GZip对字符串压缩和解压

        /// <summary>
        /// 压缩
        /// </summary>
        /// <param name="value">需要压缩字符串</param>
        /// <returns>结果</returns>
        public static string Compression(string value)
        {
            byte[] data = Encoding.UTF8.GetBytes(value);
            using (MemoryStream ms = new MemoryStream())
            {
                using (GZipStream compressedzipStream = new GZipStream(ms, CompressionMode.Compress, true))
                {
                    compressedzipStream.Write(data, 0, data.Length);
                }
                return Convert.ToBase64String(ms.ToArray());
            }
        }

        /// <summary>
        /// 解压
        /// </summary>
        /// <param name="value">需要解压字符串</param>
        /// <returns>结果</returns>
        public static string Decompress(string value)
        {
            byte[] data = Convert.FromBase64String(value);
            using (MemoryStream ms = new MemoryStream(data))
            {
                using (GZipStream compressedzipStream = new GZipStream(ms, CompressionMode.Decompress))
                {
                    using (MemoryStream outBuffer = new MemoryStream())
                    {
                        byte[] block = new byte[1024];
                        int bytesRead = compressedzipStream.Read(block, 0, block.Length);
                        outBuffer.Write(block, 0, bytesRead);
                        return Encoding.UTF8.GetString(outBuffer.ToArray());
                    }
                }
            }
        }

        /// <summary>
        /// 解压(数据量过大的时候解压)
        /// </summary>
        /// <param name="value">需要解压字符串</param>
        /// <returns>结果</returns>
        public static string Decompress(string value)
        {
            byte[] data = Convert.FromBase64String(value);
            using (MemoryStream ms = new MemoryStream(data))
            {
                using (GZipStream compressedzipStream = new GZipStream(ms, CompressionMode.Decompress))
                {
                    using (MemoryStream outBuffer = new MemoryStream())
                    {
                        byte[] block = new byte[1024];
                        int bytesRead;
                        do
                        {
                            bytesRead = compressedzipStream.Read(block, 0, block.Length);
                            outBuffer.Write(block, 0, bytesRead);
                        } while (bytesRead > 0);
                        return Encoding.UTF8.GetString(outBuffer.ToArray());
                    }
                }
            }
        }

        /// <summary>
        /// 测试
        /// </summary>
        public static void TT()
        {
            var json = "{"Key":"Value"}";
            var ys = Compression(json);
            var jy = Decompress(ys);
        }