symfony4定时任务配置

在 Symfony4 中，你可以使用定时任务组件Symfony\Component\Console\Command\Scheduler来安排定时任务。以下是配置步骤：

1. 安装组件：

composer require symfony/console

2. 创建定时任务类，如下所示：

namespace App\Command;

use Symfony\Component\Console\Command\Command;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Output\OutputInterface;

class MyScheduledTaskCommand extends Command
{
    protected static $defaultName = 'my:scheduled:task';

    protected function configure()
    {
        $this
            ->setDescription('My scheduled task');
    }

    protected function execute(InputInterface $input, OutputInterface $output)
    {
        // Do something here
    }
}

3. 创建定时任务定义类，如下所示：

namespace App\Console;

use App\Command\MyScheduledTaskCommand;
use Symfony\Component\Console\Command\Command;
use Symfony\Component\Console\Exception\SchedulerRuntimeException;
use Symfony\Component\Console\Scheduler\Schedule;
use Symfony\Component\Console\Scheduler\ScheduleBuilder;
use Symfony\Component\Console\Scheduler\SymfonyScheduler;

class Scheduler
{
    private $scheduler;

    public function __construct()
    {
        $this->scheduler = new SymfonyScheduler();
    }

    public function schedule(): void
    {
        $this->scheduler->addCommand(new MyScheduledTaskCommand())
            ->setDescription('My scheduled task')
            ->setSchedule((new ScheduleBuilder())
                ->at('*/5 * * * *')
                ->getSchedule()
            );
    }

    public function run(): void
    {
        try {
            $this->scheduler->run();
        } catch (SchedulerRuntimeException $e) {
            // Handle exception here
        }
    }
}

4. 在services.yaml文件中定义Scheduler服务：

services:
    _defaults:
        autowire: true
        autoconfigure: true
        public: false

    App\Console\Scheduler:
        public: true

5. 在控制器或其他地方调用Scheduler服务的schedule()方法，如下所示：

namespace App\Controller;

use App\Console\Scheduler;
use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Symfony\Component\Routing\Annotation\Route;

class DefaultController extends AbstractController
{
    /**
     * @Route("/schedule")
     */
    public function schedule(Scheduler $scheduler)
    {
        $scheduler->schedule();

        return $this->redirectToRoute('homepage');
    }
}

6. 在终端中运行以下命令，以启动定时任务：

php bin/console schedule:run

以上就是在Symfony4中配置定时任务的步骤。