通过精确地址获取经纬度

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;

public class BaiduMapUtil {
    /**
     * @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 (Exception 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 {
        BaiduMapUtil getLatAndLngByBaidu = new BaiduMapUtil();
        Object[] o = getLatAndLngByBaidu.getCoordinate("北京南海家园七里");
        System.out.println(o[0]);// 经度
        System.out.println(o[1]);// 纬度
    }
}