Struts2中獲取srequest和response的兩種方法

第一種：
ActionContext ct=ActionContext.getContext();
HttpServletResponse response = (HttpServletResponse)ct.get(ServletActionContext.HTTP_RESPONSE);
HttpServletRequest request = (HttpServletRequest)ct.get(ServletActionContext.HTTP_REQUEST);
第二種：
HttpServletRequest request = ServletActionContext.getRequest();

HttpServletResponse response = ServletActionContext.getResponse();