c# https请求忽略证书验证_如何在ssl时忽略证书检查

问题遇到的现象和发生背景
public string DoPost(string url, string param)
            {
                HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
                request.Accept = "*/*";
                request.ContentType = "application/json";
                //request.Timeout = Timeout.Infinite;
                request.Timeout = 10000;
                request.Method = "POST";
                request.Proxy = null;

            // string json = JsonConvert.SerializeObject(param);
            //byte[] data = Encoding.UTF8.GetBytes(json);
            WriteLog("", "参数:" + param);
            byte[] data = Encoding.UTF8.GetBytes(param);
               WriteLog("", "返回:" + data);
              request.ContentLength = data.Length;
            
            //不校验SSL
            ServicePointManager.ServerCertificateValidationCallback = new System.Net.Security.RemoteCertificateValidationCallback(CheckValidationResult);

                using (Stream stream = request.GetRequestStream())
                {
                    stream.Write(data, 0, data.Length);
                    stream.Flush();
                }

                try
                {
                    using (StreamReader reader = new StreamReader(request.GetResponse().GetResponseStream()))
                    {
                        string result = reader.ReadToEnd();
                    WriteLog("", "返回:" + result);
                    return result;
                    }
                }
                catch (Exception ex)
                {
                WriteLog("", "异常2:" + ex);

                return "-1";
                }

            }

运行结果及报错内容

img

上面代码是C#网页请求跳过SSL证书验证

我想要达到的结果

还是报错,用了好多方法了,快两周了,再不解决出来,估计要被开了,铁铁们


request.ServerCertificateValidationCallback = (_s, _x509s, _x509c, _ssl) => { return true; };

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