HttpClient超时时，在Web API控制器中请求会发生什么？

Question

我试图理解当发送请求的HttpClient在服务实际完成处理并发回响应之前，发送请求的HttpClient实际超时时，基于Web API的服务控制器接收到的请求将发生什么情况。

Answer 1

What happens is that the HttpClient will close the underlying connection and throw a TaskCancelledException . That exceptions StatusCode will indicate there has been a timeout.

On the WebAPI side, on the other hand, will notice the clients disconnection and set it's HttpResponse.ClientDisconnectedToken (which is of type CancellationToken ) to cancelled. More on that here

Answer 2

增加HttpClient.Timeout属性的值。