Rocket生产者、消费者 示例代码

注意：1、安装的MQ版本要和代码依赖的版本一致 例如本例安装的MQ 4.7.0  代码依赖如下也要是4.7.0

       

<!-- RocketMQ -->
<dependency>
    <groupId>org.apache.rocketmq</groupId>
    <artifactId>rocketmq-client</artifactId>
    <version>4.7.0</version>
</dependency>
<dependency>
    <groupId>org.apache.rocketmq</groupId>
    <artifactId>rocketmq-all</artifactId>
    <version>4.7.0</version>
    <type>pom</type>
</dependency>

   2、groupId低版本的是

com.alibaba.rocketmq

高版本的是 

org.apache.rocketmq

生产者

import org.apache.rocketmq.client.producer.DefaultMQProducer;
import org.apache.rocketmq.client.producer.SendResult;
import org.apache.rocketmq.common.message.Message;

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

            String pushMsg="37000021222;233333;90;20";
            Message msg = new Message("InvoiceTopic","useInvoice","1",
                    pushMsg.getBytes("UTF-8"));

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

            String pushMsg2="37000021222;23333344;290;20";
            msg = new Message("InvoiceTopic","useInvoice","2",pushMsg2.getBytes("UTF-8"));

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

            String pushMsg3="37000021222;23533344;390;20";
            msg = new Message("InvoiceTopic","releaseInvoice","1",pushMsg3.getBytes());

            result = producer.send(msg);
            System.out.println("id:" + result.getMsgId() +
                    " result:" + result.getSendStatus());
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            producer.shutdown();
        }
    }
}

 

消费者PUSH

import org.apache.rocketmq.client.consumer.DefaultMQPushConsumer;
import org.apache.rocketmq.client.consumer.listener.ConsumeConcurrentlyContext;
import org.apache.rocketmq.client.consumer.listener.ConsumeConcurrentlyStatus;
import org.apache.rocketmq.client.consumer.listener.MessageListenerConcurrently;
import org.apache.rocketmq.client.exception.MQClientException;
import org.apache.rocketmq.common.message.MessageExt;

import java.util.List;

public class Consumer {
    public static void main(String[] args) throws MQClientException {
        // 创建消费者对象
        DefaultMQPushConsumer consumer = new DefaultMQPushConsumer("MMTTconsumerGroupName");
        // 设置服务器地址
        consumer.setNamesrvAddr("*****:9876");
        // 订阅指定主题
        consumer.subscribe("InvoiceTopic","useInvoice");
        // 注册消息监听事件
        consumer.registerMessageListener(new MessageListenerConcurrently() {
            public ConsumeConcurrentlyStatus consumeMessage(List<MessageExt> msgs, ConsumeConcurrentlyContext context) {

                try {

                    for (MessageExt msg: msgs) {
                        String recString = new String(msg.getBody() ,"UTF-8");
                        System.out.println(recString);
                    }
                    return ConsumeConcurrentlyStatus.CONSUME_SUCCESS;
                }catch (Exception e){
                    e.printStackTrace();
                }
                return ConsumeConcurrentlyStatus.RECONSUME_LATER;
            }
        });
        // 启动消费者
        consumer.start();
    }
}

 

来源：oschina

链接：https://my.oschina.net/u/4086064/blog/4458810