您现在的位置是：网站首页> 编程资料编程资料
Spring Quartz2 动态任务的实例详解_JSP编程_
2023-05-25
488人已围观
简介 Spring Quartz2 动态任务的实例详解_JSP编程_
Spring Quartz2 动态任务的实例详解
此处使用的是Quartz中SimpleScheduleBuilder类，非CronScheduleBuilder，CronScheduleBuilder是Cron表达式的。具体请自行百度。
实现代码：
/** * 新增任务 * @param scheduleJob * @throws Exception */ @Override @SuppressWarnings("unchecked") public void addJobSimple(ScheduleJob scheduleJob) throws Exception{ TriggerKey triggerKey = TriggerKey.triggerKey(scheduleJob.getJobName(), scheduleJob.getJobGroup()); //任务触发 Trigger trigger = scheduler.getTrigger(triggerKey); if (null == trigger) { JobDetail jobDetail = JobBuilder.newJob((Class) 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()) || "分钟".equals(scheduleJob.getTimeType()) || "minute".equalsIgnoreCase(scheduleJob.getTimeType())){ simpleScheduleBuilder.withIntervalInMinutes(scheduleJob.getTimeValue()).repeatForever(); }else if("时".equals(scheduleJob.getTimeType()) || "小时".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 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 + "新增简单任务："+JasonUtils.Object2String(scheduleJob)); }else { this.updateJobCron(scheduleJob); } } 需要注意是的，当定时任务只执行一次时，就要仔细看代码，如上面的简单定时任务，刚开始是我这样的：
simpleScheduleBuilder.withIntervalInSeconds(scheduleJob.getTimeValue());
结果只执行一次，而我需要的是不断循环执行，最后改成：
simpleScheduleBuilder.withIntervalInSeconds(scheduleJob.getTimeValue()).repeatForever();
可以看出，后面多了个：repeatForever()，表示永远重复。
如果是希望执行多少次后不执行，就使用：.withRepeatCount(triggerRepeatCount)，如下：
simpleScheduleBuilder.withIntervalInHours(scheduleJob.getTimeValue()).withRepeatCount(triggerRepeatCount);
如有疑问请留言或者到本站社区交流讨论，感谢阅读，希望能帮助到大家，谢谢大家对本站的支持！
您可能感兴趣的文章:
相关内容
- Spring quartz Job依赖注入使用详解_JSP编程_
- 浅谈jsp中的9个隐含对象_JSP编程_
- jsp 开发之struts2中s:select标签的使用_JSP编程_
- 详解Spring data 定义默认时间与日期的实例_JSP编程_
- 详解Spring Controller autowired Request变量_JSP编程_
- JSP 自定义标签实现数据字典的实例_JSP编程_
- JSP中通过Servlet 将服务器硬盘图片并展示到浏览器_JSP编程_
- 详解JSP 中Spring工作原理及其作用_JSP编程_
- Jsp敏感词过滤的示例代码_JSP编程_
- JSP 制作验证码的实例详解_JSP编程_
