基於Gzip的壓縮解壓縮幫助類

public class MsgCompressHelper
    {
        
        public static byte[] Compress(string str, Encoding encoding)
        {
            return Compress(ConvertStringToBytes(str, encoding));
        }

        public static string Decompress(byte[] bts, Encoding encoding)
        {
            return ConvertBytesToString(Decompress(bts), encoding);
        }

        public static byte[] Compress(byte[] uncompressed)
        {
            using (MemoryStream ms = new MemoryStream())
            using (GZipStream gzs = new GZipStream(ms, CompressionMode.Compress))
            {
                gzs.Write(uncompressed, 0, uncompressed.Length);
                gzs.Close();
                return ms.ToArray();
            }
        }
        public static byte[] Decompress(byte[] compressed)
        {
            byte[] buffer = new byte[4096];
            using (MemoryStream ms = new MemoryStream(compressed))
            using (GZipStream gzs = new GZipStream(ms, CompressionMode.Decompress))
            using (MemoryStream uncompressed = new MemoryStream())
            {
                for (int r = -1; r != 0; r = gzs.Read(buffer, 0, buffer.Length))
                    if (r > 0) uncompressed.Write(buffer, 0, r);
                return uncompressed.ToArray();
            }

        }

        public static byte[] ConvertStringToBytes(string str, Encoding encoding)
        {
            if (str == null)
                return null;

            if (encoding == null)
                throw new Exception("Input encoding cannot be null.");

            return encoding.GetBytes(str);
        }

        public static string ConvertBytesToString(byte[] bts, Encoding encoding)
        {
            if (bts == null || bts.Length <= 0)
                return null;

            if (encoding == null)
                throw new Exception("Input encoding cannot be null.");


            return encoding.GetString(bts);
        }

    }