Android — извлекает данные из различных php / url и обновляет текстовое представление на основе возвращаемого значения url

Я пытаюсь обновить текстовое представление на основе возвращаемого значения из URL. Первый URL, возвращаемое значение обновляет текстовое представление. но второй URL, текстовое представление не обновляется с данными, оно только пустое.

открытый класс MainActivity расширяет AppCompatActivity {

// CONNECTION_TIMEOUT and READ_TIMEOUT are in milliseconds
public static final int CONNECTION_TIMEOUT = 10000;
public static final int READ_TIMEOUT = 15000;
TextView textHost, textOS;

StringBuilder result, resultOS;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

textHost = (TextView) findViewById(R.id.textHost);
textOS = (TextView) findViewById(R.id.textOS);

//Make call to AsyncRetrieve
new AsyncRetrieve().execute();
}

private class AsyncRetrieve extends AsyncTask<String, String, String>
{
ProgressDialog pdLoading = new ProgressDialog(MainActivity.this);
HttpURLConnection conn, connOS;
URL url, urlOS = null;

//this method will interact with UI, here display loading message
@Override
protected void onPreExecute() {
super.onPreExecute();

pdLoading.setMessage("\tLoading...");
pdLoading.setCancelable(false);
pdLoading.show();

}

// This method does not interact with UI, You need to pass result to onPostExecute to display
@Override
protected String doInBackground(String... params)
{
try
{
// Enter URL address where your php file resides
url = new URL("http://192.168.1.13/fyp/Cpu.php");
urlOS = new URL ("http://192.168.1.13/fyp/Name.php");

} catch (MalformedURLException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
return e.toString();
}

try
{
// Setup HttpURLConnection class to send and receive data from php
conn = (HttpURLConnection) url.openConnection();
conn.setReadTimeout(READ_TIMEOUT);
conn.setConnectTimeout(CONNECTION_TIMEOUT);
conn.setRequestMethod("GET");

conn.setDoOutput(true);

connOS = (HttpURLConnection) urlOS.openConnection();
connOS.setReadTimeout(READ_TIMEOUT);
connOS.setConnectTimeout(CONNECTION_TIMEOUT);
connOS.setRequestMethod("GET");

// setDoOutput to true as we recieve data from json file
connOS.setDoOutput(true);

} catch (IOException e1)
{
// TODO Auto-generated catch block
e1.printStackTrace();
return e1.toString();
}

try
{
int response_code = conn.getResponseCode();
int responseOS = connOS.getResponseCode();

// Check if successful connection made
if (response_code == HttpURLConnection.HTTP_OK)
{
// Read data sent from server
InputStream input = conn.getInputStream();
BufferedReader reader = new BufferedReader(new InputStreamReader(input));
result = new StringBuilder();
String line;

while ((line = reader.readLine()) != null)
{
result.append(line);
}

// Pass data to onPostExecute method
return (result.toString());

}

if (responseOS == HttpURLConnection.HTTP_OK)
{
// Read data sent from server
InputStream input = connOS.getInputStream();
BufferedReader reader = new BufferedReader(new InputStreamReader(input));
resultOS = new StringBuilder();
String line;

while ((line = reader.readLine()) != null)
{
resultOS.append(line);
}

// Pass data to onPostExecute method
return (resultOS.toString());
}

else
{
return ("unsuccessful");
}

} catch (IOException e)
{
e.printStackTrace();
return e.toString();
} finally
{
conn.disconnect();
connOS.disconnect();
}}

public void output()
{

textHost.setText(result); //the textview is updated based on data fetch on url
textOS.setText(resultOS); //the data does not show

}

// this method will interact with UI, display result sent from doInBackground method
@Override
protected void onPostExecute(String result)
{
super.onPostExecute(result);

pdLoading.dismiss();

output();
//textHost.setText(result.toString());
//textOS.setText(resultOS.toString());}

}

}