本文主要给大家介绍的是关于Laravel给生产环境添加监听事件(SQL日志监听)的相关内容,分享出来供大家参考学习,下面来一起看看详细的介绍:
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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