表單驗證

    @Min(value = 18, message = " 不得小於18 ")
    private Integer age;

   /*
    * 表單驗證
    * */
    @PostMapping(value = "/girlAdd")
    public Girl girlAdd(@Valid Girl girl, BindingResult bindingResult){
        if(bindingResult.hasErrors()){
            System.out.println(bindingResult.getFieldError().getDefaultMessage());
            return null;
        }

        girl.setAge(girl.getAge());
        girl.setCupSize(girl.getCupSize());

        return girlRepository.save(girl);
    }