ElasticJob+Spring Boot简单使用

1、部署zookeeper集群

使用docker快速部署
zookeeper.yml

version: '3.1'

services:
  zoo1:
    image: zookeeper
    restart: always
    hostname: zoo1
    container_name: zoo1
    ports:
      - 2181:2181
    environment:
      ZOO_MY_ID: 1
      ZOO_SERVERS: server.1=zoo1:2888:3888;2181 server.2=zoo2:2888:3888;2181 server.3=zoo3:2888:3888;2181

  zoo2:
    image: zookeeper
    restart: always
    hostname: zoo2
    container_name: zoo2
    ports:
      - 2182:2181
    environment:
      ZOO_MY_ID: 2
      ZOO_SERVERS: server.1=zoo1:2888:3888;2181 server.2=zoo2:2888:3888;2181 server.3=zoo3:2888:3888;2181

  zoo3:
    image: zookeeper
    restart: always
    hostname: zoo3
    container_name: zoo3
    ports:
      - 2183:2181
    environment:
      ZOO_MY_ID: 3
      ZOO_SERVERS: server.1=zoo1:2888:3888;2181 server.2=zoo2:2888:3888;2181 server.3=zoo3:2888:3888;2181

执行

docker-compose -f zookeeper.yml up

验证

成功连上

2、新建一个Spring Boot项目

目录结构如下

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">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.6.7</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.example</groupId>
    <artifactId>elastic-job-test</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>elastic-job-test</name>
    <description>elastic-job-test</description>
    <properties>
        <java.version>1.8</java.version>
    </properties>
    <dependencies>

        <!-- https://mvnrepository.com/artifact/org.slf4j/slf4j-api -->
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
        </dependency>
        <!-- https://mvnrepository.com/artifact/ch.qos.logback/logback-classic -->
        <dependency>
            <groupId>ch.qos.logback</groupId>
            <artifactId>logback-classic</artifactId>
        </dependency>


        <!-- https://mvnrepository.com/artifact/org.apache.shardingsphere.elasticjob/elasticjob-lite-spring-boot-starter -->
        <dependency>
            <groupId>org.apache.shardingsphere.elasticjob</groupId>
            <artifactId>elasticjob-lite-spring-boot-starter</artifactId>
            <version>3.0.1</version>
        </dependency>

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

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

application.yml

elasticjob:
  regCenter:
    serverLists: localhost:2181
    namespace: elasticjob-lite-springboot
  jobs:
    simpleJob:
      elasticJobClass: com.example.elasticjobtest.job.TestJob
      cron: 0/30 0/1 * * * ?
      timeZone: GMT+08:00
      shardingTotalCount: 3
      shardingItemParameters: 0=Beijing,1=Shanghai,2=Guangzhou

TestJob.java

package com.example.elasticjobtest.job;

import lombok.extern.slf4j.Slf4j;
import org.apache.shardingsphere.elasticjob.api.ShardingContext;
import org.apache.shardingsphere.elasticjob.simple.job.SimpleJob;
import org.springframework.stereotype.Component;


@Slf4j
@Component
public class TestJob implements SimpleJob {
    @Override
    public void execute(ShardingContext context) {
        switch (context.getShardingItem()) {
            case 0:
                log.info("============0===========");
                log.info(context.toString());
                break;
            case 1:
                log.info("============1===========");
                log.info(context.toString());
                break;
            case 2:
                log.info("============2===========");
                log.info(context.toString());
                break;
            default:
                log.error("============{}===========",context.getShardingItem());
                break;
        }
    }
}

运行

勾选Allow parallel run可以同时运行多个Spring Boot项目

起1个程序的时候，3个分片都在接收到了

起2个程序


可以看到第2个程序把2个分片拿过去运行了

zookeeper已经注册上信息

官方文档连接