SpringBoot笔记系列：（十七）创建定时任务

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SpringBoot中创建定时任务

1. 在Spring Boot的启动类中加入@EnableScheduling注解，启用定时任务的配置

   package top.pcstar.springboothelloworld;
   
   import org.springframework.boot.SpringApplication;
   import org.springframework.boot.autoconfigure.SpringBootApplication;
   import org.springframework.scheduling.annotation.EnableScheduling;
   
   /**
    * @Author: PanChao
    * @Description: 启动类
    * @Date: Created in 12:56 2018/5/29
    */
   //@EnableAutoConfiguration
   //@ComponentScan(basePackages = "top.pcstar.springboothelloworld.controller")
   //@EntityScan("top.pcstar.springboothelloworld.entity")
   //@EnableJpaRepositories("top.pcstar.springboothelloworld.dao")
   @SpringBootApplication
   @EnableScheduling
   public class App {
       public static void main(String[] args) {
           SpringApplication.run(App.class, args);
       }
   }
   

2. 在任务方法上添加@Scheduled注解

   package top.pcstar.springboothelloworld.task;
   
   import org.springframework.scheduling.annotation.Scheduled;
   import org.springframework.stereotype.Component;
   
   import java.text.SimpleDateFormat;
   import java.util.Date;
   
   /**
    * @Author: PanChao
    * @Description:
    * @Date: Created in 19:29 2018/7/22
    */
   @Component
   public class ScheduledTasks {
       @Scheduled(fixedRate = 5000)
       public void printCurrentTime() {
           SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
           System.out.println("现在时间：" + simpleDateFormat.format(new Date()));
       }
   }
   

SpringBoot笔记系列目录