Laravel 中的事件系统
执行 php artisan event:generate 会生成事件相关类文件 路径 app/Events/Event.php
所有事件类放在app/Events目录下 所有监听器放在app/Listeners目录下
一个事件可以包含多个监听器
打开 app/Providers/EventServiceProvider.php
php
/**
* The event listener mappings for the application.
*
* @var array
*/
protected $listen = [
'App\Events\SomeEvent' => [
'App\Listeners\EventListener',
],
];项目中的运用
打开 app/Providers/EventServiceProvider.php 更新
php
protected $listen = [
'App\Events\SkuEvents\SkuCreated' => [
'App\Listeners\SkuListeners\RiotVerifySkuCreatedPusher',
],
]执行 php artisan event:generate 命令后就可以得到SkuCreated文件了
app/Events/SkuEvents/SkuCreated.php
php
<?php
namespace App\Events\SkuEvents;
use Illuminate\Broadcasting\InteractsWithSockets;
use Illuminate\Queue\SerializesModels;
use Riot\Sku\Models\Sku;
class SkuCreated
{
use InteractsWithSockets, SerializesModels;
public $sku = null;
/**
* Create a new event instance.
*
* SkuUpdated constructor.
* @param Sku $sku
* @param string $type
*/
public function __construct(Sku $sku, string $type = '')
{
$this->sku = $sku;
}
}我们在Controller中尝试触发事件, 即当往Sku表添加一条新记录时触发SkuCreated事件
Riot/Sku/Controllers/SkuController.php
php
public function store(CreateSkuRequest $request)
{
try {
$input = $request->all();
$sku = $this->repository->create($input);
// 事件触发
event(new SkuCreated($sku));
return $this->sendResponse($sku, 'Sku saved successfully.');
} catch (\Exception $e)
{
return $this->sendError($e->getMessage());
}
}Listener 具体逻辑 主要是同步SKU信息
php
<?php
namespace App\Listeners\SkuListeners;
use App\Events\SkuEvents\SkuCreated;
use Illuminate\Queue\InteractsWithQueue;
use Illuminate\Contracts\Queue\ShouldQueue;
use App\Events\SkuEvents\SkuUpdated as SkuUpdatedEvent;
use Riot\Sku\Jobs\PushCreatedSkuInfo;
class RiotVerifySkuCreatedPusher
{
/**
* Create the event listener.
*
* @return void
*/
public function __construct()
{
//
}
/**
* Handle the event.
*
* @param SkuCreated $event
* @return void
*/
public function handle(SkuCreated $event)
{
$sku = $event->sku;
dd($sku);
}
}当然为了方便，可以在路由中测试
php
Route:get('/', function() {
$sku = \App\Sku::find(1);
event(new \App\Events\SkuEvents\SkuCreated($sku));
});