RabbitMQ Example Tutorial: Hello RabbitMQ World Java Implementation

RABBITMQ to achieve Hello World is actually very simple. Only one server is required to send the message, and another client receives a message.

The overall design process is as follows:

The message producer sends a hello to the message queue, and the message consumer receives the message from the queue.

  Download dependent jar Packages

RABBITMQ The Java Client library is required to send messages using Java implementations. Currently, the latest version of the Java Client Library for RABBIZMQ is 3.5.5. Can be downloaded from the MAVEN repository or directly to the official website.

<dependency>
   <groupId>com.rabbitmq</groupId>
   <artifactId>amqp-client</artifactId>
   <version>3.5.5</version>
</dependency>

  Creating senders with Java

package com.favccxx.favrabbit;

import java.io.IOException;
import java.util.concurrent.TimeoutException;

import com.rabbitmq.client.Channel;
import com.rabbitmq.client.Connection;
import com.rabbitmq.client.ConnectionFactory;

public class Sender {

	private final static String QUEUE_NAME = "hello";

	public static void main(String[] argv) throws IOException, TimeoutException {
		ConnectionFactory factory = new ConnectionFactory();
		factory.setHost("localhost");

		Connection connection = factory.newConnection();
		Channel channel = connection.createChannel();
		channel.queueDeclare(QUEUE_NAME, false, false, false, null);
		String message = "Hello RabbitMQ World!";
		channel.basicPublish("", QUEUE_NAME, null, message.getBytes());
		System.out.println(" [x] Sent ‘" + message + "‘");

	}
}

  RABBITMQ Console Monitoring Message Queuing

Running the above code, you can see the message just sent from the RABBITMQ console.

Using Java to receive messages

package com.favccxx.favrabbit;

import java.io.IOException;
import java.util.concurrent.TimeoutException;

import com.rabbitmq.client.AMQP;
import com.rabbitmq.client.Channel;
import com.rabbitmq.client.Connection;
import com.rabbitmq.client.ConnectionFactory;
import com.rabbitmq.client.Consumer;
import com.rabbitmq.client.DefaultConsumer;
import com.rabbitmq.client.Envelope;

public class Receiver {

	private final static String QUEUE_NAME = "hello";

	public static void main(String[] argv)
			throws java.io.IOException, java.lang.InterruptedException, TimeoutException {

		ConnectionFactory factory = new ConnectionFactory();
		factory.setHost("localhost");
		Connection connection = factory.newConnection();
		Channel channel = connection.createChannel();

		channel.queueDeclare(QUEUE_NAME, false, false, false, null);
		System.out.println(" [*] Waiting for messages. To exit press CTRL+C");

		Consumer consumer = new DefaultConsumer(channel) {
			@Override
			public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties,
					byte[] body) throws IOException {
				String message = new String(body, "UTF-8");
				System.out.println(" [x] Received ‘" + message + "‘");
			}
		};
		channel.basicConsume(QUEUE_NAME, true, consumer);
	}
}

Run the message sender and the message receiver separately, and you can see the real-time situation from the RABBITMQ console.

650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M00/74/2A/wKioL1YWY_Cz1LVDAAIKIpPqV5w568.jpg "title=" 4. RabbitMQ super.png "alt=" Wkiol1ywy_cz1lvdaaikippqv5w568.jpg "/>

So far, RABBITMQ's Hello World work is over, is there some goodwill in the message queue?

This article is from the "This person's IT World" blog, be sure to keep this source http://favccxx.blog.51cto.com/2890523/1701004

RabbitMQ Example Tutorial: Hello RabbitMQ World Java Implementation