GZip을 이용한 String 압축 및 해제

/**
* GZip를 이용한 스트링 압축
* @author jksong
* @Param
* @since 2019-09-09 오전 8:30
**/
public static byte[] zipStringToBytes(String input) throws IOException {
ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
GZIPOutputStream gzipOutputStream = new GZIPOutputStream(byteArrayOutputStream);
BufferedOutputStream bufferedOutputStream = new BufferedOutputStream(gzipOutputStream);
bufferedOutputStream.write(input.getBytes());
bufferedOutputStream.close();
byteArrayOutputStream.close();
return byteArrayOutputStream.toByteArray();
}

/**
* GZIPInputStream을 이용하여 byte배열 압축해제하기
* @author jksong
* @Param
* @since 2019-09-09 오전 8:30
**/
public String unzipStringFromBytes(byte[] bytes) throws IOException {
ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(bytes);
GZIPInputStream gzipInputStream = new GZIPInputStream(byteArrayInputStream);
BufferedInputStream bufferedInputStream = new BufferedInputStream(gzipInputStream);
ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();

byte[] buffer = new byte[100];
int length;
while((length = bufferedInputStream.read(buffer)) > 0) {
byteArrayOutputStream.write(buffer, 0, length);
}

bufferedInputStream.close();
gzipInputStream.close();
byteArrayInputStream.close();
byteArrayOutputStream.close();

return byteArrayOutputStream.toString();
}