Java tutorial
//package com.java2s; /** * Copyright 2008 - 2009 * * Licensed under the Apache License, Version 2.0 (the "License"); you may not * use this file except in compliance with the License. You may obtain a copy of * the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the * License for the specific language governing permissions and limitations under * the License. * * @project loonframework * @author chenpeng * @email:ceponline@yahoo.com.cn * @version 0.1 */ import java.io.ByteArrayOutputStream; import java.io.IOException; import java.util.zip.GZIPOutputStream; public class Main { public static final byte[] compress(byte[] bytes) { if (bytes == null) { throw new NullPointerException("byte[] is NULL !"); } ByteArrayOutputStream bos = new ByteArrayOutputStream(8192); try { GZIPOutputStream gzip = new GZIPOutputStream(bos); gzip.write(bytes, 0, bytes.length); gzip.finish(); byte[] fewerBytes = bos.toByteArray(); gzip.close(); bos.close(); gzip = null; bos = null; return fewerBytes; } catch (IOException e) { return null; } } }