scala - 如何在Play 2.0中实现特定日期的预定作业？

Question

Where is the job support in Play 2.0?

我已阅读此帖子，并找到了使用 Global 和 Akka 每隔一段时间实现计划作业的方法。

但仍然不知道在特定日期安排作业，例如，每天午夜执行一次的作业。

Play 2.0不支持？如果没有，最好的方法是什么？

Answer 1

您可以将 Quartz 库与 CronTrigger 一起使用在特定日期/时间执行作业。看看他们的tutorial 。这是一个简单调度程序的示例:

import java.util.Date

import org.quartz.JobBuilder.newJob
import org.quartz.SimpleScheduleBuilder.simpleSchedule
import org.quartz.TriggerBuilder.newTrigger
import org.quartz.impl.StdSchedulerFactory
import org.quartz.Job
import org.quartz.JobExecutionContext

import play.api.Application
import play.api.GlobalSettings
import play.api.Logger

object Global extends GlobalSettings {

  val scheduler = StdSchedulerFactory.getDefaultScheduler();

  override def onStart(app: Application) {
    Logger.info("Quarz scheduler starting...")

    scheduler.start();

    // define the job and tie it to our HelloJob class
    val job = newJob(classOf[MyWorker]).withIdentity("job1", "group1").build();

    // Trigger the job to run now, and then repeat every 10 seconds
    val trigger = newTrigger()
      .withIdentity("trigger1", "group1")
      .startNow()
      .withSchedule(simpleSchedule()
        .withIntervalInSeconds(10)
        .repeatForever())
      .build();

    // Tell quartz to schedule the job using our trigger
    scheduler.scheduleJob(job, trigger);

  }

  override def onStop(app: Application) {
    Logger.info("Quartz scheduler shutdown.")
    scheduler.shutdown();
  }

}

class MyWorker extends Job {
  def execute(ctxt: JobExecutionContext) {
    Logger.debug("Scheduled Job triggered at: " + new Date)
  }
}