将目录压缩到zip输出流

/**

 * e-Science Central

 * Copyright (C) 2008-2013 School of Computing Science, Newcastle University

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License

 * version 2 as published by the Free Software Foundation at:

 * http://www.gnu.org/licenses/gpl-2.0.html

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, 5th Floor, Boston, MA 02110-1301, USA.

 */

//package com.nowjava;
/**
 * n o w    j a v a  . c o m 提 供 
**/

import java.io.*;

import java.util.zip.*;


public class Main {

    /** Zip a directory to a zip output stream */

    public static void zipDir(String baseDir, String dir2zip,

            ZipOutputStream zos) throws IOException {


        //create a new File object based on the directory we have to zip

        File zipDir = new File(dir2zip);

        //get a listing of the directory content

        String[] dirList = zipDir.list();

        byte[] readBuffer = new byte[2156];

        int bytesIn = 0;

        //loop through dirList, and zip the files

        for (int i = 0; i < dirList.length; i++) {

            File f = new File(zipDir, dirList[i]);

            if (f.isDirectory()) {
            /**来自 
             NowJava.com - 时代Java**/

                //if the File object is a directory, call this

                //function again to add its content recursively

                String filePath = f.getPath();

                zipDir(baseDir, filePath, zos);

                //loop again

                continue;

            }

            //if we reached here, the File object f was not a directory

            //create a FileInputStream on top of f

            FileInputStream fis = new FileInputStream(f);

            // create a    new zipentry

            ZipEntry anEntry = new ZipEntry(subtractPath(baseDir,

                    f.getPath()).replace("\\", "/"));


            //place the zip entry in the ZipOutputStream object

            zos.p