登陆高德API官网,注册,申请Key
官网地址:http://lbs.amap.com
Elipse 输入下面代码
注意要在URL上输入自己申请的Key
package com.saiita.util;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStream;import java.io.InputStreamReader;import java.io.Reader;import java.net.URL;import java.nio.charset.Charset;import org.json.JSONException;import org.json.JSONObject;public class Test { private static String readAll(Reader rd) throws IOException { StringBuilder sb = new StringBuilder(); int cp; while ((cp = rd.read()) != -1) { sb.append((char) cp); } return sb.toString(); } public static JSONObject readJsonFromUrl(String url) throws IOException, JSONException { InputStream is = new URL(url).openStream(); try { BufferedReader rd = new BufferedReader(new InputStreamReader(is, Charset.forName("UTF-8"))); String jsonText = readAll(rd); JSONObject json = new JSONObject(jsonText); return json; } finally { is.close(); // System.out.println("同时 从这里也能看出 即便return了,仍然会执行finally的!"); } } public static void main(String[] args) throws IOException, JSONException { //这里调用高德的驾车规划api服务 详见 http://lbs.amap.com/api/webservice/summary/ JSONObject json = readJsonFromUrl("http://restapi.amap.com/v3/direction/walking?key=申请的Key&origin=116.481028,39.989644&destination=116.434446,39.90816"); System.out.println(json.toString()); System.out.println(((String) json.get("info"))); } }
运行
就会得到下面结果
{"route":{"paths":[{"duration":"8999","distance":"11249","steps":[{"duration":"10","assistant_action":[],"orientation":"西南","distance":"13","road":[],"instruction":"向西南步行13米左转","action":"左转","walk_type":"0","polyline":"116.481003,39.989311;116.480957,39.989265;116.480957,39.989265;116.480904,39.98922"},{"duration":"240","assistant_action":[],"orientation":"东南","distance":"300","road":"阜荣街","instruction":"沿阜荣街向东南步行300米右转","action":"右转","walk_type":"0","polyline":"116.480904,39.989212;116.480949,39.989185;116.481247,39.988991;116.481415,39.988888;116.481415,39.988888;116.481445,39.988865;116.481445,39.988865;116.482567,39.988125;116.483414,39.987583;116.483467,39.987404"},{"duration":"246","assistant_action":[],"orientation":"西南","distance":"308","road":"望京东路","instruction":"沿望京东路向西南步行308米左转","action":"左转","walk_type":"0","polyline":"116.483467,39.9874;116.483414,39.987354;116.483414,39.987354;116.482811,39.986816;116.482025,39.986088;116.482025,39.986088;116.481354,39.985489;116.481354,39.985489;116.481285,39.985435;116.481285,39.985435;116.481148,39.985275"},{"duration":"130","assistant_action":[],"orientation":"东南","distance":"162","road":"广顺南大街","instruction":"沿广顺南大街向东南步行162米右转","action":"右转","walk_type":"0","polyline":"116.481148,39.985271;116.481247,39.985203;116.481247,39.985203;116.48127,39.985092;116.482162,39.984493;116.482162,39.984493;116.482498,39.984257"},{"duration":"1022","assistant_action":[],"orientation":"西南","distance":"1278","road":"京密路","instruction":"沿京密路向西南步行1278米向右前方行走","action":"向右前方行走","walk_type":"0","polyline":"116.482498,39.984253;116.48246,39.984219;116.48217,39.983974;116.481659,39.983494;116.481659,39.983494;116.481239,39.983086;116.480728,39.982643;116.479652,39.981667;116.479652,39.981667;116.478668,39.980797;116.478096,39.98027;116.478096,39.98027;116.47802,39.980206;116.47802,39.980206;116.477982,39.980164;116.477982,39.980164;116.477699,39.979889;116.477585,39.979782;116.477211,39.979435;116.477211,39.979435;116.476852,39.979115;116.476852,39.979115;116.47673,39.979;116.47673,39.979;116.476044,39.97839;116.476044,39.97839;116.475113,39.977551;116.475113,39.977551;116.475105,39.977543;116.475105,39.977543;116.475029,39.977482;116.475029,39.977482;116.474312,39.976822;116.474312,39.976822;116.473885,39.976433;116.473885,39.976433;116.473289,39.975895;116.473289,39.975895;116.472763,39.97543"},{"duration":"302","assistant_action":[],"orientation":"西南","distance":"377","road":"京密路辅路","instruction":"沿京密路辅路向西南步行377米直行","action":"直行","walk_type":"0","polyline":"116.472763,39.975426;116.472214,39.975147;116.471886,39.974888;116.47139,39.974434;116.47139,39.974434;116.471161,39.97427;116.470993,39.974159;116.470642,39.973961;116.470345,39.973831;116.469994,39.97369;116.46978,39.973633;116.469208,39.973507"},{"duration":"290","assistant_action":[],"orientation":"西南","distance":"362","road":"北四环东路辅路","instruction":"沿北四环东路辅路向西南步行362米直行","action":"直行","walk_type":"0","polyline":"116.469208,39.973503;116.468994,39.973499;116.468834,39.973476;116.468613,39.973438;116.468498,39.973408;116.468399,39.973358;116.468285,39.973282;116.467834,39.972916;116.467834,39.972916;116.467033,39.972218;116.467033,39.972218;116.466705,39.971893;116.466637,39.971806;116.466614,39.971741;116.466576,39.971649;116.466568,39.971561;116.466568,39.971264"},{"duration":"254","assistant_action":[],"orientation":"南","distance":"318","road":"京密路辅路","instruction":"沿京密路辅路向南步行318米直行","action":"直行","walk_type":"0","polyline":"116.466568,39.971252;116.466553,39.971039;116.466522,39.970844;116.466461,39.970634;116.466354,39.970364;116.466278,39.970181;116.46611,39.969921;116.46611,39.969921;116.465965,39.96973;116.46579,39.969513;116.46563,39.969357;116.465599,39.969318;116.465599,39.969318;116.465523,39.969196;116.465446,39.969044;116.465225,39.968624"},{"duration":"1108","assistant_action":[],"orientation":"西南","distance":"1385","road":"京密路","instruction":"沿京密路向西南步行1385米直行","action":"直行","walk_type":"0","polyline":"116.465218,39.968613;116.464951,39.968372;116.464951,39.968372;116.464783,39.968212;116.464783,39.968212;116.464462,39.96793;116.464462,39.96793;116.462814,39.966434;116.462814,39.966434;116.462753,39.966381;116.462753,39.966381;116.4617,39.965416;116.4608,39.964596;116.4608,39.964596;116.460121,39.963982;116.460121,39.963982;116.459999,39.963863;116.459999,39.963863;116.459496,39.963428;116.459412,39.963341;116.459412,39.963341;116.459129,39.963093;116.459129,39.963093;116.458076,39.962139;116.458076,39.962139;116.457954,39.962021;116.457954,39.962021;116.457916,39.96199;116.457916,39.96199;116.457359,39.961475;116.457359,39.961475;116.457314,39.96143;116.457314,39.96143;116.45694,39.961113;116.45694,39.961113;116.456764,39.960964;116.456764,39.960964;116.456657,39.960884;116.456657,39.960884;116.456299,39.96064;116.456299,39.96064;116.456047,39.960472;116.455719,39.960297;116.455536,39.960213;116.455536,39.960213;116.454765,39.959839;116.45459,39.959747;116.454437,39.959652;116.454185,39.95945"},{"duratio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本作品采用知识共享署名-相同方式共享 4.0 国际许可协议进行许可。