Dalam API Peta Baidu, bagaimana untuk menggunakan Java untuk mendapatkan maklumat jalan di lokasi yang ditentukan?

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;

public static String getRoadInfo(double lat, double lng) {
    String roadInfo = "";
    
    try {
        // 创建URL对象并构建请求URL
        URL url = new URL("http://api.map.baidu.com/road/v1/nearest_roads?ak=your_ak&coord_type=wgs84ll&point=" + lat + "," + lng);

        // 创建HttpURLConnection对象并打开连接
        HttpURLConnection connection = (HttpURLConnection) url.openConnection();
        connection.setRequestMethod("GET");

        // 获取返回数据
        BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));
        String line;
        StringBuilder response = new StringBuilder();
        while ((line = reader.readLine()) != null) {
            response.append(line);
        }
        reader.close();

        // 解析JSON数据
        JSONObject jsonObject = new JSONObject(response.toString());
        JSONArray roadArray = jsonObject.getJSONArray("roads");
        if (roadArray.length() > 0) {
            roadInfo = roadArray.getJSONObject(0).getString("name");
        }
    } catch (Exception e) {
        e.printStackTrace();
    }

    return roadInfo;
}

public static void main(String[] args) {
    double lat = 39.983424;// 纬度
    double lng = 116.322987;// 经度
    
    String roadInfo = getRoadInfo(lat, lng);
    System.out.println("道路信息：" + roadInfo);
}