springMVC获取request和response
1:在BaseController中加入：
protected HttpServletRequest request;
protected HttpServletResponse response;
protected HttpSession session;
@ModelAttribute
public void setReqAndRes(HttpServletRequest request, HttpServletResponse response){
this.request = request;
this.response = response;
this.session = request.getSession();
}
说明：ModelAttribute的作用
2:也可以直接在方法参数上声明：
public String hello(HttpServletRequest request,HttpServletResponse response)
Struts2获取request和response
1：实现org.apache.struts2.interceptor.ServletResponseAware接口
2：HttpServletResponse response = (HttpServletResponse)
ActionContext.getContext().get(org.apache.struts2.StrutsStatics.HTTP_RESPONSE);
HttpServletRequest request = (HttpServletRequest)
ActionContext.getContext().get(org.apache.struts2.StrutsStatics.HTTP_REQUEST);
3：HttpServletResponse response = ServletActionContext.getResponse()
