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错误信息:PreparedStatementCallback; SQL [SELECT fid, groupid, name, parentid, haschildren, hidden, categories, createat, lasttopicid, lastpostid, deleted, topiccount, postcount, todaytopiccount, todaypostcount, todaynewtopiccount, todaynewpostcount, virtualforum, nopost, counter, redirecturl, seq, createbyid, version, logid, lastpostat, lastpostbyid, directory,htmlBlock1, htmlBlock2, htmlBlock3, htmlBlock4, htmlBlock5, htmlBlock6, htmlBlock7, htmlBlock8, htmlBlock9, htmlBlock10, htmlBlock11, htmlBlock12, htmlBlock13, htmlBlock14 FROM bbs7_forum WHERE fid = ? ]; Communications link failure The last packet successfully received from the server was 516 milliseconds ago. The last packet sent successfully to the server was 0 milliseconds ago.; nested exception is com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure The last packet successfully received from the server was 516 milliseconds ago. The last packet sent successfully to the server was 0 milliseconds ago.
org.springframework.dao.RecoverableDataAccessException: PreparedStatementCallback; SQL [SELECT fid, groupid, name, parentid, haschildren, hidden, categories, createat, lasttopicid, lastpostid, deleted, topiccount, postcount, todaytopiccount, todaypostcount, todaynewtopiccount, todaynewpostcount, virtualforum, nopost, counter, redirecturl, seq, createbyid, version, logid, lastpostat, lastpostbyid, directory,htmlBlock1, htmlBlock2, htmlBlock3, htmlBlock4, htmlBlock5, htmlBlock6, htmlBlock7, htmlBlock8, htmlBlock9, htmlBlock10, htmlBlock11, htmlBlock12, htmlBlock13, htmlBlock14 FROM bbs7_forum WHERE fid = ? ]; Communications link failure The last packet successfully received from the server was 516 milliseconds ago. The last packet sent successfully to the server was 0 milliseconds ago.; nested exception is com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure The last packet successfully received from the server was 516 milliseconds ago. The last packet sent successfully to the server was 0 milliseconds ago. at org.springframework.jdbc.support.SQLExceptionSubclassTranslator.doTranslate(SQLExceptionSubclassTranslator.java:98) at org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:72) at org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:80) at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:603) at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:637) at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:666) at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:674) at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:718) at cn.pconline.bbs7.dao.ForumDao.findFromDb(ForumDao.java:491) at cn.pconline.bbs7.dao.ForumDao.findFromDb(ForumDao.java:33) at cn.pconline.bbs7.dao.AbstractDao.find(AbstractDao.java:71) at cn.pconline.bbs7.dao.AbstractDao.find(AbstractDao.java:62) at cn.pconline.bbs7.dao.ForumDao.find(ForumDao.java:43) at cn.pconline.bbs7.service.ForumService.findForum(ForumService.java:112) at cn.pconline.bbs7.controller.ForumController.forum(ForumController.java:242) at sun.reflect.GeneratedMethodAccessor199.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:212) at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:126) at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:96) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:617) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:578) at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:900) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:827) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:882) at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:778) at javax.servlet.http.HttpServlet.service(HttpServlet.java:114) at javax.servlet.http.HttpServlet.service(HttpServlet.java:91) at com.caucho.server.dispatch.ServletFilterChain.doFilter(ServletFilterChain.java:103) at cn.pconline.bbs7.utils.EnvFilter.doFilter(EnvFilter.java:56) at com.caucho.server.dispatch.FilterFilterChain.doFilter(FilterFilterChain.java:87) at cn.pconline.util.monitor.MonitorFilter.doFilter(MonitorFilter.java:44) at com.caucho.server.dispatch.FilterFilterChain.doFilter(FilterFilterChain.java:87) at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76) at com.caucho.server.dispatch.FilterFilterChain.doFilter(FilterFilterChain.java:87) at com.caucho.server.webapp.WebAppFilterChain.doFilter(WebAppFilterChain.java:187) at com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:265) at com.caucho.server.http.HttpRequest.handleRequest(HttpRequest.java:273) at com.caucho.server.port.TcpConnection.run(TcpConnection.java:682) at com.caucho.util.ThreadPool$Item.runTasks(ThreadPool.java:730) at com.caucho.util.ThreadPool$Item.run(ThreadPool.java:649) at java.lang.Thread.run(Thread.java:662) Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure The last packet successfully received from the server was 516 milliseconds ago. The last packet sent successfully to the server was 0 milliseconds ago. at sun.reflect.GeneratedConstructorAccessor46.newInstance(Unknown Source) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) at java.lang.reflect.Constructor.newInstance(Constructor.java:513) 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:2535) at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1911) at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:2034) at com.mysql.jdbc.jdbc2.optional.PreparedStatementWrapper.executeQuery(PreparedStatementWrapper.java:702) at com.caucho.sql.UserPreparedStatement.executeQuery(UserPreparedStatement.java:90) at com.caucho.sql.UserPreparedStatement.executeQuery(UserPreparedStatement.java:90) at org.springframework.jdbc.core.JdbcTemplate$1.doInPreparedStatement(JdbcTemplate.java:644) at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:587) ... 41 more 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:2914) at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3332) ... 53 more

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