「嘗試上傳文件時，遠程服務器返回錯誤：（401）未經授權」錯誤

Question

我發現了很多關於（401）未授權錯誤的問題，但他們中沒有人向我解釋如何診斷問題。

我創建了一個新的MVC ASP.net應用程序，以瞭解如何將文件上傳到SharePoint文件夾。截至目前，我似乎無法能夠將文件從 複製C：\ testfolder \ file.txt的到 C：\ testfolder \ UPLOADEDFILES

這裏是我做了，我送的方法源文件路徑和目標文件夾：

//Flag to indicate whether file was uploaded successfuly or not 
     bool isUploaded = true; 
     try 
     { 
      // Create a PUT Web request to upload the file. 
      WebRequest request = WebRequest.Create(targetDocumentLibraryPath); 

      //Set credentials of the current security context 
      request.PreAuthenticate = true; 
      request.UseDefaultCredentials = true; 
      ICredentials credentials = new NetworkCredential("Username", "password", "Domain"); //I used my username and password here 
      request.Credentials = credentials; 
      //request.Credentials = CredentialCache.DefaultCredentials; 
      request.Method = "PUT"; 

      // Create buffer to transfer file 
      byte[] fileBuffer = new byte[1024]; 

      // Write the contents of the local file to the request stream. 
      using (Stream stream = request.GetRequestStream()) 
      { 
       //Load the content from local file to stream 
       using (FileStream fsWorkbook = File.Open(sourceFilePath, FileMode.Open, FileAccess.Read)) 
       { 
        //Get the start point 
        int startBuffer = fsWorkbook.Read(fileBuffer, 0, fileBuffer.Length); 
        for (int i = startBuffer; i > 0; i = fsWorkbook.Read(fileBuffer, 0, fileBuffer.Length)) 
        { 
         stream.Write(fileBuffer, 0, i); 
        } 

       } 
      } 

      // Perform the PUT request 
      WebResponse response = request.GetResponse(); 

      //Close response 
      response.Close(); 
     } 
     catch (Exception ex) 
     { 
      //Set the flag to indiacte failure in uploading 
      isUploaded = false; //The remote server returned an error: (401) Unauthorized. 
     } 

     //Return the final upload status 
     return isUploaded; 
    } 

我試過如下：

• 更改文件夾的權限，能夠寫/讀取它們爲所有用戶。
• 使用其他文件夾位置（SharePoint，本地驅動器，網絡驅動器）將文件上傳到。

有關如何解決此問題的任何想法？任何有關如何調試問題的預期也值得讚賞。

更新：可能是我的帳戶被設置爲IIS中的應用程序池帳戶。我仍然不確定問題是什麼。

Answer 1

我決定嘗試新的方法和使用httpposted文件和.saveAs（）描述here

Answer 2

這不會像代理設置會嗎？

你需要默認的代理設置添加到您的

WebRequest 

而且你需要添加

<system.net> 
    <defaultProxy useDefaultCredentials="true" /> 
</system.net> 

要在Web配置？

這可能有幫助。

How should I set the default proxy to use default credentials?