Framework 调用https

            var postObj = new
            {
                FolderName = folderName,
                FileName = fileName,
                FileContent = fileContent
            };

            var postJson = JsonConvert.SerializeObject(postObj);
            var responseJson = this.DoPostQuery(postJson, AppConfig.GetUploadFileUrl()).Result;
            var responseObject = JsonConvert.DeserializeObject<NextResult>(responseJson);
            if (responseObject == null)
            {
                BoLog.Instance.WriteErrorLog;
            }
            var fileId = 0;
            if (responseObject.Data != null)
            {
                _ = int.TryParse(responseObject.Data.FileId.ToString(), out int _fileId);
                if (_fileId <= 0)
                {
                    BoLog.Instance.WriteErrorLog;
                }
                fileId = _fileId;
            }

private async Task<string> DoPostQuery(string postJson, string url)
        {
            var baseUri = new Uri(url);
            var handler = new HttpClientHandler
            {
                UseDefaultCredentials = true
            };
            if (baseUri.Scheme.ToLower() == "https")
            {
                handler.ServerCertificateCustomValidationCallback = (sender, cert, chain, sslPolicyErrors) => { return true; };
            }
            var httpClient = new HttpClient(handler);

            httpClient.DefaultRequestHeaders.Authorization = new System.Net.Http.Headers.AuthenticationHeaderValue("Bearer", "");
            //httpClient.DefaultRequestHeaders.Authorization = new System.Net.Http.Headers.AuthenticationHeaderValue("Bearer", this.GetToken());

            var response = await httpClient.PostAsync(url, new StringContent(postJson, Encoding.UTF8, "text/json"));
            string responseJson = await response.Content.ReadAsStringAsync();
            //var responseJson = BoRequest.Instance.GetHtml(url, postJson, "application/json;");
            BoLog.Instance.WriteInfoLogDebug;

            return responseJson;
        }