Action中request.setAttribute()方法提交的参数在JSP中无法获得

Question

Action中request.setAttribute()方法提交的参数在JSP中request.getAttribute()无法获得
但用session.setAttribute()可以session.getAttribute()获得（返回与当前request关联的HttpSession  数据保持不变除非重新启动网页）

Answer 1

<action path="/uesr_add"
   name="user_form"
   type="com.wang.Action.User_Action"
   scope="session"//改成request
   parameter="add">
<forward name="succeed" path="/uesr_list.do?list=list"></forward>
   </action>

Answer 2

如果没写scope属性,他默认是session传值

Answer 3

<action
      attribute="floginForm"
      input="/flex/flogin.jsp"
      name="floginForm"
      path="/flogin"
      scope="request"
      type="com.mao.struts.action.FloginAction" >
      <forward
        name="flogin"
        path="/flex/flogin.jsp"
        redirect="true" />
    </action>
我每个action 都是scope="request"   是不是我的<forward  name="flogin" path="/flex/flogin.jsp"  redirect="true" />  不是像你那样带参数<forward name="succeed" [color=#000000]path="/uesr_list.do?list=list"></[/color]forward>  相当跳另一个页面了

Answer 4

public ActionForward findreponse(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response) {
ReponseForm reponseForm = (ReponseForm) form;// TODO Auto-generated method stub
try{
postB post=new postB();

    post.findPostById(request.getParameter("postid"));
reponseB reponse=new reponseB();

//HttpSession session=request.getSession(true);
//session.setAttribute("reponses", reponse.findreponse(request.getParameter("postid")));     
request.setAttribute("reponses", reponse.findreponse(request.getParameter("postid")));     
 
RequestDispatcher requestDispatcher=request.getRequestDispatcher("/flex/freponse.jsp"); 
    requestDispatcher.forward(request,response); 
return null;
//return mapping.findForward("freponse");
  }catch(Exception e)
   {
e.printStackTrace();
return mapping.findForward("fail");
   }
}
这样用request 是可以接收到的  但每次在请uesr_list.do?list=list（当数据发生变化是）得到以前的是去 ，除非换个页面请求。