springMVC的controller中获取request，response对象的两个方法

   @GetMapping("outLogin") 
    public String outLogin(){
        
        ServletRequestAttributes attributes=(ServletRequestAttributes)RequestContextHolder.getRequestAttributes();

        HttpServletRequest request = attributes.getRequest();
        
        HttpServletResponse response = attributes.getResponse();
        
        CookieUtils.deleteCookie(request , response ,"token");
        
        return "已退出系统";
    }

    @GetMapping("/login")
    public String LoginUser(User user, HttpServletRequest request , HttpServletResponse response){
        if(user.getUsername().equals("admin") && user.getPassword().equals("123")){
            CookieUtils.setCookie(request , response , "token" ,"456456456",60*60,"utf-8");
            return "登录成功";
        }
        return "登录失败";
    }

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