springboot schedule

程序员文章站 2024-02-29 12:01:34

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1.在application.properties配置文件中添加

#延迟5秒

jobs.fixedDelay=5000

#每隔2秒
jobs.cron=*/2 * * * * ?

2.新建一个ScheduleTask类

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

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

@Component
public class ScheduleTask {

  private static final SimpleDateFormat dateFormat = new SimpleDateFormat("HH:mm:ss");

  @Scheduled(fixedDelayString = "${jobs.fixedDelay}")
  public void getTask1() {
    System.out.println("延迟5秒，当前时间：" + dateFormat.format(new Date()));
  }

  @Scheduled(cron = "${jobs.cron}")
  public void getTask2() {
    System.out.println("每隔2秒执行一次，当前时间：" + dateFormat.format(new Date()));
  }
}

3.在springboot启动类中添加启动schedule注解，如下

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.scheduling.annotation.EnableScheduling;

 @SpringBootApplication
 @EnableScheduling
public class SpringbootApplication {
  
 public static void main(String[] args) {
     SpringApplication app=new SpringApplication(SpringbootApplication.class);
	 app.run(args);
  
 }
}

4.启动之后效果如下

springboot schedule