文件流操作代码

            System.IO.Stream stream = Request.InputStream;
            stream.Position = 0;
            System.IO.Compression.GZipStream zipStream = new System.IO.Compression.GZipStream(stream, System.IO.Compression.CompressionMode.Decompress);
            System.IO.StreamReader sr = new System.IO.StreamReader(zipStream, System.Text.Encoding.UTF8);
            String tmp = sr.ReadToEnd();
            sr.Close();
            zipStream.Close();
            stream.Close();





            string path = AppDomain.CurrentDomain.BaseDirectory;
            //如果不存在，则创建目录
            if (!System.IO.Directory.Exists(path + "Log/"))
            {
                System.IO.Directory.CreateDirectory(path + "Log/");
            }
            System.IO.FileStream fs = new System.IO.FileStream(path + "\\Log/hotelStatelog" + DateTime.Now.ToString("yyyyMMddHHmmss") + ".txt", System.IO.FileMode.Append);
            System.IO.StreamWriter streamWriter = new System.IO.StreamWriter(fs);
            streamWriter.BaseStream.Seek(0, System.IO.SeekOrigin.End);
            streamWriter.WriteLine(DateTime.Now.ToString() + " " + tmp);
            streamWriter.Flush();
            streamWriter.Close();
            fs.Close();