项目中很多时候会使用到定时任务，这篇文章介绍一下springboot整合定时任务。
springboot整合定时任务其实就两点，
1.创建一个能被定时任务类，方法上加入@Scheduled注解
2.在启动类application上加入@EnableScheduling注解
代码如下，pom文件我只加入了devtools，其实不加入也可以
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.dalaoyang</groupId>
<artifactId>springboot_scheduled</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>springboot_scheduled</name>
<description>springboot_scheduled</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.9.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
application类代码如下：
package com.dalaoyang;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.scheduling.annotation.EnableScheduling;
@SpringBootApplication
@EnableScheduling
public class SpringbootScheduledApplication {
public static void main(String[] args) {
SpringApplication.run(SpringbootScheduledApplication.class, args);
}
}
定时任务类TestTimer
package com.dalaoyang.timer;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.stereotype.Component;
import java.util.Date;
/**
* @author dalaoyang
* @Description
* @project springboot_learn
* @package com.dalaoyang.timer
* @email yangyang@dalaoyang.cn
* @date 2018/4/7
*/
@Component
public class TestTimer {
@Scheduled(cron = "0/1 * * * * ?")
private void test() {
System.out.println("执行定时任务的时间是："+new Date());
}
}
到这里启动项目，可以看到控制台如下
需要注意的是@Scheduled(cron = “0/1 * * * * ?”)中cron的值根据自己实际需要去写，如果需要可以去下面的网
