C# Http POST get

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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;
        }

C# Http POST get

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原文地址：http://www.cnblogs.com/Andy-Blog/p/5393642.html