C# HttpWebRequest returns 错误 403

Question

我的应用程序的以下部分存在问题，returns 错误 403 作为 HttpWebRequest 的响应。你能告诉我为什么会出现这个错误吗？

                string url = "http://" + webServiceServerName + uri + "?extendedInfo=2";
                HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
                request.ContentType = "application/json";

                //Failed tries to fix this error 403, non of these fix the issue
                request.UserAgent = "[AnyWordThatIsMoreThan5Char]";
                request.UseDefaultCredentials = true;
                request.Accept = "*/*";


                //Get the headers associated with the request.
                WebHeaderCollection myWebHeaderCollection = request.Headers;
                //Add Custom header fields
                myWebHeaderCollection.Add("api-version","1.0");
                myWebHeaderCollection.Add("auth-key","XYZ");


                // Gets the stream associated with the response.            
                HttpWebResponse response = (HttpWebResponse)request.GetResponse();
                // response contains error 403

但是，当我使用以下命令在 powerShell 中发送相同的请求时，我得到了成功响应：

> $headers = @{"api-version"="1.0"; "auth-key"="XYZ"}
> Invoke-RestMethod -Uri "http://APIURL.Domanin.com?extendedinfo=2" -Headers $header -ContentType "application/json" -Method Get

Service           : Configured
Version           : 6.1.0.1
Transfer Database : Available
Logging Database  : Available
Client Database   : Configured
Fileshare         : Available

Answer 1

抱歉，如果这没有提示答案；所以不让我评论。

您确定 webServiceServerName + uri 的计算结果为 a.k.a。 "APIURL.Domanin.com"？也许该代码恰好最终尝试与不是您所追求的服务器通信，该服务器具有另一组 authentication/authorization 规则（HTTP-403 表示 "forbidden"）。

C# HttpWebRequest returns 错误 403

C# HttpWebRequest returns error 403

c#

asp.net-mvc

web-services

http

httpwebrequest