JAVA の基礎となるメッセージ キューの実装と最適化

import org.apache.activemq.ActiveMQConnectionFactory;

import javax.jms.*;

public class Sender {
    public static void main(String[] args) throws JMSException {
        // 创建连接工厂
        ConnectionFactory factory = new ActiveMQConnectionFactory("tcp://localhost:61616");

        // 创建连接
        Connection connection = factory.createConnection();

        // 开启连接
        connection.start();

        // 创建会话
        Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);

        // 创建队列
        Queue queue = session.createQueue("testQueue");

        // 创建消息生产者
        MessageProducer producer = session.createProducer(queue);

        // 创建消息
        TextMessage message = session.createTextMessage("Hello, World!");

        // 发送消息
        producer.send(message);

        // 关闭连接
        producer.close();
        session.close();
        connection.close();
    }
}

import org.apache.activemq.ActiveMQConnectionFactory;

import javax.jms.*;

public class Receiver {
    public static void main(String[] args) throws JMSException {
        // 创建连接工厂
        ConnectionFactory factory = new ActiveMQConnectionFactory("tcp://localhost:61616");

        // 创建连接
        Connection connection = factory.createConnection();

        // 开启连接
        connection.start();

        // 创建会话
        Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);

        // 创建队列
        Queue queue = session.createQueue("testQueue");

        // 创建消息消费者
        MessageConsumer consumer = session.createConsumer(queue);

        // 接收消息
        consumer.setMessageListener(new MessageListener() {
            @Override
            public void onMessage(Message message) {
                if (message instanceof TextMessage) {
                    try {
                        System.out.println("Received message: " + ((TextMessage) message).getText());
                    } catch (JMSException e) {
                        e.printStackTrace();
                    }
                }
            }
        });

        // 保持程序运行
        while (true) {

        }
    }
}