我的漫漫程序之旅

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数据加载中……

Quartz优先级的使用

建三个Job类:
import org.quartz.Job;
import org.quartz.JobExecutionContext;
import org.quartz.JobExecutionException;

public class JobTest1 implements Job
{

    public void execute(JobExecutionContext jobexecutioncontext)
            throws JobExecutionException
    {
        System.out.println("JobTest1");
    }

}
import org.quartz.Job;
import org.quartz.JobExecutionContext;
import org.quartz.JobExecutionException;

public class JobTest2 implements Job
{

    public void execute(JobExecutionContext jobexecutioncontext)
            throws JobExecutionException
    {
        System.out.println("JobTest2");
    }

}
import org.quartz.Job;
import org.quartz.JobExecutionContext;
import org.quartz.JobExecutionException;

public class JobTest3 implements Job
{

    public void execute(JobExecutionContext jobexecutioncontext)
            throws JobExecutionException
    {
        System.out.println("JobTest3");
    }

}

比较简单,上面三个类就不多说了.
测试类:

import java.util.Date;

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

public class PriorityTest
{
    public static void main(String[] args) throws Exception
    {
        SchedulerFactory sf = new StdSchedulerFactory();
        Scheduler scheduler = sf.getScheduler();

        JobDetail job1 = new JobDetail();
        job1.setName("jobDetail1");
        job1.setGroup("a");
        job1.setJobClass(JobTest1.class);

        JobDetail job2 = new JobDetail();
        job2.setName("jobDetail2");
        job2.setGroup("b");
        job2.setJobClass(JobTest2.class);

        JobDetail job3 = new JobDetail();
        job3.setName("jobDetail3");
        job3.setGroup("c");
        job3.setJobClass(JobTest3.class);

        Trigger trigger1 = new SimpleTrigger();
        trigger1.setName("trigger1");
        trigger1.setStartTime(new Date());
        //优先级默认是5
        trigger1.setPriority(Trigger.DEFAULT_PRIORITY);
        
        Trigger trigger2 = new SimpleTrigger();
        trigger2.setName("trigger2");
        trigger2.setStartTime(new Date());
        trigger2.setPriority(100);
        
        Trigger trigger3 = new SimpleTrigger();
        trigger3.setName("trigger3");
        trigger3.setStartTime(new Date());
        trigger3.setPriority(15);
        
        
        scheduler.scheduleJob(job1, trigger1);
        scheduler.scheduleJob(job2, trigger2);
        scheduler.scheduleJob(job3, trigger3);

        scheduler.start();
    }

}

输出:
JobTest2
JobTest3
JobTest1
由此我们可以看出优先级决定于整形数值的大小.
数值越大优先级越高.

posted on 2008-05-08 16:36 々上善若水々 阅读(5652) 评论(0)  编辑  收藏 所属分类: opensource


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