主动向方法添加 Java 注释? [英] Retro-actively add Java annotations to methods?

问题描述

有没有办法修改 .class 文件以便向某些方法添加 Java 注释?基本上我想遍历 jar 文件中每个类文件的方法并注释某些方法.请注意，这不是在使用 jar 文件时的运行时.相反，在我完成后，我想用注释修改类文件.

Is there a way to modify .class files in order to add Java annotations to certain methods? Basically I want to traverse methods of each class file in a jar file and annotate certain ones. Note that this is not at run-time while using the jar file. Rather, after I'm done I want to have modified class files with the annotations.

我确实可以访问源代码，所以如果有一个自动源代码修改器，那也能正常工作...

I do have access to the source code, so if there's an automatic source code modifier, that would work as well...

我假设我需要一个工具，例如 Javassist 或 ASM.如果是这样，我应该使用哪个，我将如何处理?

I'm assuming I'll need a tool such as Javassist or ASM. If so, which one should I use and how would I go about it?

推荐答案

谷歌搜索一个小时左右转向 这篇文章 似乎完全回答了我的问题:使用ASM.要使用更改后的字节码编写类文件，请使用 ClassWriter.

Googling for an hour or so turned this article up which seems to completely answer my question: use ASM. To write class files using the changed bytecode, use ClassWriter.

好吧，我想是时候开始工作了.:)

Well, time to get to work then, I guess. :)

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