依赖添加
<!-- https://mvnrepository.com/artifact/org.quartz-scheduler/quartz -->
<dependency>
<groupId>org.quartz-scheduler</groupId>
<artifactId>quartz</artifactId>
<version>2.3.0</version>
</dependency>
定时执行任务类
public class PrintWordsJob implements Job {
@Override
public void execute(JobExecutionContext jobExecutionContext) throws JobExecutionException {
String printTime = new SimpleDateFormat("yy-MM-dd HH-mm-ss").format(new Date());
System.out.println("PrintWordsJob start at:" + printTime + ", prints: Hello Job-" + new Random().nextInt(100));
}
}
定义定时任务的触发器与调度器
public class MyScheduler {
public static void main(String[] args) throws SchedulerException, InterruptedException {
// 1、创建调度器Scheduler
SchedulerFactory schedulerFactory = new StdSchedulerFactory();
Scheduler scheduler = schedulerFactory.getScheduler();
// 2、创建JobDetail实例,并与PrintWordsJob类绑定(Job执行内容)
JobDetail jobDetail = JobBuilder.newJob(PrintWordsJob.class)
.withIdentity("job1", "group1").build();
// 3、构建Trigger实例,每隔1s执行一次
Trigger trigger = TriggerBuilder.newTrigger().withIdentity("trigger1", "triggerGroup1")
.startNow()//立即生效
.withSchedule(SimpleScheduleBuilder.simpleSchedule().withIntervalInSeconds(1).repeatForever())
// .startAt(startDate) //开始启动的时间
// .endAt(endDate) //结束的时间
// .withSchedule(CronScheduleBuilder.cronSchedule("* 30 10 ? * 1/5 2018")) //可配置 cron 表达式
.build();//一直执行
//4、执行
scheduler.scheduleJob(jobDetail, trigger);
System.out.println("--------scheduler start ! ------------");
scheduler.start();
System.out.println("--------scheduler shutdown ! ------------");
}
}
remark: 可定义定时任务的启动时间,结束时间