SpringBoot整合XXL分布式任务调度(图文详细)

SpringBoot整合XXL分布式任务调度

1 简介

1.1 官网地址

  • 官网地址: https://www.xuxueli.com/xxl-job/

1.2 概述

  • XXL-JOB是一个分布式任务调度平台,其核心设计目标是开发迅速、学习简单、轻量级、易扩展。

SpringBoot整合XXL分布式任务调度(图文详细)_第1张图片

1.3 功能特性

  • 1、简单:支持通过Web页面对任务进行CRUD操作,操作简单,一分钟上手;
  • 2、动态:支持动态修改任务状态、启动/停止任务,以及终止运行中任务,即时生效;
  • 3、调度中心HA(中心式):调度采用中心式设计,“调度中心”自研调度组件并支持集群部署,可保证调度中心HA;
  • 4、执行器HA(分布式):任务分布式执行,任务"执行器"支持集群部署,可保证任务执行HA;
  • 5、注册中心: 执行器会周期性自动注册任务, 调度中心将会自动发现注册的任务并触发执行。同时,也支持手动录入执行器地址;
  • 6、弹性扩容缩容:一旦有新执行器机器上线或者下线,下次调度时将会重新分配任务;
  • 7、触发策略:提供丰富的任务触发策略,包括:Cron触发、固定间隔触发、固定延时触发、API(事件)触发、人工触发、父子任务触发;
  • 8、调度过期策略:调度中心错过调度时间的补偿处理策略,包括:忽略、立即补偿触发一次等;
  • 9、阻塞处理策略:调度过于密集执行器来不及处理时的处理策略,策略包括:单机串行(默认)、丢弃后续调度、覆盖之前调度;
  • 10、任务超时控制:支持自定义任务超时时间,任务运行超时将会主动中断任务;
  • 11、任务失败重试:支持自定义任务失败重试次数,当任务失败时将会按照预设的失败重试次数主动进行重试;其中分片任务支持分片粒度的失败重试;
  • 12、…

2 JOB Server端部署

2.1 获取源代码

  • GITEE地址: https://gitee.com/xuxueli0323/xxl-job

2.1 导入SQL

  • 创建数据库,导入doc目录下的DB文件。

SpringBoot整合XXL分布式任务调度(图文详细)_第2张图片

2.3 修改SQL配置

  • 配置包含SQL链接地址,服务访问路径,端口等。

SpringBoot整合XXL分布式任务调度(图文详细)_第3张图片

2.4 运行/访问

SpringBoot整合XXL分布式任务调度(图文详细)_第4张图片
SpringBoot整合XXL分布式任务调度(图文详细)_第5张图片

3 JOB 业务端配置

3.1 添加POM


<dependency>
    <groupId>com.xuxueligroupId>
    <artifactId>xxl-job-coreartifactId>
    <version>${xxl-job.version}version>
dependency>

3.2 Yaml参数配置

xxl:
  job:
    # 此处设置的TOKEN 必须和服务端一致
    accessToken: 52BCCD82EE129B46
    admin:
      # JOB Server端的地址
      addresses: http://127.0.0.1:1200/xs-job
    executor:
      address: ''
      # 执行器名称
      appname: ${spring.application.name}
      ip: ''
      # 调度日志位置
      logpath: ${user.dir}/logs/${spring.profiles.active}/xs-job/jobhandler
      logretentiondays: 30
      # 调度通信端口
      port: 1215

3.3 编辑config配置

package com.xs.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;

/**
 * xxl-job config
 */
@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();
     */


}

3.4 Job调度示例

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

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 void demoJobHandler() throws Exception {
        XxlJobHelper.log("XXL-JOB, Hello World.");
		logger.info("XXL-JOB, Hello World. . .");
        for (int i = 0; i < 5; i++) {
            XxlJobHelper.log("beat at:" + i);
            logger.info("beat at:" + i);
            TimeUnit.SECONDS.sleep(2);
        }
        // default success
    }


    /**
     * 2、分片广播任务
     */
    @XxlJob("shardingJobHandler")
    public void shardingJobHandler() throws Exception {

        // 分片参数
        int shardIndex = XxlJobHelper.getShardIndex();
        int shardTotal = XxlJobHelper.getShardTotal();

        XxlJobHelper.log("分片参数:当前分片序号 = {}, 总分片数 = {}", shardIndex, shardTotal);

        // 业务逻辑
        for (int i = 0; i < shardTotal; i++) {
            if (i == shardIndex) {
                XxlJobHelper.log("第 {} 片, 命中分片开始处理", i);
            } else {
                XxlJobHelper.log("第 {} 片, 忽略", i);
            }
        }

    }


    /**
     * 3、命令行任务
     */
    @XxlJob("commandJobHandler")
    public void commandJobHandler() throws Exception {
        String command = XxlJobHelper.getJobParam();
        int exitValue = -1;

        BufferedReader bufferedReader = null;
        try {
            // command process
            ProcessBuilder processBuilder = new ProcessBuilder();
            processBuilder.command(command);
            processBuilder.redirectErrorStream(true);

            Process process = processBuilder.start();
            //Process process = Runtime.getRuntime().exec(command);

            BufferedInputStream bufferedInputStream = new BufferedInputStream(process.getInputStream());
            bufferedReader = new BufferedReader(new InputStreamReader(bufferedInputStream));

            // command log
            String line;
            while ((line = bufferedReader.readLine()) != null) {
                XxlJobHelper.log(line);
            }

            // command exit
            process.waitFor();
            exitValue = process.exitValue();
        } catch (Exception e) {
            XxlJobHelper.log(e);
        } finally {
            if (bufferedReader != null) {
                bufferedReader.close();
            }
        }

        if (exitValue == 0) {
            // default success
        } else {
            XxlJobHelper.handleFail("command exit value("+exitValue+") is failed");
        }

    }


    /**
     * 4、跨平台Http任务
     *  参数示例:
     *      "url: http://www.baidu.com\n" +
     *      "method: get\n" +
     *      "data: content\n";
     */
    @XxlJob("httpJobHandler")
    public void httpJobHandler() throws Exception {

        // param parse
        String param = XxlJobHelper.getJobParam();
        if (param==null || param.trim().length()==0) {
            XxlJobHelper.log("param["+ param +"] invalid.");

            XxlJobHelper.handleFail();
            return;
        }

        String[] httpParams = param.split("\n");
        String url = null;
        String method = null;
        String data = null;
        for (String httpParam: httpParams) {
            if (httpParam.startsWith("url:")) {
                url = httpParam.substring(httpParam.indexOf("url:") + 4).trim();
            }
            if (httpParam.startsWith("method:")) {
                method = httpParam.substring(httpParam.indexOf("method:") + 7).trim().toUpperCase();
            }
            if (httpParam.startsWith("data:")) {
                data = httpParam.substring(httpParam.indexOf("data:") + 5).trim();
            }
        }

        // param valid
        if (url==null || url.trim().length()==0) {
            XxlJobHelper.log("url["+ url +"] invalid.");

            XxlJobHelper.handleFail();
            return;
        }
        if (method==null || !Arrays.asList("GET", "POST").contains(method)) {
            XxlJobHelper.log("method["+ method +"] invalid.");

            XxlJobHelper.handleFail();
            return;
        }
        boolean isPostMethod = method.equals("POST");

        // request
        HttpURLConnection connection = null;
        BufferedReader bufferedReader = null;
        try {
            // connection
            URL realUrl = new URL(url);
            connection = (HttpURLConnection) realUrl.openConnection();

            // connection setting
            connection.setRequestMethod(method);
            connection.setDoOutput(isPostMethod);
            connection.setDoInput(true);
            connection.setUseCaches(false);
            connection.setReadTimeout(5 * 1000);
            connection.setConnectTimeout(3 * 1000);
            connection.setRequestProperty("connection", "Keep-Alive");
            connection.setRequestProperty("Content-Type", "application/json;charset=UTF-8");
            connection.setRequestProperty("Accept-Charset", "application/json;charset=UTF-8");

            // do connection
            connection.connect();

            // data
            if (isPostMethod && data!=null && data.trim().length()>0) {
                DataOutputStream dataOutputStream = new DataOutputStream(connection.getOutputStream());
                dataOutputStream.write(data.getBytes("UTF-8"));
                dataOutputStream.flush();
                dataOutputStream.close();
            }

            // valid StatusCode
            int statusCode = connection.getResponseCode();
            if (statusCode != 200) {
                throw new RuntimeException("Http Request StatusCode(" + statusCode + ") Invalid.");
            }

            // result
            bufferedReader = new BufferedReader(new InputStreamReader(connection.getInputStream(), "UTF-8"));
            StringBuilder result = new StringBuilder();
            String line;
            while ((line = bufferedReader.readLine()) != null) {
                result.append(line);
            }
            String responseMsg = result.toString();

            XxlJobHelper.log(responseMsg);

            return;
        } catch (Exception e) {
            XxlJobHelper.log(e);

            XxlJobHelper.handleFail();
            return;
        } finally {
            try {
                if (bufferedReader != null) {
                    bufferedReader.close();
                }
                if (connection != null) {
                    connection.disconnect();
                }
            } catch (Exception e2) {
                XxlJobHelper.log(e2);
            }
        }

    }

    /**
     * 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");
    }


}

3.5 操作演示

3.5.1 添加执行器

SpringBoot整合XXL分布式任务调度(图文详细)_第6张图片

3.5.2 添加Job任务

SpringBoot整合XXL分布式任务调度(图文详细)_第7张图片

3.5.3 执行任务

SpringBoot整合XXL分布式任务调度(图文详细)_第8张图片

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