标题 :
5.Fanout交换机之新订单通知商户场景
目录 :
RabbitMQ
序号 :
5
const string newOrderQueueName = "neworder-queue-sms";
var connection = connectionFactory.CreateConnection();
var channel = connection.CreateModel();
//设置服务质量
channel.BasicQos(0, 1, false);
//定义一个类型为Fanout的交换机
channel.ExchangeDeclare(exchangeName, ExchangeType.Fanout, true, false, null);
//定义一个队列,将用于存放顾客下的订单
channel.QueueDeclare(queue: newOrderQueueName, durable: true, exclusive: false, autoDelete: false, arguments: null);
//将队列绑定到交换机上
channel.QueueBind(newOrderQueueName, exchangeName, "2", null);
//定义消费者
var consumer = new EventingBasicConsumer(channel);
consumer.Received += (model, ea) =>
{
var body = ea.Body;
var message = Encoding.UTF8.GetString(body);
Console.WriteLine(" [x] 短信消费者,需要把订单信息通过短信通知给商家. 这是订单信息:{0}" , message);
channel.BasicAck(ea.DeliveryTag, false);
};
channel.BasicConsume(queue: newOrderQueueName, false, consumer: consumer);
Console.WriteLine(" Press [enter] to exit.");
Console.ReadLine();
}
}
}
- 需要将交换机类型设置为ExchangeType.Fanout
- 需要将队列绑定到我们定义的fanout交换机上
### 另外的实验
- 忽略routingKey的实验，可以看到fanout交换机忽略了routingKey
```csharp
#发送
channel.BasicPublish(exchangeName, routingKey: "1", basicProperties: null, body: body);
#消费
channel.QueueBind(newOrderQueueName, exchangeName, "2", null);
channel.QueueBind(newOrderQueueName, exchangeName, "3", null);