Spring Quartz2 動態任務的實例詳解
此處使用的是Quartz中SimpleScheduleBuilder類，非CronScheduleBuilder，CronScheduleBuilder是Cron表達式的。具體請自行百度。
實現代碼：
/** * 新增任務 * @param scheduleJob * @throws Exception */ @Override @SuppressWarnings("unchecked") public void addJobSimple(ScheduleJob scheduleJob) throws Exception{ TriggerKey triggerKey = TriggerKey.triggerKey(scheduleJob.getJobName(), scheduleJob.getJobGroup()); //任務觸發 Trigger trigger = scheduler.getTrigger(triggerKey); if (null == trigger) { JobDetail jobDetail = JobBuilder.newJob((Class<? extends Job>) Class.forName(scheduleJob.getClazz())) .withIdentity(scheduleJob.getJobName(), scheduleJob.getJobGroup()).build(); jobDetail.getJobDataMap().put("scheduleJob", scheduleJob); SimpleScheduleBuilder simpleScheduleBuilder = SimpleScheduleBuilder.simpleSchedule(); if("秒".equals(scheduleJob.getTimeType()) || "second".equalsIgnoreCase(scheduleJob.getTimeType())){ simpleScheduleBuilder.withIntervalInSeconds(scheduleJob.getTimeValue()).repeatForever(); }else if("分".equals(scheduleJob.getTimeType()) || "分鐘".equals(scheduleJob.getTimeType()) || "minute".equalsIgnoreCase(scheduleJob.getTimeType())){ simpleScheduleBuilder.withIntervalInMinutes(scheduleJob.getTimeValue()).repeatForever(); }else if("時".equals(scheduleJob.getTimeType()) || "小時".equals(scheduleJob.getTimeType()) || "hour".equalsIgnoreCase(scheduleJob.getTimeType())){ simpleScheduleBuilder.withIntervalInHours(scheduleJob.getTimeValue()).repeatForever(); }else if("天".equals(scheduleJob.getTimeType()) || "date".equalsIgnoreCase(scheduleJob.getTimeType())){ simpleScheduleBuilder.withIntervalInHours(scheduleJob.getTimeValue()).repeatForever(); } ScheduleBuilder<SimpleTrigger> schedBuilder = simpleScheduleBuilder.withMisfireHandlingInstructionNextWithRemainingCount(); trigger =TriggerBuilder.newTrigger().withIdentity(scheduleJob.getJobName(), scheduleJob.getJobGroup()) .withSchedule(schedBuilder).build(); trigger = TriggerBuilder.newTrigger().withIdentity(scheduleJob.getJobName(), scheduleJob.getJobGroup()).withSchedule(schedBuilder).build(); scheduler.scheduleJob(jobDetail, trigger); log.info(CC.LOG_PREFIX + "新增簡單任務："+JasonUtils.Object2String(scheduleJob)); }else { this.updateJobCron(scheduleJob); } } 需要注意是的，當定時任務只執行一次時，就要仔細看代碼，如上面的簡單定時任務，剛開始是我這樣的：
simpleScheduleBuilder.withIntervalInSeconds(scheduleJob.getTimeValue());
結果只執行一次，而我需要的是不斷循環執行，最后改成：
simpleScheduleBuilder.withIntervalInSeconds(scheduleJob.getTimeValue()).repeatForever();
可以看出，后面多了個：repeatForever()，表示永遠重復。
如果是希望執行多少次后不執行，就使用：.withRepeatCount(triggerRepeatCount)，如下：
simpleScheduleBuilder.withIntervalInHours(scheduleJob.getTimeValue()).withRepeatCount(triggerRepeatCount);
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