Spring Boot整合XXL-JOB分布式任务调度系统

一、获取XXL-JOB分布式任务调度系统项目源代码
1、项目地址：https://github.com/xuxueli/xxl-job
2、使用git克隆至本地：$ git clone https://github.com/xuxueli/xxl-job.git

二、整合
1、 在IDEA上创建一个Maven工程，命名为xxl-job-demo
① 点击 File => New => Project，新建项目，选择Maven

② 点击界面上的Next按钮，出现如下界面，输入项目名和项目保存位置，点击Finish按钮即可创建项目

③ 删除xxl-job-demo项目下的src目录，项目结构如下图

2、引入xxl-job源码中的xxl-job-admin模块至xxl-job-demo项目中
① 选中xxl-job-demo项目名，点击File => Project Structure，打开如下界面，导入xxl-job-admin模块

② 导入xxl-job-admin模块之后，引入依赖会报错，先不用管，将xxl-job-admin手动移入xxl-job-demo项目下，作为它的子模块

③ 在xxl-job-demo项目pom.xml添加如下依赖

<parent>
    <groupId>org.springframework.bootgroupId>
    <artifactId>spring-boot-starter-parentartifactId>
    <version>2.2.5.RELEASEversion>
    <relativePath/> 
parent>

<properties>
    <spring-boot.version>2.2.5.RELEASEspring-boot.version>
    <mybatis-spring-boot-starter.version>2.1.2mybatis-spring-boot-starter.version>
    <mysql-connector-java.version>8.0.20mysql-connector-java.version>
properties>

<modules>
    <module>xxl-job-adminmodule>
modules>

④ 修改xxl-job-admin项目pom.xml如下依赖

<parent>
	<groupId>com.xuxueligroupId>
	<artifactId>xxl-jobartifactId>
	<version>2.2.1-SNAPSHOTversion>
parent>

将如上依赖修改为：

<parent>
	<groupId>com.baigegroupId>
	<artifactId>xxl-job-demoartifactId>
	<version>1.0-SNAPSHOTversion>
parent>

将如下依赖的版本号换成2.2.0

<dependency>
	<groupId>com.xuxueligroupId>
	<artifactId>xxl-job-coreartifactId>
	<version>2.2.0version>
dependency>

⑤ 执行克隆项目中的xxl-job\doc\db\tables_xxl_job.sql脚本文件创建数据库
⑥ 修改xxl-job-admin模块下的application.properties文件中的数据源配置信息，将用户名、密码换成自己的

spring.datasource.url=jdbc:mysql://127.0.0.1:3306/xxl_job?useUnicode=true&characterEncoding=UTF-8&autoReconnect=true&serverTimezone=Asia/Shanghai
spring.datasource.username=root
spring.datasource.password=root
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver

⑦ 启动XxlJobAdminApplication，在浏览器中输入http://localhost:8080/xxl-job-admin，初次访问，会跳转到登录页面，默认用户名admin，密码123456

3、创建执行器xxl-job-executor模块
① 新建一个Maven工程，选中xxl-job-demo右击 => New => Module

② 在xxl-job-executor模块的pom.xml添加如下依赖

<dependencies>
    <dependency>
        <groupId>org.springframework.bootgroupId>
        <artifactId>spring-boot-starter-webartifactId>
    dependency>

    <dependency>
        <groupId>com.xuxueligroupId>
        <artifactId>xxl-job-coreartifactId>
        <version>2.2.0version>
    dependency>
dependencies>

③ 在Resource静态资源文件夹下创建application.properties配置文件，或者从xxl-job项目的xxl-job\xxl-job-executor-samples\xxl-job-executor-sample-springboot\src\main\resources文件夹进行复制

server.port=8081
logging.config=classpath:logback.xml

xxl.job.admin.addresses = http://127.0.0.1:8080/xxl-job-admin
xxl.job.executor.appname = xxl-job-executor
xxl.job.executor.port = 9999
xxl.job.executor.logpath = /data/applogs/xxl-job/jobhandler
xxl.job.executor.logretentiondays = 30

④ 在Resource静态资源文件夹下添加logback.xml文件，从xxl-job项目的xxl-job\xxl-job-executor-samples\xxl-job-executor-sample-springboot\src\main\resources文件夹进行复制

<configuration debug="false" scan="true" scanPeriod="1 seconds">

    <contextName>logbackcontextName>
    <property name="log.path" value="/data/applogs/xxl-job/xxl-job-executor-sample-springboot.log"/>

    <appender name="console" class="ch.qos.logback.core.ConsoleAppender">
        <encoder>
            <pattern>%d{HH:mm:ss.SSS} %contextName [%thread] %-5level %logger{36} - %msg%npattern>
        encoder>
    appender>

    <appender name="file" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <file>${log.path}file>
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            <fileNamePattern>${log.path}.%d{yyyy-MM-dd}.zipfileNamePattern>
        rollingPolicy>
        <encoder>
            <pattern>%date %level [%thread] %logger{36} [%file : %line] %msg%n
            pattern>
        encoder>
    appender>

    <root level="info">
        <appender-ref ref="console"/>
        <appender-ref ref="file"/>
    root>

configuration>

⑤ 创建XxlJobConfig.java配置类，可以从xxl-job项目的xxl-job\xxl-job-executor-samples\xxl-job-executor-sample-springboot\src\main\java\com\xxl\job\executor\core\config文件夹下进行复制

package com.baige.config;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.xxl.job.core.executor.impl.XxlJobSpringExecutor;

import org.springframework.context.annotation.Bean;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Configuration;

@Configuration
public class XxlJobConfig {
     
    private Logger logger = LoggerFactory.getLogger(XxlJobConfig.class);

    @Value("${xxl.job.admin.addresses}")
    private String adminAddresses;

    @Value("${xxl.job.executor.appname}")
    private String appName;

    @Value("${xxl.job.executor.port}")
    private int port;

    @Value("${xxl.job.executor.logpath}")
    private String logPath;

    @Value("${xxl.job.executor.logretentiondays}")
    private int logRetentionDays;

    @Bean
    public XxlJobSpringExecutor xxlJobExecutor() {
     
        logger.info(">>>>>>>>>>> xxl-job config init.");
        XxlJobSpringExecutor xxlJobSpringExecutor = new XxlJobSpringExecutor();
        xxlJobSpringExecutor.setAdminAddresses(adminAddresses);
        xxlJobSpringExecutor.setAppname(appName);
        xxlJobSpringExecutor.setPort(port);
        xxlJobSpringExecutor.setLogPath(logPath);
        xxlJobSpringExecutor.setLogRetentionDays(logRetentionDays);

        return xxlJobSpringExecutor;
    }
}

⑥ 创建HelloHandler.java执行器类，可以从xxl-job项目的xxl-job\xxl-job-executor-samples\xxl-job-executor-sample-springboot\src\main\java\com\xxl\job\executor\service\jobhandler文件夹下进行复制

package com.baige.handler;

import com.xxl.job.core.log.XxlJobLogger;
import com.xxl.job.core.biz.model.ReturnT;
import org.springframework.stereotype.Component;
import com.xxl.job.core.handler.annotation.XxlJob;

@Component
public class HelloHandler {
     
    @XxlJob("helloHandler")
    public ReturnT<String> demoJobHandler(String param) throws Exception {
     
        System.out.println("Hello,World");
        XxlJobLogger.log("XXL-JOB, Hello World.");
        return ReturnT.SUCCESS;
    }
}

⑦ 创建执行器的启动类XxlJobExecutorApplication.java

package com.baige;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

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

⑧ 启动执行器

4、在xxl-job-admin后台管理的web界面，配置执行器，进行测试
① 新增执行器，如下图所示

可能配置好执行器注册不上，重启xxl-job-executor模块的启动类，刷新页面，即可注册上

② 新增任务

③ 启动任务


④ 在IDEA控制台中查看打印信息

至此，spring boot整合xxl-job分布式任务调度系统完成。