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。
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。
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。
2.4 运行/访问
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
3.5.2 添加Job任务
3.5.3 执行任务
