调用百度API 将地址转换为经纬度

package com.yuezhu.utils;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLEncoder;
import java.util.HashMap;
import java.util.Map;

import org.apache.commons.lang.StringUtils;

public class LatitudeUtils {

    public static final String KEY_1 = "W5uLPmk6Q1gMdHKTBWhkrLf0Vlu5fbl6";



    public static Map getGeocoderLatitude(String address){
        BufferedReader in = null;
        try {
            //将地址转换成utf-8的16进制
            address = URLEncoder.encode(address, "UTF-8");
//       如果有代理，要设置代理，没代理可注释
//      System.setProperty("http.proxyHost","192.168.1.188");
//      System.setProperty("http.proxyPort","3128");
           // URL tirc = new URL("http://api.map.baidu.com/geocoder?address="+ address +"&output=json&key="+ KEY_1);
            URL tirc = new URL("http://api.map.baidu.com/geocoder/v2/?address="+ address +"&output=json&ak="+KEY_1);
            in = new BufferedReader(new InputStreamReader(tirc.openStream(),"UTF-8"));
            String res;
            StringBuilder sb = new StringBuilder("");
            while((res = in.readLine())!=null){
                sb.append(res.trim());
            }
            String str = sb.toString();
            Map map = null;
            if(StringUtils.isNotEmpty(str)){
                int lngStart = str.indexOf("lng\":");
                int lngEnd = str.indexOf(",\"lat");
                int latEnd = str.indexOf("},\"precise");
                if(lngStart > 0 && lngEnd > 0 && latEnd > 0){
                    String lng = str.substring(lngStart+5, lngEnd);
                    String lat = str.substring(lngEnd+7, latEnd);
                    map = new HashMap();
                    map.put("lng", lng);
                    map.put("lat", lat);
                    return map;
                }
            }
        }catch (Exception e) {
            e.printStackTrace();
        }finally{
            try {
                in.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        return null;
    }

}