Question

我的侦听器被调用了两次，但事件仅被触发一次。

我从Lumen 5.7示例中获取了代码，不知道我的错误在哪里。

bootstrap / app.php

$app->register(App\Providers\EventServiceProvider::class);

app / Providers / EventServiceProvider.php

protected $listen = [
    'App\Events\NewAuthEvent' => [
        'App\Listeners\SendNewAuthListener',
    ],
];

app / Events / NewAuthEvent.php

use Illuminate\Queue\SerializesModels;
use App\Data\Entity\User;
use App\Data\Entity\Authorization;
use Illuminate\Support\Facades\Log;

class NewAuthEvent
{
    use SerializesModels;

    public $user;

    public $auth;

    public function __construct(User $user, Authorization $auth)
    {
        Log::debug("once :)");
        $this->user = $user;
        $this->auth = $auth;
    }
}

app / Listeners / SendNewAuthListener.php

use App\Events\NewAuthEvent;
use Illuminate\Queue\InteractsWithQueue;
use Illuminate\Contracts\Queue\ShouldQueue;
use App\Data\Service\MessengerService;
use Illuminate\Support\Facades\Log;

class SendNewAuthListener
{
    private $messenger;

    public function __construct(MessengerService $messenger)
    {
        Log::debug("twice :(");
        $this->messenger = $messenger;
    }

    public function handle(NewAuthEvent $event)
    {
        Log::debug("twice as well :(");
        $this->messenger->new($event->user, $event->auth);
    }
}

触发事件：

event(new NewAuthEvent($objUser, $objAuthorization));

我想念什么？还有其他要设置的参数或配置吗？

谢谢！

Answer 1

我遇到了同样的问题。检查您的 EventsServiceProvider。如果您使用的是返回 true 的 shouldDiscoverEvents 方法，删除它可能会解决您的问题。查看 andnacho here 的评论。

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