jTable一列是按钮，如何使点击按钮后按钮上的文字改变？

Question

单元格的render和editor如下，想知道点击按钮以后，也就是editor后怎么通知render。
class ButtonTableEditor extends DefaultCellEditor {
    public ButtonTableEditor(JCheckBox checkBox) {
        super(checkBox);
    }
    public ButtonTableEditor(JComboBox comboBox) {
        super(comboBox);
    }
    public ButtonTableEditor(JTextField textField) {
        super(textField);
    }
    public Component getTableCellEditorComponent(JTable table, Object value,
            boolean isSelected, int row, int column) {
        if (row<0||column!=0)
            return super.getTableCellEditorComponent(table, value, isSelected,  row, column);
        else {
            JButton label = new JButton("No");
            label.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
            label.addActionListener(new ActionListener(){
                public void actionPerformed(ActionEvent e) {
//                     JOptionPane.showMessageDialog(null, "test");
                    new SendFinished();
                }
            });
            label.setPreferredSize(new Dimension(10,20));
            return label;
        }
    }
}class ButtonTableRender extends DefaultTableCellRenderer {

    public Component getTableCellRendererComponent(JTable table, Object value,
            boolean isSelected, boolean hasFocus, int row, int column) {     
        if (row<0||column!=0)
            return super.getTableCellRendererComponent(table, value, isSelected, hasFocus, row, column);
        else {
         JButton label = new JButton("Yes");
            label.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
            label.setPreferredSize(new Dimension(10,20));
            return label;
        }        
    }
}编辑前button上是yes，点击后变成no，但是焦距离开单元格，又重新熏染回yes了。我试过外部定义个String，然后点击按钮后修改String值，在render里button读取String值，但是这样会使所有其他的jbutton都改变值了。怎样才能做到像jtable里内嵌new Boolean()，勾选一个改变一个。

Answer 1

JToggleButton b1 = new JToggleButton("North");b.addActionListener(new ActionListener(){
  public void actionPerformed(ActionEvent e){
    b1.setText("South");
  }
});这样写的话应该不会改动的了

Answer 2

editor编辑后会设置table相应单元的值，之后通知render重绘。并不是table直接将值传递给render，它们都是与table打交道的。而你想要在table中放一个JButton，对于Render来说，你构造一个匿名内部类即可，因为你只需要重写getTableCellRendererComponent方法。而对于Editor，则没那么简单了，因为你需要将JButton这个元素储存在Editor中，下面的示例，其实是将DefaultCellEditor稍微改动以后使用的。import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.text.*;
import javax.swing.table.*;
import java.util.*;
/**
 * 2011-6-26 2:04:24
 * @author Administrator
 */
public class JTable_CellRender_Button {
    JFrame frame;
    Container contentPane;
    JScrollPane jsp;
    JTable table;
    public JTable_CellRender_Button(){
        frame=new JFrame("表格组件测试");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        contentPane=frame.getContentPane();
        contentPane.setLayout(new BorderLayout());
        String name[]={"姓名","语文","数学","合格"};
        Object data[][]={
            {"王鹏",91,100,"是"},
            {"李兵",99,89,"否"},
            {"肖龙",100,100,"是"}
        };
        DefaultTableModel dtm=new DefaultTableModel(data,name);
        dtm.setColumnCount(5);
        dtm.setRowCount(5);
        table=new JTable(dtm);
        //设置表格属性
        table.setRowHeight(50);
//        table.setRowHeight(4, 4*table.getRowHeight());
        table.setCellSelectionEnabled(true);
        table.setPreferredScrollableViewportSize(new Dimension(400,400));
        table.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
        //设置列属性
        TableColumnModel tcm=table.getColumnModel();
        tcm.setColumnMargin(10);
        JButton bun=new JButton("是");
        bun.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                JButton bun=(JButton)e.getSource();
                String str=bun.getText();
                if(str.equals("是")){
                    bun.setText("否");
                }else{
                    bun.setText("是");
                }
            }
        });
        tcm.getColumn(3).setCellEditor(new MyDefaultCellEditor(bun));
        DefaultTableCellRenderer dtcr=new DefaultTableCellRenderer(){
            public Component getTableCellRendererComponent(JTable table, Object value,
                    boolean isSelected, boolean hasFocus, int row, int column) {
                Component c=table.getCellEditor(row, column).getTableCellEditorComponent(table, null, isSelected, row, column);
                if(c instanceof JButton){
                    JButton cBun=(JButton)c;
                    Object text=table.getModel().getValueAt(row, column);
                    String str=(text==null)?"否":text.toString();
                    JButton bun=new JButton(str);
                    bun.setPreferredSize(cBun.getPreferredSize());
                    bun.setForeground(cBun.getForeground());
                    bun.setBackground(cBun.getBackground());
                    bun.setFont(cBun.getFont());
                    return bun;
                }
                return super.getTableCellRendererComponent(table, value, isSelected, hasFocus, row, column);
            }
        };
        for(int i=0;i<tcm.getColumnCount();i++){
            TableColumn tc=tcm.getColumn(i);
            tc.setPreferredWidth(100);
            tc.setCellRenderer(dtcr);
//            tc.setMinWidth(50);
        }
        jsp=new JScrollPane(table);
        contentPane.add(jsp,BorderLayout.CENTER);
        frame.pack();
        frame.setLocationRelativeTo(null);
        frame.setVisible(true);
    }
    public static void main(String args[]){
        new JTable_CellRender_Button();
    }
    class MyDefaultCellEditor extends AbstractCellEditor implements TableCellEditor {
        protected JComponent editorComponent;
        protected EditorDelegate delegate;
        protected int clickCountToStart = 1;
        public MyDefaultCellEditor(JButton button) {
            editorComponent = button;
            editorComponent.setRequestFocusEnabled(false);
            delegate = new EditorDelegate() {
                public void setValue(Object value) {
                    if(value==null){
                        ((JButton)editorComponent).setText("");
                    }
                    else{
                        String text=value.toString();
                        ((JButton)editorComponent).setText(text);
                    }
                }
                public Object getCellEditorValue() {
                    return ((JButton)editorComponent).getText();
                }
            };
        }
        public Component getComponent() {
            return editorComponent;
        }
        public void setClickCountToStart(int count) {
            clickCountToStart = count;
        }
        public int getClickCountToStart() {
            return clickCountToStart;
        }
        public Object getCellEditorValue() {
            return delegate.getCellEditorValue();
        }
        public boolean isCellEditable(EventObject anEvent) {
            return delegate.isCellEditable(anEvent);
        }
        public boolean shouldSelectCell(EventObject anEvent) {
            return delegate.shouldSelectCell(anEvent);
        }
        public boolean stopCellEditing() {
            return delegate.stopCellEditing();
        }
        public void cancelCellEditing() {
            delegate.cancelCellEditing();
        }
        public Component getTableCellEditorComponent(JTable table, Object value,
                                                     boolean isSelected,
                                                     int row, int column) {
            if(value==null){
                return editorComponent;
            }
            delegate.setValue(value);
            return editorComponent;
        }
        protected class EditorDelegate{
            protected Object value;
            public Object getCellEditorValue() {
                return value;
            }
            public void setValue(Object value) {
                this.value = value;
            }
            public boolean isCellEditable(EventObject anEvent) {
                if (anEvent instanceof MouseEvent) {
                    return ((MouseEvent)anEvent).getClickCount() >= clickCountToStart;
                }
                return true;
            }
            public boolean shouldSelectCell(EventObject anEvent) {
                return true;
            }
            public boolean startCellEditing(EventObject anEvent) {
                return true;
            }
            public boolean stopCellEditing() {
                fireEditingStopped();
                return true;
            }
           public void cancelCellEditing() {
               fireEditingCanceled();
           }
        }
    }
}

Answer 3

给jTable设置监听器，里面执行jTable.setText（“显示的内容”）；就行了