[英]Java Reflection - Get Fields From Sub Class as well as Super Class
I am using inherited bean classes for my project. 我正在为我的项目使用继承的bean类。 Here some of super classes will be empty and sub class can have fields & some of sub classes will be empty and super class can have fields.
这里有些超类是空的,子类可以有字段,有些子类是空的,超类可以有字段。
My requirement is to get all private / public fields from Sub class as well as to get all public / protected fields from Super class too. 我的要求是从Sub类获取所有私有/公共字段以及从Super类获取所有公共/受保护字段。
Below I have tried to achieve it. 下面我试图实现它。 But I failed to meet my requirement.
但我没能达到我的要求。 Please provide some suggestion to achieve this one.
请提供一些建议来实现这一目标。
Field fields [] = obj.getClass().getSuperclass().getDeclaredFields();
If I use above code, I can get only Super class fields 如果我使用上面的代码,我只能获得超类字段
Field fields [] = obj.getClass().getFields();
If I use above code, I can get all fields from Sub class and super class fields 如果我使用上面的代码,我可以从Sub类和超类字段获取所有字段
Field fields [] = obj.getClass().getDeclaredFields();
If I use above code, I can get Sub class public and private all fields. 如果我使用上面的代码,我可以获得Sub类的公共和私有所有字段。
You will have to iterate over all the superclasses of your class, like this: 您将不得不迭代您的类的所有超类,如下所示:
private List<Field> getInheritedPrivateFields(Class<?> type) {
List<Field> result = new ArrayList<Field>();
Class<?> i = type;
while (i != null && i != Object.class) {
Collections.addAll(result, i.getDeclaredFields());
i = i.getSuperclass();
}
return result;
}
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