java - HTTP 状态 500 - 处理 JSP 页面时发生异常（休眠）

Question

HTTP Status 500 - An exception occurred processing JSP page /xxxxxxx/Complete.jsp at line 51

type Exception report

message An exception occurred processing JSP page /xxxxxxx/Complete.jsp at line 51

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

exception

org.apache.jasper.JasperException: An exception occurred processing JSP page /TOS0913_147592/Complete.jsp at line 51

48:             
49:         us.setDate(Util.getIndianDate());
50:         us.setTime(Util.getIndianTime());
51:         UserSurveyDetailsDao.saveuser(us);
52:             
53: %>
54: 


Stacktrace:
    org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:568)
    org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:470)
    org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
    org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
root cause

org.hibernate.exception.JDBCConnectionException: could not execute statement
    org.hibernate.exception.internal.SQLStateConversionDelegate.convert(SQLStateConversionDelegate.java:132)
    org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:49)
    org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:125)
    org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:110)
    org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.executeUpdate(ResultSetReturnImpl.java:136)
    org.hibernate.id.IdentityGenerator$GetGeneratedKeysDelegate.executeAndExtract(IdentityGenerator.java:96)
    org.hibernate.id.insert.AbstractReturningDelegate.performInsert(AbstractReturningDelegate.java:58)
    org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2975)
    org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:3487)
    org.hibernate.action.internal.EntityIdentityInsertAction.execute(EntityIdentityInsertAction.java:81)
    org.hibernate.engine.spi.ActionQueue.execute(ActionQueue.java:377)
    org.hibernate.engine.spi.ActionQueue.addResolvedEntityInsertAction(ActionQueue.java:214)
    org.hibernate.engine.spi.ActionQueue.addInsertAction(ActionQueue.java:194)
    org.hibernate.engine.spi.ActionQueue.addAction(ActionQueue.java:178)
    org.hibernate.event.internal.AbstractSaveEventListener.addInsertAction(AbstractSaveEventListener.java:321)
    org.hibernate.event.internal.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:286)
    org.hibernate.event.internal.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:192)
    org.hibernate.event.internal.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:125)
    org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:206)
    org.hibernate.event.internal.DefaultSaveEventListener.saveWithGeneratedOrRequestedId(DefaultSaveEventListener.java:55)
    org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:191)
    org.hibernate.event.internal.DefaultSaveEventListener.performSaveOrUpdate(DefaultSaveEventListener.java:49)
    org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:90)
    org.hibernate.internal.SessionImpl.fireSave(SessionImpl.java:764)
    org.hibernate.internal.SessionImpl.save(SessionImpl.java:756)
    org.hibernate.internal.SessionImpl.save(SessionImpl.java:752)
    com.SurveyWithoutVendor.Dao.UserSurveyDetailsDao.saveuser(UserSurveyDetailsDao.java:14)
    org.apache.jsp.TOS0913_005f147592.Complete_jsp._jspService(Complete_jsp.java:115)
    org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
    org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:432)
    org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
    org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
root cause

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

The last packet successfully received from the server was 430,396 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:411)
    com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:1116)
    com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3102)
    com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2991)
    com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3532)
    com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2002)
    com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2163)
    com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2624)
    com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:2127)
    com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2427)
    com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2345)
    com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2330)
    org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.executeUpdate(ResultSetReturnImpl.java:133)
    org.hibernate.id.IdentityGenerator$GetGeneratedKeysDelegate.executeAndExtract(IdentityGenerator.java:96)
    org.hibernate.id.insert.AbstractReturningDelegate.performInsert(AbstractReturningDelegate.java:58)
    org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2975)
    org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:3487)
    org.hibernate.action.internal.EntityIdentityInsertAction.execute(EntityIdentityInsertAction.java:81)
    org.hibernate.engine.spi.ActionQueue.execute(ActionQueue.java:377)
    org.hibernate.engine.spi.ActionQueue.addResolvedEntityInsertAction(ActionQueue.java:214)
    org.hibernate.engine.spi.ActionQueue.addInsertAction(ActionQueue.java:194)
    org.hibernate.engine.spi.ActionQueue.addAction(ActionQueue.java:178)
    org.hibernate.event.internal.AbstractSaveEventListener.addInsertAction(AbstractSaveEventListener.java:321)
    org.hibernate.event.internal.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:286)
    org.hibernate.event.internal.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:192)
    org.hibernate.event.internal.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:125)
    org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:206)
    org.hibernate.event.internal.DefaultSaveEventListener.saveWithGeneratedOrRequestedId(DefaultSaveEventListener.java:55)
    org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:191)
    org.hibernate.event.internal.DefaultSaveEventListener.performSaveOrUpdate(DefaultSaveEventListener.java:49)
    org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:90)
    org.hibernate.internal.SessionImpl.fireSave(SessionImpl.java:764)
    org.hibernate.internal.SessionImpl.save(SessionImpl.java:756)
    org.hibernate.internal.SessionImpl.save(SessionImpl.java:752)
    com.SurveyWithoutVendor.Dao.UserSurveyDetailsDao.saveuser(UserSurveyDetailsDao.java:14)
    org.apache.jsp.TOS0913_005f147592.Complete_jsp._jspService(Complete_jsp.java:115)
    org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
    org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:432)
    org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
    org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
root cause

java.io.EOFException: Can not read response from server. Expected to read 4 bytes, read 0 bytes before connection was unexpectedly lost.
    com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:2552)
    com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3002)
    com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2991)
    com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3532)
    com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2002)
    com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2163)
    com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2624)
    com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:2127)
    com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2427)
    com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2345)
    com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2330)
    org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.executeUpdate(ResultSetReturnImpl.java:133)
    org.hibernate.id.IdentityGenerator$GetGeneratedKeysDelegate.executeAndExtract(IdentityGenerator.java:96)
    org.hibernate.id.insert.AbstractReturningDelegate.performInsert(AbstractReturningDelegate.java:58)
    org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2975)
    org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:3487)
    org.hibernate.action.internal.EntityIdentityInsertAction.execute(EntityIdentityInsertAction.java:81)
    org.hibernate.engine.spi.ActionQueue.execute(ActionQueue.java:377)
    org.hibernate.engine.spi.ActionQueue.addResolvedEntityInsertAction(ActionQueue.java:214)
    org.hibernate.engine.spi.ActionQueue.addInsertAction(ActionQueue.java:194)
    org.hibernate.engine.spi.ActionQueue.addAction(ActionQueue.java:178)
    org.hibernate.event.internal.AbstractSaveEventListener.addInsertAction(AbstractSaveEventListener.java:321)
    org.hibernate.event.internal.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:286)
    org.hibernate.event.internal.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:192)
    org.hibernate.event.internal.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:125)
    org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:206)
    org.hibernate.event.internal.DefaultSaveEventListener.saveWithGeneratedOrRequestedId(DefaultSaveEventListener.java:55)
    org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:191)
    org.hibernate.event.internal.DefaultSaveEventListener.performSaveOrUpdate(DefaultSaveEventListener.java:49)
    org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:90)
    org.hibernate.internal.SessionImpl.fireSave(SessionImpl.java:764)
    org.hibernate.internal.SessionImpl.save(SessionImpl.java:756)
    org.hibernate.internal.SessionImpl.save(SessionImpl.java:752)
    com.SurveyWithoutVendor.Dao.UserSurveyDetailsDao.saveuser(UserSurveyDetailsDao.java:14)
    org.apache.jsp.TOS0913_005f147592.Complete_jsp._jspService(Complete_jsp.java:115)
    org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
    org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:432)
    org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
    org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
note The full stack trace of the root cause is available in the Apache Tomcat/7.0.39 logs.

这个错误很少发生。如果我再次刷新页面，我没有发现任何错误。

score 0 · Accepted Answer

您的应用程序服务器和数据库服务器之间似乎存在连接问题（应用程序服务器无法访问您的数据库服务器）：

Can not read response from server. Expected to read 4 bytes, read 0 bytes before connection was unexpectedly lost.

或者

Communications link failure. 

The last packet successfully received from the server was 430,396 milliseconds ago.  The last packet sent successfully to the server was 0 milliseconds ago.

查看这篇文章以获取有关如何解决此问题的更多信息。

score 0 · Accepted Answer

此错误只能通过修复 Web 服务器软件来解决。这不是客户端问题。由 Web 服务器站点的操作员来定位和分析应该提供有关错误的更多信息的日志。或者不要把src文件夹放在WEB-INF目录下！！

java - HTTP 状态 500 - 处理 JSP 页面时发生异常（休眠）

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