为什么getResourceAsStream方法在Class类中？ [英] Why getResourceAsStream method is in Class class?

问题描述

为什么公共InputStream getResourceAsStream（String name）在Class类中？它只是给出jar文件中文件的输入流，而与Class类没有关系。因此它可以是静态方法，并且可以在任何类中。

Why public InputStream getResourceAsStream(String name) is in Class class? It just give inputstream of file which is in jar file and there is no relation with Class class. so it can be static method and it can be in any class.

推荐答案

有是到该类：

• 将考虑该类的包-如果您调用 getResourceAsStream（ baz .txt）放在 foo.bar.SomeClass 的类上，它将查找 / foo / bar / baz。 txt


• 首先考虑类加载器以查找资源-如果它是静态方法，它将如何知道哪些jar文件（例如）看？生活比系统类加载器更重要

• The package of the class is taken into account - if you give call getResourceAsStream("baz.txt") on the class for foo.bar.SomeClass it will look for /foo/bar/baz.txt
• The classloader is taken into account to find the resources in the first place - if it were a static method, how would it know which jar files (etc) to look in? There's more to life than the system classloader

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