C# HttpClient 带证书https 请求

https://blog.csdn.net/mgy_2601907/article/details/100988387

//导入证书
WebRequestHandler handler = new WebRequestHandler();
string certificateFileName = 此处为存储证书的路径//Config.Read("certificateFileName");
//根据指定证书文件创建证书
X509Certificate x509Certificate = X509Certificate.CreateFromCertFile(certificateFileName);
handler.ClientCertificates.Add(x509Certificate);

ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;
PS:在创建HttpClient之前加入此段代码即可
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原文链接：https://blog.csdn.net/mgy_2601907/article/details/100988387