hyperf-micro-svc/app/Exception/Handler/ValidationExceptionHandler.php

<?php

namespace App\Exception\Handler;

use App\Constants\ResultCode;
use App\Exception\ErrException;
use Hyperf\Validation\ValidationException;
use Psr\Container\ContainerExceptionInterface;
use Psr\Container\NotFoundExceptionInterface;
use Psr\Http\Message\ResponseInterface;
use Throwable;

class ValidationExceptionHandler extends BaseErrExceptionHandler
{
    /**
     * @param Throwable $throwable
     * @param ResponseInterface $response
     * @return ResponseInterface
     * @throws ContainerExceptionInterface
     * @throws NotFoundExceptionInterface
     */
    public function handle(Throwable $throwable, ResponseInterface $response): ResponseInterface
    {
        if ($throwable instanceof ValidationException) {
            $throwable = new ErrException($throwable->validator->errors()->first(),ResultCode::ERROR);
            return $this->handlerResponse($throwable,$response);
        }
        return $response;
    }

    /**
     * @param Throwable $throwable
     * @return bool
     */
    public function isValid(Throwable $throwable): bool
    {
        return $throwable instanceof ValidationException;
    }
}