在C＃中开发的.net webservices中出现'未授权'错误。

Question

HTTP状态401请求失败：未经授权。为什么？

TravelCodesTranslator ws = GetEncodeDecodeWS(); 

// Create and set up the credentials for XmlSelectWebService 
string UserName = "username"; 
string Password = "pwd"; 
// Xml Select uses Basic Authentication 
NetworkCredential credentials = new NetworkCredential(UserName, Password); 
CredentialCache cc = new CredentialCache(); 
ws.PreAuthenticate = true; 
ws.Credentials = credentials; 

XmlElement response; 

if (_requestType == "Encode") 
{ 
    response = ws.Encode(request.DocumentElement); // got error of 
                // "The request failed 
                // with HTTP status 401: 
                // Unauthorized." 
} 
else 
{ 
    response = ws.Decode(request.DocumentElement); 
} 

Answer 1

变化

ws.Credentials = System.Net.CredentialCache.DefaultNetworkCredentials; 

到

​​

提示：该错误信息是很清楚。它说你的凭据不正确。然后我会检查用户名和密码是否正确。如果它们是正确的，那么我会看看它们是否正确地分配给请求。