JAXB如何嵌套多个对象？

@XmlRootElement
public class ParentObject {
    @XmlElement
    private ChildObject1 child1;
    
    @XmlElement
    private ChildObject2 child2;
    
    // Getters and setters
}

public class ChildObject1 {
    @XmlElement
    private String property1;
    
    // Getters and setters
}

public class ChildObject2 {
    @XmlElement
    private String property2;
    
    // Getters and setters
}

// 将Java对象转换为XML数据
JAXBContext context = JAXBContext.newInstance(ParentObject.class);
Marshaller marshaller = context.createMarshaller();
marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);

ParentObject parent = new ParentObject();
// 设置parent对象的属性

marshaller.marshal(parent, System.out); // 输出XML数据

// 将XML数据转换为Java对象
JAXBContext context = JAXBContext.newInstance(ParentObject.class);
Unmarshaller unmarshaller = context.createUnmarshaller();

ParentObject parent = (ParentObject) unmarshaller.unmarshal(xmlFile); // xmlFile为XML数据文件

// 使用parent对象的属性