根据地址 得到坐标

Map<String, String> address = LatitudeUtils
.getGeocoderLatitude(kes.getAddress());
try {
if (address.containsKey("lng")
&& address.containsKey("lat")) {
final String lon = address.get("lng");
final String lat = address.get("lat");
ke.setLatitude(lat);
ke.setLongitude(lon);
}
} catch (NullPointerException ex) {

ke.setLatitude("");
ke.setLongitude("");
}

public class LatitudeUtils {
public static final String KEY_1 = "173bdc0916ac8c0c6fb1d95e799242b1";

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(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);
map.put("lat", lat);
return map;
}
}
}catch (Exception e) {
e.printStackTrace();
}finally{
try {
in.close();
} catch (IOException e) {
e.printStackTrace();
}
}

return null;
}
}