xxl-job安装及使用

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。现已开放源代码并接入多家公司线上产品线，开箱即用。

admin下载及安装

下载

git clone https://github.com/xuxueli/xxl-job.git
cd xxl-job

切换分支

切换到最新分支,当前最新2.2.0

git checkout 2.2.0

修改文件

• 根据自身情况修改文件xxl-job-admin/src/main/resources/application.properties,主要修改数据库及email相关配置
• 修改文件xxl-job-admin/src/main/resources/logback.xml中的log.path

打包

mvn clean install package

数据库

将文件doc/db/tables_xxl_job.sql导入数据库

mysql -uroot -p < doc/db/tables_xxl_job.sql

运行

java -jar xxl-job-admin/target/xxl-job-admin-2.2.0.jar

查看

访问http://localhost:8080/xxl-job-admin
初始账号及密码admin,123456

与spring boot集成

添加依赖

gradle

implementation 'com.xuxueli:xxl-job-core:2.2.0'

maven

<dependency>
    <groupId>com.xuxueli</groupId>
    <artifactId>xxl-job-core</artifactId>
    <version>2.2.0</version>
</dependency>

添加配置

在application.properties中添加

### xxl-job admin address list, such as "http://address" or "http://address01,http://address02"
xxl.job.admin.addresses=http://127.0.0.1:8080/xxl-job-admin

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

### xxl-job executor appname
xxl.job.executor.appname=xxl-job-executor-sample
### 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=9999
### xxl-job executor log-path
xxl.job.executor.logpath=/data/applogs/xxl-job/jobhandler
### xxl-job executor log-retention-days
xxl.job.executor.logretentiondays=30

添加bean

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;

/**
 * xxl-job config
 *
 * @author xuxueli 2017-04-28
 */
@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：
     *          <dependency>
     *             <groupId>org.springframework.cloud</groupId>
     *             <artifactId>spring-cloud-commons</artifactId>
     *             <version>${version}</version>
     *         </dependency>
     *
     *      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();
     */


}

使用案例

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

import com.xxl.job.core.biz.model.ReturnT;
import com.xxl.job.core.handler.IJobHandler;
import com.xxl.job.core.handler.annotation.XxlJob;
import com.xxl.job.core.log.XxlJobLogger;
import com.xxl.job.core.util.ShardingUtil;
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、在Spring Bean实例中，开发Job方法，方式格式要求为 "public ReturnT<String> execute(String param)"
 * 2、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 "XxlJobLogger.log" 打印执行日志；
 *
 * @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(String param) throws Exception {
        XxlJobLogger.log("XXL-JOB, Hello World.");

        for (int i = 0; i < 5; i++) {
            XxlJobLogger.log("beat at:" + i);
            TimeUnit.SECONDS.sleep(2);
        }
        return ReturnT.SUCCESS;
    }


    /**
     * 2、分片广播任务
     */
    @XxlJob("shardingJobHandler")
    public ReturnT<String> shardingJobHandler(String param) throws Exception {

        // 分片参数
        ShardingUtil.ShardingVO shardingVO = ShardingUtil.getShardingVo();
        XxlJobLogger.log("分片参数：当前分片序号 = {}, 总分片数 = {}", shardingVO.getIndex(), shardingVO.getTotal());

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

        return ReturnT.SUCCESS;
    }


    /**
     * 3、命令行任务
     */
    @XxlJob("commandJobHandler")
    public ReturnT<String> commandJobHandler(String param) throws Exception {
        String command = param;
        int exitValue = -1;

        BufferedReader bufferedReader = null;
        try {
            // command process
            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) {
                XxlJobLogger.log(line);
            }

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

        if (exitValue == 0) {
            return IJobHandler.SUCCESS;
        } else {
            return new ReturnT<String>(IJobHandler.FAIL.getCode(), "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 ReturnT<String> httpJobHandler(String param) throws Exception {

        // param parse
        if (param==null || param.trim().length()==0) {
            XxlJobLogger.log("param["+ param +"] invalid.");
            return ReturnT.FAIL;
        }
        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) {
            XxlJobLogger.log("url["+ url +"] invalid.");
            return ReturnT.FAIL;
        }
        if (method==null || !Arrays.asList("GET", "POST").contains(method)) {
            XxlJobLogger.log("method["+ method +"] invalid.");
            return ReturnT.FAIL;
        }

        // 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(true);
            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 (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();

            XxlJobLogger.log(responseMsg);
            return ReturnT.SUCCESS;
        } catch (Exception e) {
            XxlJobLogger.log(e);
            return ReturnT.FAIL;
        } finally {
            try {
                if (bufferedReader != null) {
                    bufferedReader.close();
                }
                if (connection != null) {
                    connection.disconnect();
                }
            } catch (Exception e2) {
                XxlJobLogger.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 ReturnT<String> demoJobHandler2(String param) throws Exception {
        XxlJobLogger.log("XXL-JOB, Hello World.");
        return ReturnT.SUCCESS;
    }
    public void init(){
        logger.info("init");
    }
    public void destroy(){
        logger.info("destory");
    }


}

添加执行器

• 登录admin
• 点击左侧执行器管理–新增
• AppName填写xxl-job-executor-sample,名称根据实际情况输入,注册方式选择自动注册,保存.
• 刷新列表即可看到OnLine机器地址

添加任务

• 点击新增按钮
• 执行器选中xxl-job-executor-sample
• 根据实际情况填写,其中JobHandler填写@XxlJob的值,如案例中的demoJobHandler
• 保存