获取网页源码

                      Uri   uri   =   new   Uri("http://localhost:3501/Default.aspx"); 
                        HttpWebRequest   hwReq   =   (HttpWebRequest)WebRequest.Create(uri); 
                        HttpWebResponse   hwRes   =   (HttpWebResponse)hwReq.GetResponse();
                        hwReq.Method = "GET";
                        hwReq.KeepAlive   =   false; 
                        StreamReader   reader   =   new   StreamReader(hwRes.GetResponseStream(),            System.Text.Encoding.GetEncoding("UTF-8"));
                       string  source=  reader.ReadToEnd(); 调式了一下发现hwRes.ContentLength=532,但获取的源码(source)为空，hwRes.GetResponseStream()一句执行的过程中有异常+Length “hwRes.GetResponseStream().Length”引发了“System.NotSupportedException”类型的异常 long {System.NotSupportedException}，怎么改正能获得源码

解决方案 »

  1.   

     var wClient = new System.Net.WebClient();
     string xmlResult = wClient.DownloadString(url);
      

  2.   

            public static string GetHtml(string url, Encoding encoding)
            {
                WebRequest request;
                request = WebRequest.Create(url);
                request.Credentials = CredentialCache.DefaultCredentials;
                WebResponse response;
                response = request.GetResponse();
                return new StreamReader(response.GetResponseStream(), encoding).ReadToEnd();
            }
      

  3.   


      hwReq.KeepAlive = false;试试
      

  4.   

                string rl;
                WebRequest Request = WebRequest.Create(url);
                WebResponse Response = Request.GetResponse();
                Stream resStream = Response.GetResponseStream();            StreamReader sr = new StreamReader(resStream, Encoding.UTF8);
                rl = sr.ReadToEnd();