获取Servlet对象

		//模拟HttpSession
		Map<String,Object> session=ActionContext.getContext().getSession();
		//模拟Application
		Map<String,Object> application=ActionContext.getContext().getApplication();
		//取得HttpServletRequest
		HttpServletRequest request=ServletActionContext.getRequest();
		//取得HttpServletResponse
		HttpServletResponse response=ServletActionContext.getResponse();
		//取得PageContext
		PageContext pageContext=ServletActionContext.getPageContext();