Quartz 任务调度：初体验

package org.quartz.examples.example1;

import java.util.Date;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.quartz.JobDetail;
import org.quartz.Scheduler;
import org.quartz.SchedulerFactory;
import org.quartz.SimpleTrigger;
import org.quartz.TriggerUtils;
import org.quartz.impl.StdSchedulerFactory;

/**
* This Example will demonstrate how to start and shutdown the Quartz
* scheduler and how to schedule a job to run in Quartz.
*
* @author Bill Kratzer
*/
public class SimpleExample {

     public void run() throws Exception {
        Log log = LogFactory.getLog(SimpleExample. class);

        log.info( "------- 初始化开始 ----------------------");
         // 首先建立一个调度程序工厂
        SchedulerFactory schedulerFactory = new StdSchedulerFactory();
         // 从工厂获取一个调度程序实例
        Scheduler scheduler = schedulerFactory.getScheduler();
        log.info( "------- 初始化完成 -----------");

        log.info( "------- 调度任务 -------------------");

         // 设置做业调度时间：某一时间后的下一秒
        Date runTime = TriggerUtils.getEvenMinuteDate( new Date());

         // 定义一个具体做业job1，并加入group1组，而且绑定到具体的做业类HelloJob上
        JobDetail jobDetail = new JobDetail( "job1", "group1", HelloJob. class);

         // 建立一个简单的触发器
        SimpleTrigger simpleTrigger = new SimpleTrigger( "trigger1", "group1");
         // 设置触发时间
        simpleTrigger.setStartTime(runTime);
         // 设置重复执行周期
        simpleTrigger.setRepeatInterval(2000);
         // 设置重复执行次数
        simpleTrigger.setRepeatCount(3);


         // 设置调度的具体做业和相关的触发器
        scheduler.scheduleJob(jobDetail, simpleTrigger);
        log.info(jobDetail.getFullName() + " 将在某时刻: " + runTime + " 运行!");

         // 启动调度程序
        scheduler.start();
        log.info( "------- 已启动调度程序 -----------------");

         // wait long enough so that the scheduler as an opportunity to  
         // run the job!
        log.info( "------- 等待15秒... -------------");
         try {
             // 等待15秒显示
            Thread.sleep(15L * 1000L);
             // 执行......
        } catch (Exception e) {
        }

         // 关闭调度程序
        log.info( "------- 关闭调度程序开始 ---------------------");
        scheduler.shutdown( true);
        log.info( "------- 关闭调度程序完成 -----------------");
    }

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

        SimpleExample example = new SimpleExample();
        example.run();

    }
}

package org.quartz.examples.example1;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.quartz.Job;
import org.quartz.JobExecutionContext;
import org.quartz.JobExecutionException;

import java.util.Date;

/**
* <p>
* This is just a simple job that says "Hello" to the world.
* 一个简单的做业，来自Quartz的Simple Examples。
* </p>
*
* @author Bill Kratzer
*/
public class HelloJob implements Job {

     private static Log _log = LogFactory.getLog(HelloJob. class);

     /**
     * <p>
     * Empty constructor for job initilization
     * </p>
     * <p>
     * Quartz requires a public empty constructor so that the
     * scheduler can instantiate the class whenever it needs.
     * </p>
     */
     public HelloJob() {
    }

     /**
     * <p>
     * Called by the <code>{@link org.quartz.Scheduler}</code> when a
     * <code>{@link org.quartz.Trigger}</code> fires that is associated with
     * the <code>Job</code>.
     * </p>
     *
     * @throws JobExecutionException if there is an exception while executing the job.
     */
     public void execute(JobExecutionContext context)
             throws JobExecutionException {

         // Say Hello to the World and display the date/time
        _log.info( "Hello World! - " + new Date());
    }
}

2008-08-21 00:01:06  - INFO  org.quartz.examples.example1.SimpleExample     - ------- 初始化开始 ----------------------
2008-08-21 00:01:07  - INFO  org.quartz.simpl.SimpleThreadPool     - Job execution threads will use class loader of thread: main
2008-08-21 00:01:07  - INFO  org.quartz.core.QuartzScheduler     - Quartz Scheduler v.1.6.0 created.
2008-08-21 00:01:07  - INFO  org.quartz.simpl.RAMJobStore     - RAMJobStore initialized.
2008-08-21 00:01:07  - INFO  org.quartz.impl.StdSchedulerFactory     - Quartz scheduler 'DefaultQuartzScheduler' initialized from default resource file in Quartz package: 'quartz.properties'
2008-08-21 00:01:07  - INFO  org.quartz.impl.StdSchedulerFactory     - Quartz scheduler version: 1.6.0
2008-08-21 00:01:07  - INFO  org.quartz.examples.example1.SimpleExample     - ------- 初始化完成 -----------
2008-08-21 00:01:07  - INFO  org.quartz.examples.example1.SimpleExample     - ------- 调度任务 -------------------
2008-08-21 00:01:07  - INFO  org.quartz.examples.example1.SimpleExample     - group1.job1 将在某时刻: Thu Aug 21 00:02:00 CST 2008 运行!
2008-08-21 00:01:07  - INFO  org.quartz.core.QuartzScheduler     - Scheduler DefaultQuartzScheduler_$_NON_CLUSTERED started.
2008-08-21 00:01:07  - INFO  org.quartz.examples.example1.SimpleExample     - ------- 已启动调度程序 -----------------
2008-08-21 00:01:07  - INFO  org.quartz.examples.example1.SimpleExample     - ------- 等待15秒... -------------
2008-08-21 00:01:09  - INFO  org.quartz.examples.example1.SimpleExample     - ------- 关闭调度程序开始 ---------------------
2008-08-21 00:01:09  - INFO  org.quartz.core.QuartzScheduler     - Scheduler DefaultQuartzScheduler_$_NON_CLUSTERED shutting down.
2008-08-21 00:01:09  - INFO  org.quartz.core.QuartzScheduler     - Scheduler DefaultQuartzScheduler_$_NON_CLUSTERED paused.
2008-08-21 00:01:09  - INFO  org.quartz.simpl.SimpleThreadPool     - There are still 13 worker threads active. See javadoc runInThread(Runnable) for a possible explanation
2008-08-21 00:01:09  - INFO  org.quartz.core.QuartzScheduler     - Scheduler DefaultQuartzScheduler_$_NON_CLUSTERED shutdown complete.
2008-08-21 00:01:09  - INFO  org.quartz.examples.example1.SimpleExample     - ------- 关闭调度程序完成 -----------------

Process finished with exit code 0