webwork+hibernate的一个异常!!拜求答案

Hibernate: select count(zone0_.id) as x0_0_ from Zone zone0_, Accounts accounts1_ where (accounts1_.code like ? and zone0_.accounts=accounts1_.id) 2004-12-30 01:20:10,390 DEBUG net.sf.hibernate.impl.BatcherImpl – preparing statement 2004-12-30 01:20:10,390 DEBUG net.sf.hibernate.type.StringType – binding “”%0%”” to parameter: 1 2004-12-30 01:20:10,484 DEBUG net.sf.hibernate.util.JDBCExceptionReporter – SQL Exception java.sql.SQLException: Io 异常: Socket closed at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:158) at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:206) at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:382) at oracle.jdbc.driver.T4CPreparedStatement.execute_for_describe(T4CPreparedStatement.java:521) at oracle.jdbc.driver.OracleStatement.execute_maybe_describe(OracleStatement.java:979) at oracle.jdbc.driver.T4CPreparedStatement.execute_maybe_describe(T4CPreparedStatement.java:552) at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1096) at oracle.jdbc.driver.OraclePreparedStatement.executeInternal(OraclePreparedStatement.java:3018) at oracle.jdbc.driver.OraclePreparedStatement.executeQuery(OraclePreparedStatement.java:3059) at org.apache.commons.dbcp.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:92) at net.sf.hibernate.impl.BatcherImpl.getResultSet(BatcherImpl.java:88) at net.sf.hibernate.loader.Loader.getResultSet(Loader.java:875) at net.sf.hibernate.hql.QueryTranslator.iterate(QueryTranslator.java:868) at net.sf.hibernate.impl.SessionImpl.iterate(SessionImpl.java:1618) at net.sf.hibernate.impl.SessionImpl.iterate(SessionImpl.java:1591) at com.sfexpress.server.persistence.hibernate.EntityDAOHibernateImpl.getObjects(EntityDAOHibernateImpl.java:122) at com.sfexpress.server.facade.impl.BaseServiceImpl.getObjects(BaseServiceImpl.java:58) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:296) at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:163) at $Proxy0.getObjects(Unknown Source) at com.sfexpress.xwork.action.ZoneCodeQueryListAction.QueryBase(ZoneCodeQueryListAction.java:247) at com.sfexpress.xwork.action.ZoneCodeQueryListAction.execute(ZoneCodeQueryListAction.java:118) at com.opensymphony.xwork.DefaultActionInvocation.invokeAction(DefaultActionInvocation.java:283) at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:166) at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:35) at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:164) at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:35) at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:164) at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:35) at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:164) at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:35) at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:164) at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:35) at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:164) at com.opensymphony.xwork.DefaultActionProxy.execute(DefaultActionProxy.java:116) at com.opensymphony.webwork.dispatcher.ServletDispatcher.serviceAction(ServletDispatcher.java:272) at com.opensymphony.webwork.dispatcher.ServletDispatcher.service(ServletDispatcher.java:237) at javax.servlet.http.HttpServlet.service(HttpServlet.java:802) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter
	(ApplicationFilterChain.java:237) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:214) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:825) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:731) at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:526) at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684) at java.lang.Thread.run(Thread.java:595) 2004-12-30 01:20:10,500 WARN net.sf.hibernate.util.JDBCExceptionReporter – SQL Error: 17002, SQLState: null 2004-12-30 01:20:10,500 ERROR net.sf.hibernate.util.JDBCExceptionReporter – Io 异常: Socket closed 2004-12-30 01:20:10,500 DEBUG net.sf.hibernate.impl.BatcherImpl – done closing: 0 open PreparedStatements, -1 open ResultSets 2004-12-30 01:20:10,500 DEBUG net.sf.hibernate.impl.BatcherImpl – closing statement 2004-12-30 01:20:10,515 DEBUG net.sf.hibernate.util.JDBCExceptionReporter – Could not execute query java.sql.SQLException: Io 异常: Socket closed at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:158) at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:206) at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:382) at oracle.jdbc.driver.T4CPreparedStatement.execute_for_describe(T4CPreparedStatement.java:521) at oracle.jdbc.driver.OracleStatement.execute_maybe_describe(OracleStatement.java:979) at oracle.jdbc.driver.T4CPreparedStatement.execute_maybe_describe(T4CPreparedStatement.java:552) at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1096) at oracle.jdbc.driver.OraclePreparedStatement.executeInternal(OraclePreparedStatement.java:3018) at oracle.jdbc.driver.OraclePreparedStatement.executeQuery(OraclePreparedStatement.java:3059) at org.apache.commons.dbcp.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:92) at net.sf.hibernate.impl.BatcherImpl.getResultSet(BatcherImpl.java:88) at net.sf.hibernate.loader.Loader.getResultSet(Loader.java:875) at net.sf.hibernate.hql.QueryTranslator.iterate(QueryTranslator.java:868) at net.sf.hibernate.impl.SessionImpl.iterate(SessionImpl.java:1618) at net.sf.hibernate.impl.SessionImpl.iterate(SessionImpl.java:1591) at com.sfexpress.server.persistence.hibernate.EntityDAOHibernateImpl.getObjects(EntityDAOHibernateImpl.java:122) at com.sfexpress.server.facade.impl.BaseServiceImpl.getObjects(BaseServiceImpl.java:58) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	请问这是一个什么错误！原因大概错在哪里呀

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