Ajuda java

tenho que passar um objeto de um jdalog pra outro porem nao estou conseguindo passar

tenho um jframe consultar e ali tem alterar, quando clico emalterar teria que abrir outro jframe ja com o objeto inteiro fiz o seguinte

     private Cliente getSelecionadoCliente(){
    if(tabela.getSelectedRow() == -1) {
        JOptionPane.showMessageDialog(this, "Selecione uma linha da tabela.",
                "ERRO", JOptionPane.ERROR_MESSAGE);
        return null;
    }
    DefaultTableModel modelo = (DefaultTableModel) tabela.getModel();
    Integer id = Integer.parseInt(modelo.getValueAt(tabela.getSelectedRow(), 0).toString());
     System.out.println(id);
    
    ClienteDao cliente = new ClienteDao();

    return cliente.Consultar(id);

isso ai pega o objeto selecionado na tabela

funcao consular

      public Cliente Consultar(Integer id_cliente) {
        String sql = "SELECT * FROM cliente WHERE id_cliente = ?";
        try {
            PreparedStatement stmt = getConexao().prepareStatement(sql);
            stmt.setInt(1, id_cliente);
            ResultSet rs = stmt.executeQuery();
            List<Cliente> lista = getCliente(rs);
            if(lista.size() > 0)
                return lista.get(0);
        } catch (SQLException sQLException) {
            System.out.println("Erro ao consultar Cliente");
        }
        return null;        
    }  

e o getcliente

 public List<Cliente> getCliente(ResultSet rs) {
        if(rs == null)
            return null;
        
        List<Cliente> lista = new ArrayList<Cliente>();
        try {
            while (rs.next()) {
                Cliente cli = new Cliente();    
         
                cli.setId_cliente(rs.getInt("id_cliente"));
                cli.setNome(rs.getString("nome"));
                cli.setEndereco(rs.getString("endereco"));
             
                
                cli.setData(new Date(rs.getDate("data").getTime()));
                lista.add(cli);
            }
            
            
            
        } catch (SQLException ex) {
            Logger.getLogger(ClienteDao.class.getName()).log(Level.SEVERE, null, ex);
        }
        return lista;
    }


e passo assim para o outro jframe

Cliente cli = null;
       
            cli = getSelecionadoCliente();
        
    if(cli == null)
        return;
        
          new alterar(null, true, cli).setVisible(true);

porem nao aparece no outro jframe o objeto CLI sae em branco

o construtor do alterar
public alterar(java.awt.Frame parent, boolean modal, Cliente cli) {
        this(parent, modal);
        this.cli = cli;
     mostrarDados();
        
    }
   public void mostrarDados() {
        if(cli == null)
            return;
               
        jtf_nome.setText(cli.getNome());  
}

teria q setar o campo com o nome vindo do banco

Presente

Cara vo te passa as classes que eu costumo usar mais por questão de organização…

Esse é um editor defaul que eu costumo usar, dai eu somente passo um painel que dentro dele ja é feito alguns tratamentos a mais…

public class DefaultDialog extends JDialog
{
    /**
     * createDialog
     *
     * @param owner Component
     * @param title String
     * @param panel DialogPanel
     * @return DefaultDialog
     */
    public static DefaultDialog createDialog( Component owner, String title, DialogPanel panel )
    {
        DefaultDialog dialog = null;

        if ( owner != null )
        {
            Window parent = SwingUtilities.windowForComponent( owner );

            if ( parent != null )
            {
                if ( parent instanceof Frame )
                {
                    dialog = new DefaultDialog( (Frame) parent );
                }

                else if ( parent instanceof Dialog )
                {
                    dialog = new DefaultDialog( (Dialog) parent );
                }
            }
        }

        if ( dialog == null )
        {
            dialog = new DefaultDialog();
        }

        dialog.setTitle( title );
        dialog.setDialogPanel( panel );
        
        return dialog;
    }

    private JButton acceptButton = new JButton( "Accept" );
    private JButton cancelButton = new JButton( "Cancel" );

    private JPanel buttonPane = new JPanel();

    private DialogPanel dialogPanel = null;

    private boolean accepted = false;

    public DefaultDialog()
    {
        initComponents();
    }

    public DefaultDialog( Frame parent )
    {
        super( parent );

        initComponents();
    }

    public DefaultDialog( Dialog parent )
    {
        super( parent );

        initComponents();
    }

    /**
     * getDialogPanel
     *
     * @return DialogPanel
     */
    public DialogPanel getDialogPanel()
    {
        return dialogPanel;
    }

    /**
     * setDialogPanel
     *
     * @param value DialogPanel
     */
    public void setDialogPanel( DialogPanel value )
    {
        if ( dialogPanel != null )
        {
            remove( dialogPanel );
        }

        dialogPanel = value;

        if ( dialogPanel != null )
        {
            add( dialogPanel, new GridBagConstraints( 0, 0, 1, 1, 1.0, 1.0,
                    GridBagConstraints.CENTER, GridBagConstraints.BOTH,
                    new Insets( 10, 10, 10, 10 ), 0, 0 ) );

            dialogPanel.setDialog( this );
        }

        pack();

        Dimension screenSize = getToolkit().getScreenSize();
        Dimension dialogSize = getSize();

        setLocation( ( screenSize.width - dialogSize.width ) / 2,
                     ( screenSize.height - dialogSize.height ) / 2 );
    }

    /**
     * @return boolean
     */
    public boolean isAccepted()
    {
        return accepted;
    }

    /**
     * acceptDialog
     *
     */
    public void acceptDialog()
    {
        if ( dialogPanel.validateInput() )
        {
            accepted = true;

            setVisible( false );
            dispose();
        }
    }

    /**
     * cancelDialog
     *
     */
    public void cancelDialog()
    {
        accepted = false;

        setVisible( false );
        dispose();
    }

    /**
     * initComponents
     *
     */
    private void initComponents()
    {
        buttonPane.add( acceptButton );
        buttonPane.add( cancelButton );
        
        setModal( true );
        setLayout( new GridBagLayout() );

        JLabel ruler = new JLabel();

        ruler.setBorder( BorderFactory.createMatteBorder( 0, 0, 2, 0, Color.gray ) );

        add( ruler, new GridBagConstraints( 0, 1, 1, 1, 1.0, 0.0,
                                   GridBagConstraints.EAST, GridBagConstraints.HORIZONTAL,
                                   new Insets( 5, 10, 0, 10 ), 0, 0 ) );

        add( buttonPane, new GridBagConstraints( 0, 2, 1, 1, 1.0, 0.0,
                                   GridBagConstraints.EAST, GridBagConstraints.NONE,
                                   new Insets( 5, 5, 5, 5 ), 0, 0 ) );

        acceptButton.addActionListener( new ActionListener()
        {
            public void actionPerformed( ActionEvent e )
            {
                acceptDialog();
            }
        } );

        cancelButton.addActionListener( new ActionListener()
        {
            public void actionPerformed( ActionEvent e )
            {
                cancelDialog();
            }
        } );

        addWindowFocusListener(new WindowAdapter()
        {
            @Override
            public void windowGainedFocus(WindowEvent e)
            {
                JComponent initialFocus = dialogPanel.getInitialFocus();
                
                if ( initialFocus != null )
                {
                    initialFocus.requestFocusInWindow();
                }
            }
        });
    }
}

dai este seria um exemplo de um editor :

public class TestEditor
    extends DialogPanel
{
    /**
     * edit
     *
     * @param owner Component
     * @param Test Test
     * @return boolean
     */
    public static boolean edit( Component owner, Test test )
    {
        TestEditor editor = new TestEditor();

        editor.setTest( test );

        DefaultDialog dialog = DefaultDialog.createDialog( owner,
                                                           "Tests Editor",
                                                           editor );

        dialog.setVisible( true );

        boolean accepted = dialog.isAccepted();

        if ( accepted )
        {
            editor.getTest( test );
        }

        return accepted;
    }

    /**
     * TestEditor
     *
     */
    public TestEditor()
    {
        initComponents();
    }

    /**
     * setTest
     *
     * @param t Test
     */
    public void setTest( Test s )
    {
        nameField.setText( s.getName() );
        infoTextArea.setText( s.getInfo() );
    }

    /**
     * getTest
     *
     * @param t Test
     */
    public void getTest( Test s )
    {
        s.setName( nameField.getText().trim() );
        s.setInfo( infoTextArea.getText().trim() );
    }

    /**
     * validateInput
     *
     * @return boolean
     */
    public boolean validateInput()
    {
        String error = null;

        if ( nameField.getText().trim().length() == 0 )
        {
            error = "A Test title must be provided!";
        }

        if ( error != null )
        {
            JOptionPane.showMessageDialog( this, error );
        }

        return error == null;
    }

    /**
     * initComponents
     *
     */
    private void initComponents()
    {
        infoTextArea.setLineWrap( true );
        infoTextArea.setWrapStyleWord( true );

        add( titleLabel, new GridBagConstraints( 0, 0, 1, 1, 0.0, 0.0,
                            GridBagConstraints.EAST, GridBagConstraints.NONE,
                            new Insets( 5, 5, 0, 5 ), 0, 0 ) );

        add( nameField, new GridBagConstraints( 1, 0, 1, 1, 1.0, 0.0,
                            GridBagConstraints.WEST, GridBagConstraints.HORIZONTAL,
                            new Insets( 5, 0, 0, 5 ), 0, 0 ) );

        add( infoLabel, new GridBagConstraints( 0, 1, 1, 1, 0.0, 0.0,
                            GridBagConstraints.NORTHEAST, GridBagConstraints.NONE,
                            new Insets( 5, 5, 0, 5 ), 0, 0 ) );

        add( infoScroller, new GridBagConstraints( 1, 1, 1, 1, 1.0, 1.0,
                            GridBagConstraints.WEST, GridBagConstraints.BOTH,
                            new Insets( 5, 0, 5, 5 ), 0, 0 ) );
    }

    private JLabel titleLabel = new JLabel( "Title:" );
    private JLabel infoLabel = new JLabel( "Info:" );

    private JTextField nameField = new JTextField();
    private JTextArea infoTextArea = new JTextArea();

    private JScrollPane infoScroller = new JScrollPane( infoTextArea );
}

dai da outra classe, digamos que o frame que voce usa, eu usaria o método edit desta ultima classe dai passaria o objeto test…

dai caso não fosse cancelada a operação, meu objeto estaria alterado…

4 Respostas

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