Jednak pojawił się nowy podobny problem. Zainspirowany projektem:
https://github.com/JaretWright/GUIDemo/tree/master/src/guidemo
Chciałbym wyświetlić w TableView ObservableList z klasy Bank. MenuController zmienia sceny i przechodzi do logowania admina bądź klienta. KontoBankowe to kontroler dla logowania administratora i klienta. Po zalogowaniu administrator chce mieć podgląd kont bankowych za pomocą TableView, jednak program zwraca masę błędów już w Menu. Gdy operowałem na polach typu String lista nie wyświetlała się, ale wyświetlanie okien logowania i samo logowanie przebiegało bez problemu tzn gdy usunę metodę initialize z KontoBankowe i zamienię pola z SimpleStringProperty na String.
package kontobankowe;
import java.io.IOException;
import javafx.event.ActionEvent;
import javafx.fxml.FXML;
import javafx.fxml.FXMLLoader;
import javafx.scene.Node;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.stage.Stage;
public class MenuController {
@FXML private Button btnWyjscie;
public void pokazLogowanieKlienta (ActionEvent event) throws IOException{
Parent logowanieWidok = FXMLLoader.load(getClass().getResource("FXMLLogowanieKlient.fxml"));
Scene scene = new Scene(logowanieWidok);
//This line gets the Stage information
Stage window = (Stage)((Node)event.getSource()).getScene().getWindow();
window.setScene(scene);
window.show();
}
public void pokazLogowanieAdministratora (ActionEvent event) throws IOException{
Parent logowanieWidok = FXMLLoader.load(getClass().getResource("FXMLLogowanieAdministrator.fxml"));
Scene scene = new Scene(logowanieWidok);
//This line gets the Stage information
Stage window = (Stage)((Node)event.getSource()).getScene().getWindow();
window.setScene(scene);
window.show();
}
public void zamknijAplikacje (ActionEvent event) throws IOException{
Stage stage = (Stage)btnWyjscie.getScene().getWindow();
stage.close();
}
}
package kontobankowe;
import javafx.beans.property.SimpleStringProperty;
public class Konto {
private SimpleStringProperty imie;
private SimpleStringProperty nazwisko;
private SimpleStringProperty nrKonta;
private SimpleStringProperty haslo;
private double stanKonta = 0;
private boolean pierwszeWejscie = true;
private boolean autoryzacja = false;
Konto(String imie, String nazwisko, String nrKonta,String haslo){
this.imie = new SimpleStringProperty(imie);
this.nazwisko= new SimpleStringProperty(nazwisko);
this.nrKonta= new SimpleStringProperty(nrKonta);
this.haslo= new SimpleStringProperty(haslo);
}
public void setImie(String value) { imie.set(value); }
public String getImie() { return imie.get(); }
public void setNazwisko(String value) { nazwisko.set(value); }
public String getNazwisko() { return nazwisko.get(); }
public void setNrKonta(String value) { nrKonta.set(value); }
public String getNrKonta() { return nrKonta.get(); }
public void setHaslo(String value) { haslo.set(value); }
public String getHaslo() { return haslo.get(); }
public boolean zaloguj(String podanyLogin, String podaneHaslo){
if(podaneHaslo.equals(haslo) && podanyLogin.equals(nrKonta)){
autoryzacja = true;
}
return autoryzacja;
}
}
package kontobankowe;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
public class Bank {
public ObservableList<Konto> getKonta(){
ObservableList<Konto> klienci = FXCollections.observableArrayList();
klienci.add(new Konto("Jan","Kowalski","0002","1234"));
klienci.add(new Konto("Adam","Nowak","0003","1234"));
klienci.add(new Konto("Piotr","Kwiatkowski","0004","1234"));
return klienci;
}
}
package kontobankowe;
import java.io.IOException;
import java.net.URL;
import java.util.ResourceBundle;
import javafx.application.Application;
import javafx.event.ActionEvent;
import javafx.fxml.FXML;
import javafx.fxml.FXMLLoader;
import javafx.fxml.Initializable;
import javafx.scene.Node;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.scene.control.TableColumn;
import javafx.scene.control.TableView;
import javafx.scene.control.TextField;
import javafx.scene.control.cell.PropertyValueFactory;
import javafx.stage.Stage;
public class KontoBankowe extends Application implements Initializable{
//Logowanie admin
@FXML private Label statusAdmin;
@FXML private TextField txtAdminLogin;
@FXML private TextField txtAdminHasloLogowania;
@FXML private Button btnAdminZaloguj;
// admin controller
@FXML private TableView<Konto> tableView;
@FXML private TableColumn<Konto, String> kolumnaImie;
@FXML private TableColumn<Konto, String> kolumnaNazwisko;
@FXML private TableColumn<Konto, String> kolumnaNumerKonta;
@FXML private TableColumn<Konto, String> kolumnaHaslo;
@FXML private Label zalogowanyAdmin;
@FXML private TextField txtImie;
@FXML private TextField txtNazwisko;
@FXML private TextField txtNrKonta;
@FXML private TextField txtPierwszeHaslo;
@FXML private Button btnDodaj;
@FXML private Button btnUsun;
@FXML private Button btnZatwierdz;
@FXML private Button btnWylogujAdmina;
Bank bank = new Bank();
Administrator admin = new Administrator("Jan","Nowak","0001","1234");
//Logowanie klient
@FXML private Label statusKlient;
@FXML private TextField txtKlientLogin;
@FXML private TextField txtKlientHasloLogowania;
@FXML private Button btnKlientZaloguj;
// klient controller
@FXML private Button btnWylogujKlienta;
Konto konto = new Konto("Krzysztof", "Kowalski", "0001", "1234");
public void zalogujAdministratora(ActionEvent event){
if(admin.zaloguj(bank, txtAdminLogin.getText(), txtAdminHasloLogowania.getText())){
try {
Parent adminWidok = FXMLLoader.load(getClass().getResource("FXMLAdministrator.fxml"));
Scene scene = new Scene(adminWidok);
Stage window = (Stage)((Node)event.getSource()).getScene().getWindow();
window.setScene(scene);
window.show();
//zalogowanyAdmin.setText("Zalogowany: " + " "+ admin.getImie() +" "+ admin.getNazwisko());
} catch (IOException e) {
e.getCause().printStackTrace();
}
}
else{
statusAdmin.setText("Logowanie Administratora nie powiodło się");
}
}
public void zalogujKlienta(ActionEvent event){
if(konto.zaloguj(txtKlientLogin.getText(), txtKlientHasloLogowania.getText())){
try {
Parent adminWidok = FXMLLoader.load(getClass().getResource("FXMLKlient.fxml"));
Scene scene = new Scene(adminWidok);
Stage window = (Stage)((Node)event.getSource()).getScene().getWindow();
window.setScene(scene);
window.show();
} catch (IOException e) {
e.getCause().printStackTrace();
}
}
else{
statusKlient.setText("Logowanie Klienta nie powiodło się");
}
}
public void wyloguj(ActionEvent event) {
try {
Parent menuWidok = FXMLLoader.load(getClass().getResource("FXMLMenu.fxml"));
Scene scene = new Scene(menuWidok);
Stage window = (Stage)((Node)event.getSource()).getScene().getWindow();
window.setScene(scene);
window.show();
} catch (IOException ex) {
ex.printStackTrace();
}
}
@Override
public void initialize(URL url, ResourceBundle rb) {
//set up the columns in the table
kolumnaImie.setCellValueFactory(new PropertyValueFactory<Konto, String>("imie"));
kolumnaNazwisko.setCellValueFactory(new PropertyValueFactory<Konto, String>("nazwisko"));
kolumnaNumerKonta.setCellValueFactory(new PropertyValueFactory<Konto, String>("nrKonta"));
kolumnaHaslo.setCellValueFactory(new PropertyValueFactory<Konto, String>("haslo"));
//load data
tableView.setItems(bank.getKonta());
}
@Override
public void start(Stage stage){
try {
Parent root = FXMLLoader.load(getClass().getResource("FXMLMenu.fxml"));
Scene scene = new Scene(root);
stage.setScene(scene);
stage.show();
} catch (Exception e) {
e.printStackTrace();
}
}
public static void main(String[] args) {
launch(args);
}
}
kod błędu:
Executing C:\Users\fejkl\Desktop\KontoBankowe\dist\run1265183293\KontoBankowe.jar using platform D:\Apps\Java\JDK\jre/bin/java
Exception in thread "JavaFX Application Thread" java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
at javafx.fxml.FXMLLoader$MethodHandler.invoke(FXMLLoader.java:1774)
at javafx.fxml.FXMLLoader$ControllerMethodEventHandler.handle(FXMLLoader.java:1657)
at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:86)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191)
at com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
at com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:49)
at javafx.event.Event.fireEvent(Event.java:198)
at javafx.scene.Node.fireEvent(Node.java:8411)
at javafx.scene.control.Button.fire(Button.java:185)
at com.sun.javafx.scene.control.behavior.ButtonBehavior.mouseReleased(ButtonBehavior.java:182)
at com.sun.javafx.scene.control.skin.BehaviorSkinBase$1.handle(BehaviorSkinBase.java:96)
at com.sun.javafx.scene.control.skin.BehaviorSkinBase$1.handle(BehaviorSkinBase.java:89)
at com.sun.javafx.event.CompositeEventHandler$NormalEventHandlerRecord.handleBubblingEvent(CompositeEventHandler.java:218)
at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:80)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191)
at com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
at com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:54)
at javafx.event.Event.fireEvent(Event.java:198)
at javafx.scene.Scene$MouseHandler.process(Scene.java:3757)
at javafx.scene.Scene$MouseHandler.access$1500(Scene.java:3485)
at javafx.scene.Scene.impl_processMouseEvent(Scene.java:1762)
at javafx.scene.Scene$ScenePeerListener.mouseEvent(Scene.java:2494)
at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:394)
at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:295)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.tk.quantum.GlassViewEventHandler.lambda$handleMouseEvent$353(GlassViewEventHandler.java:432)
at com.sun.javafx.tk.quantum.QuantumToolkit.runWithoutRenderLock(QuantumToolkit.java:389)
at com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(GlassViewEventHandler.java:431)
at com.sun.glass.ui.View.handleMouseEvent(View.java:555)
at com.sun.glass.ui.View.notifyMouse(View.java:937)
at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at com.sun.glass.ui.win.WinApplication.lambda$null$147(WinApplication.java:177)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at sun.reflect.misc.Trampoline.invoke(MethodUtil.java:71)
at sun.reflect.GeneratedMethodAccessor1.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at sun.reflect.misc.MethodUtil.invoke(MethodUtil.java:275)
at javafx.fxml.FXMLLoader$MethodHandler.invoke(FXMLLoader.java:1769)
... 48 more
Caused by: javafx.fxml.LoadException:
file:/C:/Users/fejkl/Desktop/KontoBankowe/dist/run1265183293/KontoBankowe.jar!/kontobankowe/FXMLLogowanieAdministrator.fxml
at javafx.fxml.FXMLLoader.constructLoadException(FXMLLoader.java:2601)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2579)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2441)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3214)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3175)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3148)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3124)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3104)
at javafx.fxml.FXMLLoader.load(FXMLLoader.java:3097)
at kontobankowe.MenuController.pokazLogowanieAdministratora(MenuController.java:30)
... 58 more
Caused by: java.lang.NullPointerException
at kontobankowe.KontoBankowe.initialize(KontoBankowe.java:140)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2548)
... 66 more