Java消息中间件ActiveMQ初体验

首先来一波百科

ActiveMQ 是Apache出品，最流行的，能力强劲的开源消息总线。ActiveMQ 是一个完全支持JMS1.1和J2EE 1.4规范的 JMS Provider实现，尽管JMS规范出台已经是很久的事情了，但是JMS在当今的J2EE应用中间仍然扮演着特殊的地位

下载安装

下载地址http://activemq.apache.org/activemq-5150-release.html

看个人选择windows或者linux版本
下载解压运行bn下面的activemq.bat或者选择安装到系统服务中心

这样就成功了默认账号密码为admin

官网例子

生产

import org.apache.activemq.ActiveMQConnectionFactory;public class HelloWorldProducer implements Runnable{    public void run() {        // TODO Auto-generated method stub        //创建一个ConnectionFactory         ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory("tcp://localhost:61616");         try {             // Create a Connection             Connection connection = connectionFactory.createConnection();            //打开连接            connection.start();            // Create a Session              Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);             // Create the destination (Topic or Queue)              Destination destination = session.createQueue("TEST.FOO");             // Create a MessageProducer from the Session to the Topic or Queue              MessageProducer producer = session.createProducer(destination);               producer.setDeliveryMode(DeliveryMode.NON_PERSISTENT);               // Create a messages              String text = "Hello world! From: " + Thread.currentThread().getName() + " : " + this.hashCode();               TextMessage message = session.createTextMessage(text);               // Tell the producer to send the message               System.out.println("Sent message: "+ message.hashCode() + " : " + Thread.currentThread().getName());               producer.send(message);              // Clean up               session.close();               connection.close();         } catch (JMSException e) {            System.out.println("Caught: " + e);              e.printStackTrace();          }    }}

消费

package com.activemq;import javax.jms.Connection;import javax.jms.Destination;import javax.jms.ExceptionListener;import javax.jms.JMSException;import javax.jms.Message;import javax.jms.MessageConsumer;import javax.jms.Session;import javax.jms.TextMessage;import org.apache.activemq.ActiveMQConnectionFactory;public class HelloWorldConsumer implements Runnable,ExceptionListener{    public void onException(JMSException arg0) {        System.out.println("JMS Exception occured.  Shutting down client.");     }    public void run() {        try {              // Create a ConnectionFactory              ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory("tcp://localhost:61616");              // Create a Connection              Connection connection = connectionFactory.createConnection();              connection.start();              connection.setExceptionListener(this);              // Create a Session              Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);              // Create the destination (Topic or Queue)              Destination destination = session.createQueue("TEST.FOO");             // Create a MessageConsumer from the Session to the Topic or Queue              MessageConsumer consumer = session.createConsumer(destination);         // Wait for a message              Message message = consumer.receive(1000);            if (message instanceof TextMessage) {                  TextMessage textMessage = (TextMessage) message;                  String text = textMessage.getText();                  System.out.println("Received: " + text);              } else {                  System.out.println("Received: " + message);              }              consumer.close();              session.close();              connection.close();         } catch (Exception e) {            System.out.println("Caught: " + e);              e.printStackTrace();          }    }}

测试

package com.activemq;public class App {    public static void main(String[] args) throws Exception {          thread(new HelloWorldProducer(), false);          thread(new HelloWorldProducer(), false);          thread(new HelloWorldConsumer(), false);          Thread.sleep(1000);          thread(new HelloWorldConsumer(), false);          thread(new HelloWorldProducer(), false);          thread(new HelloWorldConsumer(), false);          thread(new HelloWorldProducer(), false);          Thread.sleep(1000);          thread(new HelloWorldConsumer(), false);          thread(new HelloWorldProducer(), false);          thread(new HelloWorldConsumer(), false);          thread(new HelloWorldConsumer(), false);          thread(new HelloWorldProducer(), false);          thread(new HelloWorldProducer(), false);          Thread.sleep(1000);          thread(new HelloWorldProducer(), false);          thread(new HelloWorldConsumer(), false);          thread(new HelloWorldConsumer(), false);          thread(new HelloWorldProducer(), false);          thread(new HelloWorldConsumer(), false);          thread(new HelloWorldProducer(), false);          thread(new HelloWorldConsumer(), false);          thread(new HelloWorldProducer(), false);          thread(new HelloWorldConsumer(), false);          thread(new HelloWorldConsumer(), false);          thread(new HelloWorldProducer(), false);      }      public static void thread(Runnable runnable, boolean daemon) {          Thread brokerThread = new Thread(runnable);          brokerThread.setDaemon(daemon);          brokerThread.start();      }  }

结果