根据百度地图API,反向获取某个位置的经纬度

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package cn.ac.bcc.risk.modules.risk.utils;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;import java.io.UnsupportedEncodingException;import java.net.MalformedURLException;import java.net.URL;import java.net.URLConnection;/** * 获取经纬度* * @author jueyue 返回格式：Map<String,Object> map map.put("status", * reader.nextString());//状态 map.put("result", list);//查询结果 * list<map<String,String>> * 密钥:f247cdb592eb43ebac6ccd27f796e2d2 */public class GetLatAndLngByBaidu {     /**     * @param addr     * 查询的地址     * @return     * @throws IOException     */    public static  Object[] getCoordinate(String addr) throws IOException {         String lng = null;//经度        String lat = null;//纬度        String address = null;         try {             address = java.net.URLEncoder.encode(addr, "UTF-8");         }catch (UnsupportedEncodingException e1) {             e1.printStackTrace();         }         String key = "f247cdb592eb43ebac6ccd27f796e2d2";         String url = String .format("http://api.map.baidu.com/geocoder?address=%s&output=json&key=%s", address, key);         URL myURL = null;         URLConnection httpsConn = null;         try {             myURL = new URL(url);         } catch (MalformedURLException e) {             e.printStackTrace();         }         InputStreamReader insr = null;        BufferedReader br = null;        try {             httpsConn = (URLConnection) myURL.openConnection();// 不使用代理             if (httpsConn != null) {                 insr = new InputStreamReader( httpsConn.getInputStream(), "UTF-8");                 br = new BufferedReader(insr);                 String data = null;                 int count = 1;                while((data= br.readLine())!=null){                     if(count==5){                        lng = (String)data.subSequence(data.indexOf(":")+1, data.indexOf(","));//经度                        count++;                    }else if(count==6){                        lat = data.substring(data.indexOf(":")+1);//纬度                        count++;                    }else{                        count++;                    }                }             }         } catch (IOException e) {             e.printStackTrace();         } finally {            if(insr!=null){                insr.close();            }            if(br!=null){                br.close();            }        }        return new Object[]{lng,lat};     }     public static void main(String[] args) throws IOException {        GetLatAndLngByBaidu getLatAndLngByBaidu = new GetLatAndLngByBaidu();        Object[] o = getLatAndLngByBaidu.getCoordinate("广州");        System.out.println(o[0]);//经度        System.out.println(o[1]);//纬度        System.out.println("----------------------");        // 经度        String longitude = (String) o[0];        // 维度        String latitude = (String) o[1];        System.out.println(longitude);        System.out.println(latitude);    }}
原文博客的地址:
http://www.cnblogs.com/shihaiming/p/7048233.html
经测试:好使!
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