SimpleTrigger simpleTrigger = TriggerBuilder.newTrigger()
                            .withIdentity("trigger3", "group1")
                            .startAt(new Date())
                            .withSchedule(
                                    SimpleScheduleBuilder.simpleSchedule()
                                            .withIntervalInSeconds(3)
                                            .withRepeatCount(0))//重复执行的次数，因为加入任务的时候马上执行了，所以不需要重复，否则会多一次。
                            .build();
                    scheduler.scheduleJob(jobDetail, simpleTrigger);