学步园

java.lang.reflect.InvocationTargetException<br /> sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)<br /> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)<br /> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)<br /> java.lang.reflect.Method.invoke(Method.java:597)<br /> com.opensymphony.xwork2.DefaultActionInvocation.invokeAction(DefaultActionInvocation.java:452)<br /> com.opensymphony.xwork2.DefaultActionInvocation.invokeActionOnly(DefaultActionInvocation.java:291)<br /> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:254)<br /> com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:176)<br /> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)<br /> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)<br /> com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:263)<br /> org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:68)<br /> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)<br /> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)<br /> com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.intercept(ConversionErrorInterceptor.java:133)<br /> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)<br /> com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:207)<br /> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)<br /> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)<br /> com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:207)<br /> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)<br /> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)<br /> com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersInterceptor.java:190)<br /> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)<br /> org.apache.struts2.interceptor.MultiselectInterceptor.intercept(MultiselectInterceptor.java:75)<br /> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)<br /> org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:94)<br /> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)<br /> org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:243)<br /> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)<br /> com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:100)<br /> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)<br /> com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor.intercept(ScopedModelDrivenInterceptor.java:141)<br /> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)<br /> org.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(DebuggingInterceptor.java:267)<br /> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)<br /> com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingInterceptor.java:142)<br /> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)<br /> com.opensymphony.xwork2.interceptor.PrepareInterceptor.doIntercept(PrepareInterceptor.java:166)<br /> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)<br /> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)<br /> com.opensymphony.xwork2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:176)<br /> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)<br /> org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(ServletConfigInterceptor.java:164)<br /> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)<br /> com.opensymphony.xwork2.interceptor.AliasInterceptor.intercept(AliasInterceptor.java:190)<br /> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)<br /> com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:187)<br /> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)<br /> org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:52)<br /> org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:485)<br /> org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:77)<br /> org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:91)</p> <p>

运行时，能够接收到前台的数据，但是获取session时就报以上错误。

action：

@Override<br /> public String execute() throws Exception {<br /> System.out.println(user.getName());<br /> UserService us = new UserService();<br /> us.add(user);<br /> return SUCCESS;<br /> }

UserService：

public boolean add(User u){<br /> Session session = HibernateUtil.getSessionFactory().getCurrentSession();<br /> return true;<br /> }

若是将session那一行代码去掉，直接返回true，没有问题，加上就报上边那个错误，求解。