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null id in org.hibernate.User entry (don't flush the Session after an exception occurs)? СµÜ×ö¸öϵͳ£¬ÔڵǽºÍ×¢²áÐÂÓû§Ê±£¬µÇ½¼¸´Îºó¾Í²úÉúÒÔÏ´íÎó type Exception report message description The server encountered an internal error () that prevented it from fulfilling this request. exception javax.servlet.ServletException: null id in org.hibernate.User entry (don't flush the Session after an exception occurs)  org.apache.struts.action.RequestProcessor.processException(RequestProcessor.java:545)  org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:486)  org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274)  org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)  org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:525)  javax.servlet.http.HttpServlet.service(HttpServlet.java:709)  javax.servlet.http.HttpServlet.service(HttpServlet.java:802) root cause org.hibernate.AssertionFailure: null id in org.hibernate.User entry (don't flush the Session after an exception occurs)  org.hibernate.event.def.DefaultFlushEntityEventListener.checkId(DefaultFlushEntityEventListener.java:48)  org.hibernate.event.def.DefaultFlushEntityEventListener.getValues(DefaultFlushEntityEventListener.java:150)  org.hibernate.event.def.DefaultFlushEntityEventListener.onFlushEntity(DefaultFlushEntityEventListener.java:106)  org.hibernate.event.def.AbstractFlushingEventListener.flushEntities(AbstractFlushingEventListener.java:195)  org.hibernate.event.def.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:76)  org.hibernate.event.def.DefaultAutoFlushEventListener.onAutoFlush(DefaultAutoFlushEventListener.java:35)  org.hibernate.impl.SessionImpl.autoFlushIfRequired(SessionImpl.java:954)  org.hibernate.impl.SessionImpl.list(SessionImpl.java:1099)  org.hibernate.impl.QueryImpl.list(QueryImpl.java:79)  org.hibernate.impl.AbstractQueryImpl.uniqueResult(AbstractQueryImpl.java:749)  org.hibernate.UserDAO.getUserByName(UserDAO.java:110)  com.yourcompany.struts.action.LoginAction.execute(LoginAction.java:49)  org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:484)  org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274)  org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)  org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:525)  javax.servlet.http.HttpServlet.service(HttpServlet.java:709)  javax.servlet.http.HttpServlet.service(HttpServlet.java:802) note The full stack trace of the root cause is available in the Apache Tomcat/5.5.20 logs.    Êղؠ  ·ÖÏí   ¶¥(0)