struts2 session 解读

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