Hello ActiveMQ

关于JMS一个最简单的Demo：

发送消息的类JmsSender

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;

public class JmsSender {

/**
* @param args
* @throws JMSException
*/
public static void main(String[] args) throws JMSException {
// TODO Auto-generated method stub
// ConnectionFactory ：连接工厂，JMS 用它创建连接
ConnectionFactory factory = new ActiveMQConnectionFactory(ActiveMQConnection.DEFAULT_USER
, ActiveMQConnection.DEFAULT_PASSWORD, "tcp://127.0.0.1:61616");
//JMS 客户端到JMS Provider 的连接
Connection connection = factory.createConnection();
connection.start();
// Session： 一个发送或接收消息的线程
Session session = connection.createSession(Boolean.TRUE, Session.AUTO_ACKNOWLEDGE);
// Destination ：消息的目的地;消息发送给谁.   
// 获取session注意参数值my-queue是Query的名字
Destination destination = session.createQueue("testQueue");
// MessageProducer：消息生产者
MessageProducer producer = session.createProducer(destination);
//设置不持久化
producer.setDeliveryMode(DeliveryMode.NON_PERSISTENT);
sendMsg(session, producer);
session.commit();
connection.close();
}

public static void sendMsg(Session session, MessageProducer producer) throws JMSException {
//创建一条文本消息
TextMessage message = session.createTextMessage("Hello ActiveMQ！");
//通过消息生产者发送消息
producer.send(message);
System.out.println("");
}

}



接收消息的类JmsReceiver

import javax.jms.Connection;
import javax.jms.ConnectionFactory;
import javax.jms.Destination;
import javax.jms.JMSException;
import javax.jms.MessageConsumer;
import javax.jms.Session;
import javax.jms.TextMessage;

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

public class JmsReceiver {

/**
* @param args
* @throws JMSException
*/
public static void main(String[] args) throws JMSException {
// TODO Auto-generated method stub
// ConnectionFactory ：连接工厂，JMS 用它创建连接
ConnectionFactory factory = new ActiveMQConnectionFactory(ActiveMQConnection.DEFAULT_USER
, ActiveMQConnection.DEFAULT_PASSWORD, "tcp://127.0.0.1:61616");
//JMS 客户端到JMS Provider 的连接
Connection connection = factory.createConnection();
connection.start();
// Session： 一个发送或接收消息的线程
Session session = connection.createSession(Boolean.TRUE, Session.AUTO_ACKNOWLEDGE);
// Destination ：消息的目的地;消息发送给谁.   
// 获取session注意参数值my-queue是Query的名字
Destination destination = session.createQueue("myqueue");
MessageConsumer consumer = session.createConsumer(destination);
while (true) {
TextMessage message = (TextMessage) consumer.receive(1000);
if (message != null) {
System.out.println("收到消息：" + message.getText());
} else {
break;
}
}
session.close();
connection.close();
}

}



启动ActiveMQ：
先run发送者，后run接收者。