官网：http://elasticjob.io/index_zh.html

• 引入架包

        <!-- 引入elastic-job-lite核心模块 -->
        <dependency>
            <groupId>com.dangdang</groupId>
            <artifactId>elastic-job-lite-core</artifactId>
            <version>2.1.5</version>
        </dependency>
        <!-- 使用Spring配置启动 -->
        <dependency>
            <groupId>com.dangdang</groupId>
            <artifactId>elastic-job-lite-spring</artifactId>
            <version>2.1.5</version>
        </dependency>

• 简单作业开发

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:reg="http://www.dangdang.com/schema/ddframe/reg" xmlns:job="http://www.dangdang.com/schema/ddframe/job"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
                        http://www.dangdang.com/schema/ddframe/reg http://www.dangdang.com/schema/ddframe/reg/reg.xsd
                        http://www.dangdang.com/schema/ddframe/job http://www.dangdang.com/schema/ddframe/job/job.xsd">
    <!--配置作业注册中心 -->
    <reg:zookeeper id="regCenter" server-lists="10.23.24.33:2181,10.23.24.34:2181"
          namespace="test-qa" base-sleep-time-milliseconds="1000" max-sleep-time-milliseconds="3000" max-retries="3"/>

    <!--简单定时任务-->
    <job:simple id="userSyncJobDemo" class="com.example.demo.job.simple.UserSyncSimpleJob" registry-center-ref="regCenter"
                sharding-total-count="4" cron="0 0/1 * * * ? " description="zjs-UserSyncSimpleJob" overwrite="true"/>

</beans>

public class UserSyncSimpleJob implements SimpleJob {
    @Override
    public void execute(ShardingContext shardingContext) {
        int a=shardingContext.getShardingItem();
        SimpleDateFormat sf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        System.out.println(Thread.currentThread().getId()+","+sf.format(new Date())+"@@@@@@@@@@@@@@@@@@@@@@@@@@@@@"+a);
    }
}

• Dataflow作业开发

    <job:dataflow id="userSyncDataFlowJob" class="com.example.demo.job.simple.UserSyncDataFlowJob"
                  registry-center-ref="regCenter"
                  sharding-total-count="4" cron="0 0/1 * * * ?" description="zjs-dataFlowDemo" overwrite="true"/>

public class UserSyncDataFlowJob implements DataflowJob<String> {

    @Override
    public List<String> fetchData(ShardingContext shardingContext) {
        //获取用户的数据列表，返回给processData
        return null;
    }

    @Override
    public void processData(ShardingContext shardingContext, List<String> list) {
        //对每条数据的处理逻辑
    }
}