401错误从代码中使用REST服务但在浏览器中工作 [英] 401 Error Consuming REST service from code but works in browser

问题描述

我正在尝试从其他公司使用REST服务。当我在浏览器中使用链接时，它工作正常。但是从代码访问时我收到401错误。我究竟做错了什么？我是否需要在Web应用程序的web.config中添加内容？

  string  URL = < span class =code-string> @  https://hdapps-qa.homedepot.com/MYTHDPassport/rs/identity/isSessionValid?thdsso=TEST&callingProgram = PSC&安培;提交=提交; 
 HttpWebRequest req = WebRequest.Create（URL）
  as  HttpWebRequest; 
  string  result =  null ; 
 req.Method =   GET; 
 req.UseDefaultCredentials =  true ; 
 req.PreAuthenticate =  false ; 
 req.Credentials = CredentialCache.DefaultCredentials; 
 使用（HttpWebResponse resp = req.GetResponse（）
  as  HttpWebResponse）
 {
 StreamReader reader = 
  new  StreamReader（resp.GetResponseStream（））; 
 result = reader.ReadToEnd（）; 
} 

解决方案

想出来。如果会话无效，则REST服务返回响应代码401。所以我抓住了这个异常并处理它。感谢。

I am trying to consume a REST service from another company. When I use the link in the browser it works fine. However I get the 401 error when accessing from code. What am I doing wrong? Do I need to add something to the web.config of the web app?

string URL = @"https://hdapps-qa.homedepot.com/MYTHDPassport/rs/identity/isSessionValid?thdsso=TEST&callingProgram=PSC&Submit=Submit";
            HttpWebRequest req = WebRequest.Create(URL)
                                 as HttpWebRequest;
            string result = null;
            req.Method = "GET";
            req.UseDefaultCredentials = true;
            req.PreAuthenticate = false;
            req.Credentials = CredentialCache.DefaultCredentials;
            using (HttpWebResponse resp = req.GetResponse()
                                          as HttpWebResponse)
            {
                StreamReader reader =
                    new StreamReader(resp.GetResponseStream());
                result = reader.ReadToEnd();
            }

解决方案

Figured it out. The REST Service is returning a response code of 401 if the session is not valid. So I am catching that exception and handling it. Thanks.

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