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

 1 package ch02.chat;

 2 

 3 import java.io.Serializable;

 4 

 5 public class Student implements Serializable {

 6     private int age;

 7     private String name;

 8     public Student(int age,String name)

 9     {

10         this.age=age;

11         this.name=name;

12         

13         

14     }

15     public String toString()

16     {

17         return "age ="+age+"  name "+ "name";

18     }

19 

20 }

View Code

b.客户端发送

 1 package ch02.chat;

 2 

 3 public class ClientTest {

 4     public static void main(String args[])

 5     {

 6         JMSTopic jt=new JMSTopic();

 7         jt.writeMessage( "topic1",new Student(12,"han"));

 8         

 9         

10         

11     }

12 

13 }

View Code

c.客户端接受信息

 1 package ch02.chat;

 2 

 3 import javax.jms.JMSException;

 4 import javax.jms.Message;

 5 import javax.jms.MessageListener;

 6 import javax.jms.ObjectMessage;

 7 import javax.jms.TextMessage;

 8 

 9 

10 public class ClientTest2 {

11     

12     public static void main(String args[])

13     {

14         JMSTopic jt=new JMSTopic();

15         

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

17     {

18 

19         @Override

20         public void onMessage(Message message) {

21             // TODO Auto-generated method stub

22             ObjectMessage tm = (ObjectMessage) message;  

23             try {  

24                 System.out.println("Received message: " +tm.getObject());  

25             } catch (JMSException e) {  

26                 e.printStackTrace();  

27             }  

28             

29             

30         }

31         

32         

33     }

34             

35             

36             );

37         

38         

39         

40     }

41 

42 }

View Code

 

运行喽