rocketMq-demo

rocketMq-demo

• 前言
• jar包預備
• demo

---

前言

前面一面博文寫了RocketMq的配置安裝，這裏記錄一下自己的demo。

jar包預備

我用的maven來管理項目，加入maven依賴：

<dependency>
  <groupId>com.alibaba.rocketmq</groupId>
  <artifactId>rocketmq-client</artifactId>
  <version>3.2.6</version>
</dependency>

Producer

  package com.yyp.test;

    /**
     * Created by yyp on 15-12-18.
     */

    import com.alibaba.rocketmq.common.message.Message;

    import com.alibaba.rocketmq.client.producer.DefaultMQProducer;
    import com.alibaba.rocketmq.client.producer.SendResult;

    public class Producer {
    public static void main(String[] args) {
    DefaultMQProducer producer = new DefaultMQProducer("Producer");
    producer.setNamesrvAddr("192.168.0.1:9876");
    try {
    producer.start();
    int i = 0;

    while (true) {
    i++;
    Message msg = new Message("PushTopic",
    "push",
    "1",
    ("Just for yyp" + i).getBytes());
    SendResult result = producer.send(msg);

       /* msg = new Message("PushTopic",
    "push",
    "2",
    "Just for test.".getBytes());

    result = producer.send(msg);
    System.out.println("id:" + result.getMsgId() +
    " result:" + result.getSendStatus());*/

    msg = new Message("PullTopic",
    "pull",
    "1",
    "Just for test.".getBytes());
    result = producer.send(msg);
    System.out.println("id:" + result.getMsgId() +
    " result:" + result.getSendStatus());
    if (i % 10 == 0) {
    Thread.sleep(20000);
    }
    }

    } catch (Exception e) {
    e.printStackTrace();
    } finally {
    // producer.shutdown();
    }
    }
    }

Consumer

    package com.yyp.test;

    /**
     * Created by yyp on 15-12-18.
     */

    import com.alibaba.rocketmq.client.consumer.DefaultMQPushConsumer;
    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.client.producer.DefaultMQProducer;
    import com.alibaba.rocketmq.client.producer.SendResult;
    import com.alibaba.rocketmq.common.consumer.ConsumeFromWhere;
    import com.alibaba.rocketmq.common.message.Message;
    import com.alibaba.rocketmq.common.message.MessageExt;
    import java.util.List;

    public class Consumer {
    public static void main(String[] args) {
    DefaultMQPushConsumer consumer =
    new DefaultMQPushConsumer("PushConsumer");
    consumer.setNamesrvAddr("192.168.0.1:9876");
    try {
    //訂閱PushTopic下Tag爲push的消息
    consumer.subscribe("PushTopic", "push");
    //程序第一次啓動從消息隊列頭取數據
    consumer.setConsumeFromWhere(
    ConsumeFromWhere.CONSUME_FROM_FIRST_OFFSET);
    consumer.registerMessageListener(
    new MessageListenerConcurrently() {
    public ConsumeConcurrentlyStatus consumeMessage(
    List<MessageExt> list,
    ConsumeConcurrentlyContext Context) {
       /* Message msg = list.get(0);
    System.out.println(msg.toString());*/
    MessageExt messageExt=list.get(0);
    System.out.println("msg:\t"+new String(messageExt.getBody()));
    return ConsumeConcurrentlyStatus.CONSUME_SUCCESS;
    }
    }
    );
    consumer.start();
    } catch (Exception e) {
    e.printStackTrace();
    }
    }
    }