16:43:13.437 ERROR org.hibernate.transaction.JDBCTransaction - JDBC begin failed com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link fai lure The last packet successfully received from the server was 288,921 milliseconds a go.  The last packet sent successfully to the server was 15 milliseconds ago.         at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)  ~[na:1.6.0_10]         at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstruct orAccessorImpl.java:39) ~[na:1.6.0_10]         at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingC onstructorAccessorImpl.java:27) ~[na:1.6.0_10]         at java.lang.reflect.Constructor.newInstance(Constructor.java:513) ~[na: 1.6.0_10]         at com.mysql.jdbc.Util.handleNewInstance(Util.java:406) ~[mysql-connecto r-5.1.8.jar:na]         at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:1 074) ~[mysql-connector-5.1.8.jar:na]         at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3030) ~[mysql- connector-5.1.8.jar:na]         at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2916) ~[mysql- connector-5.1.8.jar:na]         at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3459) ~[mysql-co nnector-5.1.8.jar:na]         at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1957) ~[mysql-connect or-5.1.8.jar:na]         at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2107) ~[mysql-conn ector-5.1.8.jar:na]         at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2642) ~[mys ql-connector-5.1.8.jar:na]         at com.mysql.jdbc.ConnectionImpl.setAutoCommit(ConnectionImpl.java:5036)  ~[mysql-connector-5.1.8.jar:na]         at com.mchange.v2.c3p0.impl.NewProxyConnection.setAutoCommit(NewProxyCon nection.java:881) ~[c3p0-0.9.1.2.jar:0.9.1.2]         at org.hibernate.transaction.JDBCTransaction.begin(JDBCTransaction.java: 91) ~[hibernate-3.3.2.jar:na]         at org.hibernate.impl.SessionImpl.beginTransaction(SessionImpl.java:1354 ) [hibernate-3.3.2.jar:na]         at org.springframework.orm.hibernate3.HibernateTransactionManager.doBegi n(HibernateTransactionManager.java:555) [spring.orm-3.0.5.jar:3.0.5.RELEASE]         at org.springframework.transaction.support.AbstractPlatformTransactionMa nager.getTransaction(AbstractPlatformTransactionManager.java:371) [spring.transa ction-3.0.5.jar:3.0.5.RELEASE]         at org.springframework.transaction.interceptor.TransactionAspectSupport. createTransactionIfNecessary(TransactionAspectSupport.java:335) [spring.transact ion-3.0.5.jar:3.0.5.RELEASE]         at org.springframework.transaction.interceptor.TransactionInterceptor.in voke(TransactionInterceptor.java:105) [spring.transaction-3.0.5.jar:3.0.5.RELEAS E]         at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed( ReflectiveMethodInvocation.java:172) [spring.aop-3.0.5.jar:3.0.5.RELEASE]         at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynami cAopProxy.java:202) [spring.aop-3.0.5.jar:3.0.5.RELEASE]         at $Proxy14.getListFromCache(Unknown Source) [na:na]         at com.jeecms.cms.web.FrontContextInterceptor.preHandle(FrontContextInte rceptor.java:35) [jeecms-cms-lc-identity-2012-beta.jar:na]         at org.springframework.web.servlet.DispatcherServlet.doDispatch(Dispatch erServlet.java:781) [spring.web.servlet-3.0.5.jar:3.0.5.RELEASE]         at org.springframework.web.servlet.DispatcherServlet.doService(Dispatche rServlet.java:719) [spring.web.servlet-3.0.5.jar:3.0.5.RELEASE]         at org.springframework.web.servlet.FrameworkServlet.processRequest(Frame workServlet.java:644) [spring.web.servlet-3.0.5.jar:3.0.5.RELEASE]         at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServl et.java:549) [spring.web.servlet-3.0.5.jar:3.0.5.RELEASE]         at javax.servlet.http.HttpServlet.service(HttpServlet.java:617) [servlet -api.jar:na]         at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) [servlet -api.jar:na]         at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl icationFilterChain.java:290) [catalina.jar:6.0.32]         at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF ilterChain.java:206) [catalina.jar:6.0.32]         at org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.do FilterInternal(OpenSessionInViewFilter.java:198) [spring.orm-3.0.5.jar:3.0.5.REL EASE]         at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerR equestFilter.java:76) [spring.web-3.0.5.jar:3.0.5.RELEASE]         at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl icationFilterChain.java:235) [catalina.jar:6.0.32]         at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF ilterChain.java:206) [catalina.jar:6.0.32]         at org.springframework.web.filter.CharacterEncodingFilter.doFilterIntern al(CharacterEncodingFilter.java:88) [spring.web-3.0.5.jar:3.0.5.RELEASE]         at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerR equestFilter.java:76) [spring.web-3.0.5.jar:3.0.5.RELEASE]         at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl icationFilterChain.java:235) [catalina.jar:6.0.32]         at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF ilterChain.java:206) [catalina.jar:6.0.32]         at com.jeecms.common.web.ProcessTimeFilter.doFilter(ProcessTimeFilter.ja va:38) [jeecms-common-2012-beta.jar:na]         at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl icationFilterChain.java:235) [catalina.jar:6.0.32]         at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF ilterChain.java:206) [catalina.jar:6.0.32]         at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperV alve.java:233) [catalina.jar:6.0.32]         at org.apache.catalina.core.StandardContextValve.invoke(StandardContextV alve.java:191) [catalina.jar:6.0.32]         at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.j ava:127) [catalina.jar:6.0.32]         at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.j ava:102) [catalina.jar:6.0.32]         at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVal ve.java:109) [catalina.jar:6.0.32]         at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.jav a:298) [catalina.jar:6.0.32]         at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcesso r.java:864) [tomcat-coyote.jar:6.0.32]         at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.pr ocess(Http11AprProtocol.java:579) [tomcat-coyote.jar:6.0.32]         at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:16 65) [tomcat-coyote.jar:6.0.32]         at java.lang.Thread.run(Thread.java:619) [na:1.6.0_10] Caused by: java.net.SocketException: Software caused connection abort: recv fail ed         at java.net.SocketInputStream.socketRead0(Native Method) ~[na:1.6.0_10]         at java.net.SocketInputStream.read(SocketInputStream.java:129) ~[na:1.6. 0_10]         at com.mysql.jdbc.util.ReadAheadInputStream.fill(ReadAheadInputStream.ja va:113) ~[mysql-connector-5.1.8.jar:na]         at com.mysql.jdbc.util.ReadAheadInputStream.readFromUnderlyingStreamIfNe cessary(ReadAheadInputStream.java:160) ~[mysql-connector-5.1.8.jar:na]         at com.mysql.jdbc.util.ReadAheadInputStream.read(ReadAheadInputStream.ja va:188) ~[mysql-connector-5.1.8.jar:na]         at com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:2472) ~[mysql-connector -5.1.8.jar:na]         at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2927) ~[mysql- connector-5.1.8.jar:na]         ... 46 common frames omitted 16:44:24.562 ERROR org.hibernate.transaction.JDBCTransaction - JDBC begin failed com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link fai lure The last packet successfully received from the server was 360,219 milliseconds a go.  The last packet sent successfully to the server was 0 milliseconds ago.         at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)  ~[na:1.6.0_10]         at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstruct orAccessorImpl.java:39) ~[na:1.6.0_10]         at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingC onstructorAccessorImpl.java:27) ~[na:1.6.0_10]         at java.lang.reflect.Constructor.newInstance(Constructor.java:513) ~[na: 1.6.0_10]         at com.mysql.jdbc.Util.handleNewInstance(Util.java:406) ~[mysql-connecto r-5.1.8.jar:na]         at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:1 074) ~[mysql-connector-5.1.8.jar:na]         at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3030) ~[mysql- connector-5.1.8.jar:na]         at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2916) ~[mysql- connector-5.1.8.jar:na]         at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3459) ~[mysql-co nnector-5.1.8.jar:na]         at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1957) ~[mysql-connect or-5.1.8.jar:na]         at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2107) ~[mysql-conn ector-5.1.8.jar:na]         at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2642) ~[mys ql-connector-5.1.8.jar:na]         at com.mysql.jdbc.ConnectionImpl.setAutoCommit(ConnectionImpl.java:5036)  ~[mysql-connector-5.1.8.jar:na]         at com.mchange.v2.c3p0.impl.NewProxyConnection.setAutoCommit(NewProxyCon nection.java:881) ~[c3p0-0.9.1.2.jar:0.9.1.2]         at org.hibernate.transaction.JDBCTransaction.begin(JDBCTransaction.java: 91) ~[hibernate-3.3.2.jar:na]         at org.hibernate.impl.SessionImpl.beginTransaction(SessionImpl.java:1354 ) [hibernate-3.3.2.jar:na]         at org.springframework.orm.hibernate3.HibernateTransactionManager.doBegi n(HibernateTransactionManager.java:555) [spring.orm-3.0.5.jar:3.0.5.RELEASE]         at org.springframework.transaction.support.AbstractPlatformTransactionMa nager.getTransaction(AbstractPlatformTransactionManager.java:371) [spring.transa ction-3.0.5.jar:3.0.5.RELEASE]         at org.springframework.transaction.interceptor.TransactionAspectSupport. createTransactionIfNecessary(TransactionAspectSupport.java:335) [spring.transact ion-3.0.5.jar:3.0.5.RELEASE]         at org.springframework.transaction.interceptor.TransactionInterceptor.in voke(TransactionInterceptor.java:105) [spring.transaction-3.0.5.jar:3.0.5.RELEAS E]         at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed( ReflectiveMethodInvocation.java:172) [spring.aop-3.0.5.jar:3.0.5.RELEASE]         at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynami cAopProxy.java:202) [spring.aop-3.0.5.jar:3.0.5.RELEASE]         at $Proxy20.getListByChannelIdsForTag(Unknown Source) [na:na]         at com.jeecms.cms.action.directive.abs.AbstractContentDirective.getData( AbstractContentDirective.java:339) [jeecms-cms-lc-identity-2012-beta.jar:na]         at com.jeecms.cms.action.directive.ContentListDirective.getList(ContentL istDirective.java:87) [jeecms-cms-lc-identity-2012-beta.jar:na]         at com.jeecms.cms.action.directive.ContentListDirective.execute(ContentL istDirective.java:51) [jeecms-cms-lc-identity-2012-beta.jar:na]         at freemarker.core.Environment.visit(Environment.java:263) [freemarker-2 .3.16.jar:2.3.16]         at freemarker.core.UnifiedCall.accept(UnifiedCall.java:126) [freemarker- 2.3.16.jar:2.3.16]         at freemarker.core.Environment.visit(Environment.java:210) [freemarker-2 .3.16.jar:2.3.16]         at freemarker.core.MixedContent.accept(MixedContent.java:92) [freemarker -2.3.16.jar:2.3.16]         at freemarker.core.Environment.visit(Environment.java:210) [freemarker-2 .3.16.jar:2.3.16]         at freemarker.core.Environment.process(Environment.java:190) [freemarker -2.3.16.jar:2.3.16]         at freemarker.template.Template.process(Template.java:237) [freemarker-2 .3.16.jar:2.3.16]         at com.jeecms.common.web.springmvc.SimpleFreeMarkerView.renderMergedTemp lateModel(SimpleFreeMarkerView.java:114) [jeecms-common-2012-beta.jar:na]         at org.springframework.web.servlet.view.AbstractTemplateView.renderMerge dOutputModel(AbstractTemplateView.java:167) [spring.web.servlet-3.0.5.jar:3.0.5. RELEASE]         at org.springframework.web.servlet.view.AbstractView.render(AbstractView .java:250) [spring.web.servlet-3.0.5.jar:3.0.5.RELEASE]         at org.springframework.web.servlet.DispatcherServlet.render(DispatcherSe rvlet.java:1047) [spring.web.servlet-3.0.5.jar:3.0.5.RELEASE]         at org.springframework.web.servlet.DispatcherServlet.doDispatch(Dispatch erServlet.java:817) [spring.web.servlet-3.0.5.jar:3.0.5.RELEASE]         at org.springframework.web.servlet.DispatcherServlet.doService(Dispatche rServlet.java:719) [spring.web.servlet-3.0.5.jar:3.0.5.RELEASE]         at org.springframework.web.servlet.FrameworkServlet.processRequest(Frame workServlet.java:644) [spring.web.servlet-3.0.5.jar:3.0.5.RELEASE]         at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServl et.java:549) [spring.web.servlet-3.0.5.jar:3.0.5.RELEASE]         at javax.servlet.http.HttpServlet.service(HttpServlet.java:617) [servlet -api.jar:na]         at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) [servlet -api.jar:na]         at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl icationFilterChain.java:290) [catalina.jar:6.0.32]         at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF ilterChain.java:206) [catalina.jar:6.0.32]         at org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.do FilterInternal(OpenSessionInViewFilter.java:198) [spring.orm-3.0.5.jar:3.0.5.REL EASE]         at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerR equestFilter.java:76) [spring.web-3.0.5.jar:3.0.5.RELEASE]         at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl icationFilterChain.java:235) [catalina.jar:6.0.32]         at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF ilterChain.java:206) [catalina.jar:6.0.32]         at org.springframework.web.filter.CharacterEncodingFilter.doFilterIntern al(CharacterEncodingFilter.java:88) [spring.web-3.0.5.jar:3.0.5.RELEASE]         at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerR equestFilter.java:76) [spring.web-3.0.5.jar:3.0.5.RELEASE]         at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl icationFilterChain.java:235) [catalina.jar:6.0.32]         at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF ilterChain.java:206) [catalina.jar:6.0.32]         at com.jeecms.common.web.ProcessTimeFilter.doFilter(ProcessTimeFilter.ja va:38) [jeecms-common-2012-beta.jar:na]         at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl icationFilterChain.java:235) [catalina.jar:6.0.32]         at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF ilterChain.java:206) [catalina.jar:6.0.32]         at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperV alve.java:233) [catalina.jar:6.0.32]         at org.apache.catalina.core.StandardContextValve.invoke(StandardContextV alve.java:191) [catalina.jar:6.0.32]         at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.j ava:127) [catalina.jar:6.0.32]         at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.j ava:102) [catalina.jar:6.0.32]         at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVal ve.java:109) [catalina.jar:6.0.32]         at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.jav a:298) [catalina.jar:6.0.32]         at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcesso r.java:864) [tomcat-coyote.jar:6.0.32]         at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.pr ocess(Http11AprProtocol.java:579) [tomcat-coyote.jar:6.0.32]         at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:16 65) [tomcat-coyote.jar:6.0.32]         at java.lang.Thread.run(Thread.java:619) [na:1.6.0_10] Caused by: java.io.EOFException: Can not read response from server. Expected to read 4 bytes, read 0 bytes before connection was unexpectedly lost.         at com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:2475) ~[mysql-connector -5.1.8.jar:na]         at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2927) ~[mysql- connector-5.1.8.jar:na]         ... 59 common frames omitted

我按照网上说的方法给jdbc连接加了autoReconnect=true依然没有解决

这个问题我们目前是没有碰到，可能和您的一些设置有关

HTTP Status 500 - 

--------------------------------------------------------------------------------

type Exception report

message 

description The server encountered an internal error () that prevented it from fulfilling this request.

exception 

org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.springframework.transaction.CannotCreateTransactionException: Could not open Hibernate Session for transaction; nested exception is org.hibernate.TransactionException: JDBC begin failed: 
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:656)
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:549)
javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:198)
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
com.jeecms.common.web.ProcessTimeFilter.doFilter(ProcessTimeFilter.java:38)


root cause 

org.springframework.transaction.CannotCreateTransactionException: Could not open Hibernate Session for transaction; nested exception is org.hibernate.TransactionException: JDBC begin failed: 
org.springframework.orm.hibernate3.HibernateTransactionManager.doBegin(HibernateTransactionManager.java:596)
org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:371)
org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:335)
org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:105)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
$Proxy50.retrieveUserIdFromSession(Unknown Source)
com.jeecms.cms.web.FrontContextInterceptor.preHandle(FrontContextInterceptor.java:83)
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:781)
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:719)
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:644)
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:549)
javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:198)
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
com.jeecms.common.web.ProcessTimeFilter.doFilter(ProcessTimeFilter.java:38)


root cause 

org.hibernate.TransactionException: JDBC begin failed: 
org.hibernate.transaction.JDBCTransaction.begin(JDBCTransaction.java:96)
org.hibernate.impl.SessionImpl.beginTransaction(SessionImpl.java:1354)
org.springframework.orm.hibernate3.HibernateTransactionManager.doBegin(HibernateTransactionManager.java:555)
org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:371)
org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:335)
org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:105)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
$Proxy50.retrieveUserIdFromSession(Unknown Source)
com.jeecms.cms.web.FrontContextInterceptor.preHandle(FrontContextInterceptor.java:83)
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:781)
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:719)
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:644)
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:549)
javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:198)
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
com.jeecms.common.web.ProcessTimeFilter.doFilter(ProcessTimeFilter.java:38)


root cause 

com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

The last packet successfully received from the server was 784,063 milliseconds ago.  The last packet sent successfully to the server was 0 milliseconds ago.
sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
java.lang.reflect.Constructor.newInstance(Constructor.java:513)
com.mysql.jdbc.Util.handleNewInstance(Util.java:406)
com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:1074)
com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3030)
com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2916)
com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3459)
com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1957)
com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2107)
com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2642)
com.mysql.jdbc.ConnectionImpl.setAutoCommit(ConnectionImpl.java:5036)
com.mchange.v2.c3p0.impl.NewProxyConnection.setAutoCommit(NewProxyConnection.java:881)
org.hibernate.transaction.JDBCTransaction.begin(JDBCTransaction.java:91)
org.hibernate.impl.SessionImpl.beginTransaction(SessionImpl.java:1354)
org.springframework.orm.hibernate3.HibernateTransactionManager.doBegin(HibernateTransactionManager.java:555)
org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:371)
org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:335)
org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:105)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
$Proxy50.retrieveUserIdFromSession(Unknown Source)
com.jeecms.cms.web.FrontContextInterceptor.preHandle(FrontContextInterceptor.java:83)
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:781)
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:719)
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:644)
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:549)
javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:198)
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
com.jeecms.common.web.ProcessTimeFilter.doFilter(ProcessTimeFilter.java:38)


root cause 

java.net.SocketException: Software caused connection abort: recv failed
java.net.SocketInputStream.socketRead0(Native Method)
java.net.SocketInputStream.read(SocketInputStream.java:129)
com.mysql.jdbc.util.ReadAheadInputStream.fill(ReadAheadInputStream.java:113)
com.mysql.jdbc.util.ReadAheadInputStream.readFromUnderlyingStreamIfNecessary(ReadAheadInputStream.java:160)
com.mysql.jdbc.util.ReadAheadInputStream.read(ReadAheadInputStream.java:188)
com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:2472)
com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2927)
com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2916)
com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3459)
com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1957)
com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2107)
com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2642)
com.mysql.jdbc.ConnectionImpl.setAutoCommit(ConnectionImpl.java:5036)
com.mchange.v2.c3p0.impl.NewProxyConnection.setAutoCommit(NewProxyConnection.java:881)
org.hibernate.transaction.JDBCTransaction.begin(JDBCTransaction.java:91)
org.hibernate.impl.SessionImpl.beginTransaction(SessionImpl.java:1354)
org.springframework.orm.hibernate3.HibernateTransactionManager.doBegin(HibernateTransactionManager.java:555)
org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:371)
org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:335)
org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:105)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
$Proxy50.retrieveUserIdFromSession(Unknown Source)
com.jeecms.cms.web.FrontContextInterceptor.preHandle(FrontContextInterceptor.java:83)
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:781)
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:719)
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:644)
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:549)
javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:198)
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
com.jeecms.common.web.ProcessTimeFilter.doFilter(ProcessTimeFilter.java:38)

页面上报这样的异常，出现很频繁

安装好就这样么？

安装好就这样了

这个要看看您的环境

环境是tomcat6 mysql5.1

我也遇到这个问题，也加上了那个语句，不管用。这里人根本解决不了，不可能没遇到。

的确没有遇到过，可能是您的mysql配置问题