import java.text.SimpleDateFormat; 

import java.util.Date; 

import org.quartz.Job;

import org.quartz.JobExecutionContext;

import org.quartz.JobExecutionException; 

public class myJob implements Job { 

    @Override

    public void execute(JobExecutionContext arg0) throws JobExecutionException {

        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss SSS");

        System.out.println(sdf.format(new Date()));

    } 

}

 import static org.quartz.CronScheduleBuilder.cronSchedule;

 import static org.quartz.JobBuilder.newJob;

 import static org.quartz.TriggerBuilder.newTrigger; 

 import java.text.SimpleDateFormat;

 import java.util.Date; 

 import org.quartz.CronTrigger;

 import org.quartz.JobDetail;

 import org.quartz.Scheduler;

 import org.quartz.SchedulerFactory;

 import org.quartz.impl.StdSchedulerFactory; 

 public class Test {

     public void go() throws Exception {

         // 首先，必需要取得一个Scheduler的引用

       SchedulerFactory sf = new StdSchedulerFactory();

         Scheduler sched = sf.getScheduler();

         //jobs可以在scheduled的sched.start()方法前被调用 

         //job 1将每隔20秒执行一次

         JobDetail job = newJob(myJob.class).withIdentity("job1", "group1").build();

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

         Date ft = sched.scheduleJob(job, trigger);

         SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss SSS");

         System.out.println(job.getKey() + " 已被安排执行于: " + sdf.format(ft) + "，并且以如下重复规则重复执行: " + trigger.getCronExpression()); 

         // job 2将每2分钟执行一次（在该分钟的第15秒)

         job = newJob(myJob.class).withIdentity("job2", "group1").build();

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

         ft = sched.scheduleJob(job, trigger);

        System.out.println(job.getKey() + " 已被安排执行于: " + sdf.format(ft) + "，并且以如下重复规则重复执行: "+ trigger.getCronExpression()); 

         // 开始执行，start()方法被调用后，计时器就开始工作，计时调度中允许放入N个Job

       sched.start();

         try {

             //主线程等待一分钟

             Thread.sleep(60L * 1000L);

         } catch (Exception e) {}

        //关闭定时调度，定时器不再工作

        sched.shutdown(true);

 } 

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

         Test test = new Test();

         test.go();

     } 

 } 

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