如何遍历HttpClient返回的JSON

import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.HttpClientBuilder;

public class Main {
    public static void main(String[] args) {
        try {
            // 创建HttpClient对象
            HttpClient httpClient = HttpClientBuilder.create().build();

            // 创建HttpGet请求对象，设置URL
            HttpGet httpGet = new HttpGet("http://example.com/api/data");

            // 发送请求，获取响应
            HttpResponse response = httpClient.execute(httpGet);

            // 获取响应的实体
            HttpEntity entity = response.getEntity();

            // 使用Jackson库解析JSON
            ObjectMapper objectMapper = new ObjectMapper();
            JsonNode rootNode = objectMapper.readTree(entity.getContent());

            // 遍历JSON对象
            for (JsonNode node : rootNode) {
                // 获取属性值
                String name = node.get("name").asText();
                int age = node.get("age").asInt();

                // 执行操作，如打印属性值
                System.out.println("Name: " + name + ", Age: " + age);
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}