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();
}
}
java类似Python的zlib
最新推荐文章于 2024-07-16 04:59:08 发布