Zip Utils (unzip problem )

Question

Hi,
I have a problem with the ZIP, so i an array of bytes ziped in my database without problem,but after when i try
to extract this information i must to unziped it , the problem is that the unzip method replace the char "�" by
another char that cause a not well formedness of my xml file produced .
So if there is any solution to resolve this problem .
Thanks.

Answer 1

public static byte[] zip(byte[] input) throws IOException {
// Create the compressor with highest level of compression
Deflater compressor = new Deflater();
compressor.setLevel(Deflater.BEST_COMPRESSION);
// Give the compressor the data to compress
compressor.setInput(input);
compressor.finish();
// Create an expandable byte array to hold the compressed data.
// You cannot use an array that's the same size as the orginal because
// there is no guarantee that the compressed data will be smaller than
// the uncompressed data.
ByteArrayOutputStream bos = new ByteArrayOutputStream(input.length);
// Compress the data
byte[] buf = new byte[BUFFER];
while (!compressor.finished()) {
int count = compressor.deflate(buf);
bos.write(buf, 0, count);
try {
bos.close();
} catch (IOException e) {
// Get the compressed data
return bos.toByteArray();
public static byte[] unzip(byte[] compressedData) throws IOException {
// Create the decompressor and give it the data to compress
Inflater decompressor = new Inflater();
decompressor.setInput(compressedData);
// Create an expandable byte array to hold the decompressed data
ByteArrayOutputStream bos = new ByteArrayOutputStream(compressedData.length);
// Decompress the data
byte[] buf = new byte[BUFFER];
while (!decompressor.finished()) {
try {
int count = decompressor.inflate(buf);
bos.write(buf, 0, count);
} catch (DataFormatException e) {
try {
bos.close();
} catch (IOException e) {
// Get the decompressed data
return bos.toByteArray();