高德地图WebAPI : 驾车路径规划

来源：互联网发布：网络品牌营销案例分析编辑：程序博客网时间：2024/04/28 14:51
参考API

一个demo

获取路径规划返回结果中的两点间最短驾车距离

import java.io.BufferedReader;import java.io.BufferedReader;import java.io.InputStreamReader;import java.net.URI;import java.net.URL;import java.net.URLConnection;import net.sf.json.JSONArray;import net.sf.json.JSONObject;public class Test2 {        public  static String getHttpResponse(String allConfigUrl) {        BufferedReader in = null;        StringBuffer result = null;        try {            //url请求中如果有中文，要在接收方用相应字符转码            URI uri = new URI(allConfigUrl);            URL url = uri.toURL();            URLConnection connection = url.openConnection();            connection.setRequestProperty("Content-type", "text/html");            connection.setRequestProperty("Accept-Charset", "utf-8");            connection.setRequestProperty("contentType", "utf-8");            connection.connect();                 result = new StringBuffer();            //读取URL的响应            in = new BufferedReader(new InputStreamReader(connection.getInputStream(),"utf-8"));            String line;            while ((line = in.readLine()) != null) {                result.append(line);            }         return result.toString();           } catch (Exception e) {            e.printStackTrace();        }finally {            try {                if (in != null) {                    in.close();                }            } catch (Exception e2) {                e2.printStackTrace();            }        }        return null;    }    /*     * 高德地图WebAPI : 驾车路径规划     */    public static String distance(String origins,String destination) {         int strategy = 2;//strategy=2距离优先，一共有九种查询模式，详情查看API        String url = "http://restapi.amap.com/v3/direction/driving?"                    + "origin="+origins                    +"&destination="+destination                    +"&strategy="+strategy                    +"&extensions=base&key=你申请的key";        JSONObject jsonobject = JSONObject.fromObject(getHttpResponse(url));        System.out.println(jsonobject.toString());        JSONArray pathArray = jsonobject.getJSONObject("route").getJSONArray("paths");        String distanceString  = pathArray.getJSONObject(0).getString("distance");        return distanceString;    }    public static void main(String[] args) {        //格式：   经度,纬度              //注意：高德最多取小数点后六位        String origin = "116.398140"+","+"26.059369";        String destination = "116.374028"+","+"39.907586";        String distance = distance(origin, destination);        System.out.println(distance);    }}
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