Introduction

These step assume the test programs are running on the Ubuntu server. I am currently using Ubuntu 17.04.

Step 1. Install JRE and JDK

sudo apt-get install default-jde

sudo apt-get install default jdk

Step 2. Create a Work Directory

mkdir rmq-java
cd rmq-java

Step 3. Create and Run Java Programs (Send.java Recv.java)

Click Here for Code Source and Code Description

send.java

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

public class Send
{
  private final static String QUEUE_NAME = "hello";

  public static void main(String[] argv) throws Exception
  {
    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 World!";
    channel.basicPublish("", QUEUE_NAME, null, message.getBytes("UTF-8"));
    System.out.println(" [x] Sent '" + message + "'");

    channel.close();
    connection.close();
  }
}

recv.java

import com.rabbitmq.client.*;

import java.io.IOException;

public class Recv
{
  private final static String QUEUE_NAME = "hello";

  public static void main(String[] argv) throws Exception
  {
    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);
  }
}