Java调用百度地图接口获取经纬度

package com.findingroof.appserver.util;

/**
* Created by Administrator on 2017/10/19.
*/
import net.sf.json.JSONObject;
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 java.util.HashMap;
import java.util.Map;

/**
* 获取经纬度
*
* 获取之前需要访问http://lbsyun.baidu.com/获取密钥
* 密钥："密钥字符串"
*/
public class MapBaiduUtil {

public static void main(String[] args) throws IOException {
MapBaiduUtil getLatAndLngByBaidu = new MapBaiduUtil();

Map<String,Double> map=getLatAndLngByBaidu.getLngAndLat("杭州市华立科技园1号楼");
System.out.println("经度："+map.get("lng")+"---纬度："+map.get("lat"));
}

public  Map<String,Double> getLngAndLat(String address){
Map<String,Double> map=new HashMap<String, Double>();
String url = "http://api.map.baidu.com/geocoder?address="+address+"&output=json&ak=密钥字符创";
String json = loadJSON(url);
JSONObject obj = JSONObject.fromObject(json);
if(obj.get("status").toString().equals("OK")){
double l
4000
ng=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();
}

}