SpringMVC-接收和响应json数据处理讲解

    @PostMapping("login")
    public @ResponseBody User login(String username, String password){
        System.out.println("登录方法进来了...");
        System.out.println(username + "..." +password);
        User user = userService.findById(666);
        System.out.println(user);
        return user;
    }