using System.IO;

using System.Net;

/// <summary>

        /// HttpWebRequest发送Post请求

     /// </summary>

     /// <param name="postUrl"></param>

     /// <param name="paramData"></param>

     /// <param name="dataEncode"></param>

     /// <returns></returns>

        public static string PostWebRequest(string postUrl, string paramData, Encoding dataEncode)

        {

            string ret = string.Empty;

            byte[] byteArray = dataEncode.GetBytes(paramData);

            //转化

            HttpWebRequest webReq = (HttpWebRequest)WebRequest.Create(new Uri(postUrl));

            webReq.Method = "POST";

            webReq.ContentType = "application/x-www-form-urlencoded";

            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(), dataEncode);

            ret = sr.ReadToEnd();

            sr.Close();

            response.Close();

            newStream.Close();

            return ret; }

       /// <summary>

        /// WebClient发送Get请求，编码UTF8

       /// </summary>

       /// <param name="Url"></param>

       /// <returns></returns>

        public static string Get(string Url) {

            string result = "";

      

            HttpWebRequest httpReq;

            httpReq = (HttpWebRequest)WebRequest.Create(new Uri(Url));

            WebResponse wr = httpReq.GetResponse();

            Stream responseStream = wr.GetResponseStream();

            StreamReader respStreamReader = new StreamReader(responseStream);

            result = respStreamReader.ReadToEnd();

            responseStream.Dispose(); wr.Dispose();

            return result;

        }