/// <summary>/// 复制流/// </summary>/// <param name="input">原始流</param>/// <param name="output">目标流</param>public static void CopyStream(System.IO.Stream input, System.IO.Stream output){byte[] buffer = new byte[2000];int len;while ((len = input.Read(buffer, 0, 2000)) > 0){output.Write(buffer, 0, len);}output.Flush();}/// <summary>/// 压缩字节数组/// </summary>/// <param name="sourceByte">需要被压缩的字节数组</param>/// <returns>压缩后的字节数组</returns>private static byte[] compressBytes(byte[] sourceByte){MemoryStream inputStream = new MemoryStream(sourceByte);Stream outStream = compressStream(inputStream);byte[] outPutByteArray = new byte[outStream.Length];outStream.Position = 0;outStream.Read(outPutByteArray, 0, outPutByteArray.Length);outStream.Close();inputStream.Close();return outPutByteArray;}/// <summary>/// 解压缩字节数组/// </summary>/// <param name="sourceByte">需要被解压缩的字节数组</param>/// <returns>解压后的字节数组</returns>private static byte[] deCompressBytes(byte[] sourceByte){MemoryStream inputStream = new MemoryStream(sourceByte);Stream outputStream = deCompressStream(inputStream);byte[] outputBytes = new byte[outputStream.Length];outputStream.Position = 0;outputStream.Read(outputBytes, 0, outputBytes.Length);outputStream.Close();inputStream.Close();return outputBytes;}/// <summary>/// 压缩流/// </summary>/// <param name="sourceStream">需要被压缩的流</param>/// <returns>压缩后的流</returns>private static Stream compressStream(Stream sourceStream){MemoryStream streamOut = new MemoryStream();ZOutputStream streamZOut = new ZOutputStream(streamOut, zlibConst.Z_DEFAULT_COMPRESSION);CopyStream(sourceStream, streamZOut);streamZOut.finish();return streamOut;}/// <summary>/// 解压缩流/// </summary>/// <param name="sourceStream">需要被解压缩的流</param>/// <returns>解压后的流</returns>private static Stream deCompressStream(Stream sourceStream){MemoryStream outStream = new MemoryStream();ZOutputStream outZStream = new ZOutputStream(outStream);CopyStream(sourceStream, outZStream);outZStream.finish();return outStream;}