Quartz 一个JOB 配置多个Trigger时注意的问题

public class SimpleExample {

    
    public void run() throws Exception {
        Logger log = LoggerFactory.getLogger(SimpleExample.class);

        log.info("------- Initializing ----------------------");

        // First we must get a reference to a scheduler
        SchedulerFactory sf = new StdSchedulerFactory();
        StdScheduler sched = (StdScheduler)sf.getScheduler();

        log.info("------- Initialization Complete -----------");

        // computer a time that is on the next round minute
        Date runTime = evenMinuteDate(new Date());

        log.info("------- Scheduling Job  -------------------");

        // define the job and tie it to our HelloJob class
        JobDetail job = newJob(HelloJob.class)
            .withIdentity("job1", "group1")
            .storeDurably() 
            .build();
        
        // Trigger the job to run on the next round minute
        Trigger trigger = newTrigger()
            .withIdentity("trigger1", "group1")
            .startNow()
            .forJob(job)
            .withSchedule(SimpleScheduleBuilder.simpleSchedule().repeatForever().withIntervalInSeconds(2))
            .build();

        Trigger trigger2 = newTrigger()
                .withIdentity("trigger2", "group2")
                .startNow()
                .withSchedule(SimpleScheduleBuilder.simpleSchedule().repeatForever().withIntervalInSeconds(5))
                .forJob(job)
                .build();
        
        // Tell quartz to schedule the job using our trigger
        sched.addJob(job, true);
        sched.scheduleJob(trigger);
        sched.scheduleJob(trigger2);
        
        log.info(job.getKey() + " will run at: " + runTime);  

        // Start up the scheduler (nothing can actually run until the 
        // scheduler has been started)
        sched.start();

        log.info("------- Started Scheduler -----------------");

        // wait long enough so that the scheduler as an opportunity to 
        // run the job!
        log.info("------- Waiting 65 seconds... -------------");
        try {
            // wait 65 seconds to show job
            Thread.sleep(65L * 1000L); 
            // executing...
        } catch (Exception e) {
        }

        // shut down the scheduler
        log.info("------- Shutting Down ---------------------");
        sched.shutdown(true);
        log.info("------- Shutdown Complete -----------------");
    }

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

        SimpleExample example = new SimpleExample();
        example.run();
    }
}

需要注意构建Job的时候必须设置.storeDurably() 在添加Job到调度引擎当中的时候会抛出异常。

Exception in thread "main" org.quartz.SchedulerException: Jobs added with no trigger must be durable.
    at org.quartz.core.QuartzScheduler.addJob(QuartzScheduler.java:916)
    at org.quartz.impl.StdScheduler.addJob(StdScheduler.java:269)
    at com.gary.operation.jobdemo.demo1.SimpleExample.run(SimpleExample.java:88)
    at com.gary.operation.jobdemo.demo1.SimpleExample.main(SimpleExample.java:119)

然后将Job与Trigger加入引擎即可

sched.addJob(job, true);
sched.scheduleJob(trigger);
sched.scheduleJob(trigger2);

一个任务JOB可以添加多个Trigger 但是一个Trigger只能绑定一个JOB 这点需要注意