类加载器ClassLoader

public static void main(String[] args) throws ClassNotFoundException, IOException {
	URL url=new URL("file:"+"E:"+File.separator+"workspace");
	System.out.println(url.getPath());
	String path=url.getPath();
	File file = new File(path);
	getfiles(file);
}
private static List<Class<?>> getfiles(File file) throws ClassNotFoundException, IOException {
	List<Class<?>> classList=new ArrayList<>();
	if(!file.exists())
	{
		return classList;
	}
	File[] files=file.listFiles();
	for(File f:files){
		if(f.isDirectory()){
			List<Class<?>> subClasses=getfiles(file);
			classList.addAll(subClasses);
		}
		else if (f.getName().endsWith(".jar")) {
			URL url=new URL("file:"+f.getAbsolutePath());
			System.out.println(url.getPath());
			ClassLoader classLoader=new URLClassLoader(new URL[]{url});
			JarFile jarFile=new JarFile(f);
			Enumeration<JarEntry> jarEntries=jarFile.entries();
			while(jarEntries.hasMoreElements()){
				JarEntry jarEntry=jarEntries.nextElement();
				if(jarEntry.getName().endsWith(".class")){
					Class<?> clazz=classLoader.loadClass(jarEntry.getName().substring(0, jarEntry.getName().length()-6).replace("/", "."));
					classList.add(clazz);
					System.out.println(clazz.getName());
				}
			}
		}
	}
	return classList;
	
}