경로 거리 계산을 구현하기 위해 Java 코드를 통해 Amap API를 호출하는 방법

import com.alibaba.fastjson.JSONObject; import com.google.common.collect.Lists; import org.apache.http.HttpResponse; import org.apache.http.client.HttpClient; import org.apache.http.client.methods.HttpGet; import org.apache.http.impl.client.CloseableHttpClient; import org.apache.http.impl.client.HttpClientBuilder; import org.apache.http.util.EntityUtils; import java.io.IOException; import java.util.HashMap; import java.util.List; import java.util.Map; public class PathDistanceCalculator { private static final String AMAP_API_KEY = "your_amap_key"; public static double calculateDistance(double startLng, double startLat, double endLng, double endLat) { String apiUrl = "https://restapi.amap.com/v3/distance"; String url = String.format("%s?key=%s&origins=%f,%f&destination=%f,%f", apiUrl, AMAP_API_KEY, startLng, startLat, endLng, endLat); try (CloseableHttpClient httpClient = HttpClientBuilder.create().build()) { HttpGet request = new HttpGet(url); HttpResponse response = httpClient.execute(request); String resultJson = EntityUtils.toString(response.getEntity()); JSONObject jsonObject = JSONObject.parseObject(resultJson); List> results = jsonObject.getJSONArray("results").toJavaList(HashMap.class); Map distanceInfo = results.get(0); return Double.parseDouble(distanceInfo.get("distance").toString()); } catch (IOException e) { e.printStackTrace(); return -1; } } public static void main(String[] args) { double startLng = 116.397477; double startLat = 39.908692; double endLng = 121.472644; double endLat = 31.231706; double distance = calculateDistance(startLng, startLat, endLng, endLat); System.out.println("距离：" + distance + "米"); } }