android根据基站信息获取经纬度

private boolean displayMap(int cellID, int lac) throws Exception
{
String urlString = "http://www.google.com/glm/mmap";

//---open a connection to Google Maps API---
URL url = new URL(urlString);
URLConnection conn = url.openConnection();
HttpURLConnection httpConn = (HttpURLConnection) conn;
httpConn.setRequestMethod("POST");
httpConn.setDoOutput(true);
httpConn.setDoInput(true);
httpConn.connect();

//---write some custom data to Google Maps API---
OutputStream outputStream = httpConn.getOutputStream();
WriteData(outputStream, cellID, lac);

//---get the response---
InputStream inputStream = httpConn.getInputStream();
DataInputStream dataInputStream = new DataInputStream(inputStream);

//---interpret the response obtained---
dataInputStream.readShort();
dataInputStream.readByte();
int code = dataInputStream.readInt();

if (code == 0) {
double lat = (double) dataInputStream.readInt() / 1000000D;
double lng = (double) dataInputStream.readInt() / 1000000D;
dataInputStream.readInt();
dataInputStream.readInt();
dataInputStream.readUTF();
Toast.makeText(this,lat+"   "+lng,Toast.LENGTH_LONG).show();
// Toast.makeText(this, "lat and long"+lat+"\n"+lng,200 );
//---display Google Maps---
String uriString = "geo:" + lat + "," + lng;
Intent intent = new Intent(android.content.Intent.ACTION_VIEW,Uri.parse(uriString));
// System.out.println("hiii"+uriString);
startActivity(intent);
return true;
}
else
{
return false;
}
}