根据地址获取经度纬度

package net.intelink.express.httprequest;

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;

public class LatitudeUtils {

public static final String KEY_1 = "7d9fbeb43e975cd1e9477a7e5d5e192a";

/**
* 根据地址获取经度纬度
* @param address
* @return
*/
public static Map<String, String> getGeocoderLatitude(String address) {
BufferedReader in = null;
try {
address = URLEncoder.encode(address, "UTF-8");
URL tirc = new URL("http://api.map.baidu.com/geocoder?address=" + address + "&output=json&key=" + 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<String, String> map = null;
if (!"".equals(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<String, String>();
map.put("lng", lng); // 经度
map.put("lat", lat); // 纬度
return map;
}
}
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
in.close();
} catch (IOException e) {
e.printStackTrace();
}
}
return null;
}
}