Laravel给生产环境添加监听事件(SQL日志监听)
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laravel版本:5.2.*
一、创建监听器
php artisan make:listener QueryListener --event=Illuminate\\Database\\Events\\QueryExecuted
or
sudo /usr/local/bin/php artisan make:listener QueryListener --event=Illuminate\\Database\\Events\\QueryExecuted
会自动生成文件 app/Listeners/QueryListener.php
二、注册事件
打开 app/Providers/EventServiceProvider.php,在 $listen 中添加 Illuminate\Database\Events\QueryExecuted 事件的监听器为 QueryListener
protected $listen = [
'Illuminate\Database\Events\QueryExecuted' => [
'App\Listeners\QueryListener',
],
];
最终代码如下
namespace App\Providers;
use Illuminate\Contracts\Events\Dispatcher as DispatcherContract;
use Illuminate\Foundation\Support\Providers\EventServiceProvider as ServiceProvider;
class EventServiceProvider extends ServiceProvider
{
/**
* The event listener mappings for the application.
*
* @var array
*/
protected $listen = [
'App\Events\SomeEvent' => [
'App\Listeners\EventListener',
],
'Illuminate\Database\Events\QueryExecuted' => [
'App\Listeners\QueryListener',
],
];
/**
* Register any other events for your application.
*
* @param \Illuminate\Contracts\Events\Dispatcher $events
* @return void
*/
public function boot(DispatcherContract $events)
{
parent::boot($events);
//
}
}
三、添加逻辑
打开 app/Listeners/QueryListener.php
光有一个空的监听器是不够的,我们需要自己实现如何把 $sql 记录到日志中。为此,对 QueryListener 进行改造,完善其 handle 方法如下:
$sql = str_replace("?", "'%s'", $event->sql);
$log = vsprintf($sql, $event->bindings);
Log::info($log);
最终代码如下
namespace App\Listeners;
use Log;
use Illuminate\Database\Events\QueryExecuted;
use Illuminate\Queue\InteractsWithQueue;
use Illuminate\Contracts\Queue\ShouldQueue;
class QueryListener
{
/**
* Create the event listener.
*
* @return void
*/
public function __construct()
{
//
}
/**
* Handle the event.
*
* @param QueryExecuted $event
* @return void
*/
public function handle(QueryExecuted $event)
{
$sql = str_replace("?", "'%s'", $event->sql);
$log = vsprintf($sql, $event->bindings);
Log::info($log);
}
}
总结
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