示例3 - Cron触发器

说明

此示例展示如何使用Cron触发器来安排作业。

SimpleJob.java源码

package org.quartz.examples.example3;

import java.util.Date;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.quartz.Job;
import org.quartz.JobExecutionContext;
import org.quartz.JobExecutionException;
import org.quartz.JobKey;

/**
 * 这只是被例1执行过许多次的简单作业（只改了一下输出信息）
 * 作者：Bill Kratzer
 */
public class SimpleJob implements Job {

    private static Logger _log = LoggerFactory.getLogger(SimpleJob.class);

    /**
     * 作业初始化的空参构造函数
     */
    public SimpleJob() {
    }

    /**
     * 当与此作业相关联的触发器触发时，由调度器调用此方法
     * Throws：作业执行异常（JobExecutionException）-当执行作业时产生异常
     */
    public void execute(JobExecutionContext context)
        throws JobExecutionException {

        //该作业简略地输出它的名称及执行时间
        JobKey jobKey = context.getJobDetail().getKey();
        _log.info("SimpleJob says: " + jobKey + " executing at " + new Date());
    }

}

CronTriggerExample.java源码

package org.quartz.examples.example3;

import static org.quartz.CronScheduleBuilder.cronSchedule;
import static org.quartz.JobBuilder.newJob;
import static org.quartz.TriggerBuilder.newTrigger;
import org.quartz.CronTrigger;
import org.quartz.JobDetail;
import org.quartz.Scheduler;
import org.quartz.SchedulerFactory;
import org.quartz.SchedulerMetaData;
import org.quartz.impl.StdSchedulerFactory;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.Date;

/**
 * 本示例将使用Cron触发器演示Quartz的所有基本调度功能
 * 作者：Bill Kratzer
 */
public class CronTriggerExample {

  public void run() throws Exception {
    Logger log = LoggerFactory.getLogger(CronTriggerExample.class);

    log.info("------- Initializing -------------------");

    //首先，我们必须获得对调度器的引用
    SchedulerFactory sf = new StdSchedulerFactory();
    Scheduler sched = sf.getScheduler();

    log.info("------- Initialization Complete --------");

    log.info("------- Scheduling Jobs ----------------");

    //可以在sched.start()方法调用前安排作业

    //作业1将每20秒执行1次
    JobDetail job = newJob(SimpleJob.class).withIdentity("job1", "group1").build();

    CronTrigger trigger = newTrigger().withIdentity("trigger1", "group1").withSchedule(cronSchedule("0/20 * * * * ?")).build();

    Date ft = sched.scheduleJob(job, trigger);
    log.info(job.getKey() + " has been scheduled to run at: " + ft + " and repeat based on expression: "
             + trigger.getCronExpression());

    //作业2将每2分钟执行1次（第15秒开始）
    job = newJob(SimpleJob.class).withIdentity("job2", "group1").build();

    trigger = newTrigger().withIdentity("trigger2", "group1").withSchedule(cronSchedule("15 0/2 * * * ?")).build();

    ft = sched.scheduleJob(job, trigger);
    log.info(job.getKey() + " has been scheduled to run at: " + ft + " and repeat based on expression: "
             + trigger.getCronExpression());

    //作业3将每2分钟执行1次，但仅在上午8点到下午5点之间执行
    job = newJob(SimpleJob.class).withIdentity("job3", "group1").build();

    trigger = newTrigger().withIdentity("trigger3", "group1").withSchedule(cronSchedule("0 0/2 8-17 * * ?")).build();

    ft = sched.scheduleJob(job, trigger);
    log.info(job.getKey() + " has been scheduled to run at: " + ft + " and repeat based on expression: "
             + trigger.getCronExpression());

    //作业4将每3分钟执行1次，但仅在下午5点到11点之间执行
    job = newJob(SimpleJob.class).withIdentity("job4", "group1").build();

    trigger = newTrigger().withIdentity("trigger4", "group1").withSchedule(cronSchedule("0 0/3 17-23 * * ?")).build();

    ft = sched.scheduleJob(job, trigger);
    log.info(job.getKey() + " has been scheduled to run at: " + ft + " and repeat based on expression: "
             + trigger.getCronExpression());

    //作业5将在本月1日和15日上午10点执行
    job = newJob(SimpleJob.class).withIdentity("job5", "group1").build();

    trigger = newTrigger().withIdentity("trigger5", "group1").withSchedule(cronSchedule("0 0 10am 1,15 * ?")).build();

    ft = sched.scheduleJob(job, trigger);
    log.info(job.getKey() + " has been scheduled to run at: " + ft + " and repeat based on expression: "
             + trigger.getCronExpression());

    //作业6将每30秒执行1次，但仅在工作日（周一至周五）执行
    job = newJob(SimpleJob.class).withIdentity("job6", "group1").build();

    trigger = newTrigger().withIdentity("trigger6", "group1").withSchedule(cronSchedule("0,30 * * ? * MON-FRI"))
        .build();

    ft = sched.scheduleJob(job, trigger);
    log.info(job.getKey() + " has been scheduled to run at: " + ft + " and repeat based on expression: "
             + trigger.getCronExpression());

    //作业7将每30秒执行1次，但仅在周末（周六和周日）执行
    job = newJob(SimpleJob.class).withIdentity("job7", "group1").build();

    trigger = newTrigger().withIdentity("trigger7", "group1").withSchedule(cronSchedule("0,30 * * ? * SAT,SUN"))
        .build();

    ft = sched.scheduleJob(job, trigger);
    log.info(job.getKey() + " has been scheduled to run at: " + ft + " and repeat based on expression: "
             + trigger.getCronExpression());

    log.info("------- Starting Scheduler ----------------");

    //所有作业都已添加到调度器中，但在调度器启动之前，所有作业都不会执行
    sched.start();

    log.info("------- Started Scheduler -----------------");

    log.info("------- Waiting five minutes... ------------");
    try {
      //等待5分钟以显示作业
      Thread.sleep(300L * 1000L);
      //执行中…
    } catch (Exception e) {
      //
    }

    log.info("------- Shutting Down ---------------------");

    sched.shutdown(true);

    log.info("------- Shutdown Complete -----------------");

    SchedulerMetaData metaData = sched.getMetaData();
    log.info("Executed " + metaData.getNumberOfJobsExecuted() + " jobs.");

  }

  public static void main(String[] args) throws Exception {

    CronTriggerExample example = new CronTriggerExample();
    example.run();
  }

}

控制台输出

[main] INFO org.quartz.examples.example3.CronTriggerExample - ------- Initializing -------------------
[main] INFO org.quartz.impl.StdSchedulerFactory - Using default implementation for ThreadExecutor
[main] INFO org.quartz.simpl.SimpleThreadPool - Job execution threads will use class loader of thread: main
[main] INFO org.quartz.core.SchedulerSignalerImpl - Initialized Scheduler Signaller of type: class org.quartz.core.SchedulerSignalerImpl
[main] INFO org.quartz.core.QuartzScheduler - Quartz Scheduler v.2.3.0 created.
[main] INFO org.quartz.simpl.RAMJobStore - RAMJobStore initialized.
[main] INFO org.quartz.core.QuartzScheduler - Scheduler meta-data: Quartz Scheduler (v2.3.0) 'DefaultQuartzScheduler' with instanceId 'NON_CLUSTERED'
  Scheduler class: 'org.quartz.core.QuartzScheduler' - running locally.
  NOT STARTED.
  Currently in standby mode.
  Number of jobs executed: 0
  Using thread pool 'org.quartz.simpl.SimpleThreadPool' - with 10 threads.
  Using job-store 'org.quartz.simpl.RAMJobStore' - which does not support persistence. and is not clustered.

[main] INFO org.quartz.impl.StdSchedulerFactory - Quartz scheduler 'DefaultQuartzScheduler' initialized from default resource file in Quartz package: 'quartz.properties'
[main] INFO org.quartz.impl.StdSchedulerFactory - Quartz scheduler version: 2.3.0
[main] INFO org.quartz.examples.example3.CronTriggerExample - ------- Initialization Complete --------
[main] INFO org.quartz.examples.example3.CronTriggerExample - ------- Scheduling Jobs ----------------
[main] INFO org.quartz.examples.example3.CronTriggerExample - group1.job1 has been scheduled to run at: Tue Nov 29 23:10:00 CST 2022 and repeat based on expression: 0/20 * * * * ?
[main] INFO org.quartz.examples.example3.CronTriggerExample - group1.job2 has been scheduled to run at: Tue Nov 29 23:10:15 CST 2022 and repeat based on expression: 15 0/2 * * * ?
[main] INFO org.quartz.examples.example3.CronTriggerExample - group1.job3 has been scheduled to run at: Wed Nov 30 08:00:00 CST 2022 and repeat based on expression: 0 0/2 8-17 * * ?
[main] INFO org.quartz.examples.example3.CronTriggerExample - group1.job4 has been scheduled to run at: Tue Nov 29 23:12:00 CST 2022 and repeat based on expression: 0 0/3 17-23 * * ?
[main] INFO org.quartz.examples.example3.CronTriggerExample - group1.job5 has been scheduled to run at: Thu Dec 01 10:00:00 CST 2022 and repeat based on expression: 0 0 10AM 1,15 * ?
[main] INFO org.quartz.examples.example3.CronTriggerExample - group1.job6 has been scheduled to run at: Tue Nov 29 23:10:00 CST 2022 and repeat based on expression: 0,30 * * ? * MON-FRI
[main] INFO org.quartz.examples.example3.CronTriggerExample - group1.job7 has been scheduled to run at: Sat Dec 03 00:00:00 CST 2022 and repeat based on expression: 0,30 * * ? * SAT,SUN
[main] INFO org.quartz.examples.example3.CronTriggerExample - ------- Starting Scheduler ----------------
[main] INFO org.quartz.core.QuartzScheduler - Scheduler DefaultQuartzScheduler_$_NON_CLUSTERED started.
[main] INFO org.quartz.examples.example3.CronTriggerExample - ------- Started Scheduler -----------------
[main] INFO org.quartz.examples.example3.CronTriggerExample - ------- Waiting five minutes... ------------
[DefaultQuartzScheduler_Worker-1] INFO org.quartz.examples.example3.SimpleJob - SimpleJob says: group1.job1 executing at Tue Nov 29 23:10:00 CST 2022
[DefaultQuartzScheduler_Worker-2] INFO org.quartz.examples.example3.SimpleJob - SimpleJob says: group1.job6 executing at Tue Nov 29 23:10:00 CST 2022
[DefaultQuartzScheduler_Worker-3] INFO org.quartz.examples.example3.SimpleJob - SimpleJob says: group1.job2 executing at Tue Nov 29 23:10:15 CST 2022
[DefaultQuartzScheduler_Worker-4] INFO org.quartz.examples.example3.SimpleJob - SimpleJob says: group1.job1 executing at Tue Nov 29 23:10:20 CST 2022
[DefaultQuartzScheduler_Worker-5] INFO org.quartz.examples.example3.SimpleJob - SimpleJob says: group1.job6 executing at Tue Nov 29 23:10:30 CST 2022
[DefaultQuartzScheduler_Worker-6] INFO org.quartz.examples.example3.SimpleJob - SimpleJob says: group1.job1 executing at Tue Nov 29 23:10:40 CST 2022
[DefaultQuartzScheduler_Worker-7] INFO org.quartz.examples.example3.SimpleJob - SimpleJob says: group1.job1 executing at Tue Nov 29 23:11:00 CST 2022
[DefaultQuartzScheduler_Worker-8] INFO org.quartz.examples.example3.SimpleJob - SimpleJob says: group1.job6 executing at Tue Nov 29 23:11:00 CST 2022
[DefaultQuartzScheduler_Worker-9] INFO org.quartz.examples.example3.SimpleJob - SimpleJob says: group1.job1 executing at Tue Nov 29 23:11:20 CST 2022
[DefaultQuartzScheduler_Worker-10] INFO org.quartz.examples.example3.SimpleJob - SimpleJob says: group1.job6 executing at Tue Nov 29 23:11:30 CST 2022
[DefaultQuartzScheduler_Worker-1] INFO org.quartz.examples.example3.SimpleJob - SimpleJob says: group1.job1 executing at Tue Nov 29 23:11:40 CST 2022
[DefaultQuartzScheduler_Worker-2] INFO org.quartz.examples.example3.SimpleJob - SimpleJob says: group1.job1 executing at Tue Nov 29 23:12:00 CST 2022
[DefaultQuartzScheduler_Worker-3] INFO org.quartz.examples.example3.SimpleJob - SimpleJob says: group1.job4 executing at Tue Nov 29 23:12:00 CST 2022
[DefaultQuartzScheduler_Worker-4] INFO org.quartz.examples.example3.SimpleJob - SimpleJob says: group1.job6 executing at Tue Nov 29 23:12:00 CST 2022
[DefaultQuartzScheduler_Worker-5] INFO org.quartz.examples.example3.SimpleJob - SimpleJob says: group1.job2 executing at Tue Nov 29 23:12:15 CST 2022
[DefaultQuartzScheduler_Worker-6] INFO org.quartz.examples.example3.SimpleJob - SimpleJob says: group1.job1 executing at Tue Nov 29 23:12:20 CST 2022
[DefaultQuartzScheduler_Worker-8] INFO org.quartz.examples.example3.SimpleJob - SimpleJob says: group1.job6 executing at Tue Nov 29 23:12:30 CST 2022
[DefaultQuartzScheduler_Worker-7] INFO org.quartz.examples.example3.SimpleJob - SimpleJob says: group1.job1 executing at Tue Nov 29 23:12:40 CST 2022
[DefaultQuartzScheduler_Worker-9] INFO org.quartz.examples.example3.SimpleJob - SimpleJob says: group1.job1 executing at Tue Nov 29 23:13:00 CST 2022
[DefaultQuartzScheduler_Worker-10] INFO org.quartz.examples.example3.SimpleJob - SimpleJob says: group1.job6 executing at Tue Nov 29 23:13:00 CST 2022
[DefaultQuartzScheduler_Worker-1] INFO org.quartz.examples.example3.SimpleJob - SimpleJob says: group1.job1 executing at Tue Nov 29 23:13:20 CST 2022
[DefaultQuartzScheduler_Worker-2] INFO org.quartz.examples.example3.SimpleJob - SimpleJob says: group1.job6 executing at Tue Nov 29 23:13:30 CST 2022
[DefaultQuartzScheduler_Worker-3] INFO org.quartz.examples.example3.SimpleJob - SimpleJob says: group1.job1 executing at Tue Nov 29 23:13:40 CST 2022
[DefaultQuartzScheduler_Worker-4] INFO org.quartz.examples.example3.SimpleJob - SimpleJob says: group1.job1 executing at Tue Nov 29 23:14:00 CST 2022
[DefaultQuartzScheduler_Worker-5] INFO org.quartz.examples.example3.SimpleJob - SimpleJob says: group1.job6 executing at Tue Nov 29 23:14:00 CST 2022
[DefaultQuartzScheduler_Worker-6] INFO org.quartz.examples.example3.SimpleJob - SimpleJob says: group1.job2 executing at Tue Nov 29 23:14:15 CST 2022
[DefaultQuartzScheduler_Worker-8] INFO org.quartz.examples.example3.SimpleJob - SimpleJob says: group1.job1 executing at Tue Nov 29 23:14:20 CST 2022
[DefaultQuartzScheduler_Worker-7] INFO org.quartz.examples.example3.SimpleJob - SimpleJob says: group1.job6 executing at Tue Nov 29 23:14:30 CST 2022
[DefaultQuartzScheduler_Worker-9] INFO org.quartz.examples.example3.SimpleJob - SimpleJob says: group1.job1 executing at Tue Nov 29 23:14:40 CST 2022
[main] INFO org.quartz.examples.example3.CronTriggerExample - ------- Shutting Down ---------------------
[main] INFO org.quartz.core.QuartzScheduler - Scheduler DefaultQuartzScheduler_$_NON_CLUSTERED shutting down.
[main] INFO org.quartz.core.QuartzScheduler - Scheduler DefaultQuartzScheduler_$_NON_CLUSTERED paused.
[main] INFO org.quartz.core.QuartzScheduler - Scheduler DefaultQuartzScheduler_$_NON_CLUSTERED shutdown complete.
[main] INFO org.quartz.examples.example3.CronTriggerExample - ------- Shutdown Complete -----------------
[main] INFO org.quartz.examples.example3.CronTriggerExample - Executed 29 jobs.

Process finished with exit code 0