在百度地图API中，如何使用Java获取指定位置的交通限行信息？

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

public class TrafficRestrictionDemo {

    public static void main(String[] args) {
        String ak = "your_app_key"; // 替换为自己的应用密钥
        String query = "北京市海淀区中关村"; // 指定查询的位置

        try {
            // URL编码查询字符串
            String encodedQuery = URLEncoder.encode(query, "UTF-8");

            // 构造请求URL
            String urlStr = "http://api.map.baidu.com/traffic/v1/restriction?ak=" + ak + "&location=" + encodedQuery;

            URL url = new URL(urlStr);
            HttpURLConnection connection = (HttpURLConnection) url.openConnection();
            connection.setRequestMethod("GET");

            // 获取响应结果
            int responseCode = connection.getResponseCode();
            if (responseCode == 200) {
                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
                String result = response.toString();
                // 这里可以使用JSON解析库来解析result，获取交通限行信息
                // ...
            } else {
                System.out.println("请求失败，错误码：" + responseCode);
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}