如何使用Jaxb删除XML层

import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBException;
import javax.xml.bind.Marshaller;
import javax.xml.bind.Unmarshaller;
import java.io.File;

public class JAXBExample {
    public static void main(String[] args) {
        try {
            // 创建JAXB上下文对象
            JAXBContext jaxbContext = JAXBContext.newInstance(YourRootClass.class);

            // 创建Unmarshaller对象，用于将XML转换为Java对象
            Unmarshaller unmarshaller = jaxbContext.createUnmarshaller();

            // 加载XML文档并将其转换为Java对象
            YourRootClass root = (YourRootClass) unmarshaller.unmarshal(new File("your-xml-file.xml"));

            // 删除XML层，根据你的需求进行操作

            // 创建Marshaller对象，用于将Java对象转换为XML
            Marshaller marshaller = jaxbContext.createMarshaller();
            marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);

            // 将更新后的Java对象转换为XML文档
            marshaller.marshal(root, new File("updated-xml-file.xml"));
        } catch (JAXBException e) {
            e.printStackTrace();
        }
    }
}