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Spring Quartz2 動態(tài)任務(wù)的實(shí)例詳解

 更新時間：2017年08月30日 09:27:10   作者：蕃薯耀  
這篇文章主要介紹了Spring Quartz2 動態(tài)任務(wù)的實(shí)例詳解的相關(guān)資料,Spring4整合quartz2.2.3簡單動態(tài)任務(wù)，需要的朋友可以參考下

Spring Quartz2 動態(tài)任務(wù)的實(shí)例詳解

此處使用的是Quartz中SimpleScheduleBuilder類，非CronScheduleBuilder，CronScheduleBuilder是Cron表達(dá)式的。具體請自行百度。

實(shí)現(xiàn)代碼： 

/** 
   * 新增任務(wù) 
   * @param scheduleJob 
   * @throws Exception 
   */ 
  @Override 
  @SuppressWarnings("unchecked") 
  public void addJobSimple(ScheduleJob scheduleJob) throws Exception{ 
    TriggerKey triggerKey = TriggerKey.triggerKey(scheduleJob.getJobName(), scheduleJob.getJobGroup()); 
    //任務(wù)觸發(fā) 
    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(wù)："+JasonUtils.Object2String(scheduleJob)); 
    }else { 
      this.updateJobCron(scheduleJob); 
    } 
  }

需要注意是的，當(dāng)定時任務(wù)只執(zhí)行一次時，就要仔細(xì)看代碼，如上面的簡單定時任務(wù)，剛開始是我這樣的：

simpleScheduleBuilder.withIntervalInSeconds(scheduleJob.getTimeValue());

結(jié)果只執(zhí)行一次，而我需要的是不斷循環(huán)執(zhí)行，最后改成：

simpleScheduleBuilder.withIntervalInSeconds(scheduleJob.getTimeValue()).repeatForever();

可以看出，后面多了個：repeatForever()，表示永遠(yuǎn)重復(fù)。 

如果是希望執(zhí)行多少次后不執(zhí)行，就使用：.withRepeatCount(triggerRepeatCount)，如下：

simpleScheduleBuilder.withIntervalInHours(scheduleJob.getTimeValue()).withRepeatCount(triggerRepeatCount);

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