quartz 一个JobDetail 如何设置多个触发器

http://www.iteye.com/problems/47143

     	
                  JobDetail jobDetail = new JobDetail(jobName, jobGroupName, class1.getClass());
                	Trigger trigger3 =TriggerUtils.makeMinutelyTrigger("trigger2", 10, SimpleTrigger.REPEAT_INDEFINITELY);
                	Trigger trigger4 =TriggerUtils.makeSecondlyTrigger("trigger1",5000, SimpleTrigger.REPEAT_INDEFINITELY);
                	scheduler.scheduleJob(jobDetail, trigger3);
                	[color=red]scheduler.scheduleJob(jobDetail, trigger4);[/color]                

红色处报异常了。。。

Unable to store Job with name: '1000000000' and group: 'jobDetailGroup2', because one already exists with this identification. 
org.quartz.ObjectAlreadyExistsException: Unable to store Job with name: '1000000000' and group: 'jobDetailGroup2', because one already exists with this identification. 
at org.quartz.impl.jdbcjobstore.JobStoreSupport.storeJob(JobStoreSupport.java:1098) 
at org.quartz.impl.jdbcjobstore.JobStoreSupport$3.execute(JobStoreSupport.java:1047) 
at org.quartz.impl.jdbcjobstore.JobStoreSupport$40.execute(JobStoreSupport.java:3675) 
at org.quartz.impl.jdbcjobstore.JobStoreSupport.executeInNonManagedTXLock(JobStoreSupport.java:3747)
at org.quartz.impl.jdbcjobstore.JobStoreTX.executeInLock(JobStoreTX.java:93) 
at org.quartz.impl.jdbcjobstore.JobStoreSupport.executeInLock(JobStoreSupport.java:3671) 
at org.quartz.impl.jdbcjobstore.JobStoreSupport.storeJobAndTrigger(JobStoreSupport.java:1035) 
at org.quartz.core.QuartzScheduler.scheduleJob(QuartzScheduler.java:732) 
at org.quartz.impl.StdScheduler.scheduleJob(StdScheduler.java:265) 
at com.congxing.bi.modules.alarmwarning.quartz.SimpleScheduler.registDataJobToScheduler(SimpleScheduler.java:126)
at Test.main(Test.java:17) 

A1

    JobDetail jobDetail = new JobDetail(jobName, jobGroup, class1.getClass());

    // durable, 指明任务就算没有绑定Trigger仍保留在Quartz的JobStore中,
    jobDetail.setDurable(true);

    // 加入一个任务到Quartz框架中, 等待后面再绑定Trigger,
    // 此接口中的JobDetail的durable必须为true
    scheduler.addJob(jobDetail, false);

    Trigger trigger3 = TriggerUtils.makeMinutelyTrigger("trigger2", 10, SimpleTrigger.REPEAT_INDEFINITELY);

    // 使用scheduleJob(Trigger)加入的Trigger必须指明JobName与JobGroup
    trigger3.setJobName(jobName);
    trigger3.setJobGroup(jobGroup);
    scheduler.scheduleJob(trigger3); // 看这里

    Trigger trigger4 = TriggerUtils.makeSecondlyTrigger("trigger1", 5000, SimpleTrigger.REPEAT_INDEFINITELY);
    trigger4.setJobName(jobName);
    trigger4.setJobGroup(jobGroup);
    scheduler.scheduleJob(trigger4); // 看这里

A2

    JobDetail jobDetail = new JobDetail(jobName, jobGroup, class1.getClass());
    Trigger trigger3 = TriggerUtils.makeMinutelyTrigger("trigger2", 10, SimpleTrigger.REPEAT_INDEFINITELY);
    Trigger trigger4 = TriggerUtils.makeSecondlyTrigger("trigger1", 5000, SimpleTrigger.REPEAT_INDEFINITELY);

    // 下面这个接口其实可以理解为先addJob(JobDetail, false)
    // 再调用scheduleJob(Trigger), 此时Quartz会自动校正与设置trigger3的JobName与JobGroup属性
    scheduler.scheduleJob(jobDetail, trigger3);

    // 因为任务已在上一条语句中已加入, 所以不能再使用scheduleJob(JobDetail, Trigger)
    trigger4.setJobName(jobName);
    trigger4.setJobGroup(jobGroup);
    scheduler.scheduleJob(trigger4); // 看这里

总结：
    每个任务JobDetail可以绑定多个Trigger，但一个Trigger只能绑定一个任务，这种绑定关系由四种接口来执行：

• 1,
Java代码  收藏代码
Scheduler#scheduleJob(JobDetail, Trigger) 

    该接口的作用是在将任务加入Quartz的同时绑定一个Trigger，Quartz会在加入该任务后自动设置Trigger的JobName与JobGroup为该JobDetail的name与group；
• 2,
Java代码  收藏代码
Scheduler#scheduleJob(Trigger) 

    该接口的作用是将该Trigger绑定到其JobName与JobGroup指向的任务JobDetail。这时的name与group需要在Trigger绑定前由Quartz的使用者来设置与调用
• 3,
Java代码  收藏代码
Scheduler#rescheduleJob(String, String, Trigger) 

    替换一个指定的Trigger, 即解除指定Trigger与任务的绑定，并将新的Trigger与任务绑定，Quartz会自动调整新Trigger的JobName与JobGroup，而旧的Trigger将被移除
• 4,
Java代码  收藏代码
Scheduler#triggerJob(String, String) 
系列
    创建一个立即触发的Trigger，并将其与name与group指定的任务绑定

    JobDetail有个属性叫durable，表明该任务没有任何trigger绑定时仍保存在Quartz的JobStore中，默认为false。
    若JobDetail的durable属性为false，则任务将会从Quartz移除。