How to load a jar from an URL without downloading it?

问题

JAVA - Well just that, i know how to load external jars from my main project with classloader and even download a jar from an url and load it, but there's anyway to load a jar from a url without dowloading? just load it in memory from the url to use it? thanks!

来源：https://stackoverflow.com/questions/14751584/how-to-load-a-jar-from-an-url-without-downloading-it