深入掌握JMS（七）：DeliveryMode例子

本文转自：http://blog.csdn.net/iamfafa/article/details/6265164

在下面的例子中，分别发送一个Persistent和nonpersistent的消息，然后关闭退出JMS。

import javax.jms.Connection;
import javax.jms.DeliveryMode;
import javax.jms.MessageProducer;
import javax.jms.Queue;
import javax.jms.Session;
import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.command.ActiveMQQueue;

public class DeliveryModeSendTest {

	public static void main(String[] args) throws Exception {
		ActiveMQConnectionFactory factory = new ActiveMQConnectionFactory("vm://localhost");
		Connection connection = factory.createConnection();
		connection.start();
		Queue queue = new ActiveMQQueue("testQueue");
		Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
		MessageProducer producer = session.createProducer(queue);
		producer.setDeliveryMode(DeliveryMode.PERSISTENT);
		producer.send(session.createTextMessage("A persistent Message"));
		producer.setDeliveryMode(DeliveryMode.NON_PERSISTENT);
		producer.send(session.createTextMessage("A non persistent Message"));
		System.out.println("Send messages sucessfully!");
	}
}

运行上面的程序，当输出“Send messages sucessfully!”时，说明两个消息都已经发送成功，然后我们结束它，来停止JMS Provider。


接下来我们重新启动JMS Provicer，然后添加一个消费者：

import javax.jms.Connection;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.MessageConsumer;
import javax.jms.MessageListener;
import javax.jms.Queue;
import javax.jms.Session;
import javax.jms.TextMessage;
import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.command.ActiveMQQueue;

public class DeliveryModeReceiveTest {

	public static void main(String[] args) throws Exception {
		ActiveMQConnectionFactory factory = new ActiveMQConnectionFactory("vm://localhost");
		Connection connection = factory.createConnection();
		connection.start();
		Queue queue = new ActiveMQQueue("testQueue");
		Session session = connection.createSession(false,Session.AUTO_ACKNOWLEDGE);
		MessageConsumer comsumer = session.createConsumer(queue);
		comsumer.setMessageListener(new MessageListener() {
			public void onMessage(Message m) {
				try {
					System.out.println("Consumer get " + ((TextMessage) m).getText());
				} catch (JMSException e) {
					e.printStackTrace();
				}
			}
		});
	}
}