将压缩后的输入流解压缩到输出流。

//package com.nowjava;
/**
来 自 时代Java
**/


import java.io.IOException;


import java.io.OutputStream;

import java.util.zip.GZIPInputStream;


public class Main {

    /**

     * UnGzip an gzipped input stream to an output stream. You need to close streams manually.

     * @param gzippedInputStream

     * @param ungzippedOutputStream

     * @throws IOException

     */

    public static void unGzip(GZIPInputStream gzippedInputStream,

            OutputStream ungzippedOutputStream) throws IOException {

        byte[] buffer = new byte[1024];

        int len = -1;