获取运行时生成的类的字节 [英] Get bytes for a class that was generated at runtime

问题描述

我正在使用一个Java框架，该框架使用自定义的ClassLoader在运行时生成一些（代理）类。我想从自定义ClassLoader从loadClass（..）返回的任何此类类中获取与该类相对应的原始字节数组。这可能吗？我知道，如果有一个类作为资源存在，那么您可以使用输入流以二进制格式加载该类，但是如果该类是在运行时生成的，该怎么办？

I am working with a Java framework that generates some (proxy) classes at runtime, using a custom ClassLoader. I would like to get for any such class that the custom ClassLoader returns from loadClass(..) the raw byte array that corresponds to this class. Is this possible? I know that if a class exists as a resource then you can use an input stream to load the class in binary format but how can I go about this if the class is generated at runtime?

推荐答案

注册 ClassFileTransformer 。记录所需的数据，而不是修改字节。

Register a ClassFileTransformer. Rather than modifying the bytes, record the data you need.

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