@ControllerAdvice

public class MvcExceptionHandler {

​

    @ExceptionHandler(ConstraintViolationException.class)

    public ResponseEntity<List> validationErrorHandler(ConstraintViolationException e){

        List<String> errors = new ArrayList<>(e.getConstraintViolations().size());

​

        e.getConstraintViolations().forEach(constraintViolation -> {

            errors.add(constraintViolation.getPropertyPath() + " : " + constraintViolation.getMessage());

        });

​

        return new ResponseEntity<>(errors, HttpStatus.BAD_REQUEST);

    }

​

    @ExceptionHandler(BindException.class)

    public ResponseEntity<List> handleBindException(BindException ex){

        return new ResponseEntity(ex.getAllErrors(), HttpStatus.BAD_REQUEST);

    }

}

​