各位高手大家好!帮小妹解决一个的奇怪问题!

Question

我在myeclipse用hibernate和struts开发网站,在别人的机器上可以调试通过,能够写入数据库,但在我这上却不能,错误码如下:
java.lang.NullPointerException
at com.gjs.hibernate.dao.impl.PartymemberDaoImpl.save(PartymemberDaoImpl.java:25)
at com.gjs.service.impl.PartymemberServiceImpl.savePartymember(PartymemberServiceImpl.java:13)
at com.gjs.struts.action.PartymemberAction.add(PartymemberAction.java:57)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.apache.struts.actions.DispatchAction.dispatchMethod(DispatchAction.java:280)
at org.apache.struts.actions.DispatchAction.execute(DispatchAction.java:216)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:484)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:525)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:763)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:284)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:204)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:257)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:151)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:567)
at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:245)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:199)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:151)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:567)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:184)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:151)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:164)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:149)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:567)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:156)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:151)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:567)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:972)
at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:206)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:833)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:732)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:619)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:688)
at java.lang.Thread.run(Unknown Source)
请各位好心人帮帮小妹

Answer 1

at com.gjs.struts.action.PartymemberAction.add(PartymemberAction.java:57)在做处理前进行判断

Answer 2

PartymemberAction.add(
贴出来看看呢

Answer 3

java.lang.NullPointerException
at com.gjs.hibernate.dao.impl.PartymemberDaoImpl.save(PartymemberDaoImpl.java:25)
at com.gjs.service.impl.PartymemberServiceImpl.savePartymember(PartymemberServiceImpl.java:13)
at com.gjs.struts.action.PartymemberAction.add(PartymemberAction.java:57)空指针错误 什么东西没有加载正确
PartymemberDaoImpl.java的25行 save方法
PartymemberServiceImpl.java的13行savePartymember方法（应该没他什么事 这个类就是一个接口吧）
还有调用SAVE方法的PartymemberAction.java个人认为主要是PartymemberDaoImpl.java的25行 save方法
可能是它调用的 session 问题
你检查下你的数据库配置  还有数据库 怎么都是Unknown Source
在PartymemberDaoImpl.java的save方法 
捕捉下异常
try {
Session session = HibernateSessionFactory.getSession();
Transaction tx = session.beginTransaction();
session.save(*****);
tx.commit();
} catch (HibernateException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
试下吧 
 有问题给我留言  我是色狼哦最喜欢小妹了HOHO