RabbitMQ 在.Net 中的使用

 

RabbitMQHelper

 public static class RabbitMQHelper
    {
        // 定义 RabbitMQ 基本参数 

        private static string HostName = "127.0.0.1";

        private static int Port = 5672;

        private static string UserName = "admin";

        private static string Password = "admin";

        private static byte[] ToBytes(string str) => Encoding.UTF8.GetBytes(str);

        /// <summary>
        /// 设置交换机
        /// </summary>
        /// <param name="exchange">交换机名称</param>
        /// <param name="type">direct fanout headers topic</param>
        public static void SetExchange(string exchange, string type)
        {
            using (var channel = BuildChannel())
            {
                channel.ExchangeDeclare(exchange, type, true, false);
            }
        }


        /// <summary>
        /// 设置队列
        /// </summary>
        /// <param name="queue">队列名称</param>
        /// <param name="exchange">交换机</param>
        public static void SetQueue(string queue, string exchange)
        {
            using (var channel = BuildChannel())
            {
                //定义队列名称 持久化：是 
                channel.QueueDeclare(queue, true, false, false, null);

                // 绑定队列
                channel.QueueBind(queue, exchange, queue, null);

            }
        }

        /// <summary>
        /// 设置队列
        /// </summary>
        /// <param name="queues">队列集合</param>
        /// <param name="exchange">交换机</param>
        public static void SetQueue(List<string> queues, string exchange)
        {
            using (var channel = BuildChannel())
            {
                foreach (var queue in queues)
                {
                    //定义队列名称 持久化：是 
                    channel.QueueDeclare(queue, true, false, false, null);

                    // 绑定队列
                    channel.QueueBind(queue, exchange, queue, null);

                }

            }
        }


        /// <summary>
        /// 发布
        /// </summary>
        /// <param name="exchange">交换机</param>
        /// <param name="queue">队列</param>
        /// <param name="message">消息体</param>
        public static void Publish(string exchange, string queue, string message)
        {
            using (var channel = BuildChannel())
            {
                channel.BasicPublish(exchange, queue, null, ToBytes(message));
            }
        }


        /// <summary>
        /// 订阅
        /// </summary>
        /// <param name="queue">队列</param>
        /// <param name="func">func</param>
        public static void Subscribe(string queue, Func<string, bool> func)
        {
            var channel = BuildChannel();

            //事件基本消费者
            EventingBasicConsumer consumer = new EventingBasicConsumer(channel);

            //接收到消息事件
            consumer.Received += (ch, ea) =>
            {
                var message = Encoding.UTF8.GetString(ea.Body);

                func.Invoke(message);

                    //Task.Run( () => { func.Invoke(message); });

                    //确认该消息已被消费
                    channel.BasicAck(ea.DeliveryTag, false);

            };

            //启动消费者 设置为手动应答消息
            channel.BasicConsume(queue, false, consumer);

        }

        private static IModel BuildChannel()
        {
            return new ConnectionFactory()
            {
                HostName = HostName,
                Port = Port,
                UserName = UserName,
                Password = Password

            }.CreateConnection().CreateModel();
        }

    }

 

具体使用

class Program
    {
        static void Main(string[] args)
        {
            //初始化交换机
            RabbitMQHelper.SetExchange("ServerDirect", "direct");

            // 初始化队列
            RabbitMQHelper.SetQueue("LogCenter", "ServerDirect");
            RabbitMQHelper.SetQueue("SMSCenter", "ServerDirect");
            RabbitMQHelper.SetQueue("EmailCenter", "ServerDirect");

            //发布消息

            for (int i = 0; i < 100; i++)
            {
                RabbitMQHelper.Publish("ServerDirect", "LogCenter", "log"+i);
            }  

            RabbitMQHelper.Publish("ServerDirect", "SMSCenter", "sms111111111");  


            Console.ReadKey();
        }
    }