openjms 初体验

因为项目要用到点对点传输和订阅发布模式，了解了这样两个协议之后，又找到了支持这两种方式的一个开源框架openjms，准备试试看。

 

以下是运行jms的几个步骤。至于下载安装就自不必说了。

 

1. 打开命令行切换到jms主目录下的bin文件夹下，执行startup 脚本

2. 执行以下的发送和接受代码就可以工作了（先启动接收端）

 

JmsSender .java

 

package test.net.openjms;

import java.util.Hashtable;

import javax.jms.*;
import javax.naming.*;

public class JmsSender {
    public void send() {
        Hashtable<String, String> pps = new Hashtable<String, String>();
        pps.put(Context.INITIAL_CONTEXT_FACTORY, "org.exolab.jms.jndi.InitialContextFactory");
        pps.put(Context.PROVIDER_URL, "tcp://localhost:3035");
        
        try {
            Context ctx = new InitialContext(pps);
            ConnectionFactory fac = (ConnectionFactory) ctx.lookup("ConnectionFactory");
            Connection con = fac.createConnection();
            Session ses = con.createSession(false, Session.AUTO_ACKNOWLEDGE);
            
            Destination dist = (Destination) ctx.lookup("topic1");
            
            con.start();
            MessageProducer sender = ses.createProducer(dist);
            int i= 0;
            for (i = 0; i < 10; i++) {
                TextMessage msg = ses.createTextMessage(i + ". HEllo world!");
                sender.send(msg);
                System.out.println("Msg sent.");
            }
        } catch(Exception e) {
            e.printStackTrace();
        }
    }
    
    public static void main(String[] args) {
        new JmsSender().send();
        System.out.println("Sender DONE.");
    }
}

 

//JmsReceiver.java

package test.net.openjms;

import java.util.Hashtable;

import javax.jms.*;
import javax.naming.*;

public class JmsReceiver {
    public void receive() {
        Hashtable<String, String> pps = new Hashtable<String, String>();
        pps.put(Context.INITIAL_CONTEXT_FACTORY, "org.exolab.jms.jndi.InitialContextFactory");
        pps.put(Context.PROVIDER_URL, "tcp://localhost:3035");
        
        try {
            Context ctx = new InitialContext(pps);
            ConnectionFactory fac = (ConnectionFactory) ctx.lookup("ConnectionFactory");
            Connection con = fac.createConnection();
            Session ses = con.createSession(false, Session.AUTO_ACKNOWLEDGE);
            
            Destination dist = (Destination) ctx.lookup("topic1");
            
            MessageConsumer receiver = ses.createConsumer(dist);
            con.start();
            for (int i = 0; i < 10; i++) {
                TextMessage tmsg = (TextMessage) receiver.receive();
                System.out.println("Receive Msg: " + tmsg.getText());
            }
            
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
    
    public static void main(String[] args) {
        new JmsReceiver().receive();
        System.out.println("Receive DONE");
    }
}

 

 

 

转载于:https://www.cnblogs.com/martinzh/archive/2012/10/10/2718280.html