ava.sql.SQLException: 违反协议
我现在的项目是用的jdk1.4+eclipse3.2+myeclipse5.0+tomcat5.0+oracle9i

  struts+hibernate2   做的，我试着把数据库驱动换成了oracle8i   还是这个错误，感觉是配置问题，因为在项目的别的模块的一样的操作都能用，怀疑是不是hibernate2与hibernate3不兼容？但是别的地方怎么能用了？


在保存信息的时候   出现下面的   错误


ava.sql.SQLException:   违反协议
at   oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:134)
at   oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:179)
at   oracle.jdbc.dbaccess.DBError.check_error(DBError.java:1160)
at   oracle.jdbc.ttc7.Ocommoncall.receive(Ocommoncall.java:149)
at   oracle.jdbc.ttc7.TTC7Protocol.rollback(TTC7Protocol.java:487)
at   oracle.jdbc.driver.OracleConnection.rollback(OracleConnection.java:1376)
at   com.mchange.v2.c3p0.impl.C3P0PooledConnection.reset(C3P0PooledConnection.java:251)
at   com.mchange.v2.c3p0.impl.C3P0PooledConnection.access$000(C3P0PooledConnection.java:35)
at   com.mchange.v2.c3p0.impl.C3P0PooledConnection$ProxyConnectionInvocationHandler.doSilentClose(C3P0PooledConnection.java:531)
at   com.mchange.v2.c3p0.impl.C3P0PooledConnection$ProxyConnectionInvocationHandler.invoke(C3P0PooledConnection.java:636)
at   com.mchange.v2.c3p0.impl.$Proxy0.close(Unknown   Source)
at   net.sf.hibernate.connection.C3P0ConnectionProvider.closeConnection(C3P0ConnectionProvider.java:48)
at   net.sf.hibernate.impl.BatcherImpl.closeConnection(BatcherImpl.java:275)
at   net.sf.hibernate.impl.SessionImpl.disconnect(SessionImpl.java:3285)
at   net.sf.hibernate.impl.SessionImpl.close(SessionImpl.java:497)
at   gmit.gsf.tool.hibernate.PersistentTool.search(PersistentTool.java:586)
at   gmit.gsf.arch.BaseBO._search(BaseBO.java:81)
at   gmit.gsf.arch.BaseSI._search(BaseSI.java:39)
at   gmit.jzt.orguser.action.OrgRoleManageSI_updateAction.searchOrgAgent(OrgRoleManageSI_updateAction.java:138)
at   gmit.jzt.orguser.action.OrgRoleManageSI_updateAction.execute(OrgRoleManageSI_updateAction.java:86)
at   org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:509)
at   org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:277)
at   org.apache.struts.action.ActionServlet.process(ActionServlet.java:1490)
at   org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:530)
at   javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
at   javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at   org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at   org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at   org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:214)
at   org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at   org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at   org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:198)
at   org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:152)
at   org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at   org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at   org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:137)
at   org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at   org.apache.catalina.valves.ErrorReportValve.invoke(ErrorRep