Dalam API Peta Baidu, bagaimana untuk mendapatkan butiran POI (Point of Interest) lokasi tertentu menggunakan Java?

import net.sf.json.JSONArray;
import net.sf.json.JSONObject;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;

public static void getPOIDetails(String location, String query, String ak) {
    try {
        // 构造URL
        String urlString = "http://api.map.baidu.com/place/v2/search?query=" + query + "&location=" + location + "&radius=2000&output=json&ak=" + ak;
        URL url = new URL(urlString);
        // 打开连接
        HttpURLConnection connection = (HttpURLConnection) url.openConnection();
        // 设置请求参数
        connection.setRequestMethod("GET");
        connection.setRequestProperty("Content-Type", "application/json");
        // 获取响应结果
        BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream(), "UTF-8"));
        String line;
        StringBuilder response = new StringBuilder();
        while ((line = reader.readLine()) != null) {
            response.append(line);
        }
        reader.close();
        // 解析JSON结果
        JSONObject jsonObject = JSONObject.fromObject(response.toString());
        JSONArray results = jsonObject.getJSONArray("results");
        // 输出POI详细信息
        for (int i = 0; i < results.size(); i++) {
            JSONObject result = results.getJSONObject(i);
            System.out.println("POI名称：" + result.getString("name"));
            System.out.println("POI地址：" + result.getString("address"));
            System.out.println("POI电话：" + result.getString("telephone"));
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
}

public static void main(String[] args) {
    // 要查询的位置坐标
    String location = "39.915,116.404";
    // 要查询的POI类型
    String query = "餐馆";
    // 百度地图开发者API密钥
    String ak = "Your API Key";
    // 获取POI详细信息
    getPOIDetails(location, query, ak);
}