Произошла ошибка при выполнении doinbackground. ⇐ Android

[Anonymous]

Произошла ошибка при выполнении doinBackground().

Код: Выделить всё

class PostComment extends AsyncTask {

@Override
protected void onPreExecute() {
super.onPreExecute();
pDialog = new ProgressDialog(AddComment.this);
pDialog.setMessage("Attempting login...");
pDialog.setIndeterminate(false);
pDialog.setCancelable(true);
pDialog.show();
//postData("deepika");
}

@Override
protected String doInBackground(String... args) {
// TODO Auto-generated method stub
// Check for success tag
int success;
String post_title = intime.getText().toString();
String post_message = outtime.getText().toString();
SharedPreferences sp = PreferenceManager
.getDefaultSharedPreferences(AddComment.this);
String post_username = sp.getString("username", "anon");
try {
// Building Parameters
List params = new ArrayList();
params.add(new BasicNameValuePair("username", post_username));
params.add(new BasicNameValuePair("intime", post_title));
params.add(new BasicNameValuePair("outtime", post_message));

Log.d("request!", "starting");
// getting product details by making HTTP request
JSONObject json = jsonParser.makeHttpRequest(POST_COMMENT_URL, "POST",
params);
//JSONObject json1 = jsonParser.makeHttpRequest("http://192.168.10.30/webservice/comments.php", "POST",
//  params);
// check your log for json response
Log.d("Login attempt", json.toString());

// json success tag
success = json.getInt(TAG_SUCCESS);
if (success == 1) {

Log.d("Attendence Marked!", json.toString());
//finish();
return json.getString(TAG_MESSAGE);
}else{
Log.d("Attendence Failure!", json.getString(TAG_MESSAGE));
return json.getString(TAG_MESSAGE);

}
} catch (JSONException e) {
e.printStackTrace();
}

return null;

}

protected void onPostExecute(String file_url) {
// dismiss the dialog once product deleted
pDialog.dismiss();
finish();
if (file_url != null) {
Toast.makeText(AddComment.this, file_url, Toast.LENGTH_LONG).show();
}
}
}

Это журнал ошибок:


11-05 05:03:20.171: E/AndroidRuntime(3171): ФАТАЛЬНОЕ ИСКЛЮЧЕНИЕ: AsyncTask #1

11-05 05:03:20.171: E/AndroidRuntime(3171): Процесс: com.example.mysqltest, PID: 3171

11-05 05:03:20.171: E/AndroidRuntime(3171): java.lang.RuntimeException: произошла ошибка при выполнении doInBackground()

11-05 05:03:20.171: E/AndroidRuntime(3171): at android.os.AsyncTask$3.done(AsyncTask.java:300)

11-05 05:03:20.171: E/AndroidRuntime(3171): at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:355)

11-05 05:03:20.171: E/AndroidRuntime(3171): в java.util.concurrent.FutureTask.setException(FutureTask.java:222)

11-05 05:03:20.171: E/AndroidRuntime(3171): at java.util.concurrent.FutureTask.run(FutureTask.java:242)

11-05 05:03:20.171: E/AndroidRuntime(3171): at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:231)

11-05 05:03:20.171: E/AndroidRuntime(3171): в java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)

11-05 05:03:20.171: E/AndroidRuntime(3171): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)

11-05 05:03:20.171: E/AndroidRuntime(3171): в java.lang.Thread.run(Thread.java:841)

11-05 05:03:20.171: E/AndroidRuntime(3171): вызвано: java.lang.NullPointerException


Подробнее здесь: https://stackoverflow.com/questions/267 ... background