c#模拟Http请求

public object GetPost([FromBody]RequestTest request)
{
    return HttpHelper.HttpPostForm("http://localhost:56188/IDCardOCR/Test",request);
}

public static string BuildFrom(T requestFrom)
{
    string form = string.Empty;
    foreach (var property in requestFrom.GetType().GetProperties())
    {
        form += property.Name.ToLower() + "=" + property.GetValue(requestFrom).ToString() + "&";
    }
    form = form.TrimEnd(‘&‘);
    return form;
}

public static object HttpPostForm(string url, RequestTest requestFrom)
{
    string form = BuildFrom(requestFrom);
    HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
    request.Method = "POST";
    request.ContentType = "application/x-www-form-urlencoded";
    byte[] paramload = System.Text.Encoding.UTF8.GetBytes(form);
    request.ContentLength = paramload.Length;
    Stream writer = request.GetRequestStream();
    writer.Write(paramload, 0, paramload.Length);
    writer.Close();
    HttpWebResponse response = (HttpWebResponse)request.GetResponse();
    Stream s = response.GetResponseStream();
    StreamReader Reader = new StreamReader(s, Encoding.UTF8);
    object strValue = Reader.ReadLine();
    return strValue;
}

[HttpPost("Test")]
public int Test(Cup cup)
{
    return cup.a + cup.b;
}