百度驾车距离以及通过经纬度获取地址

appkey 使用自己的
 1 private final static String DRIVING = "http://api.map.baidu.com/routematrix/v2/driving?output=json&tactics=12&ak=";


    private static String getDistance(String appkey,String fromLat, String fromLng,String toLat, String toLng) throws IOException {
        StringBuilder result = new StringBuilder();
        URL url = new URL(getURL(appkey,fromLat, fromLng, toLat,toLng));
        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
        conn.setDoInput(true);
        conn.setDoOutput(true);
        conn.setUseCaches(false);
        conn.connect();
        BufferedReader bReader = new BufferedReader(new InputStreamReader(conn.getInputStream(), "utf-8"));
        String str = null;
        while ((str = bReader.readLine()) != null) {
            result.append(str);
        }
        bReader.close();
        conn.disconnect();
        return result.toString();
    }

    private static String getURL(String appkey,String fromLat, String fromLng,String toLat, String toLng) {
        StringBuilder url = new StringBuilder(DRIVING);
        url.append(appkey);
        if (!fromLat.equals("") && !fromLng.equals("")) {
            url.append("&origins=");
            url.append(new StringBuilder(fromLat).append(",").append(new StringBuilder(fromLng)));
        }
        if (!toLat.equals("") && !toLng.equals("")) {
            url.append("&destinations=");
            url.append(new StringBuilder(toLat).append(",").append(new StringBuilder(toLng)));
        }
        return url.toString();
    }

    /***
     * @Author 
     * @Description 获取百度驾车时间与距离
     **/
    public static Map<String,Integer> resultToMap(String appkey,String fromLat, String fromLng,String toLat, String toLng) throws IOException{
        String result = getDistance(appkey, fromLat, fromLng, toLat, toLng);
        Map<String,Integer> map = new HashMap<>();
        int status = (int)new JSONObject(result).get("status");
        if (status == 0){//成功
            map.put("status",0);
            JSONObject object = new JSONObject(result).getJSONArray("result").getJSONObject(0);
            System.out.println(object.getJSONObject("duration").get("value"));
            int duration = (int)object.getJSONObject("duration").get("value");
            //持续时间（单位是s）
            map.put("duration",duration);
            //距离（单位是m）
            int distance = (int)object.getJSONObject("distance").get("value");
            map.put("distance",distance);
        }else {//失败
            map.put("status",1);
        }
        return map;
    }

    /***
     * @Author
     * @Description 通过经纬度获取地址
     **/
    public static String getLocationInfo(String appkey, String lat, String lng) {
        String url = "http://api.map.baidu.com/geocoder/v2/?location=" + lat + ","
                + lng + "&output=json&ak=" + appkey + "&pois=0";
        String s = HttpRequestUtil.get(url);
        if (StringUtils.isEmpty(s) || s.equals("请求失败")) {
            return null;
        }
        com.alibaba.fastjson.JSONObject jsonObject = com.alibaba.fastjson.JSON.parseObject(s);
        String adress = "";
        if (jsonObject != null) {
            Integer status = jsonObject.getInteger("status");
            if (status == 0) {
                adress = jsonObject.getJSONObject("result").getString("formatted_address");
            }
        }
        return adress;
    }