使用C#从RabbitMQ中的队列中获取单个消息的代码

using RabbitMQ.Client;
using RabbitMQ.Client.Events;

var factory = new ConnectionFactory()
{
    HostName = "your_rabbitmq_host",
    UserName = "your_username",
    Password = "your_password"
};

using (var connection = factory.CreateConnection())
{
    // 在连接上创建一个通道
    using (var channel = connection.CreateModel())
    {
        // 声明要消费的队列
        channel.QueueDeclare(queue: "your_queue_name",
                             durable: false,
                             exclusive: false,
                             autoDelete: false,
                             arguments: null);

        // 创建一个消费者
        var consumer = new EventingBasicConsumer(channel);

        // 定义接收到消息的事件处理程序
        consumer.Received += (model, ea) =>
        {
            var body = ea.Body.ToArray();
            var message = Encoding.UTF8.GetString(body);
            Console.WriteLine("接收到的消息： {0}", message);
        };

        // 启动消费者
        channel.BasicConsume(queue: "your_queue_name",
                             autoAck: true,
                             consumer: consumer);

        Console.WriteLine("按下任意键退出...");
        Console.ReadLine();
    }
}