Java 根据高德地图获取经纬度坐标

1: 申请高德服务key

/**
     * @param addressName
     * @param cityName
     * @Description 根据高德地图, 通过地址获取经纬度坐标
     * @Throws
     * @Return java.lang.String
     * @Date 2023-04-13 10:50:22
     * @Author WangKun
     */
    public static Map getLatAndLngOrGDMap(String addressName, String cityName) {
        try {
            Map map = new HashMap<>();
            String address = URLEncoder.encode(addressName, "UTF-8");
            String city = URLEncoder.encode(cityName, "UTF-8");
            String mapUrl = "http://restapi.amap.com/v3/geocode/geo?key=高德key&address=" + address + "&city=" + city;
            URL url = new URL(mapUrl);
            HttpURLConnection connection = (HttpURLConnection) url.openConnection();
            connection.connect();
            BufferedReader br = new BufferedReader(new InputStreamReader(connection.getInputStream()));
            String line;
            StringBuilder sb = new StringBuilder();
            while ((line = br.readLine()) != null) {
                sb.append(line);
            }
            br.close();
            connection.disconnect();
            JSONObject a = JSON.parseObject(sb.toString());
            JSONObject c = JSON.parseObject(JSON.parseArray(a.get("geocodes").toString()).get(0).toString());
            String location = c.get("location").toString();
            List result = Arrays.asList(location.split(","));
            map.put("lng", new BigDecimal(result.get(0)));
            map.put("lat", new BigDecimal(result.get(1)));
            return map;
        } catch (IndexOutOfBoundsException index) {
            throw new IndexOutOfBoundsException();
        } catch (Exception e) {
            e.printStackTrace();
            System.out.println("失败!");
        }
        return null;
    }

调用:

System.out.println(getLatAndLngOrGDMap("详细地址", "***市"));