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,p_w_picpath/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
详解请参考:http://www.crifan.com/set_accept_encoding_header_to_gzip_deflate_return_messy_code/