dto/Timeseries.java   | 13 +++++------
 .../iotdb/admin/model/entity/Connection.java       | 13 +++++------
 .../apache/iotdb/admin/model/entity/Device.java    | 13 +++++------
 .../iotdb/admin/model/entity/Measurement.java      | 13 +++++------
 .../org/apache/iotdb/admin/model/entity/Query.java | 13 +++++------
 .../iotdb/admin/model/entity/StorageGroup.java     | 13 +++++------
 .../org/apache/iotdb/admin/model/entity/User.java  | 13 +++++------
 .../org/apache/iotdb/admin/model/vo/BaseVO.java    | 13 +++++------
 .../org/apache/iotdb/admin/model/vo/ConnVO.java    | 13 +++++------
 .../apache/iotdb/admin/model/vo/ConnectionVO.java  | 13 +++++------
 .../apache/iotdb/admin/model/vo/DeviceInfo.java    | 13 +++++------
 .../apache/iotdb/admin/model/vo/DeviceInfoVO.java  | 13 +++++------
 .../org/apache/iotdb/admin/model/vo/DeviceVO.java  | 13 +++++------
 .../apache/iotdb/admin/model/vo/GroupInfoVO.java   | 13 +++++------
 .../org/apache/iotdb/admin/model/vo/GroupVO.java   | 13 +++++------
 .../apache/iotdb/admin/model/vo/IotDBUserVO.java   | 13 +++++------
 .../apache/iotdb/admin/model/vo/MeasurementVO.java | 13 +++++------
 .../iotdb/admin/model/vo/MeasuremtnInfoVO.java     | 13 +++++------
 .../org/apache/iotdb/admin/model/vo/PathVO.java    | 13 +++++------
 .../apache/iotdb/admin/model/vo/PrivilegeInfo.java | 13 +++++------
 .../org/apache/iotdb/admin/model/vo/QueryVO.java   | 13 +++++------
 .../org/apache/iotdb/admin/model/vo/RecordVO.java  | 13 +++++------
 .../iotdb/admin/model/vo/RoleWithPrivilegesVO.java | 13 +++++------
 .../apache/iotdb/admin/model/vo/SqlResultVO.java   | 13 +++++------
 .../iotdb/admin/model/vo/StorageGroupVO.java       | 13 +++++------
 .../iotdb/admin/service/ConnectionService.java     | 13 +++++------
 .../apache/iotdb/admin/service/DeviceService.java  | 13 +++++------
 .../apache/iotdb/admin/service/GroupService.java   | 13 +++++------
 .../apache/iotdb/admin/service/IotDBService.java   | 13 +++++------
 .../iotdb/admin/service/MeasurementService.java    | 13 +++++------
 .../apache/iotdb/admin/service/QueryService.java   | 13 +++++------
 .../apache/iotdb/admin/service/UserService.java    | 13 +++++------
 .../admin/service/impl/ConnectionServiceImpl.java  | 13 +++++------
 .../admin/service/impl/DeviceServiceImpl.java      | 13 +++++------
 .../iotdb/admin/service/impl/GroupServiceImpl.java | 13 +++++------
 .../iotdb/admin/service/impl/IotDBServiceImpl.java | 13 +++++------
 .../admin/service/impl/MeasurementServiceImpl.java | 13 +++++------
 .../iotdb/admin/service/impl/QueryServiceImpl.java | 13 +++++------
 .../iotdb/admin/service/impl/UserServiceImpl.java  | 13 +++++------
 backend/src/main/resources/META-INF/app.properties | 19 ++++++++++++++++
 .../src/main/resources/application-dev.properties  | 19 ++++++++++++++++
 .../src/main/resources/application-prod.properties | 19 ++++++++++++++++
 .../src/main/resources/application-test.properties | 19 ++++++++++++++++
 backend/src/main/resources/application.properties  | 19 ++++++++++++++++
 backend/src/main/resources/log4j2-prod.xml         | 19 ++++++++++++++++
 backend/src/main/resources/log4j2.xml              | 19 ++++++++++++++++
 .../test/java/org/apache/iotdb/admin/DemoJDBC.java | 13 +++++------
 .../admin/controller/ConnectionControllerTest.java | 13 +++++------
 .../admin/controller/IotDBControllerTest.java      | 13 +++++------
 .../admin/controller/QueryControllerTest.java      | 13 +++++------
 .../iotdb/admin/controller/TestSystemInfo.java     | 13 +++++------
 110 files changed, 1127 insertions(+), 485 deletions(-)

diff --git a/README.md b/README.md
index 06ee6a0..adf58fc 100644
--- a/README.md
+++ b/README.md
@@ -18,6 +18,7 @@
     under the License.
 
 -->
+
 [English](./README.md) | [中文](./README_ZH.md)
 
 # Overview
diff --git a/README_zh.md b/README_zh.md
index 361512d..9f1cb6d 100644
--- a/README_zh.md
+++ b/README_zh.md
@@ -18,6 +18,7 @@
     under the License.
 
 -->
+
 [English](./README.md) | [中文](./README_zh.md)
 
 # IoTDB-Workbench
diff --git a/backend/.drone.yml b/backend/.drone.yml
index eb7eb4d..9307f0d 100644
--- a/backend/.drone.yml
+++ b/backend/.drone.yml
@@ -1,3 +1,22 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+
 ---
 kind: pipeline
 name: deploy-testing-environment-preview.1.0
diff --git a/backend/Dockerfile b/backend/Dockerfile
index e2dfe0c..f6e39cc 100644
--- a/backend/Dockerfile
+++ b/backend/Dockerfile
@@ -1,3 +1,22 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+
 FROM hub.segma.tech/library/java:8-jre-centos7-apollo
 
 COPY target/service-1.0.0.jar /app/app.jar
diff --git a/backend/README.md b/backend/README.md
index 4699b96..2e5c067 100644
--- a/backend/README.md
+++ b/backend/README.md
@@ -1,3 +1,24 @@
+<!--
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing,
+    software distributed under the License is distributed on an
+    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+    KIND, either express or implied.  See the License for the
+    specific language governing permissions and limitations
+    under the License.
+
+-->
+
 # 后端服务设计及运行说明
 
 [IoTDB-Workbench快速入门](doc/intro.md)
diff --git a/backend/build.gradle b/backend/build.gradle
index 6f1857d..8b92fc3 100644
--- a/backend/build.gradle
+++ b/backend/build.gradle
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 apply plugin: 'java'
 apply plugin: 'maven'
 
diff --git a/backend/build.sh b/backend/build.sh
index 212c4ba..40fdd9a 100755
--- a/backend/build.sh
+++ b/backend/build.sh
@@ -1 +1,20 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+
 #!/usr/bin/env bash
\ No newline at end of file
diff --git a/backend/doc/config.md b/backend/doc/config.md
index c8276bc..bd1b453 100644
--- a/backend/doc/config.md
+++ b/backend/doc/config.md
@@ -1,3 +1,24 @@
+<!--
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing,
+    software distributed under the License is distributed on an
+    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+    KIND, either express or implied.  See the License for the
+    specific language governing permissions and limitations
+    under the License.
+
+-->
+
 # 配置中心 Apollo
 
 ##接入步骤
diff --git a/backend/doc/deploy.md b/backend/doc/deploy.md
index 3b16978..c608a17 100644
--- a/backend/doc/deploy.md
+++ b/backend/doc/deploy.md
@@ -1,3 +1,24 @@
+<!--
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing,
+    software distributed under the License is distributed on an
+    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+    KIND, either express or implied.  See the License for the
+    specific language governing permissions and limitations
+    under the License.
+
+-->
+
 # 部署流程
 
 ## 后端部署
diff --git a/backend/doc/intro.md b/backend/doc/intro.md
index abe2938..b57f038 100644
--- a/backend/doc/intro.md
+++ b/backend/doc/intro.md
@@ -1,3 +1,24 @@
+<!--
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing,
+    software distributed under the License is distributed on an
+    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+    KIND, either express or implied.  See the License for the
+    specific language governing permissions and limitations
+    under the License.
+
+-->
+
 # IoTDB-Workbench快速入门
 
 该项目IoTDB-Workbench,为IoTDB的可视化监控程序。
diff --git a/backend/doc/log.md b/backend/doc/log.md
index 934f730..536f83b 100644
--- a/backend/doc/log.md
+++ b/backend/doc/log.md
@@ -1,3 +1,24 @@
+<!--
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing,
+    software distributed under the License is distributed on an
+    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+    KIND, either express or implied.  See the License for the
+    specific language governing permissions and limitations
+    under the License.
+
+-->
+
 # 日志配置
 
 日志使用的是log4j,日志配置文件在src/main/resources/log4j2.xml中,log4j2.xml中默认路径写的是:
diff --git a/backend/doc/maven.md b/backend/doc/maven.md
index 8a9a580..6b03b5a 100644
--- a/backend/doc/maven.md
+++ b/backend/doc/maven.md
@@ -1,3 +1,24 @@
+<!--
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing,
+    software distributed under the License is distributed on an
+    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+    KIND, either express or implied.  See the License for the
+    specific language governing permissions and limitations
+    under the License.
+
+-->
+
 # Maven 仓库配置
 
 本文介绍如何配置Maven仓库
diff --git a/backend/doc/note.md b/backend/doc/note.md
index 13f153e..16f74b0 100644
--- a/backend/doc/note.md
+++ b/backend/doc/note.md
@@ -1,3 +1,24 @@
+<!--
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing,
+    software distributed under the License is distributed on an
+    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+    KIND, either express or implied.  See the License for the
+    specific language governing permissions and limitations
+    under the License.
+
+-->
+
 # Controller格式
 
 ```java
diff --git a/backend/doc/promise.md b/backend/doc/promise.md
index 79816f3..1f9c2ad 100644
--- a/backend/doc/promise.md
+++ b/backend/doc/promise.md
@@ -1,3 +1,24 @@
+<!--
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing,
+    software distributed under the License is distributed on an
+    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+    KIND, either express or implied.  See the License for the
+    specific language governing permissions and limitations
+    under the License.
+
+-->
+
 # 常用实践约定
 
 本章讨论常用默认的IoTDB-Workbench约定
diff --git a/backend/doc/release.md b/backend/doc/release.md
index aebe76b..0e4c436 100644
--- a/backend/doc/release.md
+++ b/backend/doc/release.md
@@ -1,3 +1,24 @@
+<!--
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing,
+    software distributed under the License is distributed on an
+    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+    KIND, either express or implied.  See the License for the
+    specific language governing permissions and limitations
+    under the License.
+
+-->
+
 # 发布日志
 
 ## 1.0.0
diff --git a/backend/doc/rest.md b/backend/doc/rest.md
index c739188..0b25e53 100644
--- a/backend/doc/rest.md
+++ b/backend/doc/rest.md
@@ -1,3 +1,24 @@
+<!--
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing,
+    software distributed under the License is distributed on an
+    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+    KIND, either express or implied.  See the License for the
+    specific language governing permissions and limitations
+    under the License.
+
+-->
+
 # 接口规范
 
 有时候,会犯一些错误,例如直接会定义如下的一些接口:
diff --git a/backend/doc/rule.md b/backend/doc/rule.md
index ce17041..31b6225 100644
--- a/backend/doc/rule.md
+++ b/backend/doc/rule.md
@@ -1,3 +1,24 @@
+<!--
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing,
+    software distributed under the License is distributed on an
+    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+    KIND, either express or implied.  See the License for the
+    specific language governing permissions and limitations
+    under the License.
+
+-->
+
 # 阿里巴巴java规范checkstyle
 
 我们使用阿里巴巴java规范泰山版(1.6.0)
diff --git a/backend/doc/swagger.md b/backend/doc/swagger.md
index 965a327..37e9b0d 100644
--- a/backend/doc/swagger.md
+++ b/backend/doc/swagger.md
@@ -1,3 +1,24 @@
+<!--
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing,
+    software distributed under the License is distributed on an
+    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+    KIND, either express or implied.  See the License for the
+    specific language governing permissions and limitations
+    under the License.
+
+-->
+
 # swagger的使用
 
 swagger在前后端联调开发中,启动非常重要的作用,如下:
diff --git a/backend/doc/validate.md b/backend/doc/validate.md
index f49fdce..ceb0f5b 100644
--- a/backend/doc/validate.md
+++ b/backend/doc/validate.md
@@ -1,3 +1,24 @@
+<!--
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing,
+    software distributed under the License is distributed on an
+    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+    KIND, either express or implied.  See the License for the
+    specific language governing permissions and limitations
+    under the License.
+
+-->
+
 # 参数验证
 
 参数验证一般有很多种方法:
diff --git a/backend/gradlew b/backend/gradlew
index 4f906e0..f4f9798 100755
--- a/backend/gradlew
+++ b/backend/gradlew
@@ -1,19 +1,22 @@
 #!/usr/bin/env sh
 
 #
-# Copyright 2015 the original author or authors.
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
+#   http://www.apache.org/licenses/LICENSE-2.0
 #
-#      https://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
 #
 
 ##############################################################################
diff --git a/backend/pom.xml b/backend/pom.xml
index 6ff89fb..6413aba 100644
--- a/backend/pom.xml
+++ b/backend/pom.xml
@@ -1,4 +1,23 @@
 <?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~ Licensed to the Apache Software Foundation (ASF) under one
+  ~ or more contributor license agreements.  See the NOTICE file
+  ~ distributed with this work for additional information
+  ~ regarding copyright ownership.  The ASF licenses this file
+  ~ to you under the Apache License, Version 2.0 (the
+  ~ "License"); you may not use this file except in compliance
+  ~ with the License.  You may obtain a copy of the License at
+  ~
+  ~   http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing,
+  ~ software distributed under the License is distributed on an
+  ~ "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  ~ KIND, either express or implied.  See the License for the
+  ~ specific language governing permissions and limitations
+  ~ under the License.
+  -->
+
 <project xmlns="http://maven.apache.org/POM/4.0.0"; 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
   xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 
https://maven.apache.org/xsd/maven-4.0.0.xsd";>
   <modelVersion>4.0.0</modelVersion>
diff --git a/backend/settings.gradle b/backend/settings.gradle
index 1ed471d..c9e1192 100644
--- a/backend/settings.gradle
+++ b/backend/settings.gradle
@@ -1 +1,20 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 rootProject.name = 'service'
diff --git a/backend/src/main/java/org/apache/iotdb/admin/AdminApplication.java 
b/backend/src/main/java/org/apache/iotdb/admin/AdminApplication.java
index 1256a0f..55adaf8 100644
--- a/backend/src/main/java/org/apache/iotdb/admin/AdminApplication.java
+++ b/backend/src/main/java/org/apache/iotdb/admin/AdminApplication.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/aop/BaseExceptionAdvice.java 
b/backend/src/main/java/org/apache/iotdb/admin/aop/BaseExceptionAdvice.java
index 1918350..da38b49 100644
--- a/backend/src/main/java/org/apache/iotdb/admin/aop/BaseExceptionAdvice.java
+++ b/backend/src/main/java/org/apache/iotdb/admin/aop/BaseExceptionAdvice.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.aop;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/aop/ParamValidAspect.java 
b/backend/src/main/java/org/apache/iotdb/admin/aop/ParamValidAspect.java
index 12cd46e..5b9cb07 100644
--- a/backend/src/main/java/org/apache/iotdb/admin/aop/ParamValidAspect.java
+++ b/backend/src/main/java/org/apache/iotdb/admin/aop/ParamValidAspect.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.aop;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/common/exception/BaseException.java
 
b/backend/src/main/java/org/apache/iotdb/admin/common/exception/BaseException.java
index b91fccc..41eaa70 100644
--- 
a/backend/src/main/java/org/apache/iotdb/admin/common/exception/BaseException.java
+++ 
b/backend/src/main/java/org/apache/iotdb/admin/common/exception/BaseException.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.common.exception;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/common/exception/ErrorCode.java 
b/backend/src/main/java/org/apache/iotdb/admin/common/exception/ErrorCode.java
index 462acfc..1fa47da 100644
--- 
a/backend/src/main/java/org/apache/iotdb/admin/common/exception/ErrorCode.java
+++ 
b/backend/src/main/java/org/apache/iotdb/admin/common/exception/ErrorCode.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.common.exception;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/common/utils/AuthenticationUtils.java
 
b/backend/src/main/java/org/apache/iotdb/admin/common/utils/AuthenticationUtils.java
index 24be68d..efe1f84 100644
--- 
a/backend/src/main/java/org/apache/iotdb/admin/common/utils/AuthenticationUtils.java
+++ 
b/backend/src/main/java/org/apache/iotdb/admin/common/utils/AuthenticationUtils.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.common.utils;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/config/FilterConfig.java 
b/backend/src/main/java/org/apache/iotdb/admin/config/FilterConfig.java
index 7eca56b..50dafeb 100644
--- a/backend/src/main/java/org/apache/iotdb/admin/config/FilterConfig.java
+++ b/backend/src/main/java/org/apache/iotdb/admin/config/FilterConfig.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.config;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/config/MybatisPlusConfig.java 
b/backend/src/main/java/org/apache/iotdb/admin/config/MybatisPlusConfig.java
index c116573..becedc1 100644
--- a/backend/src/main/java/org/apache/iotdb/admin/config/MybatisPlusConfig.java
+++ b/backend/src/main/java/org/apache/iotdb/admin/config/MybatisPlusConfig.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.config;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/config/SecurityConfig.java 
b/backend/src/main/java/org/apache/iotdb/admin/config/SecurityConfig.java
index 24db087..bf93858 100644
--- a/backend/src/main/java/org/apache/iotdb/admin/config/SecurityConfig.java
+++ b/backend/src/main/java/org/apache/iotdb/admin/config/SecurityConfig.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.config;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/config/SwaggerConfig.java 
b/backend/src/main/java/org/apache/iotdb/admin/config/SwaggerConfig.java
index 3dafd4b..45a0374 100644
--- a/backend/src/main/java/org/apache/iotdb/admin/config/SwaggerConfig.java
+++ b/backend/src/main/java/org/apache/iotdb/admin/config/SwaggerConfig.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.config;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/config/ValidatorConfiguration.java
 
b/backend/src/main/java/org/apache/iotdb/admin/config/ValidatorConfiguration.java
index 5abadae..ff63d55 100644
--- 
a/backend/src/main/java/org/apache/iotdb/admin/config/ValidatorConfiguration.java
+++ 
b/backend/src/main/java/org/apache/iotdb/admin/config/ValidatorConfiguration.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.config;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/controller/ConnectionController.java
 
b/backend/src/main/java/org/apache/iotdb/admin/controller/ConnectionController.java
index 8660c23..71dbdd3 100644
--- 
a/backend/src/main/java/org/apache/iotdb/admin/controller/ConnectionController.java
+++ 
b/backend/src/main/java/org/apache/iotdb/admin/controller/ConnectionController.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.controller;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/controller/HealthController.java 
b/backend/src/main/java/org/apache/iotdb/admin/controller/HealthController.java
index 907ae91..62efb35 100644
--- 
a/backend/src/main/java/org/apache/iotdb/admin/controller/HealthController.java
+++ 
b/backend/src/main/java/org/apache/iotdb/admin/controller/HealthController.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.controller;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/controller/IotDBController.java 
b/backend/src/main/java/org/apache/iotdb/admin/controller/IotDBController.java
index 6627e6e..8153022 100644
--- 
a/backend/src/main/java/org/apache/iotdb/admin/controller/IotDBController.java
+++ 
b/backend/src/main/java/org/apache/iotdb/admin/controller/IotDBController.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.controller;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/controller/QueryController.java 
b/backend/src/main/java/org/apache/iotdb/admin/controller/QueryController.java
index 3b19676..88ec329 100644
--- 
a/backend/src/main/java/org/apache/iotdb/admin/controller/QueryController.java
+++ 
b/backend/src/main/java/org/apache/iotdb/admin/controller/QueryController.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.controller;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/controller/UserController.java 
b/backend/src/main/java/org/apache/iotdb/admin/controller/UserController.java
index 85ce729..8fbbc3d 100644
--- 
a/backend/src/main/java/org/apache/iotdb/admin/controller/UserController.java
+++ 
b/backend/src/main/java/org/apache/iotdb/admin/controller/UserController.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.controller;
diff --git a/backend/src/main/java/org/apache/iotdb/admin/demo/JDBC.java 
b/backend/src/main/java/org/apache/iotdb/admin/demo/JDBC.java
index 1f613e6..3cb100a 100644
--- a/backend/src/main/java/org/apache/iotdb/admin/demo/JDBC.java
+++ b/backend/src/main/java/org/apache/iotdb/admin/demo/JDBC.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.demo;
diff --git a/backend/src/main/java/org/apache/iotdb/admin/demo/NativeAPI.java 
b/backend/src/main/java/org/apache/iotdb/admin/demo/NativeAPI.java
index bac14a4..11259c1 100644
--- a/backend/src/main/java/org/apache/iotdb/admin/demo/NativeAPI.java
+++ b/backend/src/main/java/org/apache/iotdb/admin/demo/NativeAPI.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.demo;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/filter/TokenFilter.java 
b/backend/src/main/java/org/apache/iotdb/admin/filter/TokenFilter.java
index 125a5f3..59be4fa 100644
--- a/backend/src/main/java/org/apache/iotdb/admin/filter/TokenFilter.java
+++ b/backend/src/main/java/org/apache/iotdb/admin/filter/TokenFilter.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.filter;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/mapper/ConnectionMapper.java 
b/backend/src/main/java/org/apache/iotdb/admin/mapper/ConnectionMapper.java
index 65850d5..a9db0bb 100644
--- a/backend/src/main/java/org/apache/iotdb/admin/mapper/ConnectionMapper.java
+++ b/backend/src/main/java/org/apache/iotdb/admin/mapper/ConnectionMapper.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.mapper;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/mapper/DeviceMapper.java 
b/backend/src/main/java/org/apache/iotdb/admin/mapper/DeviceMapper.java
index a2c8c59..b870411 100644
--- a/backend/src/main/java/org/apache/iotdb/admin/mapper/DeviceMapper.java
+++ b/backend/src/main/java/org/apache/iotdb/admin/mapper/DeviceMapper.java
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package org.apache.iotdb.admin.mapper;
 
 import com.baomidou.mybatisplus.core.mapper.BaseMapper;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/mapper/GroupMapper.java 
b/backend/src/main/java/org/apache/iotdb/admin/mapper/GroupMapper.java
index 3dac654..5752ff6 100644
--- a/backend/src/main/java/org/apache/iotdb/admin/mapper/GroupMapper.java
+++ b/backend/src/main/java/org/apache/iotdb/admin/mapper/GroupMapper.java
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package org.apache.iotdb.admin.mapper;
 
 import com.baomidou.mybatisplus.core.mapper.BaseMapper;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/mapper/MeasurementMapper.java 
b/backend/src/main/java/org/apache/iotdb/admin/mapper/MeasurementMapper.java
index 87fff28..be3a017 100644
--- a/backend/src/main/java/org/apache/iotdb/admin/mapper/MeasurementMapper.java
+++ b/backend/src/main/java/org/apache/iotdb/admin/mapper/MeasurementMapper.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.mapper;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/mapper/QueryMapper.java 
b/backend/src/main/java/org/apache/iotdb/admin/mapper/QueryMapper.java
index 2f51263..d0c8858 100644
--- a/backend/src/main/java/org/apache/iotdb/admin/mapper/QueryMapper.java
+++ b/backend/src/main/java/org/apache/iotdb/admin/mapper/QueryMapper.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.mapper;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/mapper/UserMapper.java 
b/backend/src/main/java/org/apache/iotdb/admin/mapper/UserMapper.java
index 30ccfc4..55889c2 100644
--- a/backend/src/main/java/org/apache/iotdb/admin/mapper/UserMapper.java
+++ b/backend/src/main/java/org/apache/iotdb/admin/mapper/UserMapper.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.mapper;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/model/dto/ConnectionDTO.java 
b/backend/src/main/java/org/apache/iotdb/admin/model/dto/ConnectionDTO.java
index 4d9055c..a87dac6 100644
--- a/backend/src/main/java/org/apache/iotdb/admin/model/dto/ConnectionDTO.java
+++ b/backend/src/main/java/org/apache/iotdb/admin/model/dto/ConnectionDTO.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.model.dto;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/model/dto/CountDTO.java 
b/backend/src/main/java/org/apache/iotdb/admin/model/dto/CountDTO.java
index 06be78f..c04efa3 100644
--- a/backend/src/main/java/org/apache/iotdb/admin/model/dto/CountDTO.java
+++ b/backend/src/main/java/org/apache/iotdb/admin/model/dto/CountDTO.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.model.dto;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/model/dto/DeviceDTO.java 
b/backend/src/main/java/org/apache/iotdb/admin/model/dto/DeviceDTO.java
index b80fad8..5050673 100644
--- a/backend/src/main/java/org/apache/iotdb/admin/model/dto/DeviceDTO.java
+++ b/backend/src/main/java/org/apache/iotdb/admin/model/dto/DeviceDTO.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.model.dto;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/model/dto/DeviceInfoDTO.java 
b/backend/src/main/java/org/apache/iotdb/admin/model/dto/DeviceInfoDTO.java
index 85e6033..3733e54 100644
--- a/backend/src/main/java/org/apache/iotdb/admin/model/dto/DeviceInfoDTO.java
+++ b/backend/src/main/java/org/apache/iotdb/admin/model/dto/DeviceInfoDTO.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.model.dto;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/model/dto/GroupDTO.java 
b/backend/src/main/java/org/apache/iotdb/admin/model/dto/GroupDTO.java
index 999244c..5aa6070 100644
--- a/backend/src/main/java/org/apache/iotdb/admin/model/dto/GroupDTO.java
+++ b/backend/src/main/java/org/apache/iotdb/admin/model/dto/GroupDTO.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.model.dto;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/model/dto/IotDBRole.java 
b/backend/src/main/java/org/apache/iotdb/admin/model/dto/IotDBRole.java
index 0db4eaa..6d2ba60 100644
--- a/backend/src/main/java/org/apache/iotdb/admin/model/dto/IotDBRole.java
+++ b/backend/src/main/java/org/apache/iotdb/admin/model/dto/IotDBRole.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.model.dto;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/model/dto/IotDBUser.java 
b/backend/src/main/java/org/apache/iotdb/admin/model/dto/IotDBUser.java
index 65050c0..767ad92 100644
--- a/backend/src/main/java/org/apache/iotdb/admin/model/dto/IotDBUser.java
+++ b/backend/src/main/java/org/apache/iotdb/admin/model/dto/IotDBUser.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.model.dto;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/model/dto/IotDBUserDTO.java 
b/backend/src/main/java/org/apache/iotdb/admin/model/dto/IotDBUserDTO.java
index d680bb0..562fc62 100644
--- a/backend/src/main/java/org/apache/iotdb/admin/model/dto/IotDBUserDTO.java
+++ b/backend/src/main/java/org/apache/iotdb/admin/model/dto/IotDBUserDTO.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.model.dto;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/model/dto/MeasurementDTO.java 
b/backend/src/main/java/org/apache/iotdb/admin/model/dto/MeasurementDTO.java
index c925b0f..b9e6fc7 100644
--- a/backend/src/main/java/org/apache/iotdb/admin/model/dto/MeasurementDTO.java
+++ b/backend/src/main/java/org/apache/iotdb/admin/model/dto/MeasurementDTO.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.model.dto;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/model/dto/PrivilegeInfoDTO.java 
b/backend/src/main/java/org/apache/iotdb/admin/model/dto/PrivilegeInfoDTO.java
index f64bf73..69488b6 100644
--- 
a/backend/src/main/java/org/apache/iotdb/admin/model/dto/PrivilegeInfoDTO.java
+++ 
b/backend/src/main/java/org/apache/iotdb/admin/model/dto/PrivilegeInfoDTO.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.model.dto;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/model/dto/QueryDTO.java 
b/backend/src/main/java/org/apache/iotdb/admin/model/dto/QueryDTO.java
index ef9cc01..ca8a86a 100644
--- a/backend/src/main/java/org/apache/iotdb/admin/model/dto/QueryDTO.java
+++ b/backend/src/main/java/org/apache/iotdb/admin/model/dto/QueryDTO.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.model.dto;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/model/dto/SearchDTO.java 
b/backend/src/main/java/org/apache/iotdb/admin/model/dto/SearchDTO.java
index ed9d56d..4d0c8ba 100644
--- a/backend/src/main/java/org/apache/iotdb/admin/model/dto/SearchDTO.java
+++ b/backend/src/main/java/org/apache/iotdb/admin/model/dto/SearchDTO.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.model.dto;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/model/dto/Timeseries.java 
b/backend/src/main/java/org/apache/iotdb/admin/model/dto/Timeseries.java
index 96f075c..ecf72cf 100644
--- a/backend/src/main/java/org/apache/iotdb/admin/model/dto/Timeseries.java
+++ b/backend/src/main/java/org/apache/iotdb/admin/model/dto/Timeseries.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.model.dto;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/model/entity/Connection.java 
b/backend/src/main/java/org/apache/iotdb/admin/model/entity/Connection.java
index c5980ec..6672db9 100644
--- a/backend/src/main/java/org/apache/iotdb/admin/model/entity/Connection.java
+++ b/backend/src/main/java/org/apache/iotdb/admin/model/entity/Connection.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.model.entity;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/model/entity/Device.java 
b/backend/src/main/java/org/apache/iotdb/admin/model/entity/Device.java
index f16828b..8d0abc4 100644
--- a/backend/src/main/java/org/apache/iotdb/admin/model/entity/Device.java
+++ b/backend/src/main/java/org/apache/iotdb/admin/model/entity/Device.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.model.entity;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/model/entity/Measurement.java 
b/backend/src/main/java/org/apache/iotdb/admin/model/entity/Measurement.java
index 7845bf3..c6178a6 100644
--- a/backend/src/main/java/org/apache/iotdb/admin/model/entity/Measurement.java
+++ b/backend/src/main/java/org/apache/iotdb/admin/model/entity/Measurement.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.model.entity;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/model/entity/Query.java 
b/backend/src/main/java/org/apache/iotdb/admin/model/entity/Query.java
index 126d4ca..0d98620 100644
--- a/backend/src/main/java/org/apache/iotdb/admin/model/entity/Query.java
+++ b/backend/src/main/java/org/apache/iotdb/admin/model/entity/Query.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.model.entity;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/model/entity/StorageGroup.java 
b/backend/src/main/java/org/apache/iotdb/admin/model/entity/StorageGroup.java
index 16ec7cd..51e9e0e 100644
--- 
a/backend/src/main/java/org/apache/iotdb/admin/model/entity/StorageGroup.java
+++ 
b/backend/src/main/java/org/apache/iotdb/admin/model/entity/StorageGroup.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.model.entity;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/model/entity/User.java 
b/backend/src/main/java/org/apache/iotdb/admin/model/entity/User.java
index 674435e..9df52b7 100644
--- a/backend/src/main/java/org/apache/iotdb/admin/model/entity/User.java
+++ b/backend/src/main/java/org/apache/iotdb/admin/model/entity/User.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.model.entity;
diff --git a/backend/src/main/java/org/apache/iotdb/admin/model/vo/BaseVO.java 
b/backend/src/main/java/org/apache/iotdb/admin/model/vo/BaseVO.java
index a40e701..07f1179 100644
--- a/backend/src/main/java/org/apache/iotdb/admin/model/vo/BaseVO.java
+++ b/backend/src/main/java/org/apache/iotdb/admin/model/vo/BaseVO.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.model.vo;
diff --git a/backend/src/main/java/org/apache/iotdb/admin/model/vo/ConnVO.java 
b/backend/src/main/java/org/apache/iotdb/admin/model/vo/ConnVO.java
index 5bcd5b8..da2e511 100644
--- a/backend/src/main/java/org/apache/iotdb/admin/model/vo/ConnVO.java
+++ b/backend/src/main/java/org/apache/iotdb/admin/model/vo/ConnVO.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.model.vo;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/model/vo/ConnectionVO.java 
b/backend/src/main/java/org/apache/iotdb/admin/model/vo/ConnectionVO.java
index 4d99194..dbc50ce 100644
--- a/backend/src/main/java/org/apache/iotdb/admin/model/vo/ConnectionVO.java
+++ b/backend/src/main/java/org/apache/iotdb/admin/model/vo/ConnectionVO.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.model.vo;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/model/vo/DeviceInfo.java 
b/backend/src/main/java/org/apache/iotdb/admin/model/vo/DeviceInfo.java
index a2a6b0b..60a5a21 100644
--- a/backend/src/main/java/org/apache/iotdb/admin/model/vo/DeviceInfo.java
+++ b/backend/src/main/java/org/apache/iotdb/admin/model/vo/DeviceInfo.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.model.vo;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/model/vo/DeviceInfoVO.java 
b/backend/src/main/java/org/apache/iotdb/admin/model/vo/DeviceInfoVO.java
index 2ee671b..88f47bd 100644
--- a/backend/src/main/java/org/apache/iotdb/admin/model/vo/DeviceInfoVO.java
+++ b/backend/src/main/java/org/apache/iotdb/admin/model/vo/DeviceInfoVO.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.model.vo;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/model/vo/DeviceVO.java 
b/backend/src/main/java/org/apache/iotdb/admin/model/vo/DeviceVO.java
index 2d12789..de0fec7 100644
--- a/backend/src/main/java/org/apache/iotdb/admin/model/vo/DeviceVO.java
+++ b/backend/src/main/java/org/apache/iotdb/admin/model/vo/DeviceVO.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.model.vo;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/model/vo/GroupInfoVO.java 
b/backend/src/main/java/org/apache/iotdb/admin/model/vo/GroupInfoVO.java
index 0b1bffc..5a3b320 100644
--- a/backend/src/main/java/org/apache/iotdb/admin/model/vo/GroupInfoVO.java
+++ b/backend/src/main/java/org/apache/iotdb/admin/model/vo/GroupInfoVO.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.model.vo;
diff --git a/backend/src/main/java/org/apache/iotdb/admin/model/vo/GroupVO.java 
b/backend/src/main/java/org/apache/iotdb/admin/model/vo/GroupVO.java
index cf56d6e..efbf29c 100644
--- a/backend/src/main/java/org/apache/iotdb/admin/model/vo/GroupVO.java
+++ b/backend/src/main/java/org/apache/iotdb/admin/model/vo/GroupVO.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.model.vo;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/model/vo/IotDBUserVO.java 
b/backend/src/main/java/org/apache/iotdb/admin/model/vo/IotDBUserVO.java
index e12fe85..f5976ad 100644
--- a/backend/src/main/java/org/apache/iotdb/admin/model/vo/IotDBUserVO.java
+++ b/backend/src/main/java/org/apache/iotdb/admin/model/vo/IotDBUserVO.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.model.vo;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/model/vo/MeasurementVO.java 
b/backend/src/main/java/org/apache/iotdb/admin/model/vo/MeasurementVO.java
index 09370dd..3e7574d 100644
--- a/backend/src/main/java/org/apache/iotdb/admin/model/vo/MeasurementVO.java
+++ b/backend/src/main/java/org/apache/iotdb/admin/model/vo/MeasurementVO.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.model.vo;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/model/vo/MeasuremtnInfoVO.java 
b/backend/src/main/java/org/apache/iotdb/admin/model/vo/MeasuremtnInfoVO.java
index 7bc605f..35334dc 100644
--- 
a/backend/src/main/java/org/apache/iotdb/admin/model/vo/MeasuremtnInfoVO.java
+++ 
b/backend/src/main/java/org/apache/iotdb/admin/model/vo/MeasuremtnInfoVO.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.model.vo;
diff --git a/backend/src/main/java/org/apache/iotdb/admin/model/vo/PathVO.java 
b/backend/src/main/java/org/apache/iotdb/admin/model/vo/PathVO.java
index 03c99db..0c9884e 100644
--- a/backend/src/main/java/org/apache/iotdb/admin/model/vo/PathVO.java
+++ b/backend/src/main/java/org/apache/iotdb/admin/model/vo/PathVO.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.model.vo;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/model/vo/PrivilegeInfo.java 
b/backend/src/main/java/org/apache/iotdb/admin/model/vo/PrivilegeInfo.java
index b345637..f1fc85a 100644
--- a/backend/src/main/java/org/apache/iotdb/admin/model/vo/PrivilegeInfo.java
+++ b/backend/src/main/java/org/apache/iotdb/admin/model/vo/PrivilegeInfo.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.model.vo;
diff --git a/backend/src/main/java/org/apache/iotdb/admin/model/vo/QueryVO.java 
b/backend/src/main/java/org/apache/iotdb/admin/model/vo/QueryVO.java
index 29d77df..51d6ddc 100644
--- a/backend/src/main/java/org/apache/iotdb/admin/model/vo/QueryVO.java
+++ b/backend/src/main/java/org/apache/iotdb/admin/model/vo/QueryVO.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.model.vo;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/model/vo/RecordVO.java 
b/backend/src/main/java/org/apache/iotdb/admin/model/vo/RecordVO.java
index b4d3239..6b34ee1 100644
--- a/backend/src/main/java/org/apache/iotdb/admin/model/vo/RecordVO.java
+++ b/backend/src/main/java/org/apache/iotdb/admin/model/vo/RecordVO.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.model.vo;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/model/vo/RoleWithPrivilegesVO.java
 
b/backend/src/main/java/org/apache/iotdb/admin/model/vo/RoleWithPrivilegesVO.java
index ce3233d..21ecfd7 100644
--- 
a/backend/src/main/java/org/apache/iotdb/admin/model/vo/RoleWithPrivilegesVO.java
+++ 
b/backend/src/main/java/org/apache/iotdb/admin/model/vo/RoleWithPrivilegesVO.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.model.vo;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/model/vo/SqlResultVO.java 
b/backend/src/main/java/org/apache/iotdb/admin/model/vo/SqlResultVO.java
index 8628ca2..c810248 100644
--- a/backend/src/main/java/org/apache/iotdb/admin/model/vo/SqlResultVO.java
+++ b/backend/src/main/java/org/apache/iotdb/admin/model/vo/SqlResultVO.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.model.vo;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/model/vo/StorageGroupVO.java 
b/backend/src/main/java/org/apache/iotdb/admin/model/vo/StorageGroupVO.java
index 542f44f..f6876a6 100644
--- a/backend/src/main/java/org/apache/iotdb/admin/model/vo/StorageGroupVO.java
+++ b/backend/src/main/java/org/apache/iotdb/admin/model/vo/StorageGroupVO.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.model.vo;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/service/ConnectionService.java 
b/backend/src/main/java/org/apache/iotdb/admin/service/ConnectionService.java
index 2df0c33..5b63a64 100644
--- 
a/backend/src/main/java/org/apache/iotdb/admin/service/ConnectionService.java
+++ 
b/backend/src/main/java/org/apache/iotdb/admin/service/ConnectionService.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.service;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/service/DeviceService.java 
b/backend/src/main/java/org/apache/iotdb/admin/service/DeviceService.java
index 10a3a63..5d9d202 100644
--- a/backend/src/main/java/org/apache/iotdb/admin/service/DeviceService.java
+++ b/backend/src/main/java/org/apache/iotdb/admin/service/DeviceService.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.service;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/service/GroupService.java 
b/backend/src/main/java/org/apache/iotdb/admin/service/GroupService.java
index 39085b0..1155d55 100644
--- a/backend/src/main/java/org/apache/iotdb/admin/service/GroupService.java
+++ b/backend/src/main/java/org/apache/iotdb/admin/service/GroupService.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.service;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/service/IotDBService.java 
b/backend/src/main/java/org/apache/iotdb/admin/service/IotDBService.java
index 386b9e0..82c15a3 100644
--- a/backend/src/main/java/org/apache/iotdb/admin/service/IotDBService.java
+++ b/backend/src/main/java/org/apache/iotdb/admin/service/IotDBService.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.service;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/service/MeasurementService.java 
b/backend/src/main/java/org/apache/iotdb/admin/service/MeasurementService.java
index f424843..64240db 100644
--- 
a/backend/src/main/java/org/apache/iotdb/admin/service/MeasurementService.java
+++ 
b/backend/src/main/java/org/apache/iotdb/admin/service/MeasurementService.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.service;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/service/QueryService.java 
b/backend/src/main/java/org/apache/iotdb/admin/service/QueryService.java
index 3bd5baf..613966f 100644
--- a/backend/src/main/java/org/apache/iotdb/admin/service/QueryService.java
+++ b/backend/src/main/java/org/apache/iotdb/admin/service/QueryService.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.service;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/service/UserService.java 
b/backend/src/main/java/org/apache/iotdb/admin/service/UserService.java
index 0e7074f..d263646 100644
--- a/backend/src/main/java/org/apache/iotdb/admin/service/UserService.java
+++ b/backend/src/main/java/org/apache/iotdb/admin/service/UserService.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.service;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/service/impl/ConnectionServiceImpl.java
 
b/backend/src/main/java/org/apache/iotdb/admin/service/impl/ConnectionServiceImpl.java
index 345dcf8..40dedbc 100644
--- 
a/backend/src/main/java/org/apache/iotdb/admin/service/impl/ConnectionServiceImpl.java
+++ 
b/backend/src/main/java/org/apache/iotdb/admin/service/impl/ConnectionServiceImpl.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.service.impl;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/service/impl/DeviceServiceImpl.java
 
b/backend/src/main/java/org/apache/iotdb/admin/service/impl/DeviceServiceImpl.java
index 7ee1d55..d507d91 100644
--- 
a/backend/src/main/java/org/apache/iotdb/admin/service/impl/DeviceServiceImpl.java
+++ 
b/backend/src/main/java/org/apache/iotdb/admin/service/impl/DeviceServiceImpl.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.service.impl;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/service/impl/GroupServiceImpl.java
 
b/backend/src/main/java/org/apache/iotdb/admin/service/impl/GroupServiceImpl.java
index 4c7e53d..7ae2122 100644
--- 
a/backend/src/main/java/org/apache/iotdb/admin/service/impl/GroupServiceImpl.java
+++ 
b/backend/src/main/java/org/apache/iotdb/admin/service/impl/GroupServiceImpl.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.service.impl;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/service/impl/IotDBServiceImpl.java
 
b/backend/src/main/java/org/apache/iotdb/admin/service/impl/IotDBServiceImpl.java
index 86684cc..5a69eac 100644
--- 
a/backend/src/main/java/org/apache/iotdb/admin/service/impl/IotDBServiceImpl.java
+++ 
b/backend/src/main/java/org/apache/iotdb/admin/service/impl/IotDBServiceImpl.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.service.impl;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/service/impl/MeasurementServiceImpl.java
 
b/backend/src/main/java/org/apache/iotdb/admin/service/impl/MeasurementServiceImpl.java
index 666cd0c..52a6f65 100644
--- 
a/backend/src/main/java/org/apache/iotdb/admin/service/impl/MeasurementServiceImpl.java
+++ 
b/backend/src/main/java/org/apache/iotdb/admin/service/impl/MeasurementServiceImpl.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.service.impl;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/service/impl/QueryServiceImpl.java
 
b/backend/src/main/java/org/apache/iotdb/admin/service/impl/QueryServiceImpl.java
index 4678b0a..76dd6ae 100644
--- 
a/backend/src/main/java/org/apache/iotdb/admin/service/impl/QueryServiceImpl.java
+++ 
b/backend/src/main/java/org/apache/iotdb/admin/service/impl/QueryServiceImpl.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.service.impl;
diff --git 
a/backend/src/main/java/org/apache/iotdb/admin/service/impl/UserServiceImpl.java
 
b/backend/src/main/java/org/apache/iotdb/admin/service/impl/UserServiceImpl.java
index a1eb23c..8610c39 100644
--- 
a/backend/src/main/java/org/apache/iotdb/admin/service/impl/UserServiceImpl.java
+++ 
b/backend/src/main/java/org/apache/iotdb/admin/service/impl/UserServiceImpl.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.service.impl;
diff --git a/backend/src/main/resources/META-INF/app.properties 
b/backend/src/main/resources/META-INF/app.properties
index 108ef1f..ca3692a 100644
--- a/backend/src/main/resources/META-INF/app.properties
+++ b/backend/src/main/resources/META-INF/app.properties
@@ -1 +1,20 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+
 app.name=test
\ No newline at end of file
diff --git a/backend/src/main/resources/application-dev.properties 
b/backend/src/main/resources/application-dev.properties
index 9286651..4a14685 100644
--- a/backend/src/main/resources/application-dev.properties
+++ b/backend/src/main/resources/application-dev.properties
@@ -1,3 +1,22 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+
 # 指定日志配置文件的位置
 logging.config=classpath:log4j2.xml
 
diff --git a/backend/src/main/resources/application-prod.properties 
b/backend/src/main/resources/application-prod.properties
index 7c28adf..b6b57f8 100644
--- a/backend/src/main/resources/application-prod.properties
+++ b/backend/src/main/resources/application-prod.properties
@@ -1,3 +1,22 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+
 # 指定日志配置文件的位置
 logging.config=classpath:log4j2-prod.xml
 
diff --git a/backend/src/main/resources/application-test.properties 
b/backend/src/main/resources/application-test.properties
index 29b9986..2d959b0 100644
--- a/backend/src/main/resources/application-test.properties
+++ b/backend/src/main/resources/application-test.properties
@@ -1,3 +1,22 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+
 logging.config=classpath:log4j2.xml
 
 server.port=8079
diff --git a/backend/src/main/resources/application.properties 
b/backend/src/main/resources/application.properties
index fd67db5..5aa2fca 100644
--- a/backend/src/main/resources/application.properties
+++ b/backend/src/main/resources/application.properties
@@ -1,2 +1,21 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+
 # 指定配置文件。dev、prod、test分别表示开发、生产、测试环境
 spring.profiles.active=dev
\ No newline at end of file
diff --git a/backend/src/main/resources/log4j2-prod.xml 
b/backend/src/main/resources/log4j2-prod.xml
index 58737d6..3a0f519 100644
--- a/backend/src/main/resources/log4j2-prod.xml
+++ b/backend/src/main/resources/log4j2-prod.xml
@@ -1,4 +1,23 @@
 <?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~ Licensed to the Apache Software Foundation (ASF) under one
+  ~ or more contributor license agreements.  See the NOTICE file
+  ~ distributed with this work for additional information
+  ~ regarding copyright ownership.  The ASF licenses this file
+  ~ to you under the Apache License, Version 2.0 (the
+  ~ "License"); you may not use this file except in compliance
+  ~ with the License.  You may obtain a copy of the License at
+  ~
+  ~   http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing,
+  ~ software distributed under the License is distributed on an
+  ~ "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  ~ KIND, either express or implied.  See the License for the
+  ~ specific language governing permissions and limitations
+  ~ under the License.
+  -->
+
 <configuration status="ERROR">
 
     <Properties>
diff --git a/backend/src/main/resources/log4j2.xml 
b/backend/src/main/resources/log4j2.xml
index 25158ee..21772ee 100644
--- a/backend/src/main/resources/log4j2.xml
+++ b/backend/src/main/resources/log4j2.xml
@@ -1,4 +1,23 @@
 <?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~ Licensed to the Apache Software Foundation (ASF) under one
+  ~ or more contributor license agreements.  See the NOTICE file
+  ~ distributed with this work for additional information
+  ~ regarding copyright ownership.  The ASF licenses this file
+  ~ to you under the Apache License, Version 2.0 (the
+  ~ "License"); you may not use this file except in compliance
+  ~ with the License.  You may obtain a copy of the License at
+  ~
+  ~   http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing,
+  ~ software distributed under the License is distributed on an
+  ~ "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  ~ KIND, either express or implied.  See the License for the
+  ~ specific language governing permissions and limitations
+  ~ under the License.
+  -->
+
 <configuration status="ERROR">
 
     <Properties>
diff --git a/backend/src/test/java/org/apache/iotdb/admin/DemoJDBC.java 
b/backend/src/test/java/org/apache/iotdb/admin/DemoJDBC.java
index f6c35ee..dcf0780 100644
--- a/backend/src/test/java/org/apache/iotdb/admin/DemoJDBC.java
+++ b/backend/src/test/java/org/apache/iotdb/admin/DemoJDBC.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin;
diff --git 
a/backend/src/test/java/org/apache/iotdb/admin/controller/ConnectionControllerTest.java
 
b/backend/src/test/java/org/apache/iotdb/admin/controller/ConnectionControllerTest.java
index 6a3584c..df531d9 100644
--- 
a/backend/src/test/java/org/apache/iotdb/admin/controller/ConnectionControllerTest.java
+++ 
b/backend/src/test/java/org/apache/iotdb/admin/controller/ConnectionControllerTest.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.controller;
diff --git 
a/backend/src/test/java/org/apache/iotdb/admin/controller/IotDBControllerTest.java
 
b/backend/src/test/java/org/apache/iotdb/admin/controller/IotDBControllerTest.java
index 21295c4..d724a47 100644
--- 
a/backend/src/test/java/org/apache/iotdb/admin/controller/IotDBControllerTest.java
+++ 
b/backend/src/test/java/org/apache/iotdb/admin/controller/IotDBControllerTest.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.controller;
diff --git 
a/backend/src/test/java/org/apache/iotdb/admin/controller/QueryControllerTest.java
 
b/backend/src/test/java/org/apache/iotdb/admin/controller/QueryControllerTest.java
index 7ca4edc..cc06ff8 100644
--- 
a/backend/src/test/java/org/apache/iotdb/admin/controller/QueryControllerTest.java
+++ 
b/backend/src/test/java/org/apache/iotdb/admin/controller/QueryControllerTest.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.controller;
diff --git 
a/backend/src/test/java/org/apache/iotdb/admin/controller/TestSystemInfo.java 
b/backend/src/test/java/org/apache/iotdb/admin/controller/TestSystemInfo.java
index 8021ac9..b2b2f43 100644
--- 
a/backend/src/test/java/org/apache/iotdb/admin/controller/TestSystemInfo.java
+++ 
b/backend/src/test/java/org/apache/iotdb/admin/controller/TestSystemInfo.java
@@ -7,13 +7,14 @@
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
  */
 
 package org.apache.iotdb.admin.controller;

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