Java通过百度地图API获取地址经纬度

import java.util.HashMap;import java.util.Map;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;import java.net.MalformedURLException;import java.net.URL;import java.net.URLConnection;import net.sf.json.JSONObject;public class LngAndLatUtil {public static Map<String,Double> getLngAndLat(String address){Map<String,Double> map=new HashMap<String, Double>(); String url = "http://api.map.baidu.com/geocoder/v2/?address="+address+"&output=json&ak=你自己的ak值";        String json = loadJSON(url);        JSONObject obj = JSONObject.fromObject(json);        if(obj.get("status").toString().equals("0")){          double lng=obj.getJSONObject("result").getJSONObject("location").getDouble("lng");          double lat=obj.getJSONObject("result").getJSONObject("location").getDouble("lat");          map.put("lng", lng);          map.put("lat", lat);          //System.out.println("经度："+lng+"---纬度："+lat);        }else{          //System.out.println("未找到相匹配的经纬度！");        }return map;} public static String loadJSON (String url) {        StringBuilder json = new StringBuilder();        try {            URL oracle = new URL(url);            URLConnection yc = oracle.openConnection();            BufferedReader in = new BufferedReader(new InputStreamReader(                                        yc.getInputStream()));            String inputLine = null;            while ( (inputLine = in.readLine()) != null) {                json.append(inputLine);            }            in.close();        } catch (MalformedURLException e) {        } catch (IOException e) {        }        return json.toString();    }}//把代码中的ak值（红色字部分）更改为你自己的ak值，在百度地图API中注册一下就有。//调用方式：Map<String,Double> map=LngAndLatUtil.getLngAndLat("上海市黄浦区六合路");System.out.println("经度："+map.get("lng")+"---纬度："+map.get("lat"));