在上次的 文章 中間單的介紹RabbitMQ 如何發送和接收訊息，今天我們要來介紹一下RabbitMQ的四種 Exchange以及其路由規則。 1. Fanout Exchange: 就像是廣播一樣，發送時會將資料送到有綁定Fanout Exchange的Queue中。 例如:發送資料到fanout.exchange，則queue-1和queue-2都會收到資料。 public void FanoutPublisher() { ConnectionFactory factory = new ConnectionFactory() { HostName = "localhost" }; using (IConnection connection = factory.CreateConnection()) { using (IModel channel = connection.CreateModel()) { channel.QueueDeclare(queue: "queue-1", durable: false, exclusive: false, autoDelete: false, arguments: null); channel.QueueDeclare(queue: "queue-2", durable: false, exclusive: false, autoDelete: false, arguments: null); channel.ExchangeDeclare(exchange: "fanout.exchange", type: ExchangeType.Fanout, durable: true, autoDelete: false); channel.QueueBind(queue: "queue-1