Java tutorial
//package com.java2s; //License from project: Apache License import java.io.ByteArrayOutputStream; import java.io.IOException; import java.util.zip.GZIPOutputStream; public class Main { public static byte[] compressGzip(byte[] content) throws IOException { ByteArrayOutputStream bos = new ByteArrayOutputStream(); GZIPOutputStream gos = new GZIPOutputStream(bos); try { gos.write(content); gos.flush(); } finally { gos.close(); } return bos.toByteArray(); } }