如何反序列化java SimpleXML中的嵌套对象

<root>
    <name>John Doe</name>
    <age>30</age>
    <address>
        <street>Main Street</street>
        <city>City</city>
    </address>
</root>

@Root(name = "root")
public class RootObject {
    @Element(name = "name")
    private String name;

    @Element(name = "age")
    private int age;

    @Element(name = "address")
    private Address address;

    // Getters and setters
}

public class Address {
    @Element(name = "street")
    private String street;

    @Element(name = "city")
    private String city;

    // Getters and setters
}

Serializer serializer = new Persister();
RootObject rootObject = serializer.read(RootObject.class, xmlData);

String name = rootObject.getName();
int age = rootObject.getAge();
String street = rootObject.getAddress().getStreet();
String city = rootObject.getAddress().getCity();