4.Direct交换机之使用指定routingkey完成日志记录场景

标题 :

4.Direct交换机之使用指定routingkey完成日志记录场景

目录 :

RabbitMQ

序号 :

4

        const string logOthersQueueName = "log-queue-others";

​

​

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Direct的交换机

channel.ExchangeDeclare(exchangeName, ExchangeType.Direct, true, false, null);

​

​

//定义一个队列,将用于存放日志级别为 Warn,Info,Debug的日志

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

​

​

​

//将debug，info，warn 都绑定到log-queue-others"队列中

var routingKeys = new[] { "info", "warn", "debug" };

foreach (var routingKey in routingKeys)

{

channel.QueueBind(logOthersQueueName, exchangeName, routingKey, 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] Received {0} " + DateTime.Now, message);

channel.BasicAck(ea.DeliveryTag, false);

};

channel.BasicConsume(queue: logOthersQueueName, false, consumer: consumer);

​

​

Console.WriteLine(" Press [enter] to exit.");

Console.ReadLine();

}

}

}

​

- 这里我们把log-queue-others队列绑定到了交换机上,并指定了routingKey为info,warn和debug.这样会产生三组路由.info,warn,debug三种级别的日志均被路由到log-queue-others队列上
- 按照预期设计,将消费发送序号!=10的倍数的日志.
![](https://www.showdoc.cc/server/api/common/visitfile/sign/0461d279c67986a58dce83d93c7db102?showdoc=.jpg)
​
###引用链接
https://www.rabbitmq.com/tutorials/tutorial-four-dotnet.html