Job與JobDetail在Quartz中的區(qū)別有哪些

public static void main(String[] args) {
   try { //創(chuàng)建scheduler
  Scheduler scheduler = StdSchedulerFactory.getDefaultScheduler();

  //定義一個Trigger
  Trigger trigger =TriggerBuilder.newTrigger().withIdentity("trigger1", "group1") //定義name/group
    .startNow()//一旦加入scheduler，立即生效
    .withSchedule(SimpleScheduleBuilder.simpleSchedule() //使用SimpleTrigger
      .withIntervalInSeconds(1) //每隔一秒執(zhí)行一次
      .repeatForever()) //一直執(zhí)行
    .build();
  //定義一個JobDetail
  JobDetail job =JobBuilder.newJob(HelloQuartz.class) //定義Job類為HelloQuartz類，這是真正的執(zhí)行邏輯所在
    .withIdentity("job1", "group1") //定義name/group
    .usingJobData("name", "quartz") //定義屬性
    .build();
  //加入這個調(diào)度
  scheduler.scheduleJob(job, trigger);
  //啟動之
  scheduler.start();
  //運行一段時間后關(guān)閉
   Thread.sleep(10000);
   scheduler.shutdown(true);
  } catch (Exception e) {
  e.printStackTrace();
}

}

public class HelloQuartz implements Job {
  public void execute(JobExecutionContext context) throws JobExecutionException {
    JobDetail detail = context.getJobDetail();
    String name = detail.getJobDataMap().getString("name");
    System.out.println("say hello to " + name + " at " + new Date());
  }
}

JobDetail job = JobBuilder.newJob(RemindJob.class)
      .withIdentity("job1", "group1").build();//創(chuàng)建一個任務(wù)

  
   /**
   * 創(chuàng)建觸發(fā)器
   * 第一種方式 不太好
   */
  SimpleTrigger trigger = TriggerBuilder.newTrigger().withIdentity("myTrigger", "myTriggerGroup").
  withSchedule(SimpleScheduleBuilder.simpleSchedule().
      withIntervalInSeconds(3).
      repeatForever()).
      startAt(new Date(System.currentTimeMillis()+1000)).build();
  
  
  /**
   * 創(chuàng)建觸發(fā)器
   * 第二種 方式 非常好
   * 可以 好用 2013年每月的第三個星期五上午10:30觸發(fā) 0 30 10 ? * 6#3 2013
   * 2016年每月的第一個星期四下午16:17觸發(fā)  0 17 16 ? * 5#1 2016
   * 每天15點到16點每5分鐘運行一次，此外，每天17點到18點每5分鐘運行一次 

   */
  /*CronTrigger trigger=TriggerBuilder.newTrigger() 
      .withIdentity("myTrigger", "myTriggerGroup")
      .withSchedule(CronScheduleBuilder.cronSchedule("0 18 16 ? * 5#1 2016")).build();*/
  
  SchedulerFactory sf=new StdSchedulerFactory();//創(chuàng)建調(diào)度者工廠
  Scheduler scheduler = sf.getScheduler();//創(chuàng)建一個調(diào)度者
  scheduler.scheduleJob(job,trigger);//注冊并進行調(diào)度
  scheduler.start();//啟動調(diào)度
  
  //Thread.sleep(millis)
  
  //scheduler.shutdown();//關(guān)閉調(diào)度

*/
public class RemindJob implements Job {
private RemindService service=new RemindService();
  @Override
  public void execute(JobExecutionContext context) throws JobExecutionException {
    service.printPlan("你好！");
    
    Date date=new Date();
    String time = date.toString();
    System.out.println(time+"job is starting");
  }

JobDetail job=JobBuilder.newJob(RemindJob.class)
      .withIdentity("job1", "group1")
      .usingJobData("hello", "we are family")
      .build();

@Override
  public void execute(JobExecutionContext context) throws JobExecutionException {
    service.printPlan("你好！");
    JobKey key=context.getJobDetail().getKey();
    
    JobDataMap map = context.getJobDetail().getJobDataMap();
    String string = map.getString("hello");
    System.out.println(key+"==========="+string);
    
    Date date=new Date();
    String time = date.toString();
    System.out.println(time+"job is starting");
  }

@Override
  public void execute(JobExecutionContext context) throws JobExecutionException {
    service.printPlan("你好！");
    JobKey key=context.getJobDetail().getKey();
    
  /*  JobDataMap map = context.getJobDetail().getJobDataMap();
    String string = map.getString("hello");
    System.out.println(key+"==========="+string);*/


     JobDataMap map = context.getMergedJobDataMap();
     String string = map.getString("hello");
     System.out.println(key+"---------------------  "+string);