iorilchen opened a new issue #2535: spring boot with dubbo 2.6.3, cause ‘ Cannot initialize context because there is already a root application context present - check whether you have multiple ContextLoader* definitions in your web.xml’ URL: https://github.com/apache/incubator-dubbo/issues/2535 ### Environment * Dubbo version: 2.6.3 * Operating System version: Linux ubuntu 4.9.0 * Java version: 1.8 * tomcat-7.0.82.4 * spring boot 2.0.1.RELEASE ### Steps to reproduce this issue a web spring boot project use dubbo as a consumer,when deploy it to tomcat-7.0.82.4 ,start the applicaton failed, but it start success in IDE without tomcat Pls. provide [GitHub address] to reproduce this issue. ### Expected Result web project start success ### Actual Result failed If there is an exception, please attach the exception trace: [ERROR] - Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener java.lang.IllegalStateException: Cannot initialize context because there is already a root application context present - check whether you have multiple ContextLoader* definitions in your web.xml! at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:262) at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:103) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:5110) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5633) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:1015) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:991) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:652) at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1296) at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:2038) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748)
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