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データベースへの入力を受け入れるために jtable を使用する必要があるプロジェクトを開発しています。

jtable のセルにイベント リスナーを設定したい。ユーザーがセルの編集を終了したときに、セルの内容を保存してユーザーが次に移動できるようにするために使用するイベントについての提案細胞、

私はこのコードを持っていますが、私が望んでいたように機能していません.私がそれを調べて、私が間違っている場所を教えてください.

DefaultTableModel tablemodel;

/**
 * Creates new form Tabletest
 */
public Tabletest(java.awt.Frame parent, boolean modal) {
    super(parent, modal);
    initComponents();
    SetTable();
}

/**
 * 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() {

    jScrollPane1 = new javax.swing.JScrollPane();
    jTable1 = new javax.swing.JTable();

    setDefaultCloseOperation(javax.swing.WindowConstants.DISPOSE_ON_CLOSE);

    jTable1.setModel(new javax.swing.table.DefaultTableModel(
        new Object [][] {
            {null, null, null, null},
            {null, null, null, null},
            {null, null, null, null},
            {null, null, null, null}
        },
        new String [] {
            "Title 1", "Title 2", "Title 3", "Title 4"
        }
    ));
    jTable1.addMouseListener(new java.awt.event.MouseAdapter() {
        public void mouseClicked(java.awt.event.MouseEvent evt) {
            jTable1MouseClicked(evt);
        }
    });
    jTable1.addKeyListener(new java.awt.event.KeyAdapter() {
        public void keyPressed(java.awt.event.KeyEvent evt) {
            jTable1KeyPressed(evt);
        }
    });
    jScrollPane1.setViewportView(jTable1);

    javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
    getContentPane().setLayout(layout);
    layout.setHorizontalGroup(
        layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addComponent(jScrollPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 400, Short.MAX_VALUE)
    );
    layout.setVerticalGroup(
        layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGroup(layout.createSequentialGroup()
            .addGap(38, 38, 38)
            .addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 190, javax.swing.GroupLayout.PREFERRED_SIZE)
            .addContainerGap(72, Short.MAX_VALUE))
    );

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

private void jTable1KeyPressed(java.awt.event.KeyEvent evt) {
    // TODO add your handling code here:
}

private void jTable1MouseClicked(java.awt.event.MouseEvent evt) {
    jTable1.getColumn(jTable1.getColumnName(jTable1.getSelectedColumn())).setCellEditor(new tablecell2()); // TODO add your handling code here:
}

/**
 * @param args the command line arguments
 */
public static void main(String args[]) {
    /* Set the Nimbus look and feel */
    //<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
    /* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
     * For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html 
     */
    try {
        for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
            if ("Nimbus".equals(info.getName())) {
                javax.swing.UIManager.setLookAndFeel(info.getClassName());
                break;
            }
        }
    } catch (ClassNotFoundException ex) {
        java.util.logging.Logger.getLogger(Tabletest.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
    } catch (InstantiationException ex) {
        java.util.logging.Logger.getLogger(Tabletest.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
    } catch (IllegalAccessException ex) {
        java.util.logging.Logger.getLogger(Tabletest.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
    } catch (javax.swing.UnsupportedLookAndFeelException ex) {
        java.util.logging.Logger.getLogger(Tabletest.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
    }
    //</editor-fold>

    /* Create and display the dialog */
    java.awt.EventQueue.invokeLater(new Runnable() {
        public void run() {
            Tabletest dialog = new Tabletest(new javax.swing.JFrame(), true);
            dialog.addWindowListener(new java.awt.event.WindowAdapter() {
                @Override
                public void windowClosing(java.awt.event.WindowEvent e) {
                    System.exit(0);
                }
            });
            dialog.setVisible(true);
        }
    });
}
// Variables declaration - do not modify
private javax.swing.JScrollPane jScrollPane1;
private javax.swing.JTable jTable1;
// End of variables declaration

void SetTable(){
    try {
        tablemodel= new DefaultTableModel();
        tablemodel.addColumn("field1");
        tablemodel.addColumn("field2");
        tablemodel.addColumn("field3");
        tablemodel.addColumn("field4");

        Object[] a = {"10","20","30","40"};
        Object[] b = {"100","200","300","400"};
        tablemodel.addRow(a);
        tablemodel.addRow(b);
        jTable1.setModel(tablemodel);
    } catch (Exception e) {
    }
}

void saveresult() {
    double tot = Double.parseDouble(jTable1.getValueAt(jTable1.getSelectedRow(), jTable1.getSelectedColumn()).toString());
    JOptionPane.showMessageDialog(rootPane, tot+ " the value will be save into db");

}

class tablecell2 extends JTextField implements TableCellEditor {

    int tablecell2_column;
    Object value;

    @Override
    public Component getTableCellEditorComponent(JTable table, final Object value, boolean isSelected, int row, int column) {
        this.stopCellEditing();
        this.tablecell2_column = column;
        this.value = value;
        //this.setFont(null);
        System.out.println(">>tablecell2>>");
        if (value != null) {
            setText(value.toString());
        }

        this.addFocusListener(new java.awt.event.FocusAdapter() {
            public void focusLost(java.awt.event.FocusEvent evt) {
                jTextField1FocusLost(evt);
            }

            private void jTextField1FocusLost(FocusEvent evt) {
                //setText(value.toString());
                // new setResults().getbyclass(jTable1, ClassCombo.getSelectedItem().toString(), acadYr, term, subjectCombo.getSelectedItem().toString());
                //JOptionPane.showMessageDialog(currentCell, "focus");
            }
        });

        this.setPreferredSize(new java.awt.Dimension(15, 20));
        this.setFont(new java.awt.Font("", 10, 9));
        //this.setFont(new java.awt.Font);
        /* this.addFocusListener(null);addFocusListener(new java.awt.event.FocusAdapter() {
         @Override
         public void focusLost(java.awt.event.FocusEvent evt) {
         jTable1FocusLost(evt);
         }
         });*/
        this.addMouseListener(new java.awt.event.MouseAdapter() {
            public void mouseClicked(java.awt.event.MouseEvent evt) {
                jTextFieldMouseClicked(evt);
            }

            private void jTextFieldMouseClicked(MouseEvent evt) {
                setText("");
            }
        });
        this.addKeyListener(new java.awt.event.KeyAdapter() {
            @Override
            public void keyPressed(java.awt.event.KeyEvent evt) {
                jTextField10KeyPressed(evt);
            }
        });
        return this;
    }

    @Override
    public Object getCellEditorValue() {
        throw new UnsupportedOperationException("Not supported yet.");
    }

    @Override
    public boolean isCellEditable(EventObject anEvent) {
        return true;
    }

    @Override
    public boolean shouldSelectCell(EventObject anEvent) {
        return true;
    }

    @Override
    public boolean stopCellEditing() {
        return true;
    }

    @Override
    public void cancelCellEditing() {
    }

    @Override
    public void addCellEditorListener(CellEditorListener l) {
    }

    @Override
    public void removeCellEditorListener(CellEditorListener l) {
    }

    private void jTable1FocusLost(java.awt.event.FocusEvent evt) {
        JOptionPane.showMessageDialog(this, "666");

    }

    private void jTextField10KeyPressed(java.awt.event.KeyEvent evt) {
        int keycode = evt.getKeyCode();
        StringBuffer sb = new StringBuffer();
        sb.append("" + evt.getKeyChar());
        //jTextField10.setText(sb.toString());
        System.out.println("key code " + keycode);
        if (keycode == 10) {

            setText(this.getText());
            if (tablecell2_column == 3) {
                //Scores.CA_SCORE = Double.parseDouble(this.getText());
            } else if (tablecell2_column == 4) {
                //Scores.EXAM_SCORE = Double.parseDouble(this.getText());
            }
            //jTextField10.setText("");
            sb.delete(0, sb.length());
            //JOptionPane.showMessageDialog(currentCell, Scores.CA_SCORE);
            saveresult();
            this.nextFocus();
            //new setResults().getbyclass(jTable1, ClassCombo.getSelectedItem().toString(), acadYr, term, subjectCombo.getSelectedItem().toString());

        }        // TODO add your handling code here:
    }
}

}

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3 に答える 3

2

setValueAt編集プロセスが自動的に完了すると、メソッドを介してテーブル モデルが呼び出されます。テーブル モデルは、このメソッドをオーバーライドし、編集プロセスの結果を適切に保存する必要があります。

詳細についてはTableModel#setValueAtテーブルの使用方法を参照してください

于 2013-07-19T01:56:01.240 に答える
1

TableModelListenerJDK API から、を に追加できますTableModel

または、 Table Cell Listenerを検討することもできます。

于 2013-07-19T01:53:02.607 に答える