在Java applet中读取.jar文件 [英] Read .jar file in Java applet

问题描述

我有一个小Java小程序游戏，您可以在其中选择一些主题。它工作得很好，但巨大的.jar的下载时间是不可接受的。现在我想将.jar拆分为单个.jars，默认为每个主题一个。现在只有一个问题：（如何）我可以从Java小程序中读取.jar文件，该小程序也是.jar？

I have a little Java applet game where you can choose between some themes. It works very well but the downloading time of the huge .jar is not acceptably. Now I want to split the .jar into single .jars, a default one and one for every theme. Now there is just one question: (How) can I read a .jar file from a Java applet which is also a .jar?

推荐答案

查看 URLClassLoader 。您可以将theme.jar的URL作为参数提供，并使用getResource *方法访问其中的文件。

Take a look at the URLClassLoader. You can give the URL to the theme.jar as a parameter and use the getResource* methods to access the files inside.

另一种方法是手动下载JAR并使用 java.util.jar 类打开它，但是我会采用第一种方法。

Another approach would be to manually download the JAR and open it with the java.util.jar classes, but I would go with the first approach.

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