xxl-job 分布式任务调度基本使用

xxl-job

是一个分布式任务调度平台，使用非常方便。
官网：https://gitee.com/xuxueli0323/xxl-job
工作原理类似于nacos 执行器注册到调度中心调度中心分配任务执行器执行任务

docker-compose 配置

version: '3'
services:xxl-job:image: xuxueli/xxl-job-admin:2.3.1container_name: xxl-jobenvironment:PARAMS: '--server.port=8800--server.servlet.context-path=/xxl-job-admin--spring.datasource.url=jdbc:mysql://192.168.56.200:3306/xxl_job?useUnicode=true&characterEncoding=UTF-8&autoReconnect=true&serverTimezone=Asia/Shanghai--spring.datasource.username=root--spring.datasource.password=123456--xxl.job.accessToken=jhjxxljob'volumes:- ./data/logs:/home/xxl-job/applogsports:- 49170:8800restart: always

springboot 集成

pom

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

config bean

package com.jhj.media.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;@Beanpublic 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();*/}

bootstrap.yml

xxl:job:admin:addresses: http://192.168.56.200:49170/xxl-job-adminexecutor:appname: testHandleraddress:ip:port: 9999logpath: /data/applogs/xxl-job/jobhandlerlogretentiondays: 30accessToken: jhjxxljob

使用

执行器
在这里插入图片描述

任务
在这里插入图片描述
任务中的高级配置原理和线程池类似，路由策略和nginx，springcloud gateway等类似，不过多了一个分片广播，意思就是将所有的任务都广播到每一个执行器，需要自己在执行器手动进行判断哪些分片该哪些执行器执行。

package com.jhj.media.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.");for (int i = 0; i < 5; i++) {XxlJobHelper.log("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();logger.info("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) {logger.info("第 {} 片, 命中分片开始处理", i);} else {logger.info("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 processProcessBuilder 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 logString line;while ((line = bufferedReader.readLine()) != null) {XxlJobHelper.log(line);}// command exitprocess.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 parseString 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 validif (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");// requestHttpURLConnection connection = null;BufferedReader bufferedReader = null;try {// connectionURL realUrl = new URL(url);connection = (HttpURLConnection) realUrl.openConnection();// connection settingconnection.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 connectionconnection.connect();// dataif (isPostMethod && data!=null && data.trim().length()>0) {DataOutputStream dataOutputStream = new DataOutputStream(connection.getOutputStream());dataOutputStream.write(data.getBytes("UTF-8"));dataOutputStream.flush();dataOutputStream.close();}// valid StatusCodeint statusCode = connection.getResponseCode();if (statusCode != 200) {throw new RuntimeException("Http Request StatusCode(" + statusCode + ") Invalid.");}// resultbufferedReader = 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");}}