NotSerializableException lors de la sérialisation de JFrame. Rendre `JFileChooser` transitoire à la sérialisation

Question

Je voulais sérialiser mon JFrame mais malheureusement je reçois NotSerializableException. Je pensais que les JFileChoosers sont la raison alors j'ai ajouté modificateur transient les: transient JFileChooser fc = new JFileChooser(".");

Et ils sont parce que les enlever supprime le problème, mais je dois utiliser JFileChooser comment rendre vraiment transitoire de sérialisation?

import java.awt.BorderLayout; 
import java.awt.Dimension; 
import java.awt.Font; 
import java.awt.GridLayout; 
import java.awt.event.ActionEvent; 
import java.awt.event.ActionListener; 
import java.io.File; 
import java.io.FileInputStream; 
import java.io.FileNotFoundException; 
import java.io.FileOutputStream; 
import java.io.IOException; 
import java.io.ObjectInputStream; 
import java.io.ObjectOutputStream; 
import java.util.ArrayList; 

import javax.swing.JButton; 
import javax.swing.JFileChooser; 
import javax.swing.JFrame; 
import javax.swing.JList; 
import javax.swing.JMenu; 
import javax.swing.JMenuBar; 
import javax.swing.JMenuItem; 
import javax.swing.JPanel; 
import javax.swing.JScrollPane; 
import javax.swing.JTabbedPane; 
import javax.swing.border.BevelBorder; 
import javax.swing.border.TitledBorder; 


public class GlowneOkno extends JFrame{ 
    private static final long serialVersionUID = 1L; 
    private JPanel panelPrawo , panelDol; 
    private Okienko panelSr ; 
    private final static String[] etykietyFigur = {"Elipsa" , "Kolo" , "Kwadrat" , "Prostokat" , "Trojkat" , "Trojkat Rownoboczny"}; 
    private static String[] etykietyPrzyciskowKontrolnych = {"Play", "Pause", "Stop"}; 
    //private JButton playButton, pauseButton, stopButton, elipsaButton, koloButton, kwadratButton, okragButton, prostokatButton, trojkatButton, trojkatRButton; 
    private JButton[] przyciskiFigur, przyciskiKontrolne; 
    private final static int SIZE = 550;  
    //------- 
    private JTabbedPane jtp; 
    private MyListModel modelListy; 
    private JList jl; 
    private MyListCellRenderer cellRender; 

    public GlowneOkno() { 
     super("Program"); 
     createGUI(); 
    } 

    private void createGUI(){ 
     setSize(SIZE + 120, SIZE + 100); 
    // setPreferredSize(new Dimension(800, SIZE)); 
     createMenus(); 
     modelListy = new MyListModel(new ArrayList<>()); 
     panelSr = new Okienko(modelListy); 
     panelDol = new JPanel(new GridLayout(1,3,50,60)); 
     panelPrawo = new JPanel(); 

     ActionListener zmieniaczFigur = new ActionListener() {  
      @Override 
      public void actionPerformed(ActionEvent e) { 
       JButton jb = (JButton) e.getSource(); 
       System.out.println("lkiojgwkjhugfshbkjuidsafhbkfaqwsuki"); 
       switch(jb.getText()){ 
        case "Elipsa": ((Okienko) panelSr).setWylosowanaFigura(Okienko.ELIPSA); break; 
        case "Kolo": ((Okienko) panelSr).setWylosowanaFigura(Okienko.KOLO); break; 
        case "Kwadrat": ((Okienko) panelSr).setWylosowanaFigura(Okienko.KWADRAT); break; 
        case "Prostokat": ((Okienko) panelSr).setWylosowanaFigura(Okienko.PROSTOKAT); break; 
        case "Trojkat": ((Okienko) panelSr).setWylosowanaFigura(Okienko.TROJKAT); break; 
        case "Trojkat /nRownoboczny": ((Okienko) panelSr).setWylosowanaFigura(Okienko.TROJKAT_ROWNOBOCZNY); break; 
       } 
      } 
     }; 
     ActionListener ppsListener = new ActionListener() { 

      @Override 
      public void actionPerformed(ActionEvent e) { 
       JButton jb = (JButton) e.getSource(); 
       switch(jb.getText()){ 
       case "Play": ((Okienko) panelSr).playThreads(); break; 
       case "Pause":((Okienko) panelSr).pauseThreads(); break; 
       case "Stop": ((Okienko) panelSr).stopThreads(); break; 
       } 
      } 
     }; 

     przyciskiFigur = dodajButtony(panelPrawo, przyciskiFigur, etykietyFigur); 
     panelPrawo.setLayout(new GridLayout(przyciskiFigur.length , 1)); 
     add(panelPrawo, BorderLayout.EAST); 
     jtp = new JTabbedPane(JTabbedPane.BOTTOM); 
     jtp.setPreferredSize(new Dimension(550, 120)); 
     przyciskiKontrolne = dodajButtony(panelDol, przyciskiKontrolne, etykietyPrzyciskowKontrolnych); 
     dodajListenera(przyciskiKontrolne, ppsListener); 

     for(JButton button: przyciskiKontrolne) 
      button.setFont(new Font("", Font.BOLD, 24));   
     System.out.println(przyciskiFigur.length); 
     dodajListenera(przyciskiFigur, zmieniaczFigur); 
     jtp.addTab("Kontrola", panelDol); 
     add(jtp,BorderLayout.SOUTH); 
    //dodawanie drugiej zakladki---> listy 

     jl = new JList(modelListy); 
     cellRender = new MyListCellRenderer(); 
     jl.setCellRenderer(cellRender); 


     JScrollPane jsp = new JScrollPane(); 
     jsp.getViewport().setView(jl); 
     jtp.addTab("Figury", jsp); 

     // 


     BevelBorder b = new BevelBorder(BevelBorder.LOWERED); 
     panelSr.setBorder(new TitledBorder(b, "Latajace figury")); 
     add(panelSr, BorderLayout.CENTER); 
     setVisible(true); 
     setDefaultCloseOperation(EXIT_ON_CLOSE); 
    } 

    private void createMenus() { 
     JMenuBar jmb = new JMenuBar(); 
     JMenu jm = new JMenu("File"); 
     JMenuItem save = new JMenuItem("save"); 
     JMenuItem load = new JMenuItem("load"); 

     save.addActionListener(new ActionListener() { 
      transient JFileChooser fc = new JFileChooser("."); 
      @Override 
      public void actionPerformed(ActionEvent e) { 

       int returnVal = fc.showSaveDialog(GlowneOkno.this);  
        if (returnVal == JFileChooser.APPROVE_OPTION) { 
         File file = fc.getSelectedFile(); 
         save(file); 
        } 
      } 

      private void save(File file) { 
       FileOutputStream fos = null; 
       ObjectOutputStream oos = null; 
       /* 
        * Zapis do strumienia (plikowego, ale może być dowolne) 
        */ 
       try { 
        fos= new FileOutputStream(file); //utworzenie strumienia wyjściowego 
        oos = new ObjectOutputStream(fos); //utworzenie obiektu zapisującego do strumienia 

        oos.writeObject(GlowneOkno.this); //serializacja obiektu 

       } catch (FileNotFoundException e) { 
        e.printStackTrace(); 
       } catch (IOException e) { 
        e.printStackTrace(); 

       } finally { 
        // zamykamy strumienie w finally 
        try { 
        if (oos != null) oos.close(); 
        } catch (IOException e) {} 
        try { 
        if (fos != null) fos.close(); 
        } catch (IOException e) {} 
       } 

      } 
     }); 
     load.addActionListener(new ActionListener() { 
      transient JFileChooser fc = new JFileChooser("."); 
      @Override 
      public void actionPerformed(ActionEvent e) { 

       int returnVal = fc.showOpenDialog(GlowneOkno.this); 
       if (returnVal == JFileChooser.APPROVE_OPTION) { 
         File file = fc.getSelectedFile(); 
         load(file); 
        } 
      } 

      private void load(File file) { 
       FileInputStream fis = null; 
       ObjectInputStream ois = null; 
       try { 
        fis = new FileInputStream(file); //utworzenie strumienia wejściowego 
        ois = new ObjectInputStream(fis); //utworzenie obiektu odczytującego obiekty ze strumienia 
        GlowneOkno o = (GlowneOkno) ois.readObject(); 

      /*  ArrayList<Przesuwacz> wczytanaListaPrzesuwaczy = (ArrayList<Przesuwacz>) ois.readObject(); 
        panelSr.setListaPrzesuwaczy(wczytanaListaPrzesuwaczy); //deserializacja obiektu 
        ArrayList<Wyrysowywalny> w = new ArrayList<Wyrysowywalny>(); 
        for(Przesuwacz p: wczytanaListaPrzesuwaczy){ 
         w.add(p.getF()); 
        } 
        panelSr.l = w; 
        System.out.println(w.size() + " -----------------------------------------");*/ 
       } catch (FileNotFoundException e) { 
        e.printStackTrace(); 
       } catch (IOException e) { 
        e.printStackTrace(); 
       } catch (ClassNotFoundException e) { 
        e.printStackTrace(); 
       } finally { 
        // zasoby zwalniamy w finally 
        try { 
        if (ois != null) ois.close(); 
        } catch (IOException e) {} 
        try { 
        if (fis != null) fis.close(); 
        } catch (IOException e) {} 
       } 

      } 
     }); 

     jm.add(save); jm.add(load); jmb.add(jm); 
     setJMenuBar(jmb); 
    } 

    private JButton[] dodajButtony(JPanel jp , JButton[] bTab , String[] etykiety){ 
     bTab = new JButton[etykiety.length]; 
     for(int i = 0; i < bTab.length; i++){ 
      bTab[i] = new JButton(etykiety[i]); 
      jp.add(bTab[i]); 
     } 
     return bTab; 
    } 

    private void dodajListenera(JButton[] bTab , ActionListener al){ 
     for(JButton jb : bTab) 
      jb.addActionListener(al); 
    } 


    public static void main(String[] args) { 
     new GlowneOkno(); 
    } 

} 

---

ERREURS

java.io.NotSerializableException: javax.swing.plaf.metal.MetalFileChooserUI 
    at java.io.ObjectOutputStream.writeObject0(Unknown Source) 
    at java.io.ObjectOutputStream.defaultWriteFields(Unknown Source) 
    at java.io.ObjectOutputStream.writeSerialData(Unknown Source) 
    at java.io.ObjectOutputStream.writeOrdinaryObject(Unknown Source) 
    at java.io.ObjectOutputStream.writeObject0(Unknown Source) 
    at java.io.ObjectOutputStream.writeObject(Unknown Source) 
    at javax.swing.event.EventListenerList.writeObject(Unknown Source) 
    at sun.reflect.GeneratedMethodAccessor6.invoke(Unknown Source) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) 
    at java.lang.reflect.Method.invoke(Unknown Source) 
    at java.io.ObjectStreamClass.invokeWriteObject(Unknown Source) 
    at java.io.ObjectOutputStream.writeSerialData(Unknown Source) 
    at java.io.ObjectOutputStream.writeOrdinaryObject(Unknown Source) 
    at java.io.ObjectOutputStream.writeObject0(Unknown Source) 
    at java.io.ObjectOutputStream.defaultWriteFields(Unknown Source) 
    at java.io.ObjectOutputStream.defaultWriteObject(Unknown Source) 
    at javax.swing.JComponent.writeObject(Unknown Source) 
    at sun.reflect.GeneratedMethodAccessor10.invoke(Unknown Source) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) 
    at java.lang.reflect.Method.invoke(Unknown Source) 
    at java.io.ObjectStreamClass.invokeWriteObject(Unknown Source) 
    at java.io.ObjectOutputStream.writeSerialData(Unknown Source) 
    at java.io.ObjectOutputStream.writeOrdinaryObject(Unknown Source) 
    at java.io.ObjectOutputStream.writeObject0(Unknown Source) 
    at java.io.ObjectOutputStream.defaultWriteFields(Unknown Source) 
    at java.io.ObjectOutputStream.writeSerialData(Unknown Source) 
    at java.io.ObjectOutputStream.writeOrdinaryObject(Unknown Source) 
    at java.io.ObjectOutputStream.writeObject0(Unknown Source) 
    at java.io.ObjectOutputStream.defaultWriteFields(Unknown Source) 
    at java.io.ObjectOutputStream.defaultWriteObject(Unknown Source) 
    at java.awt.Window.writeObject(Unknown Source) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) 
    at java.lang.reflect.Method.invoke(Unknown Source) 
    at java.io.ObjectStreamClass.invokeWriteObject(Unknown Source) 
    at java.io.ObjectOutputStream.writeSerialData(Unknown Source) 
    at java.io.ObjectOutputStream.writeOrdinaryObject(Unknown Source) 
    at java.io.ObjectOutputStream.writeObject0(Unknown Source) 
    at java.io.ObjectOutputStream.writeObject(Unknown Source) 
    at java.awt.Window.writeObject(Unknown Source) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) 
    at java.lang.reflect.Method.invoke(Unknown Source) 
    at java.io.ObjectStreamClass.invokeWriteObject(Unknown Source) 
    at java.io.ObjectOutputStream.writeSerialData(Unknown Source) 
    at java.io.ObjectOutputStream.writeOrdinaryObject(Unknown Source) 
    at java.io.ObjectOutputStream.writeObject0(Unknown Source) 
    at java.io.ObjectOutputStream.writeObject(Unknown Source) 
    at GlowneOkno$3.save(GlowneOkno.java:152) 
    at GlowneOkno$3.actionPerformed(GlowneOkno.java:138) 
    at javax.swing.AbstractButton.fireActionPerformed(Unknown Source) 
    at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source) 
    at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source) 
    at javax.swing.DefaultButtonModel.setPressed(Unknown Source) 
    at javax.swing.AbstractButton.doClick(Unknown Source) 
    at javax.swing.plaf.basic.BasicMenuItemUI.doClick(Unknown Source) 
    at javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(Unknown Source) 
    at java.awt.Component.processMouseEvent(Unknown Source) 
    at javax.swing.JComponent.processMouseEvent(Unknown Source) 
    at java.awt.Component.processEvent(Unknown Source) 
    at java.awt.Container.processEvent(Unknown Source) 
    at java.awt.Component.dispatchEventImpl(Unknown Source) 
    at java.awt.Container.dispatchEventImpl(Unknown Source) 
    at java.awt.Component.dispatchEvent(Unknown Source) 
    at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source) 
    at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source) 
    at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source) 
    at java.awt.Container.dispatchEventImpl(Unknown Source) 
    at java.awt.Window.dispatchEventImpl(Unknown Source) 
    at java.awt.Component.dispatchEvent(Unknown Source) 
    at java.awt.EventQueue.dispatchEventImpl(Unknown Source) 
    at java.awt.EventQueue.access$000(Unknown Source) 
    at java.awt.EventQueue$3.run(Unknown Source) 
    at java.awt.EventQueue$3.run(Unknown Source) 
    at java.security.AccessController.doPrivileged(Native Method) 
    at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source) 
    at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source) 
    at java.awt.EventQueue$4.run(Unknown Source) 
    at java.awt.EventQueue$4.run(Unknown Source) 
    at java.security.AccessController.doPrivileged(Native Method) 
    at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source) 
    at java.awt.EventQueue.dispatchEvent(Unknown Source) 
    at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source) 
    at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source) 
    at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source) 
    at java.awt.EventDispatchThread.pumpEvents(Unknown Source) 
    at java.awt.EventDispatchThread.pumpEvents(Unknown Source) 
    at java.awt.EventDispatchThread.run(Unknown Source) 

Answer 1

devrait être cette

public class GlowneOkno extends JFrame implements Serializable{ 

essayer.