Spring Boot 定时调度任务 @Scheduled

首先需要在启动类上注解 @EnableScheduling

@SpringBootApplication 
@EnableScheduling
public class TestApplication {

	public static void main(String[] args) {
		SpringApplication.run(TestApplication.class, args);
	}
}

 任务类：

package com.forwy.test.Tasks;

import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.stereotype.Component;

import java.text.SimpleDateFormat;
import java.util.Date;

@Component
public class TestJobs {
    public final static long SECOND = 1 * 1000;
    SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");

    /**
     * 固定等待时间
     * @throws InterruptedException
     * @auth yong.wu
     */
    @Scheduled(fixedDelay = SECOND * 2)
    public void fixedDelayTask() throws InterruptedException {
        System.out.println("---------------------");
        System.out.println("---fixed delay task--");
        System.out.println("| "+sdf.format(new Date())+" |");
        System.out.println("---------------------");
    }

    /**
     * 固定时间间隔
     * @auth yong.wu
     */
    @Scheduled(fixedRate = SECOND * 4)
    public void fixedRateTask() {
        System.out.println("^^^^^^^^^^^^^^^^^^^^^");
        System.out.println("---fixed rate task---");
        System.out.println("| "+sdf.format(new Date())+" |");
        System.out.println("^^^^^^^^^^^^^^^^^^^^^");
    }

    /**
     * corn 表达式
     * @auth yong.wu
     */
    @Scheduled(cron = "0/4 * * * * ?")
    public void cronTask() {
        System.out.println("********************");
        System.out.println("---corn rate task---");
        System.out.println("| "+sdf.format(new Date())+" |");
        System.out.println("********************");
    }


}

结果：

---fixed delay task--
| 2017-08-25 14:26:47 |
---------------------
********************
---corn rate task---
| 2017-08-25 14:26:48 |
********************
^^^^^^^^^^^^^^^^^^^^^
---fixed rate task---
| 2017-08-25 14:26:49 |
^^^^^^^^^^^^^^^^^^^^^
---------------------
---fixed delay task--
| 2017-08-25 14:26:49 |
---------------------
---------------------
---fixed delay task--
| 2017-08-25 14:26:51 |
---------------------
********************

.
.
.