ActionContext ctx = ActionContext.getContext();

   ctx.getApplication().put("app", "應用范圍");//往ServletContext里放入app

   ctx.getSession().put("ses", "session范圍");//往session里放入ses

   ctx.put("req", "request范圍");//往request里放入req

   return "scope";

}

    ${applicationScope.app} <br>

    ${sessionScope.ses}<br>

    ${requestScope.req}<br>

 </body>

       HttpServletRequest request = ServletActionContext.getRequest();

       ServletContext servletContext = ServletActionContext.getServletContext();

       request.getSession()

       HttpServletResponse response = ServletActionContext.getResponse();

       return "scope";

}

       private HttpServletRequest request;

       private ServletContext servletContext;

       private HttpServletResponse response;

       public void setServletRequest(HttpServletRequest req) {

              this.request=req;

       }

       public void setServletResponse(HttpServletResponse res) {

              this.response=res;

       }

       public void setServletContext(ServletContext ser) {

              this.servletContext=ser;

       }

}