Atualizar JTable

Olá pessoal!

Estou fazendo um CRUD usando Swing e estou tendo problemas ao atualizar os dados da tabela.

Encontrei alguns exemplos na internet utilizando vetores e com vetores funciona perfeitamente. Porém quando utilizo banco de dados a tabela não é atualizada quando uma nova marca é inserida.
Seguem os códigos abaixo:

Primeiramente a janela, onde está a tabela. Essa janela foi construída com o editor visual do netbeans e além da tabela possui os botões de inserir, remover e atualizar.

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package br.com.view;

import br.com.controller.MarcaController;
import br.com.model.negocio.Marca;
import java.util.ArrayList;


/**
 *
 * @author MEUS DOCUMENTOS
 */
public class MarcaGui extends javax.swing.JFrame {

    private MarcaTableModel model;

    /**
     * Creates new form MarcaGui
     */
    public MarcaGui() {
        initComponents();
        ArrayList<Marca> lista = new ArrayList<Marca>();
        MarcaController a = new MarcaController();
        lista = a.listarMarca();
        
        //cria o modelo de Produto      
        model = new MarcaTableModel(lista);

        //atribui o modelo à tabela
        jTable1.setModel(model);
    }

    /**
     * This method is called from within the constructor to initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is always
     * regenerated by the Form Editor.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">
    private void initComponents() {

        jPanel1 = new javax.swing.JPanel();
        jLabel1 = new javax.swing.JLabel();
        txPesquisa = new javax.swing.JTextField();
        botaoPesquisa = new javax.swing.JButton();
        jScrollPane2 = new javax.swing.JScrollPane();
        jTable1 = new javax.swing.JTable();
        btInserir = new javax.swing.JButton();
        btEditar = new javax.swing.JButton();
        btRemover = new javax.swing.JButton();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

        jPanel1.setBackground(new java.awt.Color(255, 255, 255));

        jLabel1.setText("Marcas");

        botaoPesquisa.setIcon(new javax.swing.ImageIcon(getClass().getResource("/br/com/view/imagens/pequisar.png"))); // NOI18N
        botaoPesquisa.setText("Pesquisar");

        jTable1.setModel(new javax.swing.table.DefaultTableModel(
            new Object [][] {
                {null, null},
                {null, null},
                {null, null},
                {null, null}
            },
            new String [] {
                "Id", "Marca"
            }
        ));
        jScrollPane2.setViewportView(jTable1);

        btInserir.setText("Inserir");
        btInserir.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                btInserirActionPerformed(evt);
            }
        });

        btEditar.setText("Editar");

        btRemover.setText("Remover");

        javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
        jPanel1.setLayout(jPanel1Layout);
        jPanel1Layout.setHorizontalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel1Layout.createSequentialGroup()
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(jPanel1Layout.createSequentialGroup()
                        .addContainerGap()
                        .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                            .addGroup(jPanel1Layout.createSequentialGroup()
                                .addComponent(txPesquisa, javax.swing.GroupLayout.PREFERRED_SIZE, 240, javax.swing.GroupLayout.PREFERRED_SIZE)
                                .addGap(18, 18, 18)
                                .addComponent(botaoPesquisa))
                            .addGroup(jPanel1Layout.createSequentialGroup()
                                .addGap(98, 98, 98)
                                .addComponent(jLabel1))
                            .addComponent(jScrollPane2, javax.swing.GroupLayout.PREFERRED_SIZE, 375, javax.swing.GroupLayout.PREFERRED_SIZE)))
                    .addGroup(jPanel1Layout.createSequentialGroup()
                        .addGap(59, 59, 59)
                        .addComponent(btInserir)
                        .addGap(18, 18, 18)
                        .addComponent(btEditar)
                        .addGap(18, 18, 18)
                        .addComponent(btRemover)))
                .addContainerGap(15, Short.MAX_VALUE))
        );
        jPanel1Layout.setVerticalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel1Layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(jLabel1)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(txPesquisa, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(botaoPesquisa))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                .addComponent(jScrollPane2, javax.swing.GroupLayout.PREFERRED_SIZE, 142, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addGap(18, 18, 18)
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(btInserir)
                    .addComponent(btEditar)
                    .addComponent(btRemover))
                .addContainerGap(43, Short.MAX_VALUE))
        );

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
        );

        pack();
    }// </editor-fold>

    private void btInserirActionPerformed(java.awt.event.ActionEvent evt) {                                          
        InserirMarcaGui im = new InserirMarcaGui();
        im.setVisible(true);
    }                                         

   
    // Variables declaration - do not modify
    private javax.swing.JButton botaoPesquisa;
    private javax.swing.JButton btEditar;
    private javax.swing.JButton btInserir;
    private javax.swing.JButton btRemover;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JPanel jPanel1;
    private javax.swing.JScrollPane jScrollPane2;
    private javax.swing.JTable jTable1;
    private javax.swing.JTextField txPesquisa;
    // End of variables declaration
}

Abaixo segue o código da janela InserirMarca, também construída a partir do Netbeans. Gostaria que após a inserção de uma nova marca, essa janela fosse fechada e a tabela fosse atualizada. Já tentei construir um método atualizaTabela na marcaGui, porém não obtive sucesso.

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package br.com.view;

import br.com.controller.MarcaController;
import br.com.model.negocio.Marca;

/**
 *
 * @author MEUS DOCUMENTOS
 */
public class InserirMarcaGui extends javax.swing.JFrame {
    MarcaTableModel mtb = new MarcaTableModel();
    /**
     * Creates new form InserirMarcaGui
     */
    public InserirMarcaGui() {
        initComponents();
    }

    /**
     * This method is called from within the constructor to initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is always
     * regenerated by the Form Editor.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">
    private void initComponents() {

        jPanel1 = new javax.swing.JPanel();
        jLabel1 = new javax.swing.JLabel();
        jLabel2 = new javax.swing.JLabel();
        txNome = new javax.swing.JTextField();
        botaoLimpar = new javax.swing.JButton();
        botaoSalvar = new javax.swing.JButton();

        setDefaultCloseOperation(javax.swing.WindowConstants.DISPOSE_ON_CLOSE);
        setTitle("Inserir Marca");

        jPanel1.setBackground(new java.awt.Color(255, 255, 255));

        jLabel1.setText("Inserir Marca");

        jLabel2.setText("Nome.:");

        botaoLimpar.setIcon(new javax.swing.ImageIcon(getClass().getResource("/br/com/view/imagens/limpar.png"))); // NOI18N
        botaoLimpar.setText("Limpar");

        botaoSalvar.setIcon(new javax.swing.ImageIcon(getClass().getResource("/br/com/view/imagens/salvar.png"))); // NOI18N
        botaoSalvar.setText("Salvar");
        botaoSalvar.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                botaoSalvarActionPerformed(evt);
            }
        });

        javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
        jPanel1.setLayout(jPanel1Layout);
        jPanel1Layout.setHorizontalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel1Layout.createSequentialGroup()
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(jPanel1Layout.createSequentialGroup()
                        .addGap(57, 57, 57)
                        .addComponent(jLabel1)
                        .addGap(0, 0, Short.MAX_VALUE))
                    .addGroup(jPanel1Layout.createSequentialGroup()
                        .addContainerGap()
                        .addComponent(jLabel2)
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                        .addComponent(txNome))
                    .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel1Layout.createSequentialGroup()
                        .addGap(0, 182, Short.MAX_VALUE)
                        .addComponent(botaoLimpar)
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                        .addComponent(botaoSalvar)))
                .addContainerGap())
        );
        jPanel1Layout.setVerticalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel1Layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(jLabel1)
                .addGap(18, 18, 18)
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jLabel2)
                    .addComponent(txNome, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addGap(18, 18, 18)
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(botaoLimpar)
                    .addComponent(botaoSalvar))
                .addContainerGap(27, Short.MAX_VALUE))
        );

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
        );

        pack();
    }// </editor-fold>

    private void botaoSalvarActionPerformed(java.awt.event.ActionEvent evt) {                                            
        Marca m = new Marca();
        if (txNome.getText().length()>0){
        m.setNome(txNome.getText());
            MarcaController mc = new MarcaController();
            mc.cadastrar(m);
            mtb.inserir(m);
         
            
            
        }
    }                                           

   
    // Variables declaration - do not modify
    private javax.swing.JButton botaoLimpar;
    private javax.swing.JButton botaoSalvar;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JLabel jLabel2;
    private javax.swing.JPanel jPanel1;
    private javax.swing.JTextField txNome;
    // End of variables declaration
}

E por fim a classe MarcaTableModel que extende de AbstractTableModel.

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package br.com.view;

import br.com.controller.MarcaController;
import br.com.model.negocio.Marca;

/**
 *
 * @author MEUS DOCUMENTOS
 */
public class InserirMarcaGui extends javax.swing.JFrame {
    MarcaTableModel mtb = new MarcaTableModel();
    /**
     * Creates new form InserirMarcaGui
     */
    public InserirMarcaGui() {
        initComponents();
    }

    /**
     * This method is called from within the constructor to initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is always
     * regenerated by the Form Editor.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">
    private void initComponents() {

        jPanel1 = new javax.swing.JPanel();
        jLabel1 = new javax.swing.JLabel();
        jLabel2 = new javax.swing.JLabel();
        txNome = new javax.swing.JTextField();
        botaoLimpar = new javax.swing.JButton();
        botaoSalvar = new javax.swing.JButton();

        setDefaultCloseOperation(javax.swing.WindowConstants.DISPOSE_ON_CLOSE);
        setTitle("Inserir Marca");

        jPanel1.setBackground(new java.awt.Color(255, 255, 255));

        jLabel1.setText("Inserir Marca");

        jLabel2.setText("Nome.:");

        botaoLimpar.setIcon(new javax.swing.ImageIcon(getClass().getResource("/br/com/view/imagens/limpar.png"))); // NOI18N
        botaoLimpar.setText("Limpar");

        botaoSalvar.setIcon(new javax.swing.ImageIcon(getClass().getResource("/br/com/view/imagens/salvar.png"))); // NOI18N
        botaoSalvar.setText("Salvar");
        botaoSalvar.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                botaoSalvarActionPerformed(evt);
            }
        });

        javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
        jPanel1.setLayout(jPanel1Layout);
        jPanel1Layout.setHorizontalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel1Layout.createSequentialGroup()
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(jPanel1Layout.createSequentialGroup()
                        .addGap(57, 57, 57)
                        .addComponent(jLabel1)
                        .addGap(0, 0, Short.MAX_VALUE))
                    .addGroup(jPanel1Layout.createSequentialGroup()
                        .addContainerGap()
                        .addComponent(jLabel2)
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                        .addComponent(txNome))
                    .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel1Layout.createSequentialGroup()
                        .addGap(0, 182, Short.MAX_VALUE)
                        .addComponent(botaoLimpar)
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                        .addComponent(botaoSalvar)))
                .addContainerGap())
        );
        jPanel1Layout.setVerticalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel1Layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(jLabel1)
                .addGap(18, 18, 18)
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jLabel2)
                    .addComponent(txNome, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addGap(18, 18, 18)
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(botaoLimpar)
                    .addComponent(botaoSalvar))
                .addContainerGap(27, Short.MAX_VALUE))
        );

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
        );

        pack();
    }// </editor-fold>

    private void botaoSalvarActionPerformed(java.awt.event.ActionEvent evt) {                                            
        Marca m = new Marca();
        if (txNome.getText().length()>0){
        m.setNome(txNome.getText());
            MarcaController mc = new MarcaController();
            mc.cadastrar(m);
            mtb.inserir(m);
         
            
            
        }
    }                                           

   
    // Variables declaration - do not modify
    private javax.swing.JButton botaoLimpar;
    private javax.swing.JButton botaoSalvar;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JLabel jLabel2;
    private javax.swing.JPanel jPanel1;
    private javax.swing.JTextField txNome;
    // End of variables declaration
}

O que eu acho muito estranho é que usando vetor a tabela atualiza perfeitamente. O problema ocorre somente quando utilizo banco de dados.

2 Respostas

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