验证接口重复提交

        //  校验重复提交 3秒种内只提交一次
        if (self::verifyRepeatSubmit($unionInfo->id, 3)) {
            return Utils::error('提交频繁,请稍后再试');
        }

  // 校验重复提交
    private static function verifyRepeatSubmit($uid, $sec = 1)
    {
        $key   = 'union:withdraw:uid:' . $uid;
        $redis = Utils::getRedis();
        if ($redis->get($key)) {
            return true;
        }
        $redis->setnx($key, 1);
        $redis->expire($key, $sec);
        return false;
    }