Maven项目Spring整合RocketMQ消费者实现

前言

RocketMQ是阿里巴巴在2012年开源的分布式消息中间件，目前已经捐赠给Apache基金会，已经于2016年11月成为 Apache 孵化项目，相信RocketMQ的未来会发挥着越来越大的作用，将有更多的开发者因此受益。
本文仅对RocketMQ的简单实用做入门性介绍，不对RocketMQ的底层原理进行深入介绍，后续文章将对RocketMQ的原理做详细介绍。

1、RocketMQ的Maven依赖，pom.xml中引入jar包：

 

    com.alibaba.rocketmq
    rocketmq-client
    3.5.8


   com.alibaba.rocketmq
   rocketmq-all
   3.5.8
   pom
  

2、Spring bean 配置单例

3、Java源码

1）、RocketMqListener.java

package com.rocketMq.dao;
import com.alibaba.rocketmq.client.consumer.listener.ConsumeConcurrentlyContext;
import com.alibaba.rocketmq.common.message.MessageExt;
 /**
* 消费者监听接口，业务需要实现此接口并配置到Consumer中
* Created by 麦克劳林
*/
public interface RocketMqListener {
boolean RocketMqMessage(MessageExt ext,ConsumeConcurrentlyContext Context);
}

2)、

package com.rocketMq.dao;
import java.util.List;
import com.alibaba.rocketmq.client.consumer.listener.ConsumeConcurrentlyContext;
import com.alibaba.rocketmq.client.consumer.listener.ConsumeConcurrentlyStatus;
import com.alibaba.rocketmq.client.consumer.listener.MessageListenerConcurrently;
import com.alibaba.rocketmq.common.message.MessageExt;
/**
 * 监听wrapper，用于处理共通业务，并转发消息到业务监听中。
 * Created by 麦克劳林
 */
public class RocketMqWrapper implements MessageListenerConcurrently{
private RocketMqListener rocketMqListener;
public RocketMqListener getRocketMqMessageListener() {
    return rocketMqListener;
}
public void setRocketMqListener(RocketMqListener rocketMqListener) {
    this.rocketMqListener = rocketMqListener;
}
@Override
public ConsumeConcurrentlyStatus consumeMessage(List messagesList,ConsumeConcurrentlyContext consumeConcurrentlyContext) {  
        if(ext.getTags().equals("RFID")){
            if(rocketMqListener.RFIDMessage(ext, consumeConcurrentlyContext)){
                 return ConsumeConcurrentlyStatus.CONSUME_SUCCESS;
            } else{
                return ConsumeConcurrentlyStatus.RECONSUME_LATER;
            }   
    }
}

}