分布式任务调度平台:XXL-JOB

许雪里大佬的杰作 : 文档地址

• 个人感受： 开源、使用简单、开箱即用、大量公司在用

源码仓库地址 Release Download

https://github.com/xuxueli/xxl-job Download
http://gitee.com/xuxueli0323/xxl-job Download

快速入门

• 引入依赖 xxl-job-core
• 初始化数据库
• 配置调度器，执行器
• 部署调度器，执行器

0、引入依赖 xxl-job-core

jar包如何下载

<dependency>
    <groupId>com.xuxueligroupId>
    <artifactId>xxl-job-coreartifactId>
    <version>${最新稳定版本}version>
dependency>

1、初始化数据库

/xxl-job/doc/db/tables_xxl_job.sql

2、配置调度中心，执行服务

xxl-job-admin：调度中心
xxl-job-core：公共依赖
xxl-job-executor-samples：执行器Sample示例（选择合适的版本执行器，可直接使用，也可以参考其并将现有项目改造成执行器）
：xxl-job-executor-sample-springboot：Springboot版本，通过Springboot管理执行器，推荐这种方式；
：xxl-job-executor-sample-frameless：无框架版本；

调度中心配置文件

### web
server.servlet.context-path=/xxl-job-admin
server.port=8078
### actuator
management.server.servlet.context-path=/actuator
management.health.mail.enabled=false

### resources
spring.mvc.servlet.load-on-startup=0
spring.mvc.static-path-pattern=/static/**
spring.resources.static-locations=classpath:/static/

### freemarker
spring.freemarker.templateLoaderPath=classpath:/templates/
spring.freemarker.suffix=.ftl
spring.freemarker.charset=UTF-8
spring.freemarker.request-context-attribute=request
spring.freemarker.settings.number_format=0.##########

### mybatis
mybatis.mapper-locations=classpath:/mybatis-mapper/*Mapper.xml
#mybatis.type-aliases-package=com.xxl.job.admin.core.model

### xxl-job, datasource
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

### datasource-pool
spring.datasource.type=com.zaxxer.hikari.HikariDataSource
spring.datasource.hikari.minimum-idle=10
spring.datasource.hikari.maximum-pool-size=30
spring.datasource.hikari.auto-commit=true
spring.datasource.hikari.idle-timeout=30000
spring.datasource.hikari.pool-name=HikariCP
spring.datasource.hikari.max-lifetime=900000
spring.datasource.hikari.connection-timeout=10000
spring.datasource.hikari.connection-test-query=SELECT 1
spring.datasource.hikari.validation-timeout=1000

## xxl-job, email
spring.mail.host=smtp.126.com
#spring.mail.port=25
[email protected]
[email protected]
spring.mail.password=XXXXVJXXXXLV
spring.mail.properties.mail.smtp.auth=true
spring.mail.properties.mail.smtp.starttls.enable=true
spring.mail.properties.mail.smtp.starttls.required=true
spring.mail.properties.mail.smtp.socketFactory.class=javax.net.ssl.SSLSocketFactory

### xxl-job, access token
xxl.job.accessToken=default_token

### 登录账号，这个需要自己加
xxl.job.login.username=admin
xxl.job.login.password=123456

### xxl-job, i18n (default is zh_CN, and you can choose "zh_CN", "zh_TC" and "en")
xxl.job.i18n=zh_CN

## xxl-job, triggerpool max size
xxl.job.triggerpool.fast.max=200
xxl.job.triggerpool.slow.max=100

### xxl-job, log retention days
xxl.job.logretentiondays=7

执行器配置

# web port
server.port=8076
# no web
#spring.main.web-environment=false

# log config
logging.config=classpath:logback.xml

### xxl-job admin address list, such as "http://address" or "http://address01,http://address02"
# 重点配置需和调度中心一致
xxl.job.admin.addresses=http://127.0.0.1:8078/xxl-job-admin
### xxl-job, access token
xxl.job.accessToken=default_token

### xxl-job executor appname 执行器名称  页面配置需要，真正执行的服务
xxl.job.executor.appname=xxl-job-executor
### xxl-job executor registry-address: default use address to registry , otherwise use ip:port if address is null
xxl.job.executor.address=
### xxl-job executor server-info
xxl.job.executor.ip=
xxl.job.executor.port=9991
### xxl-job executor log-path
xxl.job.executor.logpath=D:\\test\\jobhandler
### xxl-job executor log-retention-days
xxl.job.executor.logretentiondays=7

执行器配置类

package com.xxl.job.executor.core.config;

import com.xxl.job.core.executor.impl.XxlJobSpringExecutor;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
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.accessToken}")
    private String accessToken;

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

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

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

    @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.setAddress(address);
        xxlJobSpringExecutor.setIp(ip);
        xxlJobSpringExecutor.setPort(port);
        xxlJobSpringExecutor.setAccessToken(accessToken);
        xxlJobSpringExecutor.setLogPath(logPath);
        xxlJobSpringExecutor.setLogRetentionDays(logRetentionDays);

        return xxlJobSpringExecutor;
    }

    /**
     * 针对多网卡、容器内部署等情况，可借助 "spring-cloud-commons" 提供的 "InetUtils" 组件灵活定制注册IP；
     *
     *      1、引入依赖：
     *          
     *             org.springframework.cloud
     *             spring-cloud-commons
     *             ${version}
     *         
     *
     *      2、配置文件，或者容器启动变量
     *          spring.cloud.inetutils.preferred-networks: 'xxx.xxx.xxx.'
     *
     *      3、获取IP
     *          String ip_ = inetUtils.findFirstNonLoopbackHostInfo().getIpAddress();
     */
}

执行器handler代码

package com.xxl.job.executor.service.jobhandler;

import com.xxl.job.core.biz.model.ReturnT;
import com.xxl.job.core.context.XxlJobHelper;
import com.xxl.job.core.handler.annotation.XxlJob;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;

import java.io.BufferedInputStream;
import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.Arrays;
import java.util.concurrent.TimeUnit;

/**
 * XxlJob开发示例（Bean模式）
 * 

 * 开发步骤：
 * 1、任务开发：在Spring Bean实例中，开发Job方法；
 * 2、注解配置：为Job方法添加注解 "@XxlJob(value="自定义jobhandler名称", init = "JobHandler初始化方法", destroy = "JobHandler销毁方法")"，注解value值对应的是调度中心新建任务的JobHandler属性的值。
 * 3、执行日志：需要通过 "XxlJobHelper.log" 打印执行日志；
 * 4、任务结果：默认任务结果为 "成功" 状态，不需要主动设置；如有诉求，比如设置任务结果为失败，可以通过 "XxlJobHelper.handleFail/handleSuccess" 自主设置任务结果；
 *
 * @author xuxueli 2019-12-11 21:52:51
 */
@Component
public class SampleXxlJob {
    private static Logger logger = LoggerFactory.getLogger(SampleXxlJob.class);


    /**
     * 1、简单任务示例（Bean模式）
     */
    @XxlJob("demoJobHandler")
    public ReturnT<String> demoJobHandler() throws Exception {
        XxlJobHelper.log("XXL-JOB, Hello World.");

        for (int i = 0; i < 5; i++) {
            XxlJobHelper.log("beat at:" + i);
            TimeUnit.SECONDS.sleep(2);
            System.out.println("9999+i---> " + i);
        }
        logger.info("xxl-job定时执行完成");
        return ReturnT.SUCCESS;
    }

    /**
     * 5、生命周期任务示例：任务初始化与销毁时，支持自定义相关逻辑；
     */
    @XxlJob(value = "demoJobHandler2", init = "init", destroy = "destroy")
    public void demoJobHandler2() throws Exception {
        XxlJobHelper.log("XXL-JOB, Hello World.");
    }

    public void init() {
        logger.info("init");
    }

    public void destroy() {
        logger.info("destroy");
    }
}

3、部署调度中心，执行服务

调度中心访问地址：http://localhost:8078/xxl-job-admin (该地址执行器将会使用到，作为回调地址)
默认登录账号 “admin/123456”, 登录后运行界面如下图所示。

---

其他

• 部署：集群部署时需要严格保证时间一致，可以统计器不同端口部署。

邮件服务器地址：

• QQ有邮箱或126邮箱等，spring.mail.password 均配置授权码
  126服务器地址：
  POP3服务器: pop.126.com
  SMTP服务器: smtp.126.com
  IMAP服务器: imap.126.com
  安全支持：
  POP3/SMTP/IMAP服务全部支持SSL连接

注意事项：