一、下載Xxl-Job源代碼并導入本地并運行

1.使用Idea或Eclipse導入

2.執行sql腳本(紅色標記處)

3.運行xxl-job-admin(xxl-job后臺管理，主要方便管理各種各樣的任務)

注意:在運行之前，需要把2的sql腳本執行完畢，并修改數據庫連接池。

正常啟動，訪問地址為:http://localhost:8080/xxl-job-admin

效果圖，如下所示:

用戶名默認為admin

密碼為123456

輸入后，進入這個界面，如圖:

這樣就表示Xxl-Job成功運行了。確保運行沒問題后，就可以開始下一步。

二、添加執行器(Xxl-Job源代碼就一個Example，可以復用過來，你也可以選擇自己新建項目，新建項目可以在Xxl-Job基礎上，也可以放在其它項目中)

1.新建一個Maven項目，命名為blog-xxl-job。

2.導入Maven依賴

com.xuxueli

xxl-job-core

2.2.0

org.springframework.cloud

spring-cloud-starter-netflix-eureka-client

org.springframework.boot

spring-boot-starter-web

3.新建application.yml配置文件并添加如下內容

#eureka

eureka.client.serviceUrl.defaultZone=http://localhost:8761/eureka/

# web port

server.port=8081

# 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"

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=blog-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=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

可以不用eureka，這里我的項目中用到eureka所以增加該配置。

增加logback.xml配置:

logback

%d{HH:mm:ss.SSS} %contextName [%thread] %-5level %logger{36} - %msg%n

${log.path}

${log.path}.%d{yyyy-MM-dd}.zip

%date %level [%thread] %logger{36} [%file : %line] %msg%n

4.編寫Application類

package com.springcloud.blog.job.execute;

import org.springframework.boot.SpringApplication;

import org.springframework.boot.autoconfigure.SpringBootApplication;

import org.springframework.cloud.client.discovery.EnableDiscoveryClient;

import org.springframework.cloud.netflix.eureka.EnableEurekaClient;

@EnableEurekaClient

@EnableDiscoveryClient

@SpringBootApplication

public class BlogXxlJobExecutorApplication {

public static void main(String[] args) {

SpringApplication.run(BlogXxlJobExecutorApplication.class, args);

}

}

5.編寫Job執行器

package com.springcloud.blog.job.execute.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開發示例(Bean模式)

*

* 開發步驟：

* 1、在Spring Bean實例中，開發Job方法，方式格式要求為 "public ReturnT execute(String param)"

* 2、為Job方法添加注解 "@XxlJob(value="自定義jobhandler名稱", init = "JobHandler初始化方法", destroy = "JobHandler銷毀方法")"，注解value值對應的是調度中心新建任務的JobHandler屬性的值。

* 3、執行日志：需要通過 "XxlJobLogger.log" 打印執行日志；

*

* @author xuxueli 2019-12-11 21:52:51

*/

@Component

public class SampleXxlJob {

private static Logger logger = LoggerFactory.getLogger(SampleXxlJob.class);

/**

* 1、簡單任務示例(Bean模式)

*/

@XxlJob("demoJobHandler")

public ReturnT 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、分片廣播任務

*/

@XxlJob("shardingJobHandler")

public ReturnT shardingJobHandler(String param) throws Exception {

// 分片參數

ShardingUtil.ShardingVO shardingVO = ShardingUtil.getShardingVo();

XxlJobLogger.log("分片參數：當前分片序號 = {}, 總分片數 = {}", shardingVO.getIndex(), shardingVO.getTotal());

// 業務邏輯

for (int i = 0; i < shardingVO.getTotal(); i++) {

if (i == shardingVO.getIndex()) {

XxlJobLogger.log("第 {} 片, 命中分片開始處理", i);

} else {

XxlJobLogger.log("第 {} 片, 忽略", i);

}

}

return ReturnT.SUCCESS;

}

/**

* 3、命令行任務

*/

@XxlJob("commandJobHandler")

public ReturnT 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(IJobHandler.FAIL.getCode(), "command exit value(" + exitValue + ") is failed");

}

}

/**

* 4、跨平臺Http任務

* 參數示例：

* "url: http://www.baidu.com\n" +

* "method: get\n" +

* "data: content\n";

*/

@XxlJob("httpJobHandler")

public ReturnT 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、生命周期任務示例：任務初始化與銷毀時，支持自定義相關邏輯；

*/

@XxlJob(value = "demoJobHandler2", init = "init", destroy = "destroy")

public ReturnT 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");

}

}

6.增加XxlJobConfig配置類

package com.springcloud.blog.job.execute.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;

}

}

三、結合Xxl-Job后臺系統增加定時任務

1.配置執行器

執行器地址為(與blog-xxl-job中application.yml配置文件里的執行器地址需要保持一致，否則會注冊失敗，導致任務執行不了:

2.添加任務

3.任務執行成功的標志

四、為什么選擇Xxl-Job

當初選擇使用Xxl-Job有這么幾個原因:

第一、團隊里有好幾個人上一家公司或上上家公司用過。

第二、這個生態比較豐富且開源。

第三、確實非常容易上手且輕量化(輕量化的一個體現就是非侵入式)

到此這篇關于SpringBoot整合Xxl-Job的文章就介紹到這了,更多相關SpringBoot整合Xxl-Job內容請搜索腳本之家以前的文章或繼續瀏覽下面的相關文章希望大家以后多多支持腳本之家！

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