.net core 调用数字证书 使用X509Certificate2

.NET下面的 .netfromwork使用和asp.net core下使用方式不一样

配置文件中代码：

        public const string API_URL = "https://api.mch.weixin.qq.com/mmpaymkttransfers/promotion/transfers";
       /// <summary>
        /// 本地或者服务器的证书位置
        /// </summary>
        public const string CertPath = @"D:\apiclient_cert.p12";
        /// <summary>
        /// 本地或者服务器的证书密码
        /// </summary>
        public const string CApassword = "";

Build_Content()
  这个主要是传递的参数封装值

 public async Task<bool> Send_Transfer()
        {
            //HttpClient请求，在handler里添加X509Certificate2 证书，数据data是byte[] 类型，所以需要使用ByteArrayContent传入
            var handler = new HttpClientHandler();
            handler.ClientCertificateOptions = ClientCertificateOption.Manual;
            handler.SslProtocols = SslProtocols.Tls12;
            //获取证书路径
            //商户私钥证书，用于对请求报文进行签名
            try
            {
                handler.ClientCertificates.Add(new X509Certificate2(WeixinPay.CertPath, WeixinPay.CApassword, X509KeyStorageFlags.PersistKeySet | X509KeyStorageFlags.MachineKeySet));
            }
            catch (Exception e)
            {
                _logger.LogError(e.Message);
            }
            handler.SslProtocols = SslProtocols.Tls12 | SslProtocols.Tls11 | SslProtocols.Tls;
            handler.ServerCertificateCustomValidationCallback = (message, cert, chain, errors) => true;
            //post请求
            var client = new HttpClient(handler);
            ///////////////////////////////////////////////////////////
            //以下属于在.netfromwork环境下写法
           // ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(CheckValidationResult);
            //调用证书
            //X509Certificate2 cer = new X509Certificate2(WeixinPay.CertPath, WeixinPay.CApassword, X509KeyStorageFlags.PersistKeySet | X509KeyStorageFlags.MachineKeySet);
            //handler.ClientCertificates.Add(cer);
            ///////////////////////////////////////////////////////////
            response = await client.PostAsync(WeixinPay.API_URL, Build_Content());
            ///////////////////////////////////////////////////////////
            return response.IsSuccessStatusCode;
        }