非对称java压缩 [英] Non symmetric java compression
本文介绍了非对称java压缩的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我有一个数据示例：
byte[] b = new byte[]{120, 1, -67, -107, -51, 106, 20, 81, 16, -123, 107, 18, -51, -60, 31, -30, 117, -4, -53, -60, -123, 25, 70, 71, 23, -111, 89, 12, 8, -83, 49, 4, -14, -93, -63, 73, 32, 89, -55, -112, -123, 10, -30, 66, 69, -110, 69, -64, -107, -77, 8, -72, 21, 23, -82, 5, -97, -64, 55, -48, -73, -16, 97, 4, -3, 14, -23, -110, 75, 59, 125, 39, 8, -10, -123, 51, -73, -86, -85, -6, 84, -99, -22, -18, 59, 53, 51, 27, 2, 95, 7, 24, 95, -36, 97, 95, 9, 102, -17, 46, -101, -51, -81, 109, -82, -101, -43, 44, -100, 54, -5, -56, -11, 9, -128, 105, -81, -128, -42, -25, -109, 102, -121, -109, 102, 63, 107, 102, 75, 32, 94, 79, -66, -43, 109, -15, -57, 9, 91, -79, 55, -74, 111, -49, -71, 103, -51, 54, 13, 58, -42, 121, 112, 22, 76, 3, -15, 5, -32, -21, 20, 70, 0, -94, 19, -58, -59, -59, 19, -128, -81, 51, 24, 1, -8, -3, 23, -80, -107, 35, -1, 38, -104, -51, 109, 54, 123, -12, -6, -67, 54, -69, 1, 60, -57, 109, 122, 27, -34, -29, -70, 122, -68, 10, 2, 80, 111, -102, -45, 29, 16, -64, 1, 40, -6, 15, -71, -26, -15, 45, -20, 103, 5, -1, 65, -28, 95, -57, 126, 90, -16, -69, -111, -33, -64, 46, -6, 47, -93, -72, -6, -39, 3, -9, -127, -6, 92, -52, -9, 37, -10, 89, -96, -72, -18, -9, 62, 93, 91, 29, 109, 110, 19, 30, -34, -30, -57, -11, 23, 103, -12, -31, -21, 119, -94, -57, -97, 81, 32, -9, 54, 120, 12, -60, -21, -21, 87, -66, 120, 93, -84, 73, 70, -117, -89, -47, -78, -7, 100, 94, 11, 21, 77, 107, 48, -21, 70, 50, -81, 78, -4, 72, 113, -102, 79, 111, 64, -99, -38, 1, -108, -51, 76, -3, -118, -83, 5, -92, -61, -25, -12, 63, 103, -42, -50, -21, -92, 102, -74, 64, 39, 61, -69, 6, -82, 36, 103, -47, 67, -35, 2, 95, 77, 27, -92, -8, -26, -120, 31, 77, 54, -51, -41, -96, -26, 28, -75, -37, -96, 108, 102, -102, -105, -66, -45, 94, -82, -93, -118, -103, 101, -44, -46, -5, -107, -46, -72, 74, 70, -97, 39, -39, -25, 61, 74, -27, -11, -19, -100, -83, -14, 5, 101, 32, -107, -41, 37, -34, 33, -73, 51, -122, -81, 67, -51, 46, -75, 51, 80, 54, -77, 14, -67, 79, -125, 126, -82, -93, -118, -103, 109, 80, 75, 103, 89, 74, -29, 14, 25, 3, -69, 4, 102, -110, 121, 3, -101, -78, 29, -72, -60, -103, -30, 91, 38, -98, -111, -101, -115, -31, -53, -88, -71, 76, -19, 13, 80, 54, 51, 61, 115, -83, 1, -112, -114, 127, -103, 25, -57, -112, 40, -2, -36, 91, -117, 108, -98, -57, 95, 103, 126, -109, -8, 39, -32, 103, -70, -50, -20, -94, -1, 54, -118, 43, 95, 126, -103, 6, -113, 59, 79, 21, 26, -12, 31, 16, -9, 124, 119, -124, 31, 107, 80, 126, 74, -125, -57, -99, -89, 10, 13, -21, -123, -98, -73, 71, -8, -79, 6, -27, -89, 52, 120, -36, 121, -86, -48, -80, 91, -24, -7, -59, 8, 63, -42, -96, -4, -108, 6, -113, 59, -49, 113, 52, -52, -64, 121, 17, 104, 5, 32, -5, 55, -108, 74, -2, -44};
它只是一个压缩的EMF图像。我尝试通过代码解压缩它：
it's just a compressed EMF image. I try to decompress it by code:
InflaterInputStream iis = new InflaterInputStream(new ByteArrayInputStream(b));
ByteArrayOutputStream baos = new ByteArrayOutputStream();
byte[] buf = new byte[4096];
int length = 0;
while ((length = iis.read(buf)) > 0) {
baos.write(buf, 0, length);
}
并获得正确答案
[1, 0, 0, 0, -128, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 118, 0, 0, 0, -93, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 67, 16, 0, 0, 127, 22, 0, 0, 32, 69, 77, 70, 0, 0, 1, 0, 16, 10, 0, 0, -110, 0, 0, 0, 2, 0, 0, 0, 10, 0, 0, 0, 108, 0, 0, 0, 0, 0, 0, 0, -96, 5, 0, 0, -124, 3, 0, 0, -4, 1, 0, 0, 62, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 96, -64, 7, 0, 60, -40, 4, 0, 67, 0, 111, 0, 114, 0, 101, 0, 108, 0, 69, 0, 77, 0, 70, 0, 0, 0, 0, 0, 17, 0, 0, 0, 12, 0, 0, 0, 8, 0, 0, 0, 10, 0, 0, 0, 16, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 9, 0, 0, 0, 16, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 10, 0, 0, 0, 16, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 9, 0, 0, 0, 16, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 12, 0, 0, 0, 16, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 11, 0, 0, 0, 16, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 19, 0, 0, 0, 12, 0, 0, 0, 1, 0, 0, 0, 39, 0, 0, 0, 24, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 75, 109, -121, 0, 0, 0, 0, 0, 37, 0, 0, 0, 12, 0, 0, 0, 1, 0, 0, 0, 37, 0, 0, 0, 12, 0, 0, 0, 8, 0, 0, -128, 59, 0, 0, 0, 8, 0, 0, 0, 27, 0, 0, 0, 16, 0, 0, 0, 9, 0, 0, 0, -93, 0, 0, 0, 54, 0, 0, 0, 16, 0, 0, 0, 118, 0, 0, 0, -93, 0, 0, 0, 54, 0, 0, 0, 16, 0, 0, 0, 118, 0, 0, 0, 72, 0, 0, 0, 54, 0, 0, 0, 16, 0, 0, 0, 78, 0, 0, 0, 98, 0, 0, 0, 54, 0, 0, 0, 16, 0, 0, 0, 78, 0, 0, 0, 71, 0, 0, 0, 54, 0, 0, 0, 16, 0, 0, 0, 36, 0, 0, 0, 97, 0, 0, 0, 54, 0, 0, 0, 16, 0, 0, 0, 36, 0, 0, 0, 47, 0, 0, 0, 54, 0, 0, 0, 16, 0, 0, 0, 18, 0, 0, 0, 47, 0, 0, 0, 54, 0, 0, 0, 16, 0, 0, 0, 18, 0, 0, 0, 107, 0, 0, 0, 54, 0, 0, 0, 16, 0, 0, 0, 9, 0, 0, 0, 113, 0, 0, 0, 61, 0, 0, 0, 8, 0, 0, 0, 60, 0, 0, 0, 8, 0, 0, 0, 62, 0, 0, 0, 24, 0, 0, 0, 9, 0, 0, 0, 47, 0, 0, 0, 118, 0, 0, 0, -93, 0, 0, 0, 37, 0, 0, 0, 12, 0, 0, 0, 7, 0, 0, -128, 37, 0, 0, 0, 12, 0, 0, 0, 0, 0, 0, -128, 40, 0, 0, 0, 12, 0, 0, 0, 1, 0, 0, 0, 39, 0, 0, 0, 24, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, -112, -79, -63, 0, 0, 0, 0, 0, 37, 0, 0, 0, 12, 0, 0, 0, 1, 0, 0, 0, 37, 0, 0, 0, 12, 0, 0, 0, 8, 0, 0, -128, 59, 0, 0, 0, 8, 0, 0, 0, 27, 0, 0, 0, 16, 0, 0, 0, 16, 0, 0, 0, 45, 0, 0, 0, 88, 0, 0, 0, 40, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1, -1, -1, -1, -1, -1, -1, -1, 3, 0, 0, 0, 25, 0, 45, 0, 33, 0, 39, 0, 33, 0, 32, 0, 88, 0, 0, 0, 40, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1, -1, -1, -1, -1, -1, -1, -1, 3, 0, 0, 0, 33, 0, 24, 0, 25, 0, 18, 0, 16, 0, 18, 0, 88, 0, 0, 0, 40, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1, -1, -1, -1, -1, -1, -1, -1, 3, 0, 0, 0, 7, 0, 18, 0, 0, 0, 24, 0, 0, 0, 32, 0, 88, 0, 0, 0, 40, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1, -1, -1, -1, -1, -1, -1, -1, 3, 0, 0, 0, 0, 0, 39, 0, 7, 0, 45, 0, 16, 0, 45, 0, 61, 0, 0, 0, 8, 0, 0, 0, 60, 0, 0, 0, 8, 0, 0, 0, 62, 0, 0, 0, 24, 0, 0, 0, 0, 0, 0, 0, 18, 0, 0, 0, 33, 0, 0, 0, 45, 0, 0, 0, 37, 0, 0, 0, 12, 0, 0, 0, 7, 0, 0, -128, 37, 0, 0, 0, 12, 0, 0, 0, 0, 0, 0, -128, 40, 0, 0, 0, 12, 0, 0, 0, 1, 0, 0, 0, 39, 0, 0, 0, 24, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, -112, -79, -63, 0, 0, 0, 0, 0, 37, 0, 0, 0, 12, 0, 0, 0, 1, 0, 0, 0, 37, 0, 0, 0, 12, 0, 0, 0, 8, 0, 0, -128, 59, 0, 0, 0, 8, 0, 0, 0, 27, 0, 0, 0, 16, 0, 0, 0, 35, 0, 0, 0, 37, 0, 0, 0, 88, 0, 0, 0, 40, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1, -1, -1, -1, -1, -1, -1, -1, 3, 0, 0, 0, 44, 0, 37, 0, 51, 0, 31, 0, 51, 0, 23, 0, 88, 0, 0, 0, 40, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1, -1, -1, -1, -1, -1, -1, -1, 3, 0, 0, 0, 51, 0, 16, 0, 44, 0, 10, 0, 35, 0, 10, 0, 88, 0, 0, 0, 40, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1, -1, -1, -1, -1, -1, -1, -1, 3, 0, 0, 0, 26, 0, 10, 0, 18, 0, 16, 0, 18, 0, 23, 0, 88, 0, 0, 0, 40, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1, -1, -1, -1, -1, -1, -1, -1, 3, 0, 0, 0, 18, 0, 31, 0, 26, 0, 37, 0, 35, 0, 37, 0, 61, 0, 0, 0, 8, 0, 0, 0, 60, 0, 0, 0, 8, 0, 0, 0, 62, 0, 0, 0, 24, 0, 0, 0, 18, 0, 0, 0, 10, 0, 0, 0, 51, 0, 0, 0, 37, 0, 0, 0, 37, 0, 0, 0, 12, 0, 0, 0, 7, 0, 0, -128, 37, 0, 0, 0, 12, 0, 0, 0, 0, 0, 0, -128, 40, 0, 0, 0, 12, 0, 0, 0, 1, 0, 0, 0, 39, 0, 0, 0, 24, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, -112, -79, -63, 0, 0, 0, 0, 0, 37, 0, 0, 0, 12, 0, 0, 0, 1, 0, 0, 0, 37, 0, 0, 0, 12, 0, 0, 0, 8, 0, 0, -128, 59, 0, 0, 0, 8, 0, 0, 0, 27, 0, 0, 0, 16, 0, 0, 0, 57, 0, 0, 0, 40, 0, 0, 0, 88, 0, 0, 0, 40, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1, -1, -1, -1, -1, -1, -1, -1, 3, 0, 0, 0, 68, 0, 40, 0, 76, 0, 33, 0, 76, 0, 24, 0, 88, 0, 0, 0, 40, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1, -1, -1, -1, -1, -1, -1, -1, 3, 0, 0, 0, 76, 0, 15, 0, 68, 0, 8, 0, 57, 0, 8, 0, 88, 0, 0, 0, 40, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1, -1, -1, -1, -1, -1, -1, -1, 3, 0, 0, 0, 47, 0, 8, 0, 38, 0, 15, 0, 38, 0, 24, 0, 88, 0, 0, 0, 40, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1, -1, -1, -1, -1, -1, -1, -1, 3, 0, 0, 0, 38, 0, 33, 0, 47, 0, 40, 0, 57, 0, 40, 0, 61, 0, 0, 0, 8, 0, 0, 0, 60, 0, 0, 0, 8, 0, 0, 0, 62, 0, 0, 0, 24, 0, 0, 0, 38, 0, 0, 0, 8, 0, 0, 0, 76, 0, 0, 0, 40, 0, 0, 0, 37, 0, 0, 0, 12, 0, 0, 0, 7, 0, 0, -128, 37, 0, 0, 0, 12, 0, 0, 0, 0, 0, 0, -128, 40, 0, 0, 0, 12, 0, 0, 0, 1, 0, 0, 0, 39, 0, 0, 0, 24, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, -112, -79, -63, 0, 0, 0, 0, 0, 37, 0, 0, 0, 12, 0, 0, 0, 1, 0, 0, 0, 37, 0, 0, 0, 12, 0, 0, 0, 8, 0, 0, -128, 59, 0, 0, 0, 8, 0, 0, 0, 27, 0, 0, 0, 16, 0, 0, 0, 73, 0, 0, 0, 27, 0, 0, 0, 88, 0, 0, 0, 40, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1, -1, -1, -1, -1, -1, -1, -1, 3, 0, 0, 0, 82, 0, 27, 0, 90, 0, 21, 0, 90, 0, 14, 0, 88, 0, 0, 0, 40, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1, -1, -1, -1, -1, -1, -1, -1, 3, 0, 0, 0, 90, 0, 6, 0, 82, 0, 0, 0, 73, 0, 0, 0, 88, 0, 0, 0, 40, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1, -1, -1, -1, -1, -1, -1, -1, 3, 0, 0, 0, 64, 0, 0, 0, 57, 0, 6, 0, 57, 0, 14, 0, 88, 0, 0, 0, 40, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1, -1, -1, -1, -1, -1, -1, -1, 3, 0, 0, 0, 57, 0, 21, 0, 64, 0, 27, 0, 73, 0, 27, 0, 61, 0, 0, 0, 8, 0, 0, 0, 60, 0, 0, 0, 8, 0, 0, 0, 62, 0, 0, 0, 24, 0, 0, 0, 57, 0, 0, 0, 0, 0, 0, 0, 90, 0, 0, 0, 27, 0, 0, 0, 37, 0, 0, 0, 12, 0, 0, 0, 7, 0, 0, -128, 37, 0, 0, 0, 12, 0, 0, 0, 0, 0, 0, -128, 40, 0, 0, 0, 12, 0, 0, 0, 1, 0, 0, 0, 39, 0, 0, 0, 24, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, -1, -1, -1, 0, 0, 0, 0, 0, 37, 0, 0, 0, 12, 0, 0, 0, 1, 0, 0, 0, 37, 0, 0, 0, 12, 0, 0, 0, 8, 0, 0, -128, 59, 0, 0, 0, 8, 0, 0, 0, 27, 0, 0, 0, 16, 0, 0, 0, 25, 0, 0, 0, -106, 0, 0, 0, 54, 0, 0, 0, 16, 0, 0, 0, 36, 0, 0, 0, -106, 0, 0, 0, 54, 0, 0, 0, 16, 0, 0, 0, 36, 0, 0, 0, 121, 0, 0, 0, 54, 0, 0, 0, 16, 0, 0, 0, 25, 0, 0, 0, 121, 0, 0, 0, 61, 0, 0, 0, 8, 0, 0, 0, 60, 0, 0, 0, 8, 0, 0, 0, 62, 0, 0, 0, 24, 0, 0, 0, 25, 0, 0, 0, 121, 0, 0, 0, 36, 0, 0, 0, -106, 0, 0, 0, 37, 0, 0, 0, 12, 0, 0, 0, 7, 0, 0, -128, 37, 0, 0, 0, 12, 0, 0, 0, 0, 0, 0, -128, 40, 0, 0, 0, 12, 0, 0, 0, 1, 0, 0, 0, 39, 0, 0, 0, 24, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, -1, -1, -1, 0, 0, 0, 0, 0, 37, 0, 0, 0, 12, 0, 0, 0, 1, 0, 0, 0, 37, 0, 0, 0, 12, 0, 0, 0, 8, 0, 0, -128, 59, 0, 0, 0, 8, 0, 0, 0, 27, 0, 0, 0, 16, 0, 0, 0, 47, 0, 0, 0, -106, 0, 0, 0, 54, 0, 0, 0, 16, 0, 0, 0, 58, 0, 0, 0, -106, 0, 0, 0, 54, 0, 0, 0, 16, 0, 0, 0, 58, 0, 0, 0, 121, 0, 0, 0, 54, 0, 0, 0, 16, 0, 0, 0, 47, 0, 0, 0, 121, 0, 0, 0, 61, 0, 0, 0, 8, 0, 0, 0, 60, 0, 0, 0, 8, 0, 0, 0, 62, 0, 0, 0, 24, 0, 0, 0, 47, 0, 0, 0, 121, 0, 0, 0, 58, 0, 0, 0, -106, 0, 0, 0, 37, 0, 0, 0, 12, 0, 0, 0, 7, 0, 0, -128, 37, 0, 0, 0, 12, 0, 0, 0, 0, 0, 0, -128, 40, 0, 0, 0, 12, 0, 0, 0, 1, 0, 0, 0, 39, 0, 0, 0, 24, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, -1, -1, -1, 0, 0, 0, 0, 0, 37, 0, 0, 0, 12, 0, 0, 0, 1, 0, 0, 0, 37, 0, 0, 0, 12, 0, 0, 0, 8, 0, 0, -128, 59, 0, 0, 0, 8, 0, 0, 0, 27, 0, 0, 0, 16, 0, 0, 0, 70, 0, 0, 0, -106, 0, 0, 0, 54, 0, 0, 0, 16, 0, 0, 0, 81, 0, 0, 0, -106, 0, 0, 0, 54, 0, 0, 0, 16, 0, 0, 0, 81, 0, 0, 0, 121, 0, 0, 0, 54, 0, 0, 0, 16, 0, 0, 0, 70, 0, 0, 0, 121, 0, 0, 0, 61, 0, 0, 0, 8, 0, 0, 0, 60, 0, 0, 0, 8, 0, 0, 0, 62, 0, 0, 0, 24, 0, 0, 0, 70, 0, 0, 0, 121, 0, 0, 0, 81, 0, 0, 0, -106, 0, 0, 0, 37, 0, 0, 0, 12, 0, 0, 0, 7, 0, 0, -128, 37, 0, 0, 0, 12, 0, 0, 0, 0, 0, 0, -128, 40, 0, 0, 0, 12, 0, 0, 0, 1, 0, 0, 0, 39, 0, 0, 0, 24, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, -1, -1, -1, 0, 0, 0, 0, 0, 37, 0, 0, 0, 12, 0, 0, 0, 1, 0, 0, 0, 37, 0, 0, 0, 12, 0, 0, 0, 8, 0, 0, -128, 59, 0, 0, 0, 8, 0, 0, 0, 27, 0, 0, 0, 16, 0, 0, 0, 92, 0, 0, 0, -106, 0, 0, 0, 54, 0, 0, 0, 16, 0, 0, 0, 103, 0, 0, 0, -106, 0, 0, 0, 54, 0, 0, 0, 16, 0, 0, 0, 103, 0, 0, 0, 121, 0, 0, 0, 54, 0, 0, 0, 16, 0, 0, 0, 92, 0, 0, 0, 121, 0, 0, 0, 61, 0, 0, 0, 8, 0, 0, 0, 60, 0, 0, 0, 8, 0, 0, 0, 62, 0, 0, 0, 24, 0, 0, 0, 92, 0, 0, 0, 121, 0, 0, 0, 103, 0, 0, 0, -106, 0, 0, 0, 37, 0, 0, 0, 12, 0, 0, 0, 7, 0, 0, -128, 37, 0, 0, 0, 12, 0, 0, 0, 0, 0, 0, -128, 40, 0, 0, 0, 12, 0, 0, 0, 1, 0, 0, 0, 14, 0, 0, 0, 20, 0, 0, 0, 0, 0, 0, 0, 16, 0, 0, 0, 20, 0, 0, 0]
我试着通过代码压缩它：
After that i'm try to compress it back by code:
ByteArrayOutputStream baos2 = new ByteArrayOutputStream();
//Deflater defalter = new Deflater(1);
DeflaterOutputStream dos = new DeflaterOutputStream(baos2);//deflater, false);
dos.write(baos.toByteArray(), 0 , baos.toByteArray().length);
dos.finish();
并获得结果：
[120, -100, -67, 84, 77, 47, 3, 81, 20, 61, -29, -85, 45, 13, -29, 91, 89, -48, -108, -78, 32, -77, -112, 72, -22, -93, 105, -126, -46, 40, 9, 43, 105, 44, -112, -120, 5, 34, 44, 36, 86, -70, -112, -40, -118, -123, -75, -60, 47, -16, 15, -8, 23, 126, -116, -124, 51, -45, -5, -30, -103, -52, -68, -63, 98, 94, 114, -46, 119, 122, -49, -36, 123, -49, 25, 106, 1, -88, -29, -5, 92, 17, -49, 26, 95, -74, -127, -101, 1, 96, 108, 117, -77, 12, 88, -80, -37, -127, 7, 126, -33, 68, -16, -118, 83, -47, 61, -75, 2, -73, -51, -64, -121, 5, 20, 45, -4, 56, -5, -81, 9, 44, -66, -73, 96, 25, -25, -72, -60, 17, -97, 89, -59, 38, -54, 94, -83, -101, 72, 19, 73, -23, 103, 107, -49, -91, -124, 91, -126, -88, 122, -38, 87, -17, -16, -43, 123, 69, -29, -34, 39, -119, 33, -71, -69, 103, -29, -20, -50, -5, -100, -48, 52, -22, -50, -35, -22, 11, -78, -29, -120, -12, 76, 73, 78, 115, -62, -81, 2, -8, -70, -58, -73, -120, 67, 31, 95, -45, -8, 56, 113, -32, -29, -114, -58, 123, 2, -8, -119, -58, -35, 125, 46, -120, 37, -39, 115, 81, 62, -117, -30, 51, 37, -49, -85, 61, -107, -73, 4, -67, -87, 59, 79, 125, -54, -112, -47, -3, -53, -37, -97, 50, 114, 49, 67, -20, 18, 83, -38, 123, -7, -108, -61, 63, 23, 100, -88, -56, 114, 82, 22, 99, 70, 93, -106, -101, 100, -24, -38, 38, 76, -70, -124, -105, -116, -69, -75, -71, -97, -21, 46, -63, -39, 54, 17, -106, 25, 36, -25, -84, -8, -120, 35, -77, -100, -44, 77, -69, 79, 83, 49, -117, 81, 98, -48, -88, -101, 101, -57, 105, -2, -41, -28, 8, -109, 110, -104, -11, 70, -78, -26, 126, 61, -100, 57, -52, -39, 57, 34, 44, 51, 55, -81, 118, 111, 118, -61, 71, 28, -103, 21, 100, 103, -45, -18, 43, -84, 84, -7, 38, -85, -100, 100, -46, 85, -47, 69, 109, -110, 61, -109, 70, -99, -61, 122, -98, -38, 124, 68, -65, 60, 103, 58, -84, 22, -120, -80, -52, -14, -62, -85, -46, 39, -114, -52, 42, 114, 55, -19, -66, 67, 69, 13, -3, 68, -89, 81, 87, 67, 27, -75, -115, -98, 38, 93, -55, 123, 87, 109, -124, -71, 95, -127, 51, 75, -100, 93, 33, -62, 50, 43, -56, 115, 53, -15, -15, -97, -52, 56, -18, 79, -103, 101, -120, 71, -4, -4, -115, -10, -13, 107, -115, 103, -124, -121, 121, 80, 117, -43, 39, 14, 15, -114, 111, -25, -7, 0, -82, 123, 112, 34, 60, -88, -70, -22, 19, -121, -121, -78, 111, -25, -19, 0, -82, 123, 40, 71, 120, 80, 117, -43, 39, 14, 15, 123, -66, -99, -113, 3, -72, -18, 97, 47, -62, -125, -86, -85, 62, -65, -15, -48, 73, -12, -55, -2, -74, -36, -65, 0, -108, 74, -2, -44]
当我取消注释deflater初始化时，使用DeflateOutputStream构造函数。
the more similar result was achieved when i uncomment deflater initialization and using in DeflateOutputStream constructor.
对我来说，这是非常奇怪的行为，或者我不使用inflate / deflate机制。
As for me it's very strange behaviour or i don't use inflate/deflate mechanism properly.
有什么想法吗？
推荐答案
无损压缩器被称为，确保压缩后解压缩产生完全相同
Lossless compressors, to be called such, assure that compression followed by decompression produces exactly the same thing as what you started with.
另一方面，没有任何保证也没有必要确保压缩之后的解压缩应该总是产生相同的结果。压缩器可以遵守压缩数据格式，但是对于相同的输入数据产生非常不同的结果，这取决于所使用的算法和所选择的算法的参数。压缩机通常具有不同的压缩级别，允许用户根据应用程序花费更多或更少的CPU压缩更好或更差。所以你会得到不同的输出与不同的设置。
On the other hand, there is no assurance nor any need to assure that decompression followed by compression should always produce the same result. Compressors can comply with the compressed data format, but produce very different results on the same input data depending the algorithm used and parameters of the algorithm that are chosen. Compressors often have different compression "levels" that allow the user to spend more or less CPU compressing better or worse, depending on the application. So you will get different output with different settings.
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