Quartz

最新推荐文章于 2022-09-03 16:13:12 发布

原创最新推荐文章于 2022-09-03 16:13:12 发布 · 471 阅读

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本文介绍如何在SpringBoot项目中整合Quartz实现定时任务。通过详细配置POM文件，引入@EnableScheduling注解，并创建定时任务类PrintCurrentTimeTask，实现了每5秒执行一次的任务调度。

新建一个SpringBoot项目

完整的POM配置文件

<?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.fjx</groupId>
    <artifactId>hello-quartz</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>

    <name>hello-quartz</name>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.0.4.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-quartz</artifactId>
        </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>

启动项中引入@EnableScheduling 注解

package com.fjx.hello.quartz;

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

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

}

新建定时任务类PrintCurrentTimeTask

package com.fjx.hello.quartz.controller;/*
 @author 天赋吉运-Jason
 @DESCRIPTION 
 @create 2019-12-25
*/

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

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

@Component
public class PrintCurrentTimeTask {
    @Scheduled(cron="0/5 * * * * ? ")
    public void printCurrentTime(){
        System.out.println(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date()));
    }
}

每隔5秒运行一次