使用gzip算法解压缩数据字节。

/* 来 自 nowjava - 时  代  Java*/

//package com.nowjava;

import java.io.ByteArrayInputStream;

import java.io.ByteArrayOutputStream;

import java.io.IOException;

import java.util.zip.GZIPInputStream;


public class Main {

    /**

     * Decompress data bytes with gzip algorithm.

     * 

     * @param data

     * @return data decompressed.

     * @throws IOException

     */

    public static byte[] ungzip(byte[] data) throws IOException {

        if (data == null) {

            return data;

        }


        ByteArrayOutputStream out = new ByteArrayOutputStream();

        ByteArrayInputStream in = new ByteArrayInputStream(data);


        GZIPInputStream gis = null;

        try {

            gis = new GZIPInputStream(in);
            /**
            来 自 时 代 J a v a - nowjava.com
            **/

            byte[] buffer = new byte[1024];

            int n;

            while ((n = gis.read(buffer)) >=