java jtable添加jcheckbox

要在Java JTable中添加JCheckBox，需要创建一个自定义的TableCellEditor和TableCellRenderer。下面是一个简单的例子：

import java.awt.Component;
import javax.swing.AbstractCellEditor;
import javax.swing.JCheckBox;
import javax.swing.JTable;
import javax.swing.table.TableCellEditor;
import javax.swing.table.TableCellRenderer;

public class CheckBoxCellEditorRenderer extends AbstractCellEditor implements TableCellEditor, TableCellRenderer {

    private static final long serialVersionUID = 1L;
    private JCheckBox checkBox;

    public CheckBoxCellEditorRenderer() {
        checkBox = new JCheckBox();
        checkBox.setHorizontalAlignment(JCheckBox.CENTER);
    }

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

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

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

}

然后，在创建JTable时，将该自定义的TableCellEditor和TableCellRenderer设置到JTable中的指定列即可，例如：

JTable table = new JTable();
table.getColumnModel().getColumn(0).setCellEditor(new CheckBoxCellEditorRenderer());
table.getColumnModel().getColumn(0).setCellRenderer(new CheckBoxCellEditorRenderer());

这样，第一列就会显示JCheckBox了。