异常报错：
2017-02-13 09:30:17.597 [startQuertz_Worker-6] ERROR com.autoyol.task.TransStatManageTask#execute [line:257] - 定时任务6. 出错org.springframework.dao.RecoverableDataAccessException: ### Error querying database. Cause: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: The last packet successfully received from the server was 44,997,436 milliseconds ago. The last packet sent successfully to the server was 44,997,437 milliseconds ago. is longer than the server configured value of 'wait_timeout'. You should consider either expiring and/or testing connection validity before use in your application, increasing the server configured values for client timeouts, or using the Connector/J connection property 'autoReconnect=true' to avoid this problem.### The error may exist in com/autoyol/mapper/trans/TransMapper.xml### The error may involve defaultParameterMap### The error occurred while setting parameters### SQL: ~### Cause: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: The last packet successfully received from the server was 44,997,436 milliseconds ago. The last packet sent successfully to the server was 44,997,437 milliseconds ago. is longer than the server configured value of 'wait_timeout'. You should consider either expiring and/or testing connection validity before use in your application, increasing the server configured values for client timeouts, or using the Connector/J connection property 'autoReconnect=true' to avoid this problem.; SQL []; The last packet successfully received from the server was 44,997,436 milliseconds ago. The last packet sent successfully to the server was 44,997,437 milliseconds ago. is longer than the server configured value of 'wait_timeout'. You should consider either expiring and/or testing connection validity before use in your application, increasing the server configured values for client timeouts, or using the Connector/J connection property 'autoReconnect=true' to avoid this problem.; nested exception is com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: The last packet successfully received from the server was 44,997,436 milliseconds ago. The last packet sent successfully to the server was 44,997,437 milliseconds ago. is longer than the server configured value of 'wait_timeout'. You should consider either expiring and/or testing connection validity before use in your application, increasing the server configured values for client timeouts, or using the Connector/J connection property 'autoReconnect=true' to avoid this problem. at org.springframework.jdbc.support.SQLExceptionSubclassTranslator.doTranslate(SQLExceptionSubclassTranslator.java:98) ~[spring-jdbc-4.0.9.RELEASE.jar:4.0.9.RELEASE] at org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:73) ~[spring-jdbc-4.0.9.RELEASE.jar:4.0.9.RELEASE] at org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:81) ~[spring-jdbc-4.0.9.RELEASE.jar:4.0.9.RELEASE] at org.mybatis.spring.MyBatisExceptionTranslator.translateExceptionIfPossible(MyBatisExceptionTranslator.java:74) ~[mybatis-spring-1.2.3.jar:1.2.3] at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:399) ~[mybatis-spring-1.2.3.jar:1.2.3] at com.sun.proxy.$Proxy34.selectList(Unknown Source) ~[na:na] at org.mybatis.spring.SqlSessionTemplate.selectList(SqlSessionTemplate.java:205) ~[mybatis-spring-1.2.3.jar:1.2.3] at org.apache.ibatis.binding.MapperMethod.executeForMany(MapperMethod.java:122) ~[mybatis-3.3.0.jar:3.3.0] at org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:64) ~[mybatis-3.3.0.jar:3.3.0] at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:53) ~[mybatis-3.3.0.jar:3.3.0] at com.sun.proxy.$Proxy43.queryAfterXhStartTransRenterInfoList(Unknown Source) ~[na:na] at com.autoyol.service.trans.TransService.queryAfterXhStartTransRenterInfoList(TransService.java:3859) ~[auto-service-1.0-SNAPSHOT.jar:1.0-SNAPSHOT] at com.autoyol.service.trans.TransService$$FastClassBySpringCGLIB$$82326640.invoke() ~[spring-core-4.0.9.RELEASE.jar:1.0-SNAPSHOT] at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204) ~[spring-core-4.0.9.RELEASE.jar:4.0.9.RELEASE] at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:708) ~[spring-aop-4.0.9.RELEASE.jar:4.0.9.RELEASE] at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157) ~[spring-aop-4.0.9.RELEASE.jar:4.0.9.RELEASE] at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:98) ~[spring-tx-4.0.9.RELEASE.jar:4.0.9.RELEASE] at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:262) ~[spring-tx-4.0.9.RELEASE.jar:4.0.9.RELEASE] at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:95) ~[spring-tx-4.0.9.RELEASE.jar:4.0.9.RELEASE] at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) ~[spring-aop-4.0.9.RELEASE.jar:4.0.9.RELEASE] at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92) ~[spring-aop-4.0.9.RELEASE.jar:4.0.9.RELEASE] at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) ~[spring-aop-4.0.9.RELEASE.jar:4.0.9.RELEASE] at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:644) ~[spring-aop-4.0.9.RELEASE.jar:4.0.9.RELEASE] at com.autoyol.service.trans.TransService$$EnhancerBySpringCGLIB$$d1bda840.queryAfterXhStartTransRenterInfoList( ) ~[spring-core-4.0.9.RELEASE.jar:1.0-SNAPSHOT] at com.autoyol.service.trans.TransTaskService.transNotify(TransTaskService.java:983) ~[auto-service-1.0-SNAPSHOT.jar:1.0-SNAPSHOT] at com.autoyol.service.trans.TransTaskService$$FastClassBySpringCGLIB$$13fabb7b.invoke( ) ~[spring-core-4.0.9.RELEASE.jar:1.0-SNAPSHOT] at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204) ~[spring-core-4.0.9.RELEASE.jar:4.0.9.RELEASE] at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:708) ~[spring-aop-4.0.9.RELEASE.jar:4.0.9.RELEASE] at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157) ~[spring-aop-4.0.9.RELEASE.jar:4.0.9.RELEASE] at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:98) ~[spring-tx-4.0.9.RELEASE.jar:4.0.9.RELEASE] at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:262) ~[spring-tx-4.0.9.RELEASE.jar:4.0.9.RELEASE] at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:95) ~[spring-tx-4.0.9.RELEASE.jar:4.0.9.RELEASE] at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) ~[spring-aop-4.0.9.RELEASE.jar:4.0.9.RELEASE] at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92) ~[spring-aop-4.0.9.RELEASE.jar:4.0.9.RELEASE] at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) ~[spring-aop-4.0.9.RELEASE.jar:4.0.9.RELEASE] at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:644) ~[spring-aop-4.0.9.RELEASE.jar:4.0.9.RELEASE] at com.autoyol.service.trans.TransTaskService$$EnhancerBySpringCGLIB$$d89a1841.transNotify( ) ~[spring-core-4.0.9.RELEASE.jar:1.0-SNAPSHOT] at com.autoyol.task.TransStatManageTask.execute(TransStatManageTask.java:255) ~[auto-service-1.0-SNAPSHOT.jar:1.0-SNAPSHOT] at sun.reflect.GeneratedMethodAccessor3972.invoke(Unknown Source) ~[na:na] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_101] at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_101] at org.springframework.util.MethodInvoker.invoke(MethodInvoker.java:269) [spring-core-4.0.9.RELEASE.jar:4.0.9.RELEASE] at com.autoyol.quartz.BeanInvokingJobDetailFactoryBean$BeanInvokingJob.execute(BeanInvokingJobDetailFactoryBean.java:486) [BeanInvokingJobDetailFactoryBean$BeanInvokingJob.class:na] at org.quartz.core.JobRunShell.run(JobRunShell.java:223) [quartz-1.8.6.jar:na] at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:549) [quartz-1.8.6.jar:na]Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: The last packet successfully received from the server was 44,997,436 milliseconds ago. The last packet sent successfully to the server was 44,997,437 milliseconds ago. is longer than the server configured value of 'wait_timeout'. You should consider either expiring and/or testing connection validity before use in your application, increasing the server configured values for client timeouts, or using the Connector/J connection property 'autoReconnect=true' to avoid this problem. at sun.reflect.GeneratedConstructorAccessor471.newInstance(Unknown Source) ~[na:na] at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[na:1.8.0_101] at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[na:1.8.0_101] at com.mysql.jdbc.Util.handleNewInstance(Util.java:389) ~[mysql-connector-java-5.1.35-bin.jar:5.1.35] at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:1038) ~[mysql-connector-java-5.1.35-bin.jar:5.1.35] at com.mysql.jdbc.MysqlIO.send(MysqlIO.java:3609) ~[mysql-connector-java-5.1.35-bin.jar:5.1.35] at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2417) ~[mysql-connector-java-5.1.35-bin.jar:5.1.35] at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2582) ~[mysql-connector-java-5.1.35-bin.jar:5.1.35] at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2535) ~[mysql-connector-java-5.1.35-bin.jar:5.1.35] at com.mysql.jdbc.MultiHostMySQLConnection.execSQL(MultiHostMySQLConnection.java:140) ~[mysql-connector-java-5.1.35-bin.jar:5.1.35] at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1911) ~[mysql-connector-java-5.1.35-bin.jar:5.1.35] at com.mysql.jdbc.PreparedStatement.execute(PreparedStatement.java:1203) ~[mysql-connector-java-5.1.35-bin.jar:5.1.35] at sun.reflect.GeneratedMethodAccessor129.invoke(Unknown Source) ~[na:na] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_101] at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_101] at com.mysql.jdbc.MultiHostConnectionProxy$JdbcInterfaceProxy.invoke(MultiHostConnectionProxy.java:91) ~[mysql-connector-java-5.1.35-bin.jar:5.1.35] at com.sun.proxy.$Proxy39.execute(Unknown Source) ~[na:na] at org.apache.ibatis.executor.statement.PreparedStatementHandler.query(PreparedStatementHandler.java:62) ~[mybatis-3.3.0.jar:3.3.0] at org.apache.ibatis.executor.statement.RoutingStatementHandler.query(RoutingStatementHandler.java:78) ~[mybatis-3.3.0.jar:3.3.0] at org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:62) ~[mybatis-3.3.0.jar:3.3.0] at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:303) ~[mybatis-3.3.0.jar:3.3.0] at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:154) ~[mybatis-3.3.0.jar:3.3.0] at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:102) ~[mybatis-3.3.0.jar:3.3.0] at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:82) ~[mybatis-3.3.0.jar:3.3.0] at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:120) ~[mybatis-3.3.0.jar:3.3.0] at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:113) ~[mybatis-3.3.0.jar:3.3.0] at sun.reflect.GeneratedMethodAccessor149.invoke(Unknown Source) ~[na:na] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_101] at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_101] at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:386) ~[mybatis-spring-1.2.3.jar:1.2.3] ... 40 common frames omittedCaused by: java.net.SocketException: Connection timed out at java.net.SocketOutputStream.socketWrite0(Native Method) ~[na:1.8.0_101] at java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:109) ~[na:1.8.0_101] at java.net.SocketOutputStream.write(SocketOutputStream.java:153) ~[na:1.8.0_101] at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:82) ~[na:1.8.0_101] at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:140) ~[na:1.8.0_101] at com.mysql.jdbc.MysqlIO.send(MysqlIO.java:3591) ~[mysql-connector-java-5.1.35-bin.jar:5.1.35] ... 64 common frames omitted
2.mysql数据库的配置
# 28800 8小时# 21600 6小时 SET GLOBAL wait_timeout=21600;SHOW GLOBAL VARIABLES LIKE 'wait_timeout';
3.缺少如下配置项：
SELECT 1 true true
I had used the same settings in pure JDBC projects few times before and never encoutered similar exception so now I wanted to ask uncle Google for some answers At the beginning I dove into the MySQL manual to check why autoReconnect isn’t enough in my application but found nothing relevant to my problem. After some thinking I got the idea that maybe some settings in Commons-DBCP are missing so I read dbcp configuration to find that connection could be validated before real usage by specifing two parameters: testOnBorrow=“true” validationQuery=“select 1” . As written in docs:
testOnBorrow – The indication of whether objects will be validated before being borrowed from the pool. If the object fails to validate, it will be dropped from the pool, and we will attempt to borrow another. NOTE – for a true value to have any effect, the validationQuery parameter must be set to a non-null string.
validationQuery – The SQL query that will be used to validate connections from this pool before returning them to the caller. If specified, this query MUST be an SQL SELECT statement that returns at least one row.
Link:http://tomaszdziurko.com/2010/06/solving-com-mysql-jdbc-exceptions-jdbc4-communicationsexception-in-spring-jdbc-based-application
4.完整的数据源配置参考：
${settleDataSource.driverClassName} ${settleDataSource.url} ${settleDataSource.username} ${settleDataSource.password} 200 10 SELECT 1 true true true