HttpSession < session　＝　ServletActionContext.getRequest().getSession();         例：         public String findAll(){      HttpSession session = ServletActionContext.getRequest().getSession();         list = userService.find();      session.setAttribute("list", list);         return this.SUCCESS;     }         在jsp中如何得到session中的属性呢：         如下：          s:iterator value="#session.list" id="user"             s:property value="user.userid"             s:property value="user.firstname"             s:property value="user.lastname"          s:iterator