没有权限 设置权限
WebClient client=new WebClient();
//NetworkCredential credentials = new NetworkCredential("名字", "密码");
//client.Credentials = credentials;
未能为 SSL/TLS 安全通道建立信任的解决办法
最简单的办法是:
1,先加入命名空间：
using System.Net.Security;
using System.Security.Authentication;
using System.Security.Cryptography.X509Certificates;
2，再重载CheckValidationResult方法，返回true
public bool CheckValidationResult(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors errors)
{ // 总是接受
return true;
}
3,然后在HttpWebRequest req = (HttpWebRequest)HttpWebRequest.Create(url);前面加上如下一行代码：
ServicePointManager.ServerCertificatidationCallback = new System.Net.Security.RemoteCertificatidationCallback(CheckValidationResult);//验证服务器证书回调自动验证
//ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(CheckValidationResult);
转播
