java类似Python的zlib

import java.io.*;
import java.util.zip.Deflater;
import java.util.zip.Inflater;

public abstract class Zlib {
    /**
     * 压缩
     *
     * @param data
     *            待压缩数据
     * @return byte[] 压缩后的数据
     */
    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[8192];
            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;
    }


    /**
     * 解压缩
     *
     * @param data
     *            待压缩的数据
     * @return byte[] 解压缩后的数据
     */
    public static byte[] decompress(byte[] data) {
        Inflater decompresser = new Inflater();
        decompresser.setInput(data);

        ByteArrayOutputStream bos = new ByteArrayOutputStream(data.length);
        try {
            byte[] buf = new byte[8192];
            while (!decompresser.finished()) {
                int i = decompresser.inflate(buf);
                bos.write(buf, 0, i);
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            try {
                bos.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }

        decompresser.end();

        return bos.toByteArray();
    }
}

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