POST提交方式

一.RestSharp(需要引入RestSharp.dll 文件)

   

   /       // <summary>
             /// </summary>
        /// <param name="uploadData">x</param>
        /// <param name="strFlag"></param>
        public void Upload(string uploadData,string upload_IP)
        {
            try
            {
                var client = new RestSharp.RestClient(upload_IP);
           
                var requesPost = new RestRequest("", Method.POST);

                 requesPost.AddParameter("application/x-www-form-urlencoded", uploadData, ParameterType.RequestBody);
                IRestResponse responsePost = client.Execute(requesPost);
                var responseContent = responsePost.Content;

           
            }
            catch (Exception ex)
            {
                
            }
        }

二.

  /// <summary>
 ///上传的格式为json字符串
        /// </summary>
        /// <param name="postUrl">请求地址</param>
        /// <param name="paramData">入参</param>
        /// <param name="dataEncode">编码方式</param>
        /// <returns></returns>
        public string PostWebRequest(string postUrl, string paramData, Encoding dataEncode)
        {
            string ret = string.Empty;
            try
            {
                byte[] byteArray = dataEncode.GetBytes(paramData); //转化
                HttpWebRequest webReq = (HttpWebRequest)WebRequest.Create(new Uri(postUrl));
                webReq.Method = "POST";
                webReq.ContentType = "application/json";

                webReq.ContentLength = byteArray.Length;
                Stream newStream = webReq.GetRequestStream();
                newStream.Write(byteArray, 0, byteArray.Length);//写入参数
                newStream.Close();
                HttpWebResponse response = (HttpWebResponse)webReq.GetResponse();
                StreamReader sr = new StreamReader(response.GetResponseStream(), Encoding.UTF8);
                ret = sr.ReadToEnd();
                sr.Close();
                response.Close();
                newStream.Close();
            }
            catch (Exception ex)
            {
                MessageBoxs.ShowError(ex.Message);
            }
            return ret;
        }