:怎么解决:don't flush the Session after an exception occurs的方法
日期：2014-05-20 浏览次数：20783 次
在线等:求救如何解决:don't flush the Session after an exception occurs的方法
更新多条记录出错:Hibernate.在线等....
试图在一个Action中调用多次Hibernate插入数据,
因为插入前一条数据后在后一条插入数据中需要用到前一条的记录.
代码如下:
出错如下:
更新多条记录出错:Hibernate.在线等....
试图在一个Action中调用多次Hibernate插入数据,
因为插入前一条数据后在后一条插入数据中需要用到前一条的记录.
代码如下:
- Java code
public ActionForward regUser(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response)
throws Exception {
UserActionForm uaf = (UserActionForm)form;
//取出从页面提交过来的数据
String name = uaf.getName();
String password = uaf.getPassword();
String password1 = uaf.getPassword1();
String nichen = uaf.getNichen();
String email = uaf.getEmail();
String province = uaf.getProvince();
String sex = request.getParameter("sex");
MD5 md5 = new MD5();
//将页面提交过来的数据设置进User类中
User user = new User();
user.setName(name);
user.setEmail(email);
user.setPassword(md5.getMD5ofStr(password));
user.setNichen(nichen);
user.setSex(sex);
user.setProvince(province);
user.setRegTime(new java.sql.Timestamp(System.currentTimeMillis()));
//调用业务逻辑方法
int flag = 0;
try {
flag = userManager.add_User(user);
}catch(Exception e){
e.printStackTrace();
return mapping.findForward("add_fail");
}
/**
* 默认的方法是开通博客同时是发表一篇开通博客的日志.
*/
Blog blog = new Blog();
blog.setName(name);
blog.setVisited(1);
blog.setGrade(1);
blog.setOnline(true);
blog.setUser(user);
blog.setLastLoginTime(new java.sql.Timestamp(System.currentTimeMillis()));
blog.setMingyuan("OpenSource社区博客中心欢迎你");
blog.setHead(null);
/**
* 发表一篇开通博客的日志...
*/
Daily daily = new Daily();
daily.setTitle("用户"+user.getName()+"开通博客--"+name);
daily.setContent("<font size='4'><p>感谢用户:<font color='white' size='3'>"+user.getName()+"</font>在OpenSource开源社区中心开通博客</p>" +
"<p>若有任何问题及意见,请发邮件到*****@163.com或者致电到:*****或者QQ交谈:******</p>" +
"<p>如果发生问题,我们会尽快帮你解决你所提出的问题,你的意见及问题是我们开源社区前进的动力!</p>"+
"<p>谢谢你的合作!</p></font><p align='right'>开发团队PPP敬上!</p>");
daily.setVisited(0);
daily.setPostTime(new java.sql.Timestamp(System.currentTimeMillis()));
int flag2 = 0;
try {
flag2 = blogManager.add_Blog(blog);
}catch(Exception e){
e.printStackTrace();
return mapping.findForward("add_fail");
}
daily.setBlog(blog);
try {
dailyManager.add_Daily(daily);
}catch(Exception e){
e.printStackTrace();
return mapping.findForward("add_fail");
}
if(flag==1 && flag2==1){
return mapping.findForward("add_success");
}else {
return mapping.findForward("add_fail");
}
}
出错如下:
- Java code
javax.servlet.ServletException: org.hibernate.AssertionFailure: null id in com.hpjianhua.xiehui.model.User entry (don't flush the Session after an exception occurs) org.apache.struts.action.RequestProcessor.processException(RequestProcessor.java:535) org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:433) org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236) org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196) org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414) javax.servlet.http.HttpServlet.service(HttpServlet.java:690) javax.servlet.http.HttpServlet.service(HttpServlet.java:803) org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:174) org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:77) org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:78) org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:77) root cause org.hibernate.AssertionFailure: null id in com.hpjianhua.xiehui.model.User entry (don't flush the Session after an exception occurs) org.hibernate.event.def.DefaultFlushEntityEventListener.checkId(DefaultFlushEntityEventListener.java:55) org.hibernate.event.def.DefaultFlushEntityEventListener.getValues(DefaultFlushEntityEventListener.java:157) org.hibernate.event.def.DefaultFlushEntityEventListener.onFlushEntity(DefaultFlushEntityEventListener.java:113) org.hibernate.event.def.AbstractFlushingEventListener.flushEntities(AbstractFlushingEventListener.java:196) org.hibernate.event.def.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:76) org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:26) org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1000) org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:338) org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:106) org.springframework.orm.hibernate3.HibernateTransactionManager.doCommit(HibernateTransactionManager.java:558) org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit(AbstractPlatformTransactionManager.java:540) org.springframework.transaction.support.AbstractPlatformTransactionManager.commit(AbstractPlatformTransactionManager.java:510) org.springframework.transaction.interceptor.TransactionAspectSupport.commitTransactionAfterReturning(TransactionAspectSupport.java:310) org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:117) org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185) org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:209) $Proxy24.add_User(Unknown Source) com.hpjianhua.xiehui.web.action.UserAction.regUser(UserAction.java:52) sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) java.lang.reflect.Method.invoke(Unknown Source) org.apache.struts.actions.DispatchAction.dispatchMethod(DispatchAction.java:270) org.apache.struts.actions.DispatchAction.execute(DispatchAction.java:187) com.hpjianhua.xiehui.web.action.BaseAction.execute(BaseAction.java:18) org.springframework.web.struts.DelegatingActionProxy.execute(DelegatingActionProxy.java:106) org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431) org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236) org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196) org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414) javax.servlet.http.HttpServlet.service(HttpServlet.java:690) javax.servlet.http.HttpServlet.service(HttpServlet.java:803) org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:174) org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:77) org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:78) org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:77) note The full stack trace of the root cause is available in the Apache Tomcat/6.0.16 logs.
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