Analysis of Laravel5.5 event monitoring, task scheduling, and queue-Laravel-php.cn

Process:

1.1 Create event

php artisan make:event UserLogin

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Analysis of Laravel5.5 event monitoring, task scheduling, and queue

LoginController.php

/** * The user has been authenticated. * * @param \Illuminate\Http\Request $request * @param mixed $user * @return mixed */ protected function authenticated(Request $request, $user) { event(new UserLogin($user)); }

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1.2 Create listener1.2.1 Method 1: Manually create

php artisan make:listener EmailAdminUserLogin --event=UserLogin

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1.2.2 Method 2:

Recommend the following method:

Automatically generate events and listeners

//应用程序的事件监听器映射 class EventServiceProvider extends ServiceProvider { /** * The event listener mappings for the application. * * @var array */ protected $listen = [ 'App\Events\UserLogin' => [ 'App\Listeners\UserLogin\EmailAdminUserLogin', 'App\Listeners\UserLogin\TraceUser', 'App\Listeners\UserLogin\AddUserLoginCounter', ], 'App\Events\UserLogout' => [ 'App\Listeners\UserLogout\EmailAdminUserLogout', 'App\Listeners\UserLogout\TraceUser', ], ]; /** * Register any events for your application. * * @return void */ public function boot() { parent::boot(); Event::listen('event.*', function ($eventName, array $data) { // }); } }

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Generate events & listeners:

php artisan event:generate

2. Laravel’s task scheduling (planned task) function Task Scheduling2.1 call method

protected function schedule(Schedule $schedule) { $schedule->call(function (){ \Log::info('我是call方法实现的定时任务'); })->everyMinute(); }

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Execution:

php artisan schedule:run

2.2 crontab method

2.2 command method

Analysis of Laravel5.5 event monitoring, task scheduling, and queue

Generate command:

php artisan make:command SayHello

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Kernel.php

protected function schedule(Schedule $schedule) { $schedule->command('message:hi') ->everyMinute(); }

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Execution:
php artisan schedule:run
3. Queue tasks3.1 Necessary driver settings

QUEUE_DRIVER=database

For example: database driver

php artisan queue:table php artisan migrate

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3.2 Create task
Generate task class:

php artisan make:job SendReminderEmail

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class SendReminderEmail implements ShouldQueue { use Dispatchable, InteractsWithQueue, Queueable, SerializesModels; public $user; /** * Create a new job instance. * * @param User $user */ public function __construct(User $user) { $this->user = $user; } /** * Execute the job. * * @return void */ public function handle() { \Log::info('send reminder email to user' . $this->user->email); } }

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3.3 Distribute taskAfter you write the task class, you can distribute it through the
dispatch
auxiliary function. The only parameter that needs to be passed to
dispatch
is an instance of this task class:Use the model factory to generate 30 users:

public function store(Request $request) { $users = User::where('id','>',24)->get(); foreach ($users as $user){ $this->dispatch(new SendReminderEmail($user)); } return 'Done'; }

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Route::get('/job', 'UserController@store');

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Database tablejobs
Generate 5 queue tasks:
##3.4 Run queue processor

php artisan queue:work

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Tips:
Be aware that once the
queue:work
command starts, it will run until you manually stop it or you close the console
Processing a single Task:You can use the--once
option to specify that only a single task in the queue will be processed

php artisan queue:work --once

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Extension:
UseBeanstalkd
to manage the queue,
Supervisoris used to monitor the tasks in the queue, and automatically help us execute them if there are tasks in the queue, eliminating the need to manually typephp artisancommand to ensure that your queue can be executed correctly《Related recommendations:The latest five Laravel video tutorials》