Jackson从子节点反序列化到字段中？

Question

I have a class

public class Foo {
    String foo;
    String bar;
}

and JSON

{
  "foo": "foo",
  "bar": {
    "bar": "bar"
  }
}

Can I deserialize it using any json library without writing adapters/serializers to specific class.

Maybe some of gson's adapters has needed behavior? But I didn't find adapter to field. I'd like to write annotation like @MyJsonExpandAnnotation("bar.bar") but I can't find adapter with access to Field.

Answer 1

Basically what you would use without your given annotation example is

public class Foo {
    String foo;
    Bar bar;
}

public class Bar{
    String bar;     
}

There is an open suggestion for it tho.