如何确定Java类使用哪些方法 [英] How do I determine which methods are used by a Java class

问题描述

我需要提供一份报告，告诉我们的代码使用了哪些API，以及调用哪些方法。对于Windows DLL，我会使用dumpbin / imports - 是否有一个等同的Java .class文件？

I need to provide a report of which APIs are used by our code, and exactly which methods are called. For a Windows DLL, I would use "dumpbin /imports" - is there an equivalent for a Java .class file?

javap似乎是显而易见的地方，但是我找不到任何看起来像我以后做的选项。

javap seems to be the obvious place to look, but I can't find any options that seem to do what I'm after.

推荐答案

javap -c class1 class2 ... | grep invoke

您将获得所有的运行时调用。

You will get all the runtime calls. You should filter them from your APIs and you will get calls to imported methods.

您可能还需要确定使用的导入字段：

You might also want to determine used imported fields:

javap -c class1 class2 ... | grep getstatic （搜索也putstatic，putfield，getfield）

javap -c class1 class2 ... | grep getstatic (search also putstatic, putfield, getfield)

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