異常報錯：
2017-02-13 09:30:17.597 [startQuertz_Worker-6] ERROR com.autoyol.task.TransStatManageTask#execute [line:257] - 定時任務6. 出錯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(<generated>) ~[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(<generated>) ~[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(<generated>) ~[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(<generated>) ~[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 omitted Caused 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數據庫的配置
# 28800 8小時 # 21600 6小時
SET GLOBAL wait_timeout=21600; SHOW GLOBAL VARIABLES LIKE 'wait_timeout';
3.缺少如下配置項：
<property name="validationQuery"><value>SELECT 1</value></property>
<property name="testOnBorrow"><value>true</value></property> <property name="testOnReturn"><value>true</value></property>
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.完整的數據源配置參考：
<bean id="settleDataSource" class="org.apache.tomcat.jdbc.pool.DataSource"> <property name="driverClassName"><value>${settleDataSource.driverClassName}</value></property> <property name="url"><value>${settleDataSource.url}</value></property> <property name="username" ><value>${settleDataSource.username}</value></property> <property name="password"><value>${settleDataSource.password}</value></property> <property name="maxIdle" value="20" /><!--最大空閑連接 --> <property name="minIdle" value="10" /> <!--最小空閑連接 --> <property name="maxActive"><value>200</value></property> <!-- 連接池的最大數據庫連接數。設為0表示無限制。 --> <property name="initialSize"><value>10</value></property> <!-- 初始化連接數量 --> <property name="maxWait" value="10000"/> <!-- 最大建立連接等待時間。如果超過此時間將接到異常。設為-1表示無限制。 --> <property name="removeAbandoned" value="true"/> <!-- 是否自動回收超時連接--> <property name="removeAbandonedTimeout" value="600" /><!-- 泄露的連接可以被刪除的超時值， 單位秒應設置為應用中查詢執行最長的時間,單位為秒 --> <property name="validationInterval" value="60000"/> <!--檢查連接死活的時間間隔（單位：毫妙） 0以下的話不檢查。默認是0。 --> <property name="validationQuery"><value>SELECT 1</value></property> <property name="testOnBorrow"><value>true</value></property> <property name="testOnReturn"><value>true</value></property> <property name="testWhileIdle"><value>true</value></property> <!-- 驗證失敗時，是否將連接從池中丟棄 --> </bean>