每天早上上班，发现公司的测试服务器都会报如下错误，百思不得骑姐。
[00:31:55|ERROR|(org.hibernate.transaction.JDBCTransaction)]=[JDBC begin failed]
com.mysql.jdbc.CommunicationsException: Communications link failure due to under
lying exception:
** BEGIN NESTED EXCEPTION **
java.net.SocketException
MESSAGE: Software caused connection abort: socket write error
STACKTRACE:
java.net.SocketException: Software caused connection abort: socket write error
at java.net.SocketOutputStream.socketWrite0(Native Method)
at java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:92)
at java.net.SocketOutputStream.write(SocketOutputStream.java:136)
at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:65
)
at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:123)
at com.mysql.jdbc.MysqlIO.send(MysqlIO.java:2637)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1554)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1665)
at com.mysql.jdbc.Connection.execSQL(Connection.java:3118)
at com.mysql.jdbc.Connection.setAutoCommit(Connection.java:5215)
at org.apache.commons.dbcp.DelegatingConnection.setAutoCommit(Delegating
Connection.java:331)
at org.apache.commons.dbcp.PoolingDataSource$PoolGuardConnectionWrapper.
setAutoCommit(PoolingDataSource.java:317)
at org.hibernate.transaction.JDBCTransaction.begin(JDBCTransaction.java:
91)
at org.hibernate.impl.SessionImpl.beginTransaction(SessionImpl.java:1354
)
at com.concerners.dao.ConcernersDAOImp.getDConcernerCount(ConcernersDAOI
mp.java:58)
at com.concerners.service.imp.ConcernersServiceImp.getDConcernerCount(Co
ncernersServiceImp.java:53)
at com.mobile.serverceInf.imp.MobileServletInterface.doGet(MobileServlet
Interface.java:1312)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:723)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperV
alve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextV
alve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.j
ava:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.j
ava:103)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVal
ve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.jav
a:293)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java
:861)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.proce
ss(Http11Protocol.java:620)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:48
9)
at java.lang.Thread.run(Thread.java:662)
** END NESTED EXCEPTION **
Last packet sent to the server was 1 ms ago.
at com.mysql.jdbc.MysqlIO.send(MysqlIO.java:2652)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1554)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1665)
at com.mysql.jdbc.Connection.execSQL(Connection.java:3118)
at com.mysql.jdbc.Connection.setAutoCommit(Connection.java:5215)
at org.apache.commons.dbcp.DelegatingConnection.setAutoCommit(Delegating
Connection.java:331)
at org.apache.commons.dbcp.PoolingDataSource$PoolGuardConnectionWrapper.
setAutoCommit(PoolingDataSource.java:317)
at org.hibernate.transaction.JDBCTransaction.begin(JDBCTransaction.java:
91)
at org.hibernate.impl.SessionImpl.beginTransaction(SessionImpl.java:1354
)
at com.concerners.dao.ConcernersDAOImp.getDConcernerCount(ConcernersDAOI
mp.java:58)
at com.concerners.service.imp.ConcernersServiceImp.getDConcernerCount(Co
ncernersServiceImp.java:53)
at com.mobile.serverceInf.imp.MobileServletInterface.doGet(MobileServlet
Interface.java:1312)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:723)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperV
alve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextV
alve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.j
ava:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.j
ava:103)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVal
ve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.jav
a:293)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java
:861)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.proce
ss(Http11Protocol.java:620)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:48
9)
at java.lang.Thread.run(Thread.java:662)
后来修改了配置文件解决了此问题。
applicationContext.xml
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
destroy-method="close">
<property name="driverClassName" value="com.mysql.jdbc.Driver" />
<property name="url" value="jdbc:mysql://localhost/db?autoReconnect=true&autoReconnectForPools=true"/>
<property name="username" value="root"/>
<property name="password" value="123"/>
<property name="validationQuery" value="SELECT 1"/>
<property name="testOnBorrow" value="true"/>
</bean>
其实我只加
<property name="validationQuery" value="SELECT 1"/>
<property name="testOnBorrow" value="true"/>
就能实现自动重连，测试为mysql 。