王尘宇

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四、SpringBoot集成xxl-job

源码上有示例代码，在xxl-job-executor-samples目录下
pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.3.2.RELEASE</version>
        <relativePath/>
    </parent>

    <modelVersion>4.0.0</modelVersion>
    <groupId>com.llh.xxl.job</groupId>
    <artifactId>spring-boot-xxl-job</artifactId>
    <version>1.0.0</version>
    <name>spring-boot-xxl-job</name>

    <properties>
        <java.version>1.8</java.version>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <spring-boot.version>2.3.7.RELEASE</spring-boot.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>com.xuxueli</groupId>
            <artifactId>xxl-job-core</artifactId>
            <version>2.3.0</version>
        </dependency>

        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.18.20</version>
            <scope>provided</scope>
        </dependency>
    </dependencies>

</project>

---

application.properties

server.port=8081

xxl.job.admin.addresses=http://127.0.0.1:8080/xxl-job-admin

xxl.job.accessToken=

xxl.job.executor.appname=xxl-job-executor-sample

xxl.job.executor.address=

xxl.job.executor.ip=

xxl.job.executor.port=9999

xxl.job.executor.logpath=/data/applogs/xxl-job/jobhandler

xxl.job.executor.logretentiondays=30

---

XxlJobConfig类

package com.llh.xxl.job.config;

import com.xxl.job.core.executor.impl.XxlJobSpringExecutor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

@Configuration
@Slf4j
public class XxlJobConfig {

    @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() {
        log.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;
    }
}

---

SampleXxlJob类

package com.llh.xxl.job.job;

import com.xxl.job.core.context.XxlJobHelper;
import com.xxl.job.core.handler.annotation.XxlJob;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Component;

import java.time.LocalDateTime;
import java.util.concurrent.TimeUnit;

@Component
@Slf4j
public class SampleXxlJob {
    /**
     * 1、简单任务示例（Bean模式）
     */
    @XxlJob("demoJobHandler")
    public void demoJobHandler() throws Exception {
        log.info("开始执行任务，{}", LocalDateTime.now());

        // 模拟执行任务，比如查询所有用户，给用户发送短信
        for (int i = 0; i < 5; i++) {
            log.info("执行任务： " + i);

            // 有关数据库等操作一定要延迟，否则数据库连接资源会瞬间被占满
            TimeUnit.SECONDS.sleep(1);
        }
    }

    /**
     * 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();

        log.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) {
                log.info("第 {} 片, 命中分片开始处理", i);
            } else {
                log.info("第 {} 片, 忽略", i);
            }
        }

    }
}

五、测试任务调度

启动Java项目，然后在xxl-job后台新增任务管理，内容如下，主要是对应JobHandler和代码中的注解一致。

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– Cron可以自己去学一下，很简单

• 高级配置里面可以设置路由策略

---

启动任务后可以在后台看到任务调度日志，这里是每10秒执行一次。

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六、结语

有问题可以在评论区留言，我们一起进步！

源码地址：https://github.com/tigerleeli/xiaohuge-blog/tree/master/spring-boot-xxl-job

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