C 檔案流壓縮解壓

2022-03-20 11:13:00 字數 2340 閱讀 7795

///

/// 檔案流壓縮解壓

///

public class ziphelper

///

/// deflate方式壓縮

///

//////壓縮品質級別(0~9)

///

public static stream deflate(stream stream, int level)

///

/// deflate方式壓縮

///

//////壓縮品質級別(0~9)

///

public static byte deflate(byte input, int level)

else

}catch (exception innerexception)

return result;

}#endregion

#region inflate解壓

///

/// inflate解壓

///

//////

public static byte inflate(byte input)

else

byte buffer = memorystream.getbuffer();

memorystream.close();

result = buffer;}}

}catch (exception innerexception)

return result;

}///

/// inflate解壓

///

//////

public static stream inflate(stream zipstream)

#endregion

#endregion

#region gzip壓縮

///

/// gzip壓縮

///

//////

public static void gzipcompress(stream srcstream, stream output)

///

/// gzip壓縮

///

//////壓縮品質級別(0~9)

///public static void gzipcompress(stream srcstream, int compresslevel, stream output)

不在有效的範圍(1-9)內, compresslevel));

}srcstream.position = 0l;

gzipoutputstream gzipoutputstream = new gzipoutputstream(output);

gzipoutputstream.setlevel(compresslevel);

try}

catch (exception ex)

srcstream.close();

gzipoutputstream.finish();

}///

/// gzip解壓

///

//////

public static void gzipdecompress(stream zipstream, stream outputstream)

}catch (exception ex)

zipstream.close();

gzipinputstream.close();

}#endregion

#region bzip2壓縮

///

/// bzip2壓縮

///

//////

///public static void bzip2compress(stream instream, stream outstream, int blocksize)

///

/// bzip2解壓

///

//////

public static void bzip2decompress(stream instream, stream outstream)

#endregion

private static byte streamtobytes(stream stream)

private static stream bytestostream(byte bytes)

private static void streamtofile(stream stream, string filename)

private static stream filetostream(string filename)

}

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