分布式作业 Elastic-Job 快速上手指南，从理论到实战一文搞定！

<dependency>
    <groupId>com.dangdang</groupId>
    <artifactId>elastic-job-lite-core</artifactId>
    <version>2.1.5</version>
</dependency>

<dependency>
    <groupId>org.apache.curator</groupId>
    <artifactId>curator-client</artifactId>
    <version>2.11.1</version>
</dependency>

public class MyElasticJob implements SimpleJob {
    @Override
    public void execute(ShardingContext context) {
        switch (context.getShardingItem()) {
            case 0: {
                System.out.println("MyElasticJob - 0");
                break;
            }
            case 1: {
                System.out.println("MyElasticJob - 1");
                break;
            }
            case 2: {
                System.out.println("MyElasticJob - 2");
                break;
            }
            default: {
                System.out.println("MyElasticJob - default");
            }
        }
    }
}

private static CoordinatorRegistryCenter createRegistryCenter() {
    CoordinatorRegistryCenter regCenter = new ZookeeperRegistryCenter(new ZookeeperConfiguration("192.168.10.31:2181,192.168.10.32:2181,192.168.10.33:2181", "elastic-job-demo"));
    regCenter.init();
    return regCenter;
}
private static LiteJobConfiguration createJobConfiguration() {
    // 定义作业核心配置
    JobCoreConfiguration simpleCoreConfig = JobCoreConfiguration.newBuilder("demoSimpleJob", "0/15 * * * * ?", 10).build();
    // 定义SIMPLE类型配置
    SimpleJobConfiguration simpleJobConfig = new SimpleJobConfiguration(simpleCoreConfig, MyElasticJob.class.getCanonicalName());
    // 定义Lite作业根配置
    LiteJobConfiguration simpleJobRootConfig = LiteJobConfiguration.newBuilder(simpleJobConfig).build();
}
@Bean
public CommandLineRunner commandLineRunner() {
    return (String... args) -> {
        new JobScheduler(createRegistryCenter(), createJobConfiguration()).init();
    };
}

MyElasticJob - 0
MyElasticJob - 1
MyElasticJob - 2
MyElasticJob - default
MyElasticJob - default
MyElasticJob - default
MyElasticJob - default
MyElasticJob - default
MyElasticJob - default
MyElasticJob - default

MyElasticJob - 0
MyElasticJob - 1
MyElasticJob - 2
MyElasticJob - default
MyElasticJob - default