遠程服務器返回錯誤 (401) 未經授權 解決方案

沒有權限 設置權限

WebClient client=new WebClient();
//NetworkCredential credentials = new NetworkCredential("名字", "密碼");
//client.Credentials = credentials;

 

未能為 SSL/TLS 安全通道建立信任的解決辦法
最簡單的辦法是:

1,先加入命名空間：

using System.Net.Security;
using System.Security.Authentication;
using System.Security.Cryptography.X509Certificates;

2，再重載CheckValidationResult方法，返回true

public bool CheckValidationResult(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors errors)
{ // 總是接受
     return true;
}

3,然后在HttpWebRequest req = (HttpWebRequest)HttpWebRequest.Create(url);前面加上如下一行代碼：

ServicePointManager.ServerCertificatidationCallback = new System.Net.Security.RemoteCertificatidationCallback(CheckValidationResult);//驗證服務器證書回調自動驗證

//ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(CheckValidationResult);