Question

我在最后一列的JTable中有一个JButton，当客户端点击它时，它将显示一个JFrame。但我不知道如何获取行，以便我可以获取行中的对象并将其发送到JFrame构造函数？

这是我的表：

table = new JTable(model);
    JTableHeader tableHeader = table.getTableHeader();
    tableHeaderRenderer = table.getTableHeader().getDefaultRenderer();
    tableHeader.setDefaultRenderer(new TableCellRenderer() {
        private JLabel label;
        @Override
        public Component getTableCellRendererComponent(JTable table, Object value,
                boolean isSelected, boolean hasFocus, int row, int column) {
            if (selectedColumn == value) {
                label = (JLabel) tableHeaderRenderer.getTableCellRendererComponent(table,
                        value, true, true, row, column);
                label.setComponentOrientation(ComponentOrientation.RIGHT_TO_LEFT);
                label.setBorder(BorderFactory.createCompoundBorder(label.getBorder(), 
                          BorderFactory.createEmptyBorder(0, 5, 0, 0)));
                label.setHorizontalAlignment(SwingConstants.LEFT);
            } else {
                label = (JLabel) tableHeaderRenderer.getTableCellRendererComponent(table,
                        value, false, false, row, column);
                label.setComponentOrientation(ComponentOrientation.RIGHT_TO_LEFT);
                label.setBorder(BorderFactory.createCompoundBorder(label.getBorder(), 
                          BorderFactory.createEmptyBorder(0, 5, 0, 0)));
                label.setHorizontalAlignment(SwingConstants.CENTER);
            }
            return label;
        }
    });
    table.getColumnModel().getColumn(3).setCellRenderer(new TableCellRenderer() {
        public Component getTableCellRendererComponent(JTable table, Object value,
                boolean isSelected, boolean hasFocus, int row, int column) {
            JPanel buttonPanel = new JPanel(new BorderLayout());
            buttonPanel.setBackground(Color.white);
            JButton button = Shorter.button("Details", true);
            buttonPanel.add(button);
            return buttonPanel;
        }
    });
    table.getColumnModel().getColumn(3).setCellEditor(new TableCellEditor() {
        public boolean stopCellEditing() {return false;}
        public boolean shouldSelectCell(EventObject arg0) {return false;}
        public void removeCellEditorListener(CellEditorListener arg0) {}
        public boolean isCellEditable(EventObject arg0) {return true;}
        public Object getCellEditorValue() {return null;}
        public void cancelCellEditing() {}
        public void addCellEditorListener(CellEditorListener arg0) {}
        public Component getTableCellEditorComponent(JTable arg0, Object arg1,
                boolean arg2, int arg3, int arg4) {
            JFrame frame = new JFrame();
            frame.setVisible(true);
            return null;}
    });

当帧加载时我想知道选择哪一行添加到帧构造函数...

Answer 1

但是我不知道怎么能得到这一行所以我可以得到该对象行并将其发送到JFrame构造函数？

有三种选择

JButton inside a JTable in the last column

事件必须从JTables view重新调整正确的坐标，在JTables view
的情况下，您必须将视图转换为模型
- 排序
- 过滤
- 列已重新排序
- 列被隐藏（从JTables视图中删除）
（和/或）将ListSelectionListener添加到JTable
Mouse Events也可以返回，请阅读官方Oracle tutorial How to use Tables - Specifying Tool Tips for Cells了解工作代码示例

Answer 2

我前段时间写了一个简单的ButtonColumn，我认为它可以帮助你一点点，但正如@mKorbel所提到的，你必须解决排序，过滤等问题。

public class ButtonColumn extends AbstractCellEditor 
    implements TableCellRenderer, TableCellEditor{

    private JButton button;
    private String value;

    public ButtonColumn(){
        button = new JButton();
        button.addActionListener(new ActionListener() {

            @Override
            public void actionPerformed(ActionEvent arg0) {
                System.out.println("pressed"+value);
            }
        });
    }

    @Override
    public Component getTableCellRendererComponent(JTable arg0, Object arg1,
            boolean arg2, boolean arg3, int arg4, int arg5) {
        button.setText(arg4+"");
        value = " "+arg4;
        return button;
    }


    @Override
    public Object getCellEditorValue() {
        return null;
    }

    @Override
    public Component getTableCellEditorComponent(JTable arg0, Object arg1,
            boolean arg2, int arg3, int arg4) {
        button.setText(arg3+"");
        value = " "+arg3;
        return button;
    }
}

以下一种方式将其设置为您的列：

table.getColumnModel().getColumn(YOUR_COLUMN_NUMBER).setCellEditor(new ButtonColumn());
table.getColumnModel().getColumn(YOUR_COLUMN_NUMBER).setCellRenderer(new ButtonColumn());

Answer 3

请参阅Table Button Column以获取为您提供该行的解决方案。您需要做的就是为其提供Action。

JTable中的Clickable JButton，想知道他们点击的行

3 个答案: