如何在Java中从google距离矩阵Api中获取距离

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

public class DistanceMatrixExample {
    public static void main(String[] args) {
        String apiKey = "YOUR_API_KEY";
        String origin = "New York, USA";
        String destination = "Los Angeles, USA";

        try {
            // 构建请求URL
            String urlStr = "https://maps.googleapis.com/maps/api/distancematrix/json?origins="
                    + origin + "&destinations=" + destination + "&key=" + apiKey;

            // 发送HTTP GET请求
            URL url = new URL(urlStr);
            HttpURLConnection conn = (HttpURLConnection) url.openConnection();
            conn.setRequestMethod("GET");

            // 获取响应数据
            BufferedReader reader = new BufferedReader(new InputStreamReader(conn.getInputStream()));
            String line;
            StringBuilder response = new StringBuilder();
            while ((line = reader.readLine()) != null) {
                response.append(line);
            }
            reader.close();

            // 解析响应数据
            // 这里使用JSON解析库，如Jackson或Gson，来解析response.toString()中的JSON数据

            // 提取距离信息并输出
            // 根据API文档解析JSON数据，获取距离信息

        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}