找到罐子入口

/**

 * Tangara is an educational platform to get started with programming.

 * Copyright (C) 2008 Colombbus (http://www.colombbus.org)

 *

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

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation, either version 3 of the License, or

 * (at your option) any later version.

 *

 * 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, see <http://www.gnu.org/licenses/>.

 */

import java.io.BufferedInputStream;

import java.io.File;/** n o w j a v a . c o m 提 供 **/

import java.io.FileInputStream;

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.InputStream;

import java.io.OutputStream;

import java.net.URL;

import java.util.jar.JarEntry;

import java.util.jar.JarInputStream;

import java.util.jar.JarOutputStream;

import java.util.zip.ZipEntry;

import org.apache.log4j.Logger;


public class Main{

    private static JarEntry findJarEntry(String entryName,/*N o w  J a v a  . c o m 提供*/

            JarInputStream jarFile) throws IOException {

        JarEntry jarEntry = jarFile.getNextJarEntry();