帮看看 HttpWebRequest 相关的一段代码

C# code

        static public int GetHtml(HttpWebRequest request, ref string strContent)        {            try            {                strContent = "";                HttpWebResponse response = (HttpWebResponse)request.GetResponse();                Stream responseStream = response.GetResponseStream();                if (response.ContentEncoding.ToLower().Contains("gzip"))                {                    responseStream = new GZipStream(responseStream, CompressionMode.Decompress, true);                }                else if (response.ContentEncoding.ToLower().Contains("deflate"))                {                    responseStream = new DeflateStream(responseStream, CompressionMode.Decompress);                }                string strCharacterSet = response.CharacterSet;                if (strCharacterSet.Contains("ISO-8859-1"))                {                    strCharacterSet = "gbk";                }                StreamReader readStream = new StreamReader(responseStream, System.Text.Encoding.GetEncoding(strCharacterSet));                strContent = readStream.ReadToEnd();                responseStream.Close();                response.Close();                return 0;            }            catch(Exception ex)            {                CMyFun.WriteLog(ex.ToString());                return -1;            }        }

偶尔出错， 什么原因？
-----------------------------------------------------
2011-08-11 18:28:15 System.ArgumentException: 基流不可读。
参数名: stream
在 System.IO.Compression.DeflateStream..ctor(Stream stream, CompressionMode mode, Boolean leaveOpen, Boolean usingGZip)
在 System.IO.Compression.GZipStream..ctor(Stream stream, CompressionMode mode, Boolean leaveOpen)
在 Robot.CMyFun.GetHtml(HttpWebRequest request, String& strContent) 位置 D:\workspace\WOWRobot_20110218_multi\CMyFun.cs:行号 63




[解决办法]
或许是服务器端压缩时有一些bug吧。服务器端跟你客户端使用了同一个压缩/解压缩工具吗？