给jtable设置单选框

很高兴为您解答。给 JTable 设置单选框，可以通过在 JTable 的 DefaultTableModel 中添加一个 Boolean 类型的列，同时在 JTable 中使用 JRadioButton 来作为单选框。具体实现方式可以参考以下代码：

DefaultTableModel model = new DefaultTableModel() {
    @Override
    public Class<?> getColumnClass(int columnIndex) {
        if (columnIndex == 0) {
            return Boolean.class;
        } else {
            return super.getColumnClass(columnIndex);
        }
    }
};
model.addColumn("选择");// 添加Boolean类型的列
model.addColumn("序号");
model.addColumn("姓名");
model.addRow(new Object[]{false, "1", "张三"});// 添加数据
model.addRow(new Object[]{false, "2", "李四"});
model.addRow(new Object[]{false, "3", "王五"});

JTable table = new JTable(model) {
    @Override
    public TableCellRenderer getCellRenderer(int row, int column) {
        if (column == 0) {
            return new RadioButtonRenderer();
        } else {
            return super.getCellRenderer(row, column);
        }
    }

    @Override
    public TableCellEditor getCellEditor(int row, int column) {
        if (column == 0) {
            return new RadioButtonEditor();
        } else {
            return super.getCellEditor(row, column);
        }
    }
};
table.setRowHeight(30);// 设置单元格高度
table.getColumnModel().getColumn(0).setPreferredWidth(50);// 设置选择列的宽度

// 自定义Renderer和Editor，使单元格显示单选框
class RadioButtonRenderer implements TableCellRenderer {
    private final JRadioButton radioButton = new JRadioButton();

    @Override
    public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
        radioButton.setSelected((boolean) value);
        return radioButton;
    }
}

class RadioButtonEditor extends AbstractCellEditor implements TableCellEditor {
    private final JRadioButton radioButton = new JRadioButton();

    @Override
    public Component getTableCellEditorComponent(JTable table, Object value, boolean isSelected, int row, int column) {
        radioButton.setSelected((boolean) value);
        return radioButton;
    }

    @Override
    public Object getCellEditorValue() {
        return radioButton.isSelected();
    }
}

这段代码会在 JTable 中添加一个选择列，同时使用 JRadioButton 作为单选框，实现了 JTable 的单选框效果。希望能对您有所帮助。