从加载的类获取Jar路径

//package com.nowjava;
/*
nowjava - 时  代  Java 提 供
*/


import java.net.URL;

import java.util.Enumeration;


public class Main {

    public static void main(String[] argv) throws Exception {

        String pkg = "nowjava.com";

        System.out.println(getJarPath(pkg));

    }


    public static URL getJarPath(String pkg) {

        try {

            Enumeration<URL> resources = Thread.currentThread()

                    .getContextClassLoader()
                    /**
                    NowJava.com - 时代Java 提供 
                    **/

                    .getResources(pkg.replace('.', '/'));

            while (resources.hasMoreElements()) {

                URL url = (URL) resources.nextElement();

                return url;

            }

            return null;

        } catch (