ActiveMQ之四：HelloWorld例子

1、启动ActiveMQ服务器

2、消息的发送

import java.util.Date;
import javax.jms.Connection;
import javax.jms.Destination;
import javax.jms.JMSException;
import javax.jms.MapMessage;
import javax.jms.MessageProducer;
import javax.jms.Session;
import org.apache.activemq.ActiveMQConnection;
import org.apache.activemq.ActiveMQConnectionFactory;


/**
 * 消息的发送者
 */
public class Producer {
	public static void main(String[] args) {
		String user = ActiveMQConnection.DEFAULT_USER;
		String password = ActiveMQConnection.DEFAULT_PASSWORD;
		String url = ActiveMQConnection.DEFAULT_BROKER_URL;
		String subject = "TOOL.DEFAULT";
		/**创建连接工厂*/
		ActiveMQConnectionFactory contectionFactory = new ActiveMQConnectionFactory( user, password, url);
		
		try {
			/**创建连接*/
			Connection connection = contectionFactory.createConnection();
			connection.start();//开启连接
			/**创建session*/
			Session session = connection.createSession(Boolean.TRUE, Session.AUTO_ACKNOWLEDGE);
			/**指定消息的目的地*/
			Destination destination = session.createQueue(subject);
			/**创建发送消息对象*/
			MessageProducer producer = session.createProducer(destination);
		
			for (int i = 0; i <= 2; i++) {
				MapMessage message = session.createMapMessage();
				Date date = new Date(); 
				message.setLong("date", date.getTime());
				message.setString("seqnum", String.valueOf(i));
				Thread.sleep(1000);
				producer.send(message);
				System.out.println("发送端发送消息：" + date);
			}
			session.commit();
			session.close();
			connection.close();
		} catch (JMSException e) {
			e.printStackTrace();
		} catch (InterruptedException e) {
			e.printStackTrace();
		}
	}
}

 

3、消息的消费

/**
 * queue:消息消费者
 * 
 * @author  文超
 * @version  [版本号, Apr 27, 2013 5:28:49 PM ]
 * @see  [相关类/方法]
 * @since  [产品/模块版本]
 */
public class Consumer {
	public static void main(String[] args) {
		String user = ActiveMQConnection.DEFAULT_USER;
		String password = ActiveMQConnection.DEFAULT_PASSWORD;
		String url = ActiveMQConnection.DEFAULT_BROKER_URL;
		String subject = "TOOL.DEFAULT";
		ConnectionFactory connectionFactory = new ActiveMQConnectionFactory( user, password, url);
		Connection connection;
		try {
			connection = connectionFactory.createConnection();
			connection.start();
			final Session session = connection.createSession(Boolean.TRUE, Session.AUTO_ACKNOWLEDGE);
			Destination destination = session.createQueue(subject);
			MessageConsumer message = session.createConsumer(destination);
			message.setMessageListener(new MessageListener() {
				public void onMessage(Message msg) {
					MapMessage message = (MapMessage) msg;
					try {
						System.out.println("接收端收到消息，" +message.getString("seqnum")+":"+ new Date(message.getLong("data")));
						session.commit();
					} catch (JMSException e) {
						e.printStackTrace();
					}
				}
			});
			Thread.sleep(3000);
			session.close();
			connection.close();
		} catch (JMSException e) {
			e.printStackTrace();
		} catch (InterruptedException e) {
			e.printStackTrace();
		}
	}
}