官網(wǎng)下載最新版本的xxl-job

idea打開項(xiàng)目：

image-20210713112153108

1.新建數(shù)據(jù)庫

根據(jù)項(xiàng)目中的數(shù)據(jù)庫腳本建好數(shù)據(jù)庫

image-20210713112509426

1.打開配置中心xxl-job-admin的配置文件application.properties

配置好jdbc和email垛叨，啟動(dòng)xxl-job-admin項(xiàng)目

### 調(diào)度中心JDBC鏈接：鏈接地址請保持和 2.1章節(jié) 所創(chuàng)建的調(diào)度數(shù)據(jù)庫的地址一致
spring.datasource.url=jdbc:mysql://127.0.0.1:3306/xxl_job?useUnicode=true&characterEncoding=UTF-8&autoReconnect=true&serverTimezone=Asia/Shanghai
spring.datasource.username=root
spring.datasource.password=root_pwd
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
### 報(bào)警郵箱
spring.mail.host=smtp.qq.com
spring.mail.port=25
spring.mail.username=xxx@qq.com
spring.mail.password=xxx
spring.mail.properties.mail.smtp.auth=true
spring.mail.properties.mail.smtp.starttls.enable=true
spring.mail.properties.mail.smtp.starttls.required=true
spring.mail.properties.mail.smtp.socketFactory.class=javax.net.ssl.SSLSocketFactory
### 調(diào)度中心通訊TOKEN [選填]：非空時(shí)啟用鲁沥；
xxl.job.accessToken=
### 調(diào)度中心國際化配置 [必填]： 默認(rèn)為 "zh_CN"/中文簡體, 可選范圍為 "zh_CN"/中文簡體, "zh_TC"/中文繁體 and "en"/英文羞反；
xxl.job.i18n=zh_CN
## 調(diào)度線程池最大線程配置【必填】
xxl.job.triggerpool.fast.max=200
xxl.job.triggerpool.slow.max=100
### 調(diào)度中心日志表數(shù)據(jù)保存天數(shù) [必填]：過期日志自動(dòng)清理弧满；限制大于等于7時(shí)生效调鬓，否則, 如-1褐筛，關(guān)閉自動(dòng)清理功能互广；
xxl.job.logretentiondays=30

2.部署項(xiàng)目

如果已經(jīng)正確進(jìn)行上述配置倦青，可將項(xiàng)目編譯打包部署。

調(diào)度中心訪問地址：http://localhost:8080/xxl-job-admin (該地址執(zhí)行器將會(huì)使用到芜茵，作為回調(diào)地址)

默認(rèn)登錄賬號(hào) “admin/123456”, 登錄后運(yùn)行界面如下圖所示：

image-20210713114155640

3.創(chuàng)建并運(yùn)行執(zhí)行器

項(xiàng)目自帶兩個(gè)版本的執(zhí)行器叙量，以springboot版本為例：

image-20210713114742600

啟動(dòng)執(zhí)行器:

如果報(bào)異常：Address already in use: bind，則修改一下端口號(hào)xxl.job.executor.port即可：

image-20210713114912735

執(zhí)行器列舉了五種執(zhí)行任務(wù)的方式：

image-20210713115218858

package com.xxl.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開發(fā)示例（Bean模式）
 *
 * 開發(fā)步驟：
 *      1九串、任務(wù)開發(fā)：在Spring Bean實(shí)例中绞佩，開發(fā)Job方法；
 *      2猪钮、注解配置：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")"品山，注解value值對應(yīng)的是調(diào)度中心新建任務(wù)的JobHandler屬性的值。
 *      3躬贡、執(zhí)行日志：需要通過 "XxlJobHelper.log" 打印執(zhí)行日志谆奥；
 *      4、任務(wù)結(jié)果：默認(rèn)任務(wù)結(jié)果為 "成功" 狀態(tài)拂玻，不需要主動(dòng)設(shè)置酸些；如有訴求，比如設(shè)置任務(wù)結(jié)果為失敗檐蚜，可以通過 "XxlJobHelper.handleFail/handleSuccess" 自主設(shè)置任務(wù)結(jié)果魄懂；
 *
 * @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(wù)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闯第、分片廣播任務(wù)
     */
    @XxlJob("shardingJobHandler")
    public void shardingJobHandler() throws Exception {

        // 分片參數(shù)
        int shardIndex = XxlJobHelper.getShardIndex();
        int shardTotal = XxlJobHelper.getShardTotal();

        XxlJobHelper.log("分片參數(shù)：當(dāng)前分片序號(hào) = {}, 總分片數(shù) = {}", shardIndex, shardTotal);

        // 業(yè)務(wù)邏輯
        for (int i = 0; i < shardTotal; i++) {
            if (i == shardIndex) {
                XxlJobHelper.log("第 {} 片, 命中分片開始處理", i);
            } else {
                XxlJobHelper.log("第 {} 片, 忽略", i);
            }
        }

    }


    /**
     * 3市栗、命令行任務(wù)
     */
    @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、跨平臺(tái)Http任務(wù)
     *  參數(shù)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咳短、生命周期任務(wù)示例：任務(wù)初始化與銷毀時(shí)填帽，支持自定義相關(guān)邏輯；
     */
    @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("destory");
    }


}

4.以“簡單任務(wù)示例（Bean模式）”為例咙好，在頁面添加任務(wù)：

image-20210713115457363

JobHandler與項(xiàng)目中注解@XxlJob("demoJobHandler")中的名稱一致：

image-20210713115617020

執(zhí)行該任務(wù)：

image-20210713115857191

可在“調(diào)度日志”中查看到執(zhí)行記錄：

image-20210713115951348

image-20210713120002050

也能查看具體的日志內(nèi)容：

image-20210713120103142

image-20210713120042984

可在“執(zhí)行器管理”中添加不同類型分執(zhí)行器：

image-20210713120248972