@RestController
@RequestMapping("/user")
@Api(tags = "user", description = "用戶控制器")
public class UserController {
    // ...
}

    @GetMapping("/getDetail/{id}")
    @ApiOperation(value = "根據(jù)id獲取用戶")
    public RbacUser getDetail(@PathVariable Long id) {
        return userService.getById(id);
    }

    @GetMapping("/getByAccount")
    @ApiOperation(value = "根據(jù)賬號(hào)獲取用戶")
    public RbacUser getByAccount(@RequestParam(required = false) String account) {
        return userService.getByAccount(account);
    }

    @GetMapping("/find")
    @ApiOperation(value = "根據(jù)條件獲取用戶")
    public List<RbacUser> find(RbacUserDTO rbacUserDTO) {
        return userService.find(rbacUserDTO);
    }

    @DeleteMapping("/delete/{id}")
    @ApiOperation(value = "刪除用戶")
    public void delete(@PathVariable Long id) {
        userService.delete(id);
    }

    @PostMapping("/create")
    @ApiOperation(value = "創(chuàng)建用戶")
    public RbacUser getByAccount(@RequestBody @Validated RbacUserDTO rbacUserDTO) {
        return userService.save(rbacUserDTO);
    }

public class StudentBean implements Serializable{
    @NotBlank(message = "用戶名不能為空")
    private String name;
    @Min(value = 18, message = "年齡不能小于18歲")
    private Integer age;
    @Pattern(regexp = "^((13[0-9])|(14[5,7,9])|(15([0-3]|[5-9]))|(166)|(17[0,1,3,5,6,7,8])|(18[0-9])|(19[8|9]))\\d{8}$", message = "手機(jī)號(hào)格式錯(cuò)誤")
    private String phoneNum;
    @Email(message = "郵箱格式錯(cuò)誤")
    private String email;
 
    public String getName() {
        return name;
    }
 
    public void setName(String name) {
        this.name = name;
    }
 
    public Integer getAge() {
        return age;
    }
 
    public void setAge(Integer age) {
        this.age = age;
    }
 
    public String getPhoneNum() {
        return phoneNum;
    }
 
    public void setPhoneNum(String phoneNum) {
        this.phoneNum = phoneNum;
    }
 
    public String getEmail() {
        return email;
    }
 
    public void setEmail(String email) {
        this.email = email;
    }
}

public class ArgumentsInvalidResponseBean {
    private String argumentName;
    private String exceptionMsg;
 
    public ArgumentsInvalidResponseBean() {
    }
 
    public ArgumentsInvalidResponseBean(String argumentName, String exceptionMsg) {
        this.argumentName = argumentName;
        this.exceptionMsg = exceptionMsg;
    }
 
    public String getArgumentName() {
        return argumentName;
    }
    public void setArgumentName(String argumentName) {
        this.argumentName = argumentName;
    }
 
    public String getExceptionMsg() {
        return exceptionMsg;
    }
    public void setExceptionMsg(String exceptionMsg) {
        this.exceptionMsg = exceptionMsg;
    }
}

    @ExceptionHandler(MethodArgumentNotValidException.class)
    @ResponseBody
    public List<ArgumentsInvalidResponseBean> methodArgumentNotValidExceptionHandler(MethodArgumentNotValidException ex){
        System.out.println("===================methodArgumentNotValidExceptionHandler Occur============");
 
        List<ArgumentsInvalidResponseBean> argumentsInvalidResponseBeanList = new ArrayList<>();
        for (FieldError error : ex.getBindingResult().getFieldErrors()){
            ArgumentsInvalidResponseBean bean = new ArgumentsInvalidResponseBean();
            bean.setArgumentName(error.getField());
            bean.setExceptionMsg(error.getDefaultMessage());
 
            argumentsInvalidResponseBeanList.add(bean);
        }
        return argumentsInvalidResponseBeanList;
    }

@RestController
public class CheckController {
    @PostMapping("stu")
    public String addStu(@Valid @RequestBody StudentBean studentBean){
        return "add student success";
    }
}

@Target({ElementType.METHOD, ElementType.FIELD})
@Retention(RetentionPolicy.RUNTIME)
@Constraint(validatedBy = MyConstraintValidator.class)
public @interface MyConstraint {
    String message() default "這是一個(gè)自定義注解，檢測(cè)輸入是否大寫";
    Class<?>[] groups() default {};
 
    Class<? extends Payload>[] payload() default {};
}

public class MyConstraintValidator implements ConstraintValidator<MyConstraint, String> {
    @Override
    public void initialize(MyConstraint constraintAnnotation) {
        System.out.println("+++++++++++++myConstraint init");
    }
 
    @Override
    public boolean isValid(String o, ConstraintValidatorContext constraintValidatorContext) {
        if (!o.equals(o.toUpperCase())){
            System.out.println("輸入信息必須是大寫");
            return false;
        }
        return true;
    }
}

  @MyConstraint
  private String className;