activemq api的封装

今天无聊写段代码。。学习一下activemq,简单封装了一下activemq 的topic api。跟jdbc很类似

主要代码：

import java.io.Serializable;

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.MessageProducer;
import javax.jms.ObjectMessage;
import javax.jms.Session;
/*本工具封装了*/

import javax.jms.TextMessage;
import javax.jms.Topic;
import javax.jms.TopicConnection;
import javax.jms.TopicConnectionFactory;
import javax.jms.TopicPublisher;
import javax.jms.TopicSession;
import javax.jms.TopicSubscriber;

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

public class JMSTopic {
    TopicConnectionFactory connectionFactory;
    // Connection ：JMS 客户端到JMS Provider 的连接
    TopicConnection connection = null;
    //用来发布的会话

    TopicSession proSession = null;
    //2一个订阅会话
    TopicSession conSession = null;

    //主题发布者
    MessageProducer producer=null;
    //主题
    MessageConsumer consumer=null;

    // Destination ：消息的目的地;消息发送给谁.
    Destination destination;
    // MessageProducer：消息发送者

    //默认构造函数,默认的连接activemq，可以写多个构造函数
    public JMSTopic()
    {
        connectionFactory =  new ActiveMQConnectionFactory(
                ActiveMQConnection.DEFAULT_USER,
                ActiveMQConnection.DEFAULT_PASSWORD,
                "tcp://localhost:61616");
        try {
            connection= connectionFactory.createTopicConnection();
        } catch (JMSException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        try {
            connection.start();
        } catch (JMSException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

    }

    //此处先固定消息为String类型
    public void writeMessage(String t,String message )
    {
        try {
            proSession=connection.createTopicSession(false, Session.AUTO_ACKNOWLEDGE);

            producer=proSession.createProducer(proSession.createTopic(t));

            //使用message构造TextMessage
            TextMessage text=proSession.createTextMessage();
            text.setText(message);
            producer.send(text);

        } catch (JMSException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        //创建发布会话应该是可以配置的，此处先固定

    }
    public void writeMessage(String t,Object o )
    {
        try {
            proSession=connection.createTopicSession(false, Session.AUTO_ACKNOWLEDGE);

            producer=proSession.createProducer(proSession.createTopic(t));

            //使用message构造TextMessage
            ObjectMessage text=proSession.createObjectMessage();
            text.setObject((Serializable) o);
            producer.send(text);

        } catch (JMSException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        //创建发布会话应该是可以配置的，此处先固定

    }

    //使用某个Message监听器来监听某个Topic
    public void receiveMsg(String c,MessageListener ml)
    {
        try {
            conSession=connection.createTopicSession(false,Session.AUTO_ACKNOWLEDGE);
            Topic t=conSession.createTopic(c);
            consumer=conSession.createConsumer(t);
            //设置过来的监视器
            consumer.setMessageListener(ml);

        } catch (JMSException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

    }

}

2.测试，发送的消息是对象

a.一个序列化的Stduent 对象

 package ch02.chat;

 import java.io.Serializable;

 public class Student implements Serializable {
     private int age;
     private String name;
     public Student(int age,String name)
     {
         this.age=age;
         this.name=name;

     }
     public String toString()
     {
         return "age ="+age+"  name "+ "name";
     }

 }

b.客户端发送

 package ch02.chat;

 public class ClientTest {
     public static void main(String args[])
     {
         JMSTopic jt=new JMSTopic();
         jt.writeMessage( "topic1",new Student(12,"han"));

     }

 }

c.客户端接受信息

 package ch02.chat;

 import javax.jms.JMSException;
 import javax.jms.Message;
 import javax.jms.MessageListener;
 import javax.jms.ObjectMessage;
 import javax.jms.TextMessage;

 public class ClientTest2 {

     public static void main(String args[])
     {
         JMSTopic jt=new JMSTopic();

     jt.receiveMsg("topic1",new MessageListener()
     {

         @Override
         public void onMessage(Message message) {
             // TODO Auto-generated method stub
             ObjectMessage tm = (ObjectMessage) message;
             try {
                 System.out.println("Received message: " +tm.getObject());
             } catch (JMSException e) {
                 e.printStackTrace();
             }  

         }

     }

             );

     }

 }

运行喽