springBoot整合RocketMQ

版本：

      JDK:1.8

     springBoot:1.5.10

     rocketMQ：4.2.0

pom 配置：

    

<parent>
  <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-starter-parent</artifactId>
  <version>1.5.10.RELEASE</version>
</parent>

<dependency>
    <groupId>org.apache.rocketmq</groupId>
    <artifactId>rocketmq-client</artifactId>
    <version>4.2.0</version>
</dependency>

application.properties  配置:

# 消費者的組名
apache.rocketmq.consumer.PushConsumer=PushConsumer
# 生產者的組名
apache.rocketmq.producer.producerGroup=Producer
# NameServer地址
apache.rocketmq.namesrvAddr=localhost:9876

java代碼：

    生產者

    

package test.config.rocketmq;

import org.apache.rocketmq.client.producer.DefaultMQProducer;
import org.apache.rocketmq.client.producer.SendResult;
import org.apache.rocketmq.common.message.Message;
import org.apache.rocketmq.remoting.common.RemotingHelper;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;
import org.springframework.util.StopWatch;

import javax.annotation.PostConstruct;


@Component
public class RocketMQClient {
    /**
     * 生產者的組名
     */
    @Value("${apache.rocketmq.producer.producerGroup}")
    private String producerGroup;

    /**
     * NameServer 地址
     */
    @Value("${apache.rocketmq.namesrvAddr}")
    private String namesrvAddr;

    @PostConstruct
    public void defaultMQProducer() {
        //生產者的組名
        DefaultMQProducer producer = new DefaultMQProducer(producerGroup);
        //指定NameServer地址，多個地址以 ; 隔開
        producer.setNamesrvAddr(namesrvAddr);
        producer.setVipChannelEnabled(false);
        try {
            /**
             * Producer對象在使用之前必須要調用start初始化，初始化一次即可
             * 注意：切記不可以在每次發送消息時，都調用start方法
             */
            producer.start();

            //創建一個消息實例，包含 topic、tag 和 消息體
            //如下：topic 爲 "TopicTest"，tag 爲 "push"
            Message message = new Message("TopicTest", "push", "發送消息----zhisheng-----".getBytes(RemotingHelper.DEFAULT_CHARSET));

            StopWatch stop = new StopWatch();
            stop.start();

            for (int i = 0; i < 1; i++) {
                SendResult result = producer.send(message);
                System.out.println("發送響應：MsgId:" + result.getMsgId() + "，發送狀態:" + result.getSendStatus());
            }
            stop.stop();
            System.out.println("----------------發送一萬條消息耗時：" + stop.getTotalTimeMillis());
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            producer.shutdown();
        }
    }
}

消費者：

    

import org.apache.rocketmq.client.consumer.DefaultMQPushConsumer;
import org.apache.rocketmq.client.consumer.listener.ConsumeConcurrentlyStatus;
import org.apache.rocketmq.client.consumer.listener.MessageListenerConcurrently;
import org.apache.rocketmq.common.consumer.ConsumeFromWhere;
import org.apache.rocketmq.common.message.MessageExt;
import org.apache.rocketmq.remoting.common.RemotingHelper;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;

import javax.annotation.PostConstruct;


@Component
public class RocketMQServer {
    /**
     * 消費者的組名
     */
    @Value("${apache.rocketmq.consumer.PushConsumer}")
    private String consumerGroup;

    /**
     * NameServer 地址
     */
    @Value("${apache.rocketmq.namesrvAddr}")
    private String namesrvAddr;

    @PostConstruct
    public void defaultMQPushConsumer() {
        //消費者的組名
        DefaultMQPushConsumer consumer = new DefaultMQPushConsumer(consumerGroup);

        //指定NameServer地址，多個地址以 ; 隔開
        consumer.setNamesrvAddr(namesrvAddr);
        consumer.setVipChannelEnabled(false);
        try {
            //訂閱PushTopic下Tag爲push的消息
            consumer.subscribe("TopicTest", "push");

            //設置Consumer第一次啓動是從隊列頭部開始消費還是隊列尾部開始消費
            //如果非第一次啓動，那麼按照上次消費的位置繼續消費
            consumer.setConsumeFromWhere(ConsumeFromWhere.CONSUME_FROM_FIRST_OFFSET);
            consumer.registerMessageListener((MessageListenerConcurrently) (list, context) -> {
                try {
                    for (MessageExt messageExt : list) {

                        System.out.println("messageExt: " + messageExt);//輸出消息內容

                        String messageBody = new String(messageExt.getBody(), RemotingHelper.DEFAULT_CHARSET);

                        System.out.println("消費響應：msgId : " + messageExt.getMsgId() + ",  msgBody : " + messageBody);//輸出消息內容
                    }
                } catch (Exception e) {
                    e.printStackTrace();
                    return ConsumeConcurrentlyStatus.RECONSUME_LATER; //稍後再試
                }
                return ConsumeConcurrentlyStatus.CONSUME_SUCCESS; //消費成功
            });
            consumer.start();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

掉坑總結：

    1.rocketMQ啓動時，命令不是  mqbroker -n 127.0.0.1:9876

         正確應該是：mqbroker -n 127.0.0.1:9876 butiautoCreateTopicEnable=true

         否則會拋出：No route info of this topic, TopicTest

  2.客戶端連接時拋出異常

        org.apache.rocketmq.client.exception.MQClientException: 

        Send [3] times, still failed, cost [3180]ms, Topic: TopicTest, BrokersSent: \

        [WIN-93CGO0S5G25, WIN-93CGO0S5G25, WIN-93CGO0S5G25]

        解決方式兩種

        1.producer.setVipChannelEnabled(false); 生產者和消費者添加這行代買。

        2.降rocketmq版本,降成3.2.6