queueexample1receiver.java

精通Jboss——Ejb和Web Services开发精解的随书源代码

/**
 * Created on 2003-9-13
 */
package com.liuyang.jboss.message.jms.queue;

import java.util.Hashtable;

import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.Queue;
import javax.jms.QueueConnection;
import javax.jms.QueueConnectionFactory;
import javax.jms.QueueReceiver;
import javax.jms.QueueSession;
import javax.jms.TextMessage;
import javax.naming.Context;
import javax.naming.InitialContext;
/**
 * @author
 * <a href="mailto:[e-mail]">刘洋</a>
 */
public class QueueExample1Receiver {

	public static void main(String[] args) throws Exception {
		QueueExample1Receiver receiver = new QueueExample1Receiver();
		receiver.connect();
		Message msg = receiver.receive();
		if(msg instanceof TextMessage){
			System.out.println(((TextMessage)msg).getText());
		}
		receiver.disconnect();
	}
	private QueueReceiver receiver;
	private QueueConnection conn;
	public QueueSession session;
	public void connect() throws Exception{
		
		Hashtable env = new Hashtable();
		env.put(Context.INITIAL_CONTEXT_FACTORY,"org.jnp.interfaces.NamingContextFactory");
		env.put(Context.PROVIDER_URL,"localhost");
		Context iniCtx = new InitialContext(env);	
			
		Object tmp = iniCtx.lookup("ConnectionFactory");
		QueueConnectionFactory qcf = (QueueConnectionFactory) tmp;	
		
		Queue queue = (Queue)iniCtx.lookup ("queue/queueexample1");	
		conn = qcf.createQueueConnection();
		session = conn.createQueueSession(false,QueueSession.AUTO_ACKNOWLEDGE);
		conn.start();	
		receiver = session.createReceiver(queue);		
	}
	public void disconnect() throws JMSException{
		conn.stop();
		session.close();
		conn.close();
	}		
	public Message receive() throws JMSException{
		return receiver.receive(1000);
	}
}