http请求记录

对接一个第三方接口请求封装记录,但是使用Tests<T>()，Post<T>()方法都失败了，HttpPost()方法成功

前提：form-data 参数格式,

       #region  application类型请求
        public T Test<T>(string url, object form)
        {
            T result = default(T);
            var watch = Stopwatch.StartNew();
            try
            {
                //string requestString = JsonConvert.SerializeObject(form);
                string requestString = string.Empty;
                foreach (var property in form.GetType().GetProperties())
                {
                    requestString = requestString + property.Name.ToLower() + "=" + property.GetValue(form).ToString() + "&";
                    //dict.Add(property.Name.ToLower(), property.GetValue(form).ToString());
                }
                requestString = requestString.TrimEnd('&');


                using (var client = new System.Net.Http.HttpClient())
                {
                    //var request = new HttpRequestMessage(HttpMethod.Post, url) { Content = new FormUrlEncodedContent(dict) };
                    var request = HttpWebRequest.Create(url);
                    request.Method = "POST";
                    request.ContentType = "application/x-www-form-urlencoded";
                    byte[] data = Encoding.UTF8.GetBytes(requestString);
                    request.ContentLength = data.Length;
                    Stream newStream = request.GetRequestStream();
                    // Send the data.
                    newStream.Write(data, 0, data.Length);
                    var temp = request.GetResponse();
                    HttpWebResponse myResponse = (HttpWebResponse)request.GetResponse();
                    StreamReader reader = new StreamReader(myResponse.GetResponseStream(), Encoding.UTF8);
                    string content = reader.ReadToEnd();
                    Console.WriteLine(content);
                    Console.ReadLine();
                }
            }
            catch (Exception ex)
            {
                string temp = ex.Message;
            }
            return result;
        }
        #endregion

        #region multipart类型请求
        /// <summary>
        /// 把对象类型参数转为Dictionary<string, string> 类型
        /// </summary>
        /// <param name="form"></param>
        /// <returns></returns>
        private Dictionary<string, string> GetContentDictionary(object form)
        {
            var dict = new Dictionary<string, string>();
            foreach (var property in form.GetType().GetProperties())
            {
                dict.Add(property.Name.ToLower(), property.GetValue(form).ToString());
            }
            return dict;
        }
        public T Post<T>(object request, string url)
        { 
            var dic = GetContentDictionary(request);
            var result = PostMutipart<T>(url, dic);
            return default(T);
        }
        public T PostMutipart<T>(string requestUri, Dictionary<string, string> keyValue)
        {
            HttpClientHandler handler = new HttpClientHandler();
            handler.UseProxy = false;
            handler.UseCookies = false;
            System.Net.Http.HttpClient _httpClient = new System.Net.Http.HttpClient(handler) { Timeout = TimeSpan.FromSeconds(60) };
            var watch = Stopwatch.StartNew();
            T result = default(T);
            var statusCode = HttpStatusCode.OK;
            try
            {

                string responseBody = null;
                using (var multipartFormDataContent = new MultipartFormDataContent())
                {
                    foreach (var keyValuePair in keyValue)
                    {
                        multipartFormDataContent.Add(new StringContent(keyValuePair.Value),
                            String.Format(""{0}"", keyValuePair.Key));
                    }
                    var response = _httpClient.PostAsync(requestUri, multipartFormDataContent).GetAwaiter().GetResult();
                    responseBody = response.Content.ReadAsStringAsync().GetAwaiter().GetResult();
                    statusCode = response.StatusCode;
                    if (responseBody != null && responseBody.Length > 0)
                    {
                        result = Newtonsoft.Json.JsonConvert.DeserializeObject<T>(responseBody);
                    }
                }
            }
            catch (Exception ex)
            {
                result = default(T);
            }
            return result;
        }
        #endregion

        #region WebRequest 请求
        public string HttpPost(string url, string postData)
        {
            string result = string.Empty;
            try
            {
                var data = Encoding.UTF8.GetBytes(postData);
                WebRequest res = WebRequest.Create(url);
                res.ContentType = "application/x-www-form-urlencoded";
                res.Method = "post";
                res.UseDefaultCredentials = true;
                res.ContentLength = data.Length;
                var task = res.GetResponseAsync();
                using (var stream = res.GetRequestStream())
                {
                    stream.Write(data, 0, data.Length);
                }

                WebResponse rep = task.Result;
                Stream respStream = rep.GetResponseStream();
                using (StreamReader reader = new StreamReader(respStream, Encoding.Default))
                {
                    result = reader.ReadToEnd();
                }
            }
            catch (Exception ex)
            {
                throw new Exception(ex.ToString());
            }

            return result;
        }
        #endregion

 补充Post方法的参数类型

        public TokenReponse getToken(TokenRequest request)
        {
            string requestString = string.Empty;
            foreach (var property in request.GetType().GetProperties())
            {
                requestString = requestString + property.Name.ToLower() + "=" + property.GetValue(request).ToString() + "&";
                //dict.Add(property.Name.ToLower(), property.GetValue(form).ToString());
            }
            requestString = requestString.TrimEnd('&');
            var response = HttpPost(url, requestString);
            return null;
        }