Je travaille sur un projet Android Studio avec plusieurs activités. J'essaie actuellement de lire la sortie d'un servlet Java sur localhost, mais il semble se bloquer en raison d'une autorisation de socket.
J'ai créé un nouveau projet, utilisé exactement le même code et travaillé parfaitement. Donc je ne comprends pas pourquoi n'est pas disposé à travailler sur mon projet.
public class LoginActivity extends AppCompatActivity {
String apiUrl = "http://10.0.2.2:8080/ProyectService/Servlet?action=login";
EditText username;
EditText password;
AlertDialog dialog;
Usuario session;
@Override
public void onCreate(Bundle savedInstanceState) {
// Inicializacion de ventana
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_login);
getSupportActionBar().hide();
// Inicializacion de componentes
username = findViewById(R.id.username);
password = findViewById(R.id.password);
// Inicializacion de funcionalidad de botones
Button button= (Button) findViewById(R.id.login);
button.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
UserLoginTask mAuthTask = new UserLoginTask();
mAuthTask.execute();
}
});
password = findViewById(R.id.password);
createAlertDialog("Usuario o Contraseña Incorrectos");
}
private void createAlertDialog(String message){
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setMessage(message)
.setTitle("Error");
dialog = builder.create();
}
// ASYNCRONUS NETWORK PROCESS
public class UserLoginTask extends AsyncTask<String, String, String> {
@Override
protected void onPreExecute() {
}
@Override
protected String doInBackground(String... params) {
// implement API in background and store the response in current variable
String current = "";
try {
URL url;
HttpURLConnection urlConnection = null;
try {
url = new URL(apiUrl);
System.out.println(apiUrl);
urlConnection = (HttpURLConnection) url
.openConnection();
InputStream in = urlConnection.getInputStream();
InputStreamReader isw = new InputStreamReader(in);
int data = isw.read();
while (data != -1) {
current += (char) data;
data = isw.read();
//System.out.print(current);
}
System.out.print(current);
// return the data to onPostExecute method
return current;
} catch (Exception e) {
e.printStackTrace();
} finally {
if (urlConnection != null) {
urlConnection.disconnect();
}
}
} catch (Exception e) {
e.printStackTrace();
return "Exception: " + e.getMessage();
}
return current;
}
}
protected void onPostExecute(String success) {
Log.i(success, "");
//attemptLogin();
}
}
Je m'attends à ce qu'il lise les données mais il plante à cette ligne:
InputStream in = urlConnection.getInputStream();
Voici la sortie d'erreur:
java.net.SocketException: socket failed: EPERM (Operation not permitted)
at java.net.Socket.createImpl(Socket.java:492)
at java.net.Socket.getImpl(Socket.java:552)
at java.net.Socket.setSoTimeout(Socket.java:1180)
at com.android.okhttp.internal.io.RealConnection.connectSocket(RealConnection.java:143)
at com.android.okhttp.internal.io.RealConnection.connect(RealConnection.java:116)
at com.android.okhttp.internal.http.StreamAllocation.findConnection(StreamAllocation.java:186)
at com.android.okhttp.internal.http.StreamAllocation.findHealthyConnection(StreamAllocation.java:128)
at com.android.okhttp.internal.http.StreamAllocation.newStream(StreamAllocation.java:97)
at com.android.okhttp.internal.http.HttpEngine.connect(HttpEngine.java:289)
at com.android.okhttp.internal.http.HttpEngine.sendRequest(HttpEngine.java:232)
at com.android.okhttp.internal.huc.HttpURLConnectionImpl.execute(HttpURLConnectionImpl.java:465)
at com.android.okhttp.internal.huc.HttpURLConnectionImpl.getResponse(HttpURLConnectionImpl.java:411)
at com.android.okhttp.internal.huc.HttpURLConnectionImpl.getInputStream(HttpURLConnectionImpl.java:248)
at com.example.controller.LoginActivity$UserLoginTask.doInBackground(LoginActivity.java:114)
at com.example.controller.LoginActivity$UserLoginTask.doInBackground(LoginActivity.java:93)
at android.os.AsyncTask$3.call(AsyncTask.java:378)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:289)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
at java.lang.Thread.run(Thread.java:919)