JMS Topic Receiver - Java Message

Java examples for Message:JMS

  1. HOME
  2. Java
  3. Message
  4. JMS

Description

JMS Topic Receiver

Demo Code

/**/*from www . ja v a2 s. c om*/
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p>
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.amq.jms;

import javax.jms.Connection;
import javax.jms.ConnectionFactory;
import javax.jms.MessageConsumer;
import javax.jms.Session;
import javax.jms.TextMessage;
import javax.jms.Topic;
import javax.naming.InitialContext;
import java.util.Hashtable;

/**
 * @author <a href="mailto:andy.taylor@jboss.org">Andy Taylor</a>
 */
public class TopicReceiver {
    public static void main(String[] args) throws Exception {
        String port = args[0];
        Hashtable<Object, Object> environment = new Hashtable<>();
        environment
                .put("java.naming.factory.initial",
                        "org.apache.activemq.artemis.jndi.ActiveMQInitialContextFactory");
        environment.put("connectionFactory.ConnectionFactory",
                "tcp://localhost:" + port);
        environment.put("topic.topic/exampleTopic", "exampleTopic");
        InitialContext initialContext = new InitialContext(environment);
        Topic topic = (Topic) initialContext.lookup("topic/exampleTopic");
        ConnectionFactory cf = (ConnectionFactory) initialContext
                .lookup("ConnectionFactory");
        try (Connection connection = cf.createConnection();
                Session session = connection.createSession(false,
                        Session.AUTO_ACKNOWLEDGE);) {
            connection.start();
            MessageConsumer consumer = session.createConsumer(topic);
            while (true) {
                System.out.println("Awaiting message");
                TextMessage message = (TextMessage) consumer.receive();
                System.out.println("message = " + message.getText());
            }
        }
    }
}

Related Tutorials