ActiveMQ（二十五）--ActiveMQ的集群1

Queue consumer cluster和Broker cluster

import org.apache.activemq.ActiveMQConnectionFactory;

import javax.jms.*;

public class QueueSender1 {
    public static void main(String[] args) throws JMSException, InterruptedException {
//        ConnectionFactory connectionFactory = new ActiveMQConnectionFactory("tcp://192.168.25.128:61616");
        ConnectionFactory connectionFactory = new ActiveMQConnectionFactory(
                "failover:(tcp://192.168.25.128:61616,tcp://192.168.25.128:61716)?randomize=true");

        Connection connection = connectionFactory.createConnection();
        connection.start();

        Session session = connection.createSession(Boolean.TRUE, Session.AUTO_ACKNOWLEDGE);
        Destination destination = session.createQueue("my-queue");

        MessageProducer producer = session.createProducer(destination);

        for (int i = 0; i < 30; i++) {
            TextMessage message = session.createTextMessage("message999--" + i);
            producer.send(message);

        }

        session.commit();
        session.close();
        connection.close();
    }
}

import org.apache.activemq.ActiveMQConnectionFactory;

import javax.jms.*;

public class QR1 {
    public static void main(String[] args) throws JMSException {

        ConnectionFactory connectionFactory = new ActiveMQConnectionFactory("tcp://192.168.25.128:61616");
        Connection connection = connectionFactory.createConnection();
        connection.start();
        Session session = connection.createSession(true, Session.AUTO_ACKNOWLEDGE);
        Destination destination = session.createQueue("my-queue");

        for (int i = 0; i < 1; i++) {
            MessageConsumer consumer = session.createConsumer(destination);
            consumer.setMessageListener(new MessageListener() {
                @Override
                public void onMessage(Message message) {
                    TextMessage txtMsg = (TextMessage) message;
                    try {
                        System.out.println("QR111===" + txtMsg.getText());
                        session.commit();
                    } catch (JMSException e) {
                        e.printStackTrace();
                    }
                }
            });
        }
    }
}

import org.apache.activemq.ActiveMQConnectionFactory;

import javax.jms.*;

public class QR2 {
    public static void main(String[] args) throws JMSException {

        ConnectionFactory connectionFactory = new ActiveMQConnectionFactory("tcp://192.168.25.128:61716");
        Connection connection = connectionFactory.createConnection();
        connection.start();
        Session session = connection.createSession(true, Session.AUTO_ACKNOWLEDGE);
        Destination destination = session.createQueue("my-queue");

        for (int i = 0; i < 1; i++) {

            MessageConsumer consumer = session.createConsumer(destination);
            consumer.setMessageListener(new MessageListener() {
                @Override
                public void onMessage(Message message) {
                    TextMessage txtMsg = (TextMessage) message;
                    try {
                        System.out.println("QR222===" + txtMsg.getText());
                        session.commit();
                    } catch (JMSException e) {
                        e.printStackTrace();
                    }
                }
            });
        }
    }
}

先启动QR1和QR2。然后，再启动QueueSender1。

此时，c1和c2均衡的消费由brokerA和borkerB组成的集群里的消息。

修改

先启动QR1和QR2。然后，再启动QueueSender1。

查看结果，c1和c2依然是均衡的消费。

这是因为

修改conf里面的activmq.xml

重新启动mq

先启动QR1和QR2。然后，再启动QueueSender1。