get请求：

#region  get请求         /// <summary>         /// get请求         /// </summary>         /// <param name="Url">请求地址</param>         /// <param name="postDataStr">请求参数</param>         /// <returns></returns>         public static string HttpGet(string Url, string postDataStr)         {             HttpWebRequest request = (HttpWebRequest)WebRequest.Create(Url + (postDataStr == "" ? "" : "?") + postDataStr);             request.Method = "GET";             request.ContentType = "text/html;charset=UTF-8";             #region 获取网页内容太大的话,就加下面这两句代码             request.Headers["Accept-Encoding"] = "gzip,deflate";              request.AutomaticDecompression = DecompressionMethods.GZip;             #endregion             HttpWebResponse response = (HttpWebResponse)request.GetResponse();             Stream myResponseStream = response.GetResponseStream();             StreamReader myStreamReader = new StreamReader(myResponseStream, Encoding.GetEncoding("utf-8"));             string retString = myStreamReader.ReadToEnd();             myStreamReader.Close();             myResponseStream.Close();             return retString;         }         #endregion

post请求：

#region  模拟Post提交         /// <summary>         /// 通过POST方式发送数据         /// </summary>         /// <param name="url">请求URL</param>         /// <param name="json">请求参数</param>         /// <returns></returns>         public static string HttpPost(string url, string strXML)         {             try             {                 Encoding encoding = Encoding.GetEncoding("UTF-8");                 HttpWebRequest request = (HttpWebRequest)WebRequest.Create(new Uri(url));                 byte[] buffer;                 buffer = encoding.GetBytes(strXML);                 request.Method = "Post";                 request.UserAgent = "Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/34.0.1847.137 Safari/537.36 LBBROWSER";                 request.ContentType = "application/json; charset=UTF-8";//application/x-www-form-urlencoded;charset=UTF-8                 request.Accept = "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8";                 request.Referer = "http://www.aramex.com/express/track-results.aspx";                 request.ContentLength = buffer.Length;                 Stream postStream = request.GetRequestStream();                 postStream.Write(buffer, 0, buffer.Length);                 postStream.Close();                 HttpWebResponse response = (HttpWebResponse)request.GetResponse();                 //返回信息                 StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.GetEncoding("UTF-8"));                 string strResponse = reader.ReadToEnd();                 reader.Close();                 response.Close();                 return strResponse;             }             catch (Exception ex)             {                 return ex.Message;             }         }         #endregion

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