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我需要在c＃中进行卷曲调用 下面是 curl -s -S -F“pv = 6”-F“acct = test”-F“app = applyload”-F“fmt = tab_delimited”-F“data=@sample.tsv”

  public string CreateLoadnew()
    {

           NameValueCollection nvc = new NameValueCollection();
        nvc.Add("pv", "6");
        nvc.Add("acct", "test");
        nvc.Add("app", "applyload");
        nvc.Add("fmt", "tab_delimited");
        string[] files = new string[] { @"C:\Files\sample.tsv" };
        return UploadFilesToRemoteUrl("https://test.aljex.com/api.php", files, nvc);

    }
    public static string UploadFilesToRemoteUrl(string url, string[] files, NameValueCollection formFields = null)
    {
        ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls | SecurityProtocolType.Tls11 | SecurityProtocolType.Tls12 | SecurityProtocolType.Ssl3;
        string boundary = "----------------------------" + DateTime.Now.Ticks.ToString("x");

        HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
        request.ContentType = "multipart/form-data; boundary=" +
                                boundary;
        request.Method = "POST";
        request.KeepAlive = true;
        request.UserAgent = "curl/7.33.0";
        Stream memStream = new System.IO.MemoryStream();

        var boundarybytes = System.Text.Encoding.ASCII.GetBytes("\r\n--" +
                                                                boundary + "\r\n");
        var endBoundaryBytes = System.Text.Encoding.ASCII.GetBytes("\r\n--" +
                                                                    boundary + "--");


        string formdataTemplate = "\r\n--" + boundary +
                                    "\r\nContent-Disposition: form-data; name=\"{0}\";\r\n\r\n{1}";

        if (formFields != null)
        {
            foreach (string key in formFields.Keys)
            {
                string formitem = string.Format(formdataTemplate, key, formFields[key]);
                byte[] formitembytes = System.Text.Encoding.UTF8.GetBytes(formitem);
                memStream.Write(formitembytes, 0, formitembytes.Length);
            }
        }

        string headerTemplate =
            "Content-Disposition: form-data; name=\"{0}\"; filename=\"{1}\"\r\n" +
            "Content-Type: text/tab-separated-values\r\n\r\n";

        for (int i = 0; i < files.Length; i++)
        {
            memStream.Write(boundarybytes, 0, boundarybytes.Length);
            var header = string.Format(headerTemplate, "uplTheFile", files[i]);
            var headerbytes = System.Text.Encoding.UTF8.GetBytes(header);

            memStream.Write(headerbytes, 0, headerbytes.Length);

            using (var fileStream = new FileStream(files[i], FileMode.Open, FileAccess.Read))
            {
                var buffer = new byte[1024];
                var bytesRead = 0;
                while ((bytesRead = fileStream.Read(buffer, 0, buffer.Length)) != 0)
                {
                    memStream.Write(buffer, 0, bytesRead);
                }
            }
        }

        memStream.Write(endBoundaryBytes, 0, endBoundaryBytes.Length);
        request.ContentLength = memStream.Length;

        using (Stream requestStream = request.GetRequestStream())
        {
            memStream.Position = 0;
            byte[] tempBuffer = new byte[memStream.Length];
            memStream.Read(tempBuffer, 0, tempBuffer.Length);
            memStream.Close();
            requestStream.Write(tempBuffer, 0, tempBuffer.Length);
        }

        using (var response = request.GetResponse())
        {
            Stream stream2 = response.GetResponseStream();
            StreamReader reader2 = new StreamReader(stream2);
            return reader2.ReadToEnd();
        }
    }

如果未使用fiddler的响应总是返回一个空字符串没有错误

使用我得到的小提琴手 建立HTTP / 1.1 200连接 FiddlerGateway：直接 StartTime：17：39：18.828 连接：关闭

fiddler.network.https＆GT;对test.aljex.com（＃109）的HTTPS握手失败。 System.IO.IOException从传输流中收到意外的EOF或0字节。

视觉工作室错误 https://www.screencast.com/t/BJgklp4wX

对我做错的任何建议

此致