如何在java中将XML转换为JSON？

   <dependency>
       <groupId>com.fasterxml.jackson.core</groupId>
       <artifactId>jackson-databind</artifactId>
       <version>2.13.0</version>
    </dependency>
   <dependency>
       <groupId>com.fasterxml.jackson.dataformat</groupId>
       <artifactId>jackson-dataformat-xml</artifactId>
       <version>2.13.0</version>
    </dependency>
</dependencies>

import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.dataformat.xml.XmlMapper;

public class XmlToJson {
    public static void main(String[] args) {
        String xml = "<root><name>张三</name><age>30</age><city>北京</city></root>";

        try {
            XmlMapper xmlMapper = new XmlMapper();
            JsonNode jsonNode = xmlMapper.readValue(xml, JsonNode.class);

            ObjectMapper jsonMapper = new ObjectMapper();
            String json = jsonMapper.writeValueAsString(jsonNode);

            System.out.println(json);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

{
  "root": {
    "name": "张三",
    "age": 30,
    "city": "北京"
  }
}