import org.apache.activemq.ActiveMQConnectionFactory;
import javax.jms.*;
public class AsyncMessageSender {
public static void main(String[] args) {
ConnectionFactory connectionFactory = new ActiveMQConnectionFactory("tcp://localhost:61616");
Connection connection = null;
try {
connection = connectionFactory.createConnection();
Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
Destination destination = session.createQueue("TestQueue");
MessageProducer producer = session.createProducer(destination);
producer.setDeliveryMode(DeliveryMode.NON_PERSISTENT);
TextMessage message = session.createTextMessage("Hello, ActiveMQ!");
producer.setAsync(new CompletionListener() {
@Override
public void onCompletion(Message message) {
System.out.println("Message sent successfully: " + message);
}
@Override
public void onException(Message message, Exception e) {
System.out.println("Failed to send message: " + message);
}
});
producer.send(message);
Thread.sleep(1000);
session.close();
} catch (Exception e) {
e.printStackTrace();
} finally {
if (connection != null) {
try {
connection.close();
} catch (JMSException e) {
e.printStackTrace();
}
}
}
}
}
import org.apache.activemq.ActiveMQConnectionFactory;
import javax.jms.*;
public class MessageConsumerWithFilter {
public static void main(String[] args) {
ConnectionFactory connectionFactory = new ActiveMQConnectionFactory("tcp://localhost:61616");
Connection connection = null;
try {
connection = connectionFactory.createConnection();
connection.start();
Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
Destination destination = session.createQueue("TestQueue");
MessageConsumer consumer = session.createConsumer(destination, "price > 100");
consumer.setMessageListener(new MessageListener() {
@Override
public void onMessage(Message message) {
try {
if (message instanceof TextMessage) {
System.out.println("Received message: " + ((TextMessage) message).getText());
}
} catch (JMSException e) {
e.printStackTrace();
}
}
});
session.close();
} catch (Exception e) {
e.printStackTrace();
} finally {
if (connection != null) {
try {
connection.close();
} catch (JMSException e) {
e.printStackTrace();
}
}
}
}
}
import org.apache.activemq.ActiveMQConnectionFactory;
import javax.jms.*;
public class PersistentMessageSender {
public static void main(String[] args) {
ConnectionFactory connectionFactory = new ActiveMQConnectionFactory("tcp://localhost:61616");
Connection connection = null;
try {
connection = connectionFactory.createConnection();
connection.start();
Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
Destination destination = session.createQueue("TestQueue");
MessageProducer producer = session.createProducer(destination);
producer.setDeliveryMode(DeliveryMode.PERSISTENT);
TextMessage message = session.createTextMessage("Hello, ActiveMQ!");
producer.send(message);
session.close();
} catch (Exception e) {
e.printStackTrace();
} finally {
if (connection != null) {
try {
connection.close();
} catch (JMSException e) {
e.printStackTrace();
}
}
}
}
}
