如何从Java中的jar读取文件? [英] How to read a file from jar in Java?

问题描述

我想读取位于我的类路径中包含的 jar 之一内的 XML 文件.如何读取 jar 中包含的任何文件?

I want to read an XML file that is located inside one of the jars included in my class path. How can I read any file which is included in the jar?

推荐答案

如果您想从应用程序内部读取该文件，请使用:

If you want to read that file from inside your application use:

InputStream input = getClass().getResourceAsStream("/classpath/to/my/file");

路径以/"开头，但这不是文件系统中的路径，而是类路径中的路径.因此，如果您的文件位于类路径org.xml"并且名为 myxml.xml，则您的路径看起来像/org/xml/myxml.xml".

The path starts with "/", but that is not the path in your file-system, but in your classpath. So if your file is at the classpath "org.xml" and is called myxml.xml your path looks like "/org/xml/myxml.xml".

InputStream 读取文件的内容.如果需要，您可以将其包装到 Reader 中.

The InputStream reads the content of your file. You can wrap it into an Reader, if you want.

希望能帮到你.

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