c# - 如何添加自定义 header ，然后在兔子消息 header 中检索自定义 header

Question

我需要找到一种方法在自定义 header 中添加原始值，然后在兔子消息 header 中检索自定义 header 。理想情况下，我们应该这样。

到目前为止，我没有成功地尝试找到一种方法来做到这一点。

Exchange    Test.Exchange
Routing Key Test.Exchange.7752275b-2323-42bf-98a4
Redelivered ●
Properties  user_id:fc4c-4d9c-9e4e-ad881040d0c1
type:   Events.Exchange
message_id: b2aff0d2-c8f4-4627-9826-089799bab344
delivery_mode:  2
headers:    global_execution_id:    7752275b-2323-42bf-98a4-ba7a8b96f2de
sent:   2019-04-30T13:54:24.4098945Z
**origin:   Test_Origin**

content_encoding:   UTF-8
content_type:   application/json

Payload30 bytesEncoding: string {"$id":"2","tenantId":"3456"}

Answer 1

直接来自the tutorial :

In the following example, we publish a message with custom headers:

byte[] messageBodyBytes = System.Text.Encoding.UTF8.GetBytes("Hello, world!");

IBasicProperties props = model.CreateBasicProperties();
props.ContentType = "text/plain";
props.DeliveryMode = 2;
props.Headers = new Dictionary<string, object>();
props.Headers.Add("latitude",  51.5252949);
props.Headers.Add("longitude", -0.0905493);

model.BasicPublish(exchangeName,
                   routingKey, props,
                   messageBodyBytes);