Java中JarURLConnection简介说明

JarURLConnection类的功能

JarURLConnection类的功能:用于连接java中的Jar文件，
当我们使用此类连接jar文件信息后，可获取jar文件中的相关信息，如下例所示:

String urlString = "http://java265.com/"
                 + "test/download/"
                 + "mysql-beta.jar";
URL jarUrl = new URL(urlString);
JarURLConnection connection = new JarURLConnection(jarUrl);
Manifest manifest = connection.getManifest();
JarFile jarFile = connection.getJarFile();