Quartz中SimpleTrigger

Quartz中SimpleTrigger的探討

讓我們繼續用第一個例子中StringTest.
1.來寫一個每隔10秒啓動一次任務的例子.

import java.util.Date;

import org.quartz.JobDetail;
import org.quartz.Scheduler;
import org.quartz.SchedulerFactory;
import org.quartz.SimpleTrigger;
import org.quartz.impl.StdSchedulerFactory;

public class SimpleTriggerTest
{

    public static void main(String[] args) throws Exception
    {
        SchedulerFactory schedulerFactory = new StdSchedulerFactory();
        Scheduler scheduler = schedulerFactory.getScheduler();
        // 系統當前時間10秒後
        long startTime = System.currentTimeMillis() + 10000L;
        SimpleTrigger trigger = new SimpleTrigger("myTrigger", null, new Date(
                startTime), null, 0, 0L);

        JobDetail jobDetail = new JobDetail();
        jobDetail.setJobClass(StringTest.class);
        jobDetail.setName("test");
        jobDetail.setGroup("A");

        scheduler.scheduleJob(jobDetail, trigger);
        scheduler.start();
    }
}

2.創建一個觸發器,立即啓動,每隔60秒,啓動一次.

SimpleTrigger trigger = new SimpleTrigger("myTrigger",
                                            null,
                                            new Date(),
                                            null,
                                            SimpleTrigger.REPEAT_INDEFINITELY,
                                            60L * 1000L);

3.創建一個觸發器,立即啓動.從現在開始的第10秒到第40秒重複運行.

long endTime = System.currentTimeMillis() + 40000L;

  SimpleTrigger trigger = new SimpleTrigger("myTrigger",
                                            "myGroup",
                                            new Date(),
                                            new Date(endTime),
                                            SimpleTrigger.REPEAT_INDEFINITELY,
                                            10L * 1000L);

4.創建一個觸發器,在2008年5月9日,上午10點半執行,重複5次,每隔30秒一次.

java.util.Calendar cal = new java.util.GregorianCalendar(2008, cal.MARCH, 9);
  cal.set(cal.HOUR, 10);
  cal.set(cal.MINUTE, 30);
  cal.set(cal.SECOND, 0);
  cal.set(cal.MILLISECOND, 0);

  Data startTime = cal.getTime()

  SimpleTrigger trigger = new SimpleTrigger("myTrigger",
                                            null,
                                            startTime,
                                            null,
                                            5,
                                            30L * 1000L);

仔細體會SimpleTrigger的例子,你會發現用這個製作執行計劃會更簡單方便. 

下面是JobBean的代碼

public class JobBean extends QuartzJobBean {

	protected void executeInternal(JobExecutionContext arg0)
			throws JobExecutionException {
		System.out.println("成功了");
	}
}