酷狗的krc歌词文件的解析

酷狗的krc歌词文件的解析,弄了很久才知道krc文件是加密的,需要转成utf-8,解密,再转ASCII码显示,别人说的,后来找了好久代码,终于找到完整的。

就是两个类


import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.zip.Deflater;
import java.util.zip.DeflaterOutputStream;
import java.util.zip.Inflater;
import java.util.zip.InflaterInputStream;

public abstract class ZLibUtils
{
			public static byte[] compress(byte[] data) {
				byte[] output = new byte[0];
				Deflater compresser = new Deflater();
				compresser.reset();
				compresser.setInput(data);
				compresser.finish();
				ByteArrayOutputStream bos = new ByteArrayOutputStream(data.length);
				try {
				byte[] buf = new byte[1024];
				while (!compresser.finished()) {
				int i = compresser.deflate(buf);
				bos.write(buf, 0, i);
				}
				output = bos.toByteArray();
				} catch (Exception e) {
				output = data;
				e.printStackTrace();
				} finally {
				try {
				bos.close();
				} catch (IOException e) {
				e.printStackTrace();
				}
				}
				compresser.end();
				return output;
			}
			
			public static void compress(byte[] data, OutputStream os) {
				DeflaterOutputStream dos = new DeflaterOutputStream(os);
				try {
				dos.write(data, 0, data.length);
				dos.finish();
				dos.flush();
				} catch (IOException e) {
				e.printStackTrace();
				}
				}
			
				public static byte[] decompress(byte[] data) {
				byte[] output = new byte[0];
				Inflater decompresser = new Inflater();
				decompresser.reset();
				decompresser.setInput(data);
				ByteArrayOutputStream o = new ByteArrayOutputStream(data.length);
				try {
				byte[] buf = new byte[1024];
				while (!decompresser.finished()) {
				int i = decompresser.inflate(buf);
				o.write(buf, 0, i);
				}
				output = o.toByteArray();
				} catch (Exception e) {
				output = data;
				e.printStackTrace();
				} finally {
				try {
				o.close();
				} catch (IOException e) {
				e.printStackTrace();
				}
				}
				decompresser.end();
				return output;
			}
				
			public static byte[] decompress(InputStream is) {
				InflaterInputStream iis = new InflaterInputStream(is);
				ByteArrayOutputStream o = new ByteArrayOutputStream(1024);
				try {
				int i = 1024;
				byte[] buf = new byte[i];
				while ((i = iis.read(buf, 0, i)) > 0) {
				o.write(buf, 0, i);
				}
				} catch (IOException e) {
				e.printStackTrace();
				}
				return o.toByteArray();
				}
			}


import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;

public class KrcText
{
    private static final char[] miarry = { '@', 'G', 'a', 'w', '^', '2', 't',
            'G', 'Q', '6', '1', '-', 'Î', 'Ò', 'n', 'i' };
    
    public static void main(String[] args) throws IOException
    {
        String filenm = "";//krc文件的全路径加文件名
        System.out.println(new KrcText().getKrcText(filenm));
    }
    
    /**
     * 
     * @param filenm krc文件路径加文件名
     * @return krc文件处理后的文本
     * @throws IOException
     */
    public String getKrcText(String filenm) throws IOException
    {
        File krcfile = new File(filenm);
        byte[] zip_byte = new byte[(int) krcfile.length()];
        FileInputStream fileinstrm = new FileInputStream(krcfile);
        byte[] top = new byte[4];
        fileinstrm.read(top);
        fileinstrm.read(zip_byte);
        int j = zip_byte.length;
        for (int k = 0; k < j; k++)
        {
            int l = k % 16;
            int tmp67_65 = k;
            byte[] tmp67_64 = zip_byte;
            tmp67_64[tmp67_65] = (byte) (tmp67_64[tmp67_65] ^ miarry[l]);
        }
        String krc_text = new String(ZLibUtils.decompress(zip_byte), "utf-8");
        return krc_text;
    }
}



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