springboot-定时任务

@SpringBootApplication
@EnableScheduling
public class Application {
    public static void main(String args[]) {
        SpringApplication.run(Application.class, args);
    }
}

@Component
public class DelayJob {

    SimpleDateFormat format = new SimpleDateFormat("yyyyMMddHHmmss");

    @Scheduled(fixedDelay=2000)
    public void testFixedDelay(){
        System.out.println("testFixedDelay begin at "+format.format(new Date()));
        try {
            Thread.sleep(1000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        System.out.println("testFixedDelay end at"+format.format(new Date()));
    }

    @Scheduled(fixedRate=2000)
    public void testFixedRate(){
        System.out.println("testFixedRate begin at "+format.format(new Date()));
        try {
            Thread.sleep(5000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        System.out.println("testFixedRate end at"+format.format(new Date()));
    }

    @Scheduled(cron="0/4 * * * * ?")
    public void testCronTab(){
        System.out.println("testCronTab begin at "+format.format(new Date()));
        try {
            Thread.sleep(5000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        System.out.println("testCronTab end at"+format.format(new Date()));
    }
}