Corba项目中使用的ActiveMQ消息组件介绍
下载ActiveMQ http://activemq.apache.org/download.html
解压缩到本地
启动mq：/bin/activemq.bat
管理界面： http://localhost:8161/admin，默认不用验证。
发送消息测试：
package com.google.homework; import javax.jms.Connection; import javax.jms.DeliveryMode; import javax.jms.Destination; import javax.jms.JMSException; import javax.jms.MessageProducer; import javax.jms.Session; import javax.jms.TextMessage; import org.apache.activemq.ActiveMQConnection; import org.apache.activemq.ActiveMQConnectionFactory; public class ProducerTool { private String user = ActiveMQConnection.DEFAULT_USER; private String password = ActiveMQConnection.DEFAULT_PASSWORD; private String url = ActiveMQConnection.DEFAULT_BROKER_URL; private String subject = "TOOL.DEFAULT"; private Destination destination = null; private Connection connection = null; private Session session = null; private MessageProducer producer = null; // 初始化 private void initialize() throws JMSException, Exception { ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory( user, password, "tcp://localhost:61616"); connection = connectionFactory.createConnection(); session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE); destination = session.createQueue(subject); producer = session.createProducer(destination); producer.setDeliveryMode(DeliveryMode.NON_PERSISTENT); } // 发送消息 public void produceMessage(String message) throws JMSException, Exception { initialize(); TextMessage msg = session.createTextMessage(message); connection.start(); System.out.println("Producer:->Sending message: " + message); producer.send(msg); System.out.println("Producer:->Message sent complete!"); } // 关闭连接 public void close() throws JMSException { System.out.println("Producer:->Closing connection"); if (producer != null) producer.close(); if (session != null) session.close(); if (connection != null) connection.close(); } }
接受代码：
package com.google.homework; import javax.jms.Connection; import javax.jms.Destination; import javax.jms.JMSException; import javax.jms.MessageConsumer; import javax.jms.Session; import javax.jms.MessageListener; import javax.jms.Message; import javax.jms.TextMessage; import org.apache.activemq.ActiveMQConnection; import org.apache.activemq.ActiveMQConnectionFactory; public class ConsumerTool implements MessageListener { private String user = ActiveMQConnection.DEFAULT_USER; private String password = ActiveMQConnection.DEFAULT_PASSWORD; private String url = ActiveMQConnection.DEFAULT_BROKER_URL; private String subject = "TOOL.DEFAULT"; private Destination destination = null; private Connection connection = null; private Session session = null; private MessageConsumer consumer = null; // 初始化 private void initialize() throws JMSException, Exception { ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory( user, password, url); connection = connectionFactory.createConnection(); session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE); destination = session.createQueue(subject); consumer = session.createConsumer(destination); } // 消费消息 public void consumeMessage() throws JMSException, Exception { initialize(); connection.start(); System.out.println("Consumer:->Begin listening..."); // 开始监听 consumer.setMessageListener(this); // Message message = consumer.receive(); } // 关闭连接 public void close() throws JMSException { System.out.println("Consumer:->Closing connection"); if (consumer != null) consumer.close(); if (session != null) session.close(); if (connection != null) connection.close(); } // 消息处理函数 public void onMessage(Message message) { try { if (message instanceof TextMessage) { TextMessage txtMsg = (TextMessage) message; String msg = txtMsg.getText(); System.out.println("Consumer:->Received: " + msg); } else { System.out.println("Consumer:->Received: " + message); } } catch (JMSException e) { // TODO Auto-generated catch block e.printStackTrace(); } } }
测试：
package com.google.homework; import javax.jms.JMSException; public class Test { /** * @param args */ public static void main(String[] args) throws JMSException, Exception { // TODO Auto-generated method stub ConsumerTool consumer = new ConsumerTool(); ProducerTool producer = new ProducerTool(); // 开始监听 consumer.consumeMessage(); // 延时500毫秒之后发送消息 Thread.sleep(500); producer.produceMessage("Hello, world!"); producer.close(); // 延时500毫秒之后停止接受消息 Thread.sleep(500); consumer.close(); } }