idea写springboot项目报错：Ambiguous mapping. Cannot map ‘xxxController‘ method

错误信息：Ambiguous mapping. Cannot map ‘xxxController’ method
错误解释：这个报错是说你的xxxController中有有歧义，模糊不清，基本就是说有重复的RequestMapping了，这时检查下controller层的代码看看是否有重复的RequestMapping注解

错误解决：我当时的错误原因是UserController中写了两个：@PostMapping("/add")，修改一个即可。