原 自学JVAVA---（68）--（内功心法【66】）QUARTZ

QUARTZ
【小城贝尔】
定时调度更高级，开源组织在雄起。
初学抓瞎难自己，多看案例勿放弃。

quartz：石英
下载网址：http://www.quartz-scheduler.org/

// 需要定时运行的资源
public  class  QUARTZB  implements Job {

    public void execute(JobExecutionContext context)
            throws JobExecutionException {
        for (int i = 0 ; i < 10; i ++){
            try {
                Thread.sleep(1000);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            System.out.println("我是内部类  i am learning  QUARTZ......."+i);
        }
    }
}

 SimpleExample {
  public void run() throws Exception {
    //首先根据工厂获得调度
    // First we must get a reference to a scheduler
    SchedulerFactory sf = new StdSchedulerFactory();
    Scheduler sched = sf.getScheduler();

    //任务调度运行的时间
    // computer a time that is on the next round minute
    Date runTime = evenMinuteDate(new Date());
    //将时间改到五秒后运行
    runTime = new Date(System.currentTimeMillis() + 1000*5);

    //需要运行的任务
    // define the job and tie it to our HelloJob class
    JobDetail job = newJob(QUARTZB.class).withIdentity("job2", "group2").build();

    //触发器 触发在指定的时间运行
    // Trigger the job to run on the next round minute
    Trigger trigger = newTrigger().withIdentity("trigger2", "group2").startAt(runTime).build();

    // Tell quartz to schedule the job using our trigger
    sched.scheduleJob(job, trigger);
    //调度执行
    // Start up the scheduler (nothing can actually run until the
    // scheduler has been started)
    sched.start();

    //等待调度任务执行 一段时间后关闭调度
    // wait long enough so that the scheduler as an opportunity to
    // run the job!
    try {
      // wait 65 seconds to show job
      Thread.sleep(65L * 1000L);
      // executing...
    } catch (Exception e) {
      //
    }
    //关闭调度
    // shut down the scheduler
    sched.shutdown(true);

  }

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

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

    我是内部类  i am learning  QUARTZ.......0
    我是内部类  i am learning  QUARTZ.......1
    我是内部类  i am learning  QUARTZ.......2
    我是内部类  i am learning  QUARTZ.......3
    我是内部类  i am learning  QUARTZ.......4
    我是内部类  i am learning  QUARTZ.......5
    我是内部类  i am learning  QUARTZ.......6
    我是内部类  i am learning  QUARTZ.......7
    我是内部类  i am learning  QUARTZ.......8
    我是内部类  i am learning  QUARTZ.......9

*/

  }
}