如何将嵌套的JsonObjects作为JSON字符串进行遍历？

import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;

public class JsonTraversalExample {
    public static void traverseJson(String jsonString) {
        try {
            ObjectMapper objectMapper = new ObjectMapper();
            JsonNode jsonNode = objectMapper.readTree(jsonString);
            traverseJsonNode(jsonNode);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    private static void traverseJsonNode(JsonNode jsonNode) {
        if (jsonNode.isObject()) {
            jsonNode.fields().forEachRemaining(entry -> {
                String key = entry.getKey();
                JsonNode value = entry.getValue();
                System.out.println("Key: " + key);
                System.out.println("Value: " + value);
                traverseJsonNode(value);
            });
        } else if (jsonNode.isArray()) {
            jsonNode.forEach(JsonTraversalExample::traverseJsonNode);
        }
    }

    public static void main(String[] args) {
        String jsonString = "{\"name\":\"John\",\"age\":30,\"address\":{\"street\":\"123 Main St\",\"city\":\"New York\"},\"hobbies\":[\"reading\",\"traveling\"]}";
        traverseJson(jsonString);
    }
}