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1.개발/1.C#

C# GZIP 압축

by 벅스쭌 2019. 7. 16.

압축        

        public static byte[] Compression(string str)
        {
            var rowData = Encoding.UTF8.GetBytes(str);
            byte[] compressed = null;
            using (var outStream = new MemoryStream())
            {
                using (var hgs = new GZipStream(outStream, CompressionMode.Compress))
                {
                    hgs.Write(rowData, 0, rowData.Length);
                }
                compressed = outStream.ToArray();
            }
            return compressed;
        }

해제

        public static byte[] Decompress(byte[] gzip)
        {
            using (GZipStream stream = new GZipStream(new MemoryStream(gzip), CompressionMode.Decompress))
            {
                const int size = 4096;
                byte[] buffer = new byte[size];
                using (MemoryStream memory = new MemoryStream())
                {
                    int count = 0;
                    do
                    {
                        count = stream.Read(buffer, 0, size);
                        if (count > 0)
                        {
                            memory.Write(buffer, 0, count);
                        }
                    }
                    while (count > 0);
                    return memory.ToArray();
                }
            }
        }

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