java - 如何在 swing java jframe 中制作 15000 个 jbutton 的数组，并使用按钮对每一行设置操作？

Question

我正在使用 jframes jtable 和分页等在 java swing 中开发一个应用程序，我的数据库中有 15000 条记录，现在我想在 jtable 最后一列的每一行添加打印按钮，这样我就可以使用按钮列设置该行的操作。请帮助我如何制作 15000 个 jbutton 数组并将其添加到 swingajawa jframe 中的 jtable 列，以便我可以通过单击该按钮添加每行的操作？

我使用按钮渲染器和按钮编辑器类尝试了此代码

class ButtonRenderer extends JButton implements TableCellRenderer
{

    public ButtonRenderer() {
        // set button properties
        setOpaque(true);
    }


    @Override
    public Component getTableCellRendererComponent(JTable table, Object obj, 
            boolean selected, boolean focused, int row, int col) {

//        setText((obj==null) ? "":obj.toString());
        if(selected)
        {
            setForeground(table.getSelectionForeground());
            setBackground(table.getSelectionBackground());
        }
        else
        {
             setForeground(table.getForeground());
             setBackground(UIManager.getColor("Button.background"));
        }
        setText((obj==null) ? "" :obj.toString());

        return this;
    }

}

class ButtonEditor extends DefaultCellEditor
{
    protected JButton button;
    private String label;
    private boolean isPushed;

    public ButtonEditor(JTextField txt) {
        super(txt);
        button = new JButton();
        button.setOpaque(true);

        button.addActionListener(new ActionListener() {

            @Override
            public void actionPerformed(ActionEvent e) {
                fireEditingStopped();
             //   throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
            }
        });
    }
    // override a couple of methods

    @Override
    public Component getTableCellEditorComponent(JTable table, Object obj,
            boolean selected, int row, int col) {
        // set text to button, set clicked to true, then return the btn object
        if (selected) 
        {
            button.setForeground(table.getSelectionForeground());
            button.setBackground(table.getSelectionBackground());
        } 
        else 
        {
            button.setForeground(table.getForeground());
            button.setBackground(table.getBackground());
        }   
        label=(obj==null) ? "" :obj.toString();
        button.setText(label);
        isPushed = true;
        return button;
    }
    // if button cell value changes, if clicked that is

    @Override
    public Object getCellEditorValue() {
            DisplayRecords dis = new DisplayRecords();        
        if(isPushed)

        {
            String query = "Select * from Voters";
            int row = table.getSelectedRow();
            String table_click = (table.getModel().getValueAt(row, 0).toString());
            String query = "Select * from Voters where ID='"+table_click+"' ";
            Connection connection = getConnection();
            Statement st;

            try 
            {
                st = connection.createStatement();
                ResultSet rs = st.executeQuery(query);
                while (rs.next())
            {
               String r1 = rs.getString(1);
               dis.id.setText(r1);
               dis.id.setEditable(false);
               String r2 = rs.getString(2);
               dis.t2.setText(r2);
               dis.t2.setEditable(false);
               String r3 = rs.getString(3);
               dis.t3.setText(r3);
               dis.t3.setEditable(false);
               String r4 = rs.getString(4);
               dis.t4.setText(r4);
               dis.t4.setEditable(false);
               String r5 = rs.getString(5);
               dis.t5.setText(r5);
               dis.t5.setEditable(false);
               String r6 = rs.getString(6);
               dis.t6.setText(r6);
               dis.t6.setEditable(false);
               String r7 = rs.getString(7);
               dis.t7.setText(r7);
               dis.t7.setEditable(false);
               String r8 = rs.getString(8);
               dis.t8.setText(r8);
               dis.t8.setEditable(false);
               String r9 = rs.getString(9);
               dis.t9.setText(r9);
               dis.t9.setEditable(false);
               String r10 = rs.getString(10);
               dis.t10.setText(r10);
               dis.t10.setEditable(false);
               String r11 = rs.getString(11);
               dis.t11.setText(r11);
               dis.t11.setEditable(false);
               String r12 = rs.getString(12);
               dis.t12.setText(r12);
               dis.t12.setEditable(false);
               String r13 = rs.getString(13);
               dis.t13.setText(r13);
               dis.t13.setEditable(false);
               String r14 = rs.getString(14);
               dis.t14.setText(r14);
               dis.t14.setEditable(false);
               String r15 = rs.getString(15);
               dis.t15.setText(r15);
               dis.t15.setEditable(false);
               String r16 = rs.getString(16);
               dis.t16.setText(r16);
               dis.t16.setEditable(false);
               String r17 = rs.getString(17);
               dis.t17.setText(r17);
               dis.t17.setEditable(false);
               String r18 = rs.getString(18);
               dis.t18.setText(r18);
               dis.t18.setEditable(false);
               String r19 = rs.getString(19);
               dis.t19.setText(r19);
               dis.t19.setEditable(false);
               String r20 = rs.getString(20);
               dis.t20.setText(r20);
               dis.t20.setEditable(false);
            }
            } 
            catch (SQLException ex) 
            {
                System.out.println("Print Button Click exception");
            }
            dis.setVisible(true);
            dis.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
//            JOptionPane.showMessageDialog(button, label+"Clicked");
        }
        // set it to false now that its clicked
        isPushed = false;
        return new String(label); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public boolean stopCellEditing() {
        //set clicked to false
        isPushed = false;
        return super.stopCellEditing(); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    protected void fireEditingStopped() {

        super.fireEditingStopped(); //To change body of generated methods, choose Tools | Templates.
    }
}

但我无法针对每一行设置按钮操作

Answer 1

but now i want to add print button to print records of that row...

那么BOND给出的建议有什么问题呢？

但是，如果您确实想要在表格的每一行上都有一个单独的按钮，您可以使用 Table Button Column 中的渲染器/编辑器。它允许您在列中呈现按钮并将操作与该按钮关联。