1 public string GetPage(string posturl, string postData) 2 { 3 Stream outstream = null; 4 Stream instream = null; 5 StreamReader sr = null; 6 HttpWebResponse response = null; 7 HttpWebRequest request = null; 8 Encoding encoding = Encoding.UTF8; 9 byte[] data = encoding.GetBytes(postData); 10 // 准备请求... 11 try 12 { 13 // 设置参数 14 request = WebRequest.Create(posturl) as HttpWebRequest; 15 CookieContainer cookieContainer = new CookieContainer(); 16 request.CookieContainer = cookieContainer; 17 request.AllowAutoRedirect = true; 18 request.Method = "POST"; 19 request.ContentType = "application/x-www-form-urlencoded"; 20 request.ContentLength = data.Length; 21 outstream = request.GetRequestStream(); 22 outstream.Write(data, 0, data.Length); 23 outstream.Close(); 24 //发送请求并获取相应回应数据 25 response = request.GetResponse() as HttpWebResponse; 26 //直到request.GetResponse()程序才开始向目标网页发送Post请求 27 instream = response.GetResponseStream(); 28 sr = new StreamReader(instream, encoding); 29 //返回结果网页（html）代码 30 string content = sr.ReadToEnd(); 31 string err = string.Empty; 32 Response.Write(content); 33 return content; 34 } 35 catch (Exception ex) 36 { 37 string err = ex.Message; 38 return string.Empty; 39 } 40 }