HttpClient不接受授权标头(401未经授权)吗? [英] HttpClient not accepting Authorization headers (401 Unauthorized)?

问题描述

您好，我正在创建一个Xamarin.Forms移动应用程序，该应用程序将Android以.NET Standard作为我的代码共享方法.不幸的是，我正在使用的API在Postman中工作，但在System.Net.Http中使用HttpClient的C#中却无法工作.

Hi I am creating a Xamarin.Forms mobile app that targets Android with .NET Standard as my code sharing method. Unforunately the API I'm consuming works in Postman but doesn't work in C# using HttpClient from System.Net.Http.

邮递员请求使用以下标头起作用:

Postman request works using this header:

请求截图

我尝试了3种不同的方法，但是它们都仍然返回"401未经授权".我还检查了Android Manifest文件中的INTERNET权限.

I have tried 3 different approaches but they all still return "401 unauthorized". I've also checked the INTERNET permission in my Android Manifest file.

HttpClient.DefaultRequestHeaders.Add("Authorization", "Token e2eeb1aa9f32eb0ekgn353b6fadb772");
HttpClient.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Token", "e2eeb1aa9f32eb0ekgn353b6fadb772");
HttpClient.DefaultRequestHeaders.TryAddWithoutValidation("Authorization", "Token e2eeb1aa9f32eb0ekgn353b6fadb772");

推荐答案

请确保您的HTTP请求 URL 是否正确.有时您可能需要在结尾加上反斜杠('/'). 如果您在 HTTP客户端中错过了它，它将无法工作，但是 POSTMAN 将.

Please make sure your HTTP request URL is correct or not. Sometimes you may need a trailing backslash ( '/' ). If you missed it in HTTP client, will not work but POSTMAN will .

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