java - HTTP ステータス 500 - JSP ページの処理中に例外が発生しました (Hibernate)

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.

このエラーはめったに発生しません。ページを再度更新しても、エラーは見つかりません。

score 0 · Accepted Answer

このエラーは、Web サーバーソフトウェアを修正することによってのみ解決できます。これはクライアント側の問題ではありません。エラーに関する詳細情報を提供するログを見つけて分析するのは、Web サーバーサイトのオペレータ次第です。または src フォルダを WEB-INF ディレクトリに置かないでください!!

score 0 · Accepted Answer

アプリケーションサーバーとデータベースサーバーの間に接続の問題があるようです (アプリケーションサーバーがデータベースサーバーに到達できません)。

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

また

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.

この問題を解決する方法の詳細については、この投稿をご覧ください。

java - HTTP ステータス 500 - JSP ページの処理中に例外が発生しました (Hibernate)

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