继承此类使所有Controller使用HttpServletRequest和HttpServletResponse。

public class BaseController {
    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();

    }
}