/**
* Creates all the necessary objects for receiving messages from a JMS queue.
*
* @param ctx JNDI initial context
* @param queueName name of queue
* @exception NamingException if operation cannot be performed
* @exception JMSException if JMS fails to initialize due to internal error
*/
public void init(Context ctx, String queueName) throws NamingException, JMSException {
qconFactory = (QueueConnectionFactory) ctx.lookup(JMS_FACTORY);
qcon = qconFactory.createQueueConnection();
qsession = qcon.createQueueSession(false, Session.AUTO_ACKNOWLEDGE);
queue = (Queue) ctx.lookup(queueName);
qreceiver = qsession.createReceiver(queue);
qreceiver.setMessageListener(this);
qcon.start();
}
public QLender(String queuecf, String requestQueue) {
try {
// Connect to the provider and get the JMS connection
Context ctx = new InitialContext();
QueueConnectionFactory qFactory = (QueueConnectionFactory) ctx.lookup(queuecf);
qConnect = qFactory.createQueueConnection();
// Create the JMS Session
qSession = qConnect.createQueueSession(false, Session.AUTO_ACKNOWLEDGE);
// Lookup the request queue
requestQ = (Queue) ctx.lookup(requestQueue);
// Now that setup is complete, start the Connection
qConnect.start();
// Create the message listener
QueueReceiver qReceiver = qSession.createReceiver(requestQ);
qReceiver.setMessageListener(this);
System.out.println("Waiting for loan requests...");
} catch (JMSException jmse) {
jmse.printStackTrace();
System.exit(1);
} catch (NamingException jne) {
jne.printStackTrace();
System.exit(1);
}
}
@Test
public void receiver() throws Exception {
QueueConnection connection = null;
QueueSession session = null;
try {
// 创建链接工厂
QueueConnectionFactory factory =
new ActiveMQConnectionFactory(
ActiveMQConnection.DEFAULT_USER, ActiveMQConnection.DEFAULT_PASSWORD, BROKER_URL);
// 通过工厂创建一个连接
connection = factory.createQueueConnection();
// 启动连接
connection.start();
// 创建一个session会话
session = connection.createQueueSession(Boolean.TRUE, Session.AUTO_ACKNOWLEDGE);
// 创建一个消息队列
javax.jms.Queue queue = session.createQueue(TARGET);
// 创建消息制作者
javax.jms.QueueReceiver receiver = session.createReceiver(queue);
receiver.setMessageListener(
new MessageListener() {
public void onMessage(Message msg) {
if (msg != null) {
// MapMessage map = (MapMessage) msg;
try {
System.out.println(msg.getStringProperty("text"));
// System.out.println(map.getLong("time") + "接收#" +
// map.getString("text"));
} catch (JMSException e) {
e.printStackTrace();
}
}
}
});
// 休眠100ms再关闭
Thread.sleep(1000 * 100);
// 提交会话
session.commit();
} catch (Exception e) {
throw e;
} finally {
// 关闭释放资源
if (session != null) {
session.close();
}
if (connection != null) {
connection.close();
}
}
}
