Quartz的触发器使用

触发器是quartz赖以触发任务的关键组件，它的使用直接关系到Job的执行。

package com.wqw.study.quartz.practice;

import static org.quartz.DateBuilder.evenMinuteDate;
import static org.quartz.JobBuilder.newJob;
import static org.quartz.TriggerBuilder.newTrigger;
import static org.quartz.SimpleScheduleBuilder.simpleSchedule;
import static org.quartz.DateBuilder.futureDate;

public class TriggerUse {

    Logger log = LoggerFactory.getLogger(TriggerUse.class);

    public static void main(String[] args) throws Exception {

        //创建一个可用的scheduler 对象
        SchedulerFactory schedulerFactory = new StdSchedulerFactory();
        Scheduler scheduler = schedulerFactory.getScheduler();

        Date runTime = evenMinuteDate(new Date());

        JobDetail job = newJob(BaseJob.class).withIdentity("job1", "group1").build();

        //trigger的使用：直接触发不重复
        Trigger trigger = newTrigger().withIdentity("trigger1", "group1").startAt(runTime).build();

        scheduler.scheduleJob(job,trigger);

        runTime = evenMinuteDate(new Date());

        //trigger的使用：直接触发不重复
        SimpleTrigger strigger = (SimpleTrigger) newTrigger().withIdentity("trigger2", "group1").startAt(runTime).build();
        job = newJob(BaseJob.class).withIdentity("job2", "group1").build();

        scheduler.scheduleJob(job,strigger);

        runTime = evenMinuteDate(new Date());

        //trigger的使用：开始时间执行后，按照每10秒执行一次，重复10次
        job = newJob(BaseJob.class).withIdentity("job3", "group1").build();
        strigger = (SimpleTrigger) newTrigger().withIdentity("trigger3", "group1").startAt(runTime)
                .withSchedule(simpleSchedule()
                        .withIntervalInSeconds(10)
                        .withRepeatCount(10)).build();

        scheduler.scheduleJob(job,strigger);

        scheduler.start();

        TimeUnit.MINUTES.sleep(2);

        //trigger的使用：2分钟以后开始触发，仅执行一次.
        job = newJob(BaseJob.class).withIdentity("job4", "group1").build();
        strigger = (SimpleTrigger) newTrigger() 
                .withIdentity("trigger4", "group1")
                .startAt(futureDate(2, IntervalUnit.MINUTE)).build();

        scheduler.scheduleJob(job,strigger);



    }

}

注意：
可见scheduler启动之后，仍可以添加新的调度任务的。