获取要加载的类的必要类列表 [英] Get list of necessary classes for a class to load

问题描述

我想获取一个类的导入列表。由于编译器将其删除，我认为通过反射可以扫描类，它的方法，字段等，并收集类加载类所需的类列表。是否有某种类型的库，教程或文章可以指向我，以便我能更好地理解如何做到这一点？ （我知道有类似的问题已被提出，但我找不到合适的答案，我很确定这应该是可行的）。我看到了一些例子，展示了你如何做到这一点，如果你有资源，但在我的情景中不一定如此。

I'd like to obtain the list of imports a class has. Since this is removed by the compiler, I suppose via reflection one could scan through the class, it's methods, fields and so on and collect a list of classes which are required in order for the classloader to load the class. Is there some sort of library, tutorial, or article you could point me at so I could better understand how this can be done? (I understand similar questions have been asked, but I could not find a proper answer and I'm quite sure this should be possible). I saw some examples showing how you could do it, if you had the sources, but that would not necessarily be the case in my scenario.

非常感谢提前！

推荐答案

不，反思不会帮助

void test() {
    Date date = new Date();
}

您无法检测到在反射方法内使用Date。但您可以使用Javassist https://github.com/jboss-javassist/javassist

you cannot detect that Date is used inside method with reflection. But you can use Javassist https://github.com/jboss-javassist/javassist

    ClassPool cp = ClassPool.getDefault();
    Collection classes = cp.get("test.Test").getRefClasses();

此代码生成test.Test类中引用的所有类的名称的集合

this code produces a collection of the names of all the classes referenced in test.Test class

这篇关于获取要加载的类的必要类列表的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！