Apache ActiveMQ消息中间件的基本使用

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Apache ActiveMQ是Apache软件基金会所研发的开放源码消息中间件；由于ActiveMQ是一个纯Java程式，因此只需要操作系统支援Java虚拟机，ActiveMQ便可执行。

支持Java消息服务 (JMS) 1.1 版本
Spring Framework
集群 (Clustering)
支持的编程语言包括：C、C++、C#、Delphi、Erlang、Adobe Flash、Haskell、Java、JavaScript、Perl、PHP、Pike、Python和Ruby [1]
协议支持包括：OpenWire、REST、STOMP、WS-Notification、XMPP以及AMQP

好，我们先写个demo来试试 ActiveMQ的效果.

首先我们要下载ActiveMQ，下载地址：

http://www.apache.org/dyn/closer.cgi?path=/activemq/apache-activemq/5.8.0/apache-activemq-5.8.0-bin.zip

解压后，在x:/apache-activemq-5.8.0-bin/bin 目录下执行 activemq.bat即可启动 ActiveMQ或者win64文件夹下的wrapper.exe启动，

由于ActiveMQ内置了Jetty web服务器，当ActiveMQ启动成功后，可以通过：http://localhost:8161/admin/访问ActiveMQ的控制台，默认的用户名和密码是：admin。

至此ActiveMQ 服务已经启动了，接下来我们先将x:/apache-activemq-5.8.0-bin/activemq-all-5.8.0.jar拷贝到你的classpath目录下，利用Java写个demo来尝试一下这个消息中间件。

一、显示发送者的对象

import javax.jms.Connection;import javax.jms.ConnectionFactory;import javax.jms.DeliveryMode;import javax.jms.Destination;import javax.jms.MessageProducer;import javax.jms.ObjectMessage;import javax.jms.Session;import org.apache.activemq.ActiveMQConnectionFactory;public class Sender {    public static void main(String[] args) throws Exception {        aa();    }    public static void aa() throws Exception{        ConnectionFactory connectionFactory = new ActiveMQConnectionFactory("tcp://127.0.0.1:61616");                    Connection connection = connectionFactory.createConnection();          connection.start();                  Session session = connection.createSession(Boolean.TRUE, Session.AUTO_ACKNOWLEDGE);          Destination destination = session.createQueue("Test.foo");          MessageProducer producer = session.createProducer(destination);          producer.setDeliveryMode(DeliveryMode.PERSISTENT);        for(int i=0; i<100; i++) {              int id = i+1;            ObjectMessage message = session.createObjectMessage();            message.setObject(new User(id, "张三"+id, "123456"));            producer.send(message);          }          System.out.println("ok...");        session.commit();        session.close();          connection.close();      }}

二、接受者对象

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import java.util.concurrent.TimeUnit;
 
import javax.jms.Connection;
import javax.jms.ConnectionFactory;
import javax.jms.Destination;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.MessageConsumer;
import javax.jms.MessageListener;
import javax.jms.ObjectMessage;
import javax.jms.Session;
 
import org.apache.activemq.ActiveMQConnectionFactory;
 
public class Receiver {
 
    public static void aa() throws Exception{
        ConnectionFactory connectionFactory = new ActiveMQConnectionFactory("tcp://127.0.0.1:61616"); 
           
        Connection connection = connectionFactory.createConnection(); 
        connection.start();
       
        final Session session = connection.createSession(Boolean.TRUE, Session.AUTO_ACKNOWLEDGE); 
        Destination destination = session.createQueue("Test.foo");
         
        MessageConsumer consumer = session.createConsumer(destination);
        //listener 方式
        consumer.setMessageListener(new MessageListener() {
      
            public void onMessage(Message msg) {
                ObjectMessage message = (ObjectMessage) msg;
                //TODO something....
                try {
                    User user = (User) message.getObject();
                    System.out.println("收到消息："+user.getName());
                } catch (JMSException e1) {
                    // TODO Auto-generated catch block
                    e1.printStackTrace();
                }
                try {
                    session.commit();
                } catch (JMSException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
            }
      
        });
        TimeUnit.MINUTES.sleep(1);
       
        session.close(); 
        connection.close();
    }
     
    public static void main(String[] args) throws Exception{
        aa();
    }
}

 1 import java.io.Serializable; 2  3 public class User implements Serializable { 4  5     private int id; 6      7     private String name; 8      9     private String pwd;10     11     public User(int id,String name,String pwd){12         this.id=id;13         this.name=name;14         this.pwd=pwd;15     }16 17     public int getId() {18         return id;19     }20 21     public void setId(int id) {22         this.id = id;23     }24 25     public String getName() {26         return name;27     }28 29     public void setName(String name) {30         this.name = name;31     }32 33     public String getPwd() {34         return pwd;35     }36 37     public void setPwd(String pwd) {38         this.pwd = pwd;39     }40     41 }

先运行发送者，然后运行接收者即可。。。。

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