java定时器 quartz

1.quartz  定时器包结构见附件


2.初始化定时器容器：
            // 初始化容器
SchedulerFactory sf = new StdSchedulerFactory();
         Scheduler scheduler = null;
3.创建触发器
      CronTrigger cronTrigger = new CronTrigger(job.getGroup());
     JobDetail jobDetail = new JobDetail(job.getName(),
                job.getGroup(), Class.forName(job.getClassName()));
     scheduler = sf.getScheduler();
     cronTrigger.setJobGroup(job.getGroup());
     cronTrigger.setJobName(job.getName());
4.定义执行规则
CronExpression cronExpression = new CronExpression(job.getCronExpression());
  cronTrigger.setCronExpression(cronExpression);
5.添加任务
    scheduler.addJob(jobDetail, true);
6.添加触发器
scheduler.scheduleJob(cronTrigger);
7.行启动、关闭等操作
scheduler.start();