activemq 队列模式(二)

创建一个maven项目 (quick即可)

<!--添加activemq的依赖-->
    <dependency>
      <groupId>org.apache.activemq</groupId>
      <artifactId>activemq-all</artifactId>
      <version>5.9.0</version>
    </dependency>

 创建生产者:

package com.test.producermq;

import org.apache.activemq.*;

import javax.jms.*;

/**
 * @Title: MessageProducer
 * @ProjectName activemq
 * @date 2019/11/89:49
 */
public class MessageProducer {
    //定义ActivMQ的连接地址
    private static final String ACTIVEMQ_URL = "tcp://127.0.0.1:61616";
    //定义发送消息的队列名称
    private static final String QUEUE_NAME = "MyMessage";

    public static void main(String[] args) throws JMSException {
        // 1.创建连接工厂
        ActiveMQConnectionFactory activeMQConnectionFactory = new ActiveMQConnectionFactory(ACTIVEMQ_URL);
        // 2.创建连接
        Connection connection = activeMQConnectionFactory.createConnection();
        // 3.打开连接
        connection.start();
        // 4.创建会话
        Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
        // 5.创建队列目标
        Destination destination = session.createQueue(QUEUE_NAME);
        // 6.创建一个生产者
        javax.jms.MessageProducer producer = session.createProducer(destination);
        //创建模拟100个消息
        for (int i = 1 ; i <= 100 ; i++){
            TextMessage message = session.createTextMessage("我发送message:" + i);
            //发送消息
            producer.send(message);
            //在本地打印消息
            System.out.println("我现在发的消息是：" + message.getText());
        }
        //关闭连接
        connection.close();
    }
}

运行之后可以看见:

 创建消费者:

package com.test.consumemq;

import org.apache.activemq.ActiveMQConnectionFactory;

import javax.jms.*;

/**
 * @Title: MessageConsumer
 * @ProjectName activemq
 * @date 2019/11/89:56
 */
public class MessageConsumer {
    //定义ActivMQ的连接地址
    private static final String ACTIVEMQ_URL = "tcp://127.0.0.1:61616";
    //定义发送消息的队列名称
    private static final String QUEUE_NAME = "MyMessage";
    public static void main(String[] args) throws JMSException {
        // 1.创建连接工厂
        ActiveMQConnectionFactory activeMQConnectionFactory = new ActiveMQConnectionFactory(ACTIVEMQ_URL);
        // 2.创建连接
        Connection connection = activeMQConnectionFactory.createConnection();
        // 3.打开连接
        connection.start();
        // 4.创建会话
        Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
        // 5.创建队列目标
        Destination destination = session.createQueue(QUEUE_NAME);
        // 6.创建消费者
        javax.jms.MessageConsumer consumer = session.createConsumer(destination);
        // 7.创建消费的监听
        consumer.setMessageListener(new MessageListener() {
            @Override
            public void onMessage(Message message) {
                TextMessage textMessage = (TextMessage) message;
                try {
                    System.out.println("获取消息：" + textMessage.getText());
                } catch (JMSException e) {
                    e.printStackTrace();
                }
            }
        });
    }
}

　运行之后可以看见:

  消息已被消费

队列模式的消息，是只会被一个消费者所使用的，而不会被共享