我正在使用 Quartz 框架来安排作业。我想每 2 秒重复一次操作。但它似乎只执行一次。我怎样才能让它永远运行!
public static void main(String[] args) throws InterruptedException {
    //ChangingRatesSimulator.doSimulation();
    try {
        // Grab the Scheduler instance from the Factory 
        Scheduler scheduler = StdSchedulerFactory.getDefaultScheduler();
        // and start it off
        scheduler.start();
        JobDetail job = newJob(ChangingRatesSimulator.class).withIdentity("job1","group1").build();
        // compute a time that is on the next round minute
        Date runTime =  evenSecondDate(new Date());
        // Trigger the job to run on the next round minute
        Trigger trigger = newTrigger()
            .withIdentity("trigger1", "group1")
            .startAt(runTime)
            .withSchedule(simpleSchedule()
                    .withIntervalInSeconds(5)
                    .repeatForever())
            .build();
        scheduler.scheduleJob(job, trigger);
        scheduler.start();
    } catch (SchedulerException se) {
        se.printStackTrace();
    }
}