C#利用RabbitMQ实现点对点消息传输

RabbitMQ做为消息代理,负责接收和转发消息,可以将RabbitMQ比喻为一个邮筒、一个邮局和一个邮递员。本文主要以一个简单的小例子,简述RabbitMQ实现消息传输的相关内容,仅供学习分享使用,如有不足之处,还请指正。

RabbmitMqSendHelper用于发送消息,如下所示:


public class RabbmitMqSendHelper : RabbitMqHelper
    {
        /// <summary>
        /// 发送消息
        /// </summary>
        /// <param name="msg"></param>
        /// <returns></returns>
        public bool SendMsg(string msg)
        {
            try
            {
                using (var conn = GetConnection())
                {
                    using (var channel = conn.CreateModel())
                    {
                        channel.QueueDeclare(queue: "ShortMsgQueue",
                                     durable: true,
                                     exclusive: false,
                                     autoDelete: false,
                                     arguments: null);
                        var body = Encoding.UTF8.GetBytes(msg);

                        channel.BasicPublish(exchange: "amq.direct",
                                             routingKey: "ShortMsgKey",
                                             basicProperties: null,
                                             body: body);

                        //Console.WriteLine(" [x] Sent {0}", message);
                    };
                };
                return true;
            }
            catch (Exception ex)
            {
                throw ex;
            }
        }
    }

RabbitMqReceiveHelper主要用于接收信息,如下所示:


public class RabbitMqReceiveHelper : RabbitMqHelper
    {
        public RabbitMqReceiveEventHandler OnReceiveEvent;

        private IConnection conn;

        private IModel channel;

        private EventingBasicConsumer consumer;

        public bool StartReceiveMsg()
        {
            try
            {
                conn = GetConnection();

                channel = conn.CreateModel();

                channel.QueueDeclare(queue: "ShortMsgQueue",
                                durable: true,
                                exclusive: false,
                                autoDelete: false,
                                arguments: null);

                consumer = new EventingBasicConsumer(channel);
                consumer.Received += (model, ea) =>
                {
                    var body = ea.Body.ToArray();
                    var message = Encoding.UTF8.GetString(body);
                    //Console.WriteLine(" [x] Received {0}", message);
                    if (OnReceiveEvent != null)
                    {
                        OnReceiveEvent(message);
                    }
                };
                channel.BasicConsume(queue: "ShortMsgQueue",
                                        autoAck: true,
                                        consumer: consumer);
                return true;
            }
            catch (Exception ex)
            {
                throw ex;
            }
        }
    }

作者:Alan.hsiang
出处:http://www.cnblogs.com/hsiang/

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