ActiveMQ简单例子

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1、点对点模式(p2p)

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package com.tg.activemq.queue;

import javax.jms.Connection;
import javax.jms.ConnectionFactory;
import javax.jms.DeliveryMode;
import javax.jms.Destination;
import javax.jms.JMSException;
import javax.jms.MessageProducer;
import javax.jms.Session;
import javax.jms.TextMessage;

import org.apache.activemq.ActiveMQConnection;
import org.apache.activemq.ActiveMQConnectionFactory;

/**
 * 点对点消息发送方
 *
 * @version 2016年11月14日上午9:18:28
 * @author wuliu
 */
public class SenderQueue {
    
    public static void main(String[] args) {
        ConnectionFactory connectionFactory = null;
        Connection connection = null;
        Session session = null;
        Destination destination = null;
        MessageProducer producer = null;
        // 获得JMS connection factory，通过我们提供特定环境的连接信息来构造factory
        connectionFactory = new ActiveMQConnectionFactory(ActiveMQConnection.DEFAULT_USER,
                ActiveMQConnection.DEFAULT_PASSWORD, "tcp://localhost:61616");
        try {
            connection = connectionFactory.createConnection();
            connection.start();
            // 获取操作连接
            session = connection.createSession(Boolean.TRUE, Session.AUTO_ACKNOWLEDGE);
            destination = session.createQueue("test_2016111401");
            // 得到消息生成者
            producer = session.createProducer(destination);
            // 设置不持久化，此处学习，实际根据项目决定
            producer.setDeliveryMode(DeliveryMode.NON_PERSISTENT);
            // 构造消息，此处写死，项目就是参数，或者方法获取
            sendMessage(session, producer);
            session.commit();
        }
        catch (JMSException e) {
            e.printStackTrace();
        }
        catch (Exception e) {
            e.printStackTrace();
        }
    }
    
    public static void sendMessage(Session session, MessageProducer producer) throws Exception {
        for (int i = 1; i <= 10; i++) {
            TextMessage message = session.createTextMessage("ActiveMq 发送的消息" + i);
            // 发送消息到目的地方
            
            System.out.println("发送消息：" + "ActiveMq 发送的消息" + i);
            producer.send(message);
        }
    }
}

package com.tg.activemq.queue;

import javax.jms.Connection;
import javax.jms.ConnectionFactory;
import javax.jms.Destination;
import javax.jms.MessageConsumer;
import javax.jms.Session;
import javax.jms.TextMessage;
import org.apache.activemq.ActiveMQConnection;
import org.apache.activemq.ActiveMQConnectionFactory;

public class ReceiverQueue {
    
    public static void main(String[] args) {
        // ConnectionFactory ：连接工厂，JMS 用它创建连接
        ConnectionFactory connectionFactory;
        // Connection ：JMS 客户端到JMS Provider 的连接
        Connection connection = null;
        // Session： 一个发送或接收消息的线程
        Session session = null;
        // Destination ：消息的目的地;消息发送给谁.
        Destination destination;
        // 消费者，消息接收者
        MessageConsumer consumer = null;
        connectionFactory = new ActiveMQConnectionFactory(ActiveMQConnection.DEFAULT_USER,
                ActiveMQConnection.DEFAULT_PASSWORD, "tcp://localhost:61616");
        try {
            // 构造从工厂得到连接对象
            connection = connectionFactory.createConnection();
            // 启动
            connection.start();
            // 获取操作连接
            session = connection.createSession(Boolean.FALSE, Session.AUTO_ACKNOWLEDGE);
            // 获取session注意参数值xingbo.xu-queue是一个服务器的queue，须在在ActiveMq的console配置
            destination = session.createQueue("test_2016111401");
            consumer = session.createConsumer(destination);
            while (true) {
                // 设置接收者接收消息的时间，为了便于测试，这里谁定为100s
                TextMessage message = (TextMessage) consumer.receive(100000);
                if (null != message) {
                    System.out.println("收到消息" + message.getText());
                }
                else {
                    break;
                }
            }
        }
        catch (Exception e) {
            e.printStackTrace();
        }
        finally {
            try {
                if (null != connection) {
                    connection.close();
                }
                if (session != null) {
                    session.close();
                }
                if (consumer != null) {
                    consumer.close();
                }
                
            }
            catch (Throwable ignore) {
            }
        }
    }
    
}

2、订阅发布模式

package com.tg.activemq.topic;

import javax.jms.Connection;
import javax.jms.DeliveryMode;
import javax.jms.MessageProducer;
import javax.jms.Session;
import javax.jms.TextMessage;
import javax.jms.Topic;

import org.apache.activemq.ActiveMQConnectionFactory;

/**
 * 消息发布者
 *
 * @version 2016年11月14日上午9:33:28
 * @author wuliu
 */
public class SenderTopic {
    
    public static void main(String[] args) throws Throwable{
        
        ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory("tcp://localhost:61616");
        Connection connection = connectionFactory.createConnection();
        connection.start();
        Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
        Topic topic = session.createTopic("wl.messages");
        MessageProducer producer = session.createProducer(topic);
        producer.setDeliveryMode(DeliveryMode.NON_PERSISTENT);
        while(true){
            TextMessage message = session.createTextMessage();
            message.setText("message_" + System.currentTimeMillis());
            producer.send(message);
            System.out.println("Send message:" + message.getText());
            Thread.sleep(10000);
        }
    }
}
package com.tg.activemq.topic;

import javax.jms.Connection;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.MessageConsumer;
import javax.jms.MessageListener;
import javax.jms.Session;
import javax.jms.TextMessage;
import javax.jms.Topic;

import org.apache.activemq.ActiveMQConnectionFactory;

/**
 * 消息订阅者
 *
 * @version 2016年11月14日上午9:33:13
 * @author wuliu
 */
public class ReceiverTopic {
    
    public static void main(String[] args) throws Throwable{
        ActiveMQConnectionFactory factory = new ActiveMQConnectionFactory("tcp://localhost:61616");
        Connection connection = factory.createConnection();
        connection.start();
        
        Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
        Topic topic = session.createTopic("wl.messages");
        MessageConsumer consumer = session.createConsumer(topic);
        consumer.setMessageListener(new MessageListener() {
            
            public void onMessage(Message message) {
                TextMessage textMessage = (TextMessage) message;
                try {
                    System.out.println("Received message:" + textMessage.getText());
                }
                catch (JMSException e) {
                    e.printStackTrace();
                }
            }
        });
    }  

}