1  public string HttpPost(string Url, string postDataStr)
 2     {
 3         try
 4         {
 5             HttpWebRequest request = (HttpWebRequest)WebRequest.Create(Url);
 6             request.Method = "POST";
 7             request.ContentType = "application/x-www-form-urlencoded";//請求方約定好
 
 8 
 9             byte[] bs = Encoding.UTF8.GetBytes(postDataStr);
10             request.ContentLength = bs.Length;
11             using (Stream reqStream = request.GetRequestStream())
12             {
13                 reqStream.Write(bs, 0, bs.Length);
14             }
15 
16             HttpWebResponse response;
 
17             response = (HttpWebResponse)request.GetResponse();      
18            
19             Stream myResponseStream = response.GetResponseStream();
20             StreamReader myStreamReader = new StreamReader(myResponseStream, Encoding.GetEncoding("utf-8"));//一般引數帶中文 用utf-8
21             string
 
 retString = myStreamReader.ReadToEnd();
22             myStreamReader.Close();
23             myResponseStream.Close();
24 
25             return retString;
26         }
27         catch (Exception ex)
28         {
29             LogHelper.WriteLog(ex.Message, "");
30         }
31         return null;
32     }