使用Jackson将XML属性添加到手动构建的节点树

import com.fasterxml.jackson.annotation.JsonProperty;
import com.fasterxml.jackson.dataformat.xml.XmlMapper;
import com.fasterxml.jackson.dataformat.xml.annotation.JacksonXmlProperty;
import com.fasterxml.jackson.dataformat.xml.annotation.JacksonXmlRootElement;

@JacksonXmlRootElement(localName = "root")
public class MyXmlObject {
    @JacksonXmlProperty(isAttribute = true)
    @JsonProperty("id")
    private String id;

    @JsonProperty("name")
    private String name;

    // 省略构造函数、getter和setter方法

    public static void main(String[] args) throws Exception {
        // 创建XML节点树
        MyXmlObject obj = new MyXmlObject();
        obj.setId("123");
        obj.setName("example");

        // 序列化为XML
        XmlMapper xmlMapper = new XmlMapper();
        String xml = xmlMapper.writeValueAsString(obj);

        System.out.println(xml);
    }
}

<root id="123"><name>example</name></root>