quartz定时器

import java.text.ParseException;  import org.quartz.CronTrigger;  import org.quartz.JobDetail;  import org.quartz.Scheduler;  import org.quartz.SchedulerException;  import org.quartz.SchedulerFactory;  import org.quartz.impl.StdSchedulerFactory;  /***   *   * @author 刘毅   * @date 2010-1-23   * @param 定时器简单封装(待运行的类需实现job)   */  public class QuartzMethod {      public  SchedulerFactory sf = new StdSchedulerFactory();      public Scheduler sched;      public JobDetail job;      public CronTrigger cron;   /**    * 设置定时器信息(工作名,组名,类名)    * */   public  void setQuartzInfo(String taskName,String taskGroup,Object obj){        try {     sched = sf.getScheduler();     job = new JobDetail(taskName,taskGroup,(Class<?>) obj);    } catch (SchedulerException e) {     e.printStackTrace();    }   }   /**    * 工作名,组名,时间    * */   public  void setCronTrigger(String triggerName,String taskGroup,String setTime){         try {      cron = new CronTrigger(triggerName,triggerName,setTime);     } catch (ParseException e) {      e.printStackTrace();     }   }   /**    * 设置休眠时间    * */   public void setSleep(long setSleepTime){    try {     Thread.sleep(setSleepTime);    } catch (InterruptedException e) {     e.printStackTrace();    }   }   /**    * 运行定时器    * */    public void run(){     try {     sched.scheduleJob(job, cron);     sched.start();    } catch (SchedulerException e) {     e.printStackTrace();    }    }    }    public static void main(String[] args) {    QuartzMethod qm = new QuartzMethod();    qm.setQuartzInfo("job", "groutp",SimpleJob.class);    qm.setCronTrigger("job1","groutp","*/2 * * * * ?");    qm.run();  }