> Using mybatis, the parameter is list to report null pointer error. I can't understand `the parameter is list`, what's mean?
------------------ Liang Zhang (John) Apache ShardingSphere & Dubbo xu <[email protected]> 于2019年12月6日周五 下午5:48写道： > Using mybatis, the parameter is list to report null pointer error. The > version of mybatis is 3.2.0，the version of sharding is 4.0.0-RC3 ,The > specific log is as follows： > > > > > Fetched SqlSession > [org.apache.ibatis.session.defaults.DefaultSqlSession@9d7c7b] from > current transaction > ooo Using Connection > [org.apache.shardingsphere.shardingjdbc.jdbc.core.connection.ShardingConnection@121f239 > ] > ==> Preparing: INSERT INTO cv_task_mark_user ( team_id , task_id , pin, > creator, created, deleted ) VALUES (?,?,?,?,now(),0) > ==> Parameters: 122(Long), 2446(Long), xukaiwei1(String), xukaiwei1(String) > [2019-12-06 17:39:12] INFO ShardingSphere-SQL(http-nio-8088-exec-8); > :Rule Type: sharding > [2019-12-06 17:39:12] INFO ShardingSphere-SQL(http-nio-8088-exec-8); > :Logic SQL: INSERT INTO cv_task_mark_user ( > team_id , > task_id , > pin, > creator, > created, > deleted > ) > VALUES > > (?,?,?,?,now(),0) > [2019-12-06 17:39:12] INFO ShardingSphere-SQL(http-nio-8088-exec-8); > :SQLStatement: > InsertSQLStatementContext(super=CommonSQLStatementContext(sqlStatement=org.apache.shardingsphere.core.parse.sql.statement.dml.InsertStatement@115c689, > tablesContext=TablesContext(tables=[Table(name=cv_task_mark_user, > alias=Optional.absent())], schema=Optional.absent())), > columnNames=[team_id, task_id, pin, creator, created, deleted], > insertValueContexts=[InsertValueContext(parametersCount=4, > valueExpressions=[ParameterMarkerExpressionSegment(startIndex=180, > stopIndex=180, parameterMarkerIndex=0), > ParameterMarkerExpressionSegment(startIndex=182, stopIndex=182, > parameterMarkerIndex=1), ParameterMarkerExpressionSegment(startIndex=184, > stopIndex=184, parameterMarkerIndex=2), > ParameterMarkerExpressionSegment(startIndex=186, stopIndex=186, > parameterMarkerIndex=3), CommonExpressionSegment(startIndex=188, > stopIndex=192, text=now()), LiteralExpressionSegment(startIndex=194, > stopIndex=194, literals=0)], parameters=[122, 2446, xukaiwei1, xukaiwei1])]) > [2019-12-06 17:39:12] INFO ShardingSphere-SQL(http-nio-8088-exec-8); > :Actual SQL: cv_dataSource ::: INSERT INTO cv_task_mark_user ( > team_id , > task_id , > pin, > creator, > created, > deleted > ) > VALUES > > (?, ?, ?, ?, now(), 0) ::: [122, 2446, xukaiwei1, xukaiwei1] > Releasing transactional SqlSession > [org.apache.ibatis.session.defaults.DefaultSqlSession@9d7c7b] > Transaction synchronization rolling back SqlSession > [org.apache.ibatis.session.defaults.DefaultSqlSession@9d7c7b] > Transaction synchronization closing SqlSession > [org.apache.ibatis.session.defaults.DefaultSqlSession@9d7c7b] > [2019-12-06 17:39:19] DEBUG > org.springframework.web.servlet.mvc.method.annotation.ExceptionHandlerExceptionResolver(http-nio-8088-exec-8); > :Resolving exception from handler [public net.sf.json.JSONObject > com.jd.bdp.cv.web.controller.CvTaskController.save(com.jd.bdp.cv.domain.CvUser,com.jd.bdp.cv.domain.CvTask,org.springframework.web.multipart.MultipartFile,javax.servlet.http.HttpServletRequest) > throws java.lang.Exception]: org.mybatis.spring.MyBatisSystemException: > nested exception is org.apache.ibatis.exceptions.PersistenceException: > ### Error querying database. Cause: java.lang.NullPointerException > ### The error may exist in URL > [jar:file:/D:/workspace_bdp/bdp_cv_inter/cv-web/target/cv-web/WEB-INF/lib/cv-dao-1.0-SNAPSHOT.jar!/com/jd/bdp/cv/dao/CvTaskMarkUser.xml] > ### The error may involve > com.jd.bdp.cv.dao.CvTaskMarkUserDao.insertByMarkPins-Inline > ### The error occurred while setting parameters > ### SQL: INSERT INTO cv_task_mark_user ( team_id , task_id > , pin, creator, created, deleted ) > VALUES (?,?,?,?,now(),0) > ### Cause: java.lang.NullPointerException > [2019-12-06 17:39:19] DEBUG > org.springframework.web.servlet.mvc.method.annotation.ExceptionHandlerExceptionResolver(http-nio-8088-exec-8); > :Resolving exception from handler [public net.sf.json.JSONObject > com.jd.bdp.cv.web.controller.CvTaskController.save(com.jd.bdp.cv.domain.CvUser,com.jd.bdp.cv.domain.CvTask,org.springframework.web.multipart.MultipartFile,javax.servlet.http.HttpServletRequest) > throws java.lang.Exception]: org.mybatis.spring.MyBatisSystemException: > nested exception is org.apache.ibatis.exceptions.PersistenceException: > ### Error querying database. Cause: java.lang.NullPointerException > ### The error may exist in URL > [jar:file:/D:/workspace_bdp/bdp_cv_inter/cv-web/target/cv-web/WEB-INF/lib/cv-dao-1.0-SNAPSHOT.jar!/com/jd/bdp/cv/dao/CvTaskMarkUser.xml] > ### The error may involve > com.jd.bdp.cv.dao.CvTaskMarkUserDao.insertByMarkPins-Inline > ### The error occurred while setting parameters > ### SQL: INSERT INTO cv_task_mark_user ( team_id , task_id > , pin, creator, created, deleted ) > VALUES (?,?,?,?,now(),0) > ### Cause: java.lang.NullPointerException > [2019-12-06 17:39:19] DEBUG > org.springframework.web.servlet.mvc.method.annotation.ExceptionHandlerExceptionResolver(http-nio-8088-exec-8); > :Invoking @ExceptionHandler method: public void > com.jd.bdp.cv.web.controller.ExceptionHandleController.page500(java.lang.Exception,javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse) > throws java.lang.Exception > [2019-12-06 17:39:19] DEBUG > org.springframework.web.servlet.mvc.method.annotation.ExceptionHandlerExceptionResolver(http-nio-8088-exec-8); > :Invoking @ExceptionHandler method: public void > com.jd.bdp.cv.web.controller.ExceptionHandleController.page500(java.lang.Exception,javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse) > throws java.lang.Exception > [2019-12-06 17:39:19] ERROR > com.jd.bdp.cv.web.controller.SqlController(http-nio-8088-exec-8); :系统错误 > org.mybatis.spring.MyBatisSystemException: nested exception is > org.apache.ibatis.exceptions.PersistenceException: > ### Error querying database. Cause: java.lang.NullPointerException > ### The error may exist in URL > [jar:file:/D:/workspace_bdp/bdp_cv_inter/cv-web/target/cv-web/WEB-INF/lib/cv-dao-1.0-SNAPSHOT.jar!/com/jd/bdp/cv/dao/CvTaskMarkUser.xml] > ### The error may involve > com.jd.bdp.cv.dao.CvTaskMarkUserDao.insertByMarkPins-Inline > ### The error occurred while setting parameters > ### SQL: INSERT INTO cv_task_mark_user ( team_id , task_id > , pin, creator, created, deleted ) > VALUES (?,?,?,?,now(),0) > ### Cause: java.lang.NullPointerException > at > org.mybatis.spring.MyBatisExceptionTranslator.translateExceptionIfPossible(MyBatisExceptionTranslator.java:75) > at > org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:368) > at com.sun.proxy.$Proxy18.selectOne(Unknown Source) > at > org.mybatis.spring.SqlSessionTemplate.selectOne(SqlSessionTemplate.java:163) > at org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:63) > at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:43) > at com.sun.proxy.$Proxy45.insertByMarkPins(Unknown Source) > at > com.jd.bdp.cv.service.impl.CvTaskMarkUserServiceImpl.insertTaskMarkUserByPins(CvTaskMarkUserServiceImpl.java:61) > at > com.jd.bdp.cv.service.impl.CvTaskMarkUserServiceImpl$$FastClassByCGLIB$$d892ac4.invoke(<generated>) > at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204) > at > org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:698) > at > org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150) > at > org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:96) > at > org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:260) > at > org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:94) > at > org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172) > at > org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:631) > at > com.jd.bdp.cv.service.impl.CvTaskMarkUserServiceImpl$$EnhancerByCGLIB$$3144dda3.insertTaskMarkUserByPins(<generated>) > at > com.jd.bdp.cv.service.impl.CvTaskServiceImpl.saveTask(CvTaskServiceImpl.java:285) > at > com.jd.bdp.cv.service.impl.CvTaskServiceImpl$$FastClassByCGLIB$$b24d251c.invoke(<generated>) > at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204) > at > org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:698) > at > org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150) > at > org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:96) > at > org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:260) > at > org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:94) > at > org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172) > at > org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:631) > at > com.jd.bdp.cv.service.impl.CvTaskServiceImpl$$EnhancerByCGLIB$$4ae3a4fb.saveTask(<generated>) > at > com.jd.bdp.cv.web.controller.CvTaskController.saveCvTask(CvTaskController.java:528) > at > com.jd.bdp.cv.web.controller.CvTaskController.save(CvTaskController.java:374) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) > at java.lang.reflect.Method.invoke(Method.java:497) > at > org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219) > at > org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132) > at > org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104) > at > org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745) > at > org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686) > at > org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80) > at > org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925) > at > org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856) > at > org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936) > at > org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:838) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:661) > at > org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:742) > at > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) > at > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) > at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) > at > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) > at > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) > at > org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88) > at > org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) > at > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) > at > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) > at > org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198) > at > org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) > at > org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:504) > at > org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140) > at > org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81) > at > org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:650) > at > org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) > at > org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342) > at > org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:803) > at > org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) > at > org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:790) > at org.apache.tomcat.util.net > .NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1459) > at org.apache.tomcat.util.net > .SocketProcessorBase.run(SocketProcessorBase.java:49) > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) > at > org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) > at java.lang.Thread.run(Thread.java:745) > Caused by: org.apache.ibatis.exceptions.PersistenceException: > ### Error querying database. Cause: java.lang.NullPointerException > ### The error may exist in URL > [jar:file:/D:/workspace_bdp/bdp_cv_inter/cv-web/target/cv-web/WEB-INF/lib/cv-dao-1.0-SNAPSHOT.jar!/com/jd/bdp/cv/dao/CvTaskMarkUser.xml] > ### The error may involve > com.jd.bdp.cv.dao.CvTaskMarkUserDao.insertByMarkPins-Inline > ### The error occurred while setting parameters > ### SQL: INSERT INTO cv_task_mark_user ( team_id , task_id > , pin, creator, created, deleted ) > VALUES (?,?,?,?,now(),0) > ### Cause: java.lang.NullPointerException > at > org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:23) > at > org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:107) > at > org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:98) > at > org.apache.ibatis.session.defaults.DefaultSqlSession.selectOne(DefaultSqlSession.java:62) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) > at java.lang.reflect.Method.invoke(Method.java:497) > at > org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:358) > ... 72 more > Caused by: java.lang.NullPointerException > at > org.apache.shardingsphere.core.execute.sql.execute.result.StreamQueryResult.<init>(StreamQueryResult.java:52) > at > org.apache.shardingsphere.shardingjdbc.jdbc.core.statement.ShardingPreparedStatement.getResultSet(ShardingPreparedStatement.java:129) > at sun.reflect.GeneratedMethodAccessor119.invoke(Unknown Source) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) > at java.lang.reflect.Method.invoke(Method.java:497) > at > org.apache.ibatis.logging.jdbc.PreparedStatementLogger.invoke(PreparedStatementLogger.java:65) > at com.sun.proxy.$Proxy27.getResultSet(Unknown Source) > at > org.apache.ibatis.executor.resultset.FastResultSetHandler.handleResultSets(FastResultSetHandler.java:140) > at > org.apache.ibatis.executor.statement.PreparedStatementHandler.query(PreparedStatementHandler.java:57) > at > org.apache.ibatis.executor.statement.RoutingStatementHandler.query(RoutingStatementHandler.java:70) > at > org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:57) > at > org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:259) > at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:132) > at > org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:105) > at > org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:81) > at > org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:104) > ... 79 more
