【错误】：Could not open JDBC Connection for transaction; nested exception is: Communications link failure;The last packet sent successfully to the server was 1 milliseconds ago

# #错误日志
2016-11-10 16:19:20,834 ERROR [org.quartz.core.JobRunShell] - Job DEFAULT.jobtask threw an unhandled Exception: 
org.springframework.scheduling.quartz.JobMethodInvocationFailedException: Invocation of method 'execute' on target class [class com.zsxh.enrol.job.TaskJob] failed; nested exception is org.springframework.transaction.CannotCreateTransactionException: Could not open JDBC Connection for transaction; nested exception is com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

The last packet successfully received from the server was 4,700,816 milliseconds ago.  The last packet sent successfully to the server was 12 milliseconds ago.
	at org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean$MethodInvokingJob.executeInternal(MethodInvokingJobDetailFactoryBean.java:266)
	at org.springframework.scheduling.quartz.QuartzJobBean.execute(QuartzJobBean.java:75)
	at org.quartz.core.JobRunShell.run(JobRunShell.java:202)
	at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:573)
Caused by: org.springframework.transaction.CannotCreateTransactionException: Could not open JDBC Connection for transaction; nested exception is com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

The last packet successfully received from the server was 4,700,816 milliseconds ago.  The last packet sent successfully to the server was 12 milliseconds ago.
	at org.springframework.jdbc.datasource.DataSourceTransactionManager.doBegin(DataSourceTransactionManager.java:245)
	at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:373)
	at org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:427)
	at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:276)
	at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
	at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:207)
	at com.sun.proxy.$Proxy33.syncOrderStatus(Unknown Source)
	at com.zsxh.enrol.job.TaskJob.syncOrderStatusJob(TaskJob.java:30)
	at com.zsxh.enrol.job.TaskJob.execute(TaskJob.java:20)
	at sun.reflect.GeneratedMethodAccessor113.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at org.springframework.util.MethodInvoker.invoke(MethodInvoker.java:269)
	at org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean$MethodInvokingJob.executeInternal(MethodInvokingJobDetailFactoryBean.java:257)
	... 3 more
Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

The last packet successfully received from the server was 4,700,816 milliseconds ago.  The last packet sent successfully to the server was 12 milliseconds ago.
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
	at com.mysql.jdbc.Util.handleNewInstance(Util.java:389)
	at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:1038)
	at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3422)
	at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3322)
	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3762)
	at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2435)
	at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2582)
	at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2531)
	at com.mysql.jdbc.ConnectionImpl.setAutoCommit(ConnectionImpl.java:4852)
	at com.mchange.v2.c3p0.impl.NewProxyConnection.setAutoCommit(NewProxyConnection.java:881)
	at org.springframework.jdbc.datasource.DataSourceTransactionManager.doBegin(DataSourceTransactionManager.java:225)
	... 17 more
Caused by: java.net.SocketException: Connection reset
	at java.net.SocketInputStream.read(SocketInputStream.java:196)
	at java.net.SocketInputStream.read(SocketInputStream.java:122)
	at com.mysql.jdbc.util.ReadAheadInputStream.fill(ReadAheadInputStream.java:100)
	at com.mysql.jdbc.util.ReadAheadInputStream.readFromUnderlyingStreamIfNecessary(ReadAheadInputStream.java:143)
	at com.mysql.jdbc.util.ReadAheadInputStream.read(ReadAheadInputStream.java:173)
	at com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:2911)
	at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3332)
	... 25 more
2016-11-10 16:19:20,845 ERROR [org.quartz.core.ErrorLogger] - Job (DEFAULT.jobtask threw an exception.
org.quartz.SchedulerException: Job threw an unhandled exception. [See nested exception: org.springframework.scheduling.quartz.JobMethodInvocationFailedException: Invocation of method 'execute' on target class [class com.zsxh.enrol.job.TaskJob] failed; nested exception is org.springframework.transaction.CannotCreateTransactionException: Could not open JDBC Connection for transaction; nested exception is com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

The last packet successfully received from the server was 4,700,816 milliseconds ago.  The last packet sent successfully to the server was 12 milliseconds ago.]
	at org.quartz.core.JobRunShell.run(JobRunShell.java:213)
	at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:573)
Caused by: org.springframework.scheduling.quartz.JobMethodInvocationFailedException: Invocation of method 'execute' on target class [class com.zsxh.enrol.job.TaskJob] failed; nested exception is org.springframework.transaction.CannotCreateTransactionException: Could not open JDBC Connection for transaction; nested exception is com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

The last packet successfully received from the server was 4,700,816 milliseconds ago.  The last packet sent successfully to the server was 12 milliseconds ago.
	at org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean$MethodInvokingJob.executeInternal(MethodInvokingJobDetailFactoryBean.java:266)
	at org.springframework.scheduling.quartz.QuartzJobBean.execute(QuartzJobBean.java:75)
	at org.quartz.core.JobRunShell.run(JobRunShell.java:202)
	... 1 more
Caused by: org.springframework.transaction.CannotCreateTransactionException: Could not open JDBC Connection for transaction; nested exception is com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

The last packet successfully received from the server was 4,700,816 milliseconds ago.  The last packet sent successfully to the server was 12 milliseconds ago.
	at org.springframework.jdbc.datasource.DataSourceTransactionManager.doBegin(DataSourceTransactionManager.java:245)
	at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:373)
	at org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:427)
	at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:276)
	at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
	at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:207)
	at com.sun.proxy.$Proxy33.syncOrderStatus(Unknown Source)
	at com.zsxh.enrol.job.TaskJob.syncOrderStatusJob(TaskJob.java:30)
	at com.zsxh.enrol.job.TaskJob.execute(TaskJob.java:20)
	at sun.reflect.GeneratedMethodAccessor113.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at org.springframework.util.MethodInvoker.invoke(MethodInvoker.java:269)
	at org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean$MethodInvokingJob.executeInternal(MethodInvokingJobDetailFactoryBean.java:257)
	... 3 more
Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

The last packet successfully received from the server was 4,700,816 milliseconds ago.  The last packet sent successfully to the server was 12 milliseconds ago.
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
	at com.mysql.jdbc.Util.handleNewInstance(Util.java:389)
	at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:1038)
	at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3422)
	at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3322)
	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3762)
	at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2435)
	at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2582)
	at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2531)
	at com.mysql.jdbc.ConnectionImpl.setAutoCommit(ConnectionImpl.java:4852)
	at com.mchange.v2.c3p0.impl.NewProxyConnection.setAutoCommit(NewProxyConnection.java:881)
	at org.springframework.jdbc.datasource.DataSourceTransactionManager.doBegin(DataSourceTransactionManager.java:225)
	... 17 more
Caused by: java.net.SocketException: Connection reset
	at java.net.SocketInputStream.read(SocketInputStream.java:196)
	at java.net.SocketInputStream.read(SocketInputStream.java:122)
	at com.mysql.jdbc.util.ReadAheadInputStream.fill(ReadAheadInputStream.java:100)
	at com.mysql.jdbc.util.ReadAheadInputStream.readFromUnderlyingStreamIfNecessary(ReadAheadInputStream.java:143)
	at com.mysql.jdbc.util.ReadAheadInputStream.read(ReadAheadInputStream.java:173)
	at com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:2911)
	at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3332)

　　在Java中链接MySql的时候，经常会出现时间长不操作，再去点操作的时候，就会报上面错误，当第二次点击的时候就好了，下面是我用到的解决方法：

在DataSource中加入以下代码：

    <property name="idleConnectionTestPeriod" value="60" />
    <property name="preferredTestQuery" value="select 1" />
    <property name="testConnectionOnCheckin" value="true"/> 

在JDBC链接的后台加上以下代码：

autoReconnect\=true&failOverReadOnly\=false&maxReconnects\=10

例：
jdbc.url=jdbc\:mysql\://127.0.0.1\:3306/db_zsxh_bm?useUnicode\=true&characterEncoding\=UTF-8&zeroDateTimeBehavior\=convertToNull&autoReconnect\=true&failOverReadOnly\=false&maxReconnects\=10