从给定的JAR清单文件中返回“版本”条目。

/*

 * Copyright (C) 2006-2007 Mindquarry GmbH, All Rights Reserved

 * 

 * The contents of this file are subject to the Mozilla Public License

 * Version 1.1 (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.mozilla.org/MPL/

 *

 * Software distributed under the License is distributed on an "AS IS"

 * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the

 * License for the specific language governing rights and limitations

 * under the License.

 *//*来自 时代Java - N o w  J a v a . c o m*/

//package com.nowjava;


import java.io.IOException;


import java.util.jar.JarFile;


public class Main {

    /**

     * Return the "Version" entry from the given JAR's manifest file.

     * @throws IOException

     */

    public static String getVersion(String jarFileName) throws IOException {

        JarFile jar