小编点评

**RabbitMQHelper** * 提供获取 RabbitMQ 连接的静态方法 `GetConnection()`。 * 在创建模型 `MqModel` 时，根据 `type`、`content` 两个属性设置消息类型和消息实体。 **MqModel** * 定义消息类型：1、2、3、4、5、6。 * 定义消息实体类型。 **PublishMsg** * 根据 `type`、`routingKey` 和 `et` 参数，实例化 `MqModel` 并将其转换为二进制数据。 * 使用 `BasicPublish()` 方法将消息发送到 RabbitMQ 中。 **总结** `RabbitMQHelper` 用于获取和创建 RabbitMQ 连接，以及根据 `type`、`routingKey` 和 `et` 参数发布消息。 `MqModel` 定义了消息类型和实体，`PublishMsg` 方法根据这些信息实例化 `MqModel` 并将其编码为二进制数据发送。

正文

一、RabbitMQHelper

  /// <summary>
    /// RabbitMQHelper 的摘要说明
    /// </summary>
    public class RabbitMQHelper
    {
        //主机
        private readonly static string host =  ConfigurationManager.AppSettings["MqHost"].ToString().Trim();
        //端口
        private readonly static string port = ConfigurationManager.AppSettings["MqPort"].ToString().Trim();
        //用户
        private readonly static string userName = ConfigurationManager.AppSettings["MqUser"].ToString().Trim();
        //密码
        private readonly static string passWord = ConfigurationManager.AppSettings["MqPwd"].ToString().Trim();
        //交换机
        private readonly static string exchangeName = ConfigurationManager.AppSettings["MqExchange"].ToString().Trim();
        //队列
        //private readonly static string queueName = ConfigurationManager.AppSettings["MqQueue"].ToString().Trim();

        //队列
        private readonly static string queueName1 = "Can_Gather";
        private readonly static string queueName2 = "Can_Tire";
        private readonly static string queueName3 = "Can_Fault";
        private readonly static string queueName4 = "Can_Alarm";
        private readonly static string queueName5 = "Can_Behavior";
        private readonly static string queueName6 = "Can_Violate";

        /// <summary>
        /// 获取RabbitMQ连接
        /// </summary>
        /// <returns></returns>
        public static IConnection GetConnection()
        {
            //实例化链接工厂
            var factory = new ConnectionFactory
            {
                HostName = host, //ip
                Port = 5672, // 端口
                UserName = userName, // 账户
                Password = passWord, // 密码
                VirtualHost = "/" ,  // 虚拟主机
                AutomaticRecoveryEnabled = true,//断开默认重连
                TopologyRecoveryEnabled = true
            };

            return factory.CreateConnection();
        }


        /// <summary>
        /// 建立链接
        /// </summary>
        /// <returns></returns>
        public static IModel CreateConnection()
        {
            var connection = RabbitMQHelper.GetConnection();
            var channel = connection.CreateModel();

            // 声明Direct交换机
            channel.ExchangeDeclare(exchangeName, "direct");

            // 声明创建队列
            channel.QueueDeclare(queueName1, false, false, false, null);
            channel.QueueDeclare(queueName2, false, false, false, null);
            channel.QueueDeclare(queueName3, false, false, false, null);
            channel.QueueDeclare(queueName4, false, false, false, null);
            channel.QueueDeclare(queueName5, false, false, false, null);
            channel.QueueDeclare(queueName6, false, false, false, null);

            // 绑定到交互机 指定routingKey
            channel.QueueBind(queue: queueName1, exchange: exchangeName, routingKey: "gather");//完成
            channel.QueueBind(queue: queueName2, exchange: exchangeName, routingKey: "tire");
            channel.QueueBind(queue: queueName3, exchange: exchangeName, routingKey: "fault");//完成
            channel.QueueBind(queue: queueName4, exchange: exchangeName, routingKey: "alarm");//完成
            channel.QueueBind(queue: queueName5, exchange: exchangeName, routingKey: "behavior");//完成
            channel.QueueBind(queue: queueName6, exchange: exchangeName, routingKey: "violate");
            return channel;
        }

    }

二、MqModel

 /// <summary>
    /// MqModel 的摘要说明
    /// </summary>
    public class MqModel
    {
        /// <summary>
        /// 消息类型，1：gather，2：behavior，3：alarm，4：fault，5：tire, 6:violate
        /// </summary>
        public int type { get; set; }

        /// <summary>
        /// 消息实体
        /// </summary>
        public object content { get; set; }
    }

三、PublishMsg

  /// <summary>
        /// 根据routingKey发布消息
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="type"></param>
        /// <param name="routingKey"></param>
        /// <param name="et"></param>
        private void PublishMsg<T>(int type,string routingKey, T et)
        {
            #region 发布MQ消息
            //按照消费端格式定义
            MqModel publishModel = new MqModel()
            {
                type = 1,
                content = et
            };
            //转换
            string jsonStr = JsonConvert.SerializeObject(publishModel);
            var body = Encoding.UTF8.GetBytes(jsonStr);//消息以二进制形式传输
            channel.BasicPublish(exchange: exchangeName, routingKey: routingKey, null, body);
            #endregion
        }