科特林反射获取字段列表 [英] kotlin reflection get list of fields

问题描述

在Kotlin中是否有Java反射foo.getClass().getFields()的等效项?我只能在知道字段名称的情况下才能访问该字段，但是我想以一种通用的方式来处理字段.

is there an equivalent for the java reflection foo.getClass().getFields() in Kotlin? I could only find that I can access a field when I know it's name, but I would like to handle fields in a generic way.

推荐答案

您想要字段作为支持字段"还是属性"作为字段?Kotlin实际上仅具有属性.您可以使用以下课程获得这些课程:

Did you want fields as-in "backing field" or fields as in "properties" ... Kotlin really only has properties. You can get these for some class using:

MyTest::class.memberProperties

// or 

MyTest::class.declaredMemberProperties

然后从Java Class<T>中使用kotlin扩展属性来获取Kotlin KClass<T>，您可以从中进行以下操作:

And from a Java Class<T>, use the kotlin extension property to get the Kotlin KClass<T> from which you can proceed:

someClassOfMine.javaClass.kotlin.memberProperties

这也需要将kotlin-reflect依赖项添加到您的构建和类路径中.您可以在KClass

This requires the kotlin-reflect dependency as well to be added to your build and classpath. You'll find many other useful things on KClass

对于属性背后的秘密后备字段，使用Java反射的风险自负.

For the secret backing fields behind a property, use Java reflection at your own risk.

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