关于分发事务

javax.servlet.ServletException: org.springframework.orm.hibernate3.HibernateTransactionManager.determineTimeout(Lorg/springframework/transaction/TransactionDefinition;)I
org.apache.struts.actions.DispatchAction.dispatchMethod(DispatchAction.java:294)
org.apache.struts.actions.DispatchAction.execute(DispatchAction.java:187)
org.springframework.web.struts.DelegatingActionProxy.execute(DelegatingActionProxy.java:110)
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:689)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)


root cause

java.lang.NoSuchMethodError: org.springframework.orm.hibernate3.HibernateTransactionManager.determineTimeout(Lorg/springframework/transaction/TransactionDefinition;)I
org.springframework.orm.hibernate3.HibernateTransactionManager.doBegin(HibernateTransactionManager.java:492)
org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:283)
org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:226)
org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:89)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:170)
org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:176)
$Proxy3.getAssistant(Unknown Source)
com.pp.aoos.struts.action.ServiceAction.getAss(ServiceAction.java:39)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
java.lang.reflect.Method.invoke(Method.java:597)
org.apache.struts.actions.DispatchAction.dispatchMethod(DispatchAction.java:270)
org.apache.struts.actions.DispatchAction.execute(DispatchAction.java:187)
org.springframework.web.struts.DelegatingActionProxy.execute(DelegatingActionProxy.java:110)
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:689)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)

先介绍下我项目的结构
有持久层 业务层 和 表现层
用的是ssh框架
奇怪的是 我在action类里用持久层DAO对象进行操作就不会出错
代码如下：
java.util.List<Assistant> list = this.getAssistantDAO().findAll();
request.setAttribute("ass", list);
// TODO Auto-generated method stub
return mapping.findForward("showAss");
但是在action类里用业务层对象进行操作就会出现上述错误
代码如下：
java.util.List<Assistant> list = this.getAssistantService().getAssistant();
request.setAttribute("ass", list);
// TODO Auto-generated method stub
return mapping.findForward("showAss");

很神奇。。