本教程將爲您提供有關如何在laravel 8中創建cron作業的簡單示例。
步驟1:安裝Laravel 8
在此步驟中，如果您還沒有laravel 8應用程序設置，那麼我們必須獲取最新的laravel 8應用程序。
composer create-project --prefer-dist laravel/laravel blog步驟2:創建命令
在這一步中，我們需要創建我們的自定義命令。自定義命令將與任務調度scron作業一起執行。
php artisan make:command DemoCron --command=demo:cron
現在對命令文件進行一些更改。
app/Console/Commands/DemoCron.php
<?php
namespace App\Console\Commands;
use Illuminate\Console\Command;
class DemoCron extends Command
{
/**
* The name and signature of the console command.
*
* @var string
*/
protected $signature = 'demo:cron';
/**
* The console command description.
*
* @var string
*/
protected $description = 'Command description';
/**
* Create a new command instance.
*
* @return void
*/
public function __construct()
{
parent::__construct();
}
/**
* Execute the console command.
*
* @return mixed
*/
public function handle()
{
\Log::info("Cron is working fine!");
/*
Write your database logic we bellow:
Item::create(['name'=>'hello new']);
*/
}
}步驟3:註冊爲任務調度程序
在此步驟中，需要在Kernel.php文件上定義我們執行時間的命令:
| ->everyMinute(); | Run the task every minute |
| ->everyFiveMinutes(); | Run the task every five minutes |
| ->everyTenMinutes(); | Run the task every ten minutes |
| ->everyFifteenMinutes(); | Run the task every fifteen minutes |
| ->everyThirtyMinutes(); | Run the task every thirty minutes |
| ->hourly(); | Run the task every hour |
| ->hourlyAt(17); | Run the task every hour at 17 mins past the hour |
| ->daily(); | Run the task every day at midnight |
| ->dailyAt(’13:00′); | Run the task every day at 13:00 |
| ->twiceDaily(1, 13); | Run the task daily at 1:00 & 13:00 |
| ->weekly(); | Run the task every week |
| ->weeklyOn(1, ‘8:00’); | Run the task every week on Tuesday at 8:00 |
| ->monthly(); | Run the task every month |
| ->monthlyOn(4, ’15:00′); | Run the task every month on the 4th at 15:00 |
| ->quarterly(); | Run the task every quarter |
| ->yearly(); | Run the task every year |
| ->timezone(‘America/New_York’); | Set the timezone |
app/Console/Kernel.php
<?php
namespace App\Console;
use Illuminate\Console\Scheduling\Schedule;
use Illuminate\Foundation\Console\Kernel as ConsoleKernel;
class Kernel extends ConsoleKernel
{
/**
* The Artisan commands provided by your application.
*
* @var array
*/
protected $commands = [
Commands\DemoCron::class，
];
/**
* Define the application's command schedule.
*
* @param \Illuminate\Console\Scheduling\Schedule $schedule
* @return void
*/
protected function schedule(Schedule $schedule)
{
$schedule->command('demo:cron')
->everyMinute();
}
/**
* Register the commands for the application.
*
* @return void
*/
protected function commands()
{
$this->load(__DIR__.'/Commands');
require base_path('routes/console.php');
}
}步驟4:運行scheduler命令以進行測試
現在我們已準備好運行我們的Cron，因此您可以使用以下命令手動檢查您的Cron命令。
php artisan schedule:run運行以上命令後，您可以檢查我們已打印一些文本的日誌文件。
storage/logs/laravel.php
[2019-04-24 03:46:42] local.INFO: Cron is working fine!
[2019-04-24 03:46:52] local.INFO: Cron is working fine!
[2019-04-24 03:46:55] local.INFO: Cron is working fine!
最後，您可以在調度任務上管理此命令，您必須向服務器的Crontab文件添加一個記錄:
* * * * * php /path/to/artisan schedule:run 1>> /dev/null 2>&1
OR
* * * * * cd /path-to-your-project && php artisan schedule:run >> /dev/null 2>&1