如何从在本地docker容器中运行的Rabbitmq队列中读取消息

Question

我正在docker容器中的本地mac中运行Rabbitmq。我通过浏览器中的GUI（端口15672）访问了它，并创建了一个队列，交换并在该队列中发布了一些消息。我正在尝试编写一个Java应用程序，该应用程序可以从队列中读取消息并在控制台中将其打印出来，但我遇到了此错误。

rjashnani-ltm:rabbitmq rjashnani$ java -cp .:amqp-client-5.7.1.jar:slf4j-api-1.7.26.jar:slf4j-simple-1.7.26.jar Recv
Exception in thread "main" java.net.ConnectException: Connection refused (Connection refused)
    at java.net.PlainSocketImpl.socketConnect(Native Method)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)

我使用此命令创建了Docker容器

docker run -d --hostname my-rabbit --name some-rabbit2 -p 15672:15672 -p 5672:5672 rabbitmq:3-management

这是我的Java应用程序代码

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

public class Recv {

    private final static String QUEUE_NAME = "test-queue";

    public static void main(String[] argv) throws Exception {
        ConnectionFactory factory = new ConnectionFactory();
        factory.setHost("localhost");
        factory.setPort(5762);
        factory.setUsername("guest");
        factory.setPassword("guest");
        factory.setVirtualHost("/");
        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");

        DeliverCallback deliverCallback = (consumerTag, delivery) -> {
            String message = new String(delivery.getBody(), "UTF-8");
            System.out.println(" [x] Received '" + message + "'");
        };
        channel.basicConsume(QUEUE_NAME, true, deliverCallback, consumerTag -> { });
    }
}

Answer 1

docker run -it --rm --name rabbitmq -p 5672:5672 -p 15672:15672 rabbitmq:3-management

使用-it参数运行docker，解决了该问题。