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;        }   }