java - 如何在 jtable 的单元格内添加按钮并赋予它 Action

Question

我知道之前已经回答过这个问题，但考虑到我还是个新手，我无法想出一种方法来执行操作并阻止单元格编辑，我已经尝试了几种方法，但是当我点击它，它编辑单元格而不是按下按钮，我知道为了避免单元格编辑我应该创建一个抽象表并覆盖此方法:

public boolean isCellEditable(int row, int col) {
        //Note that the data/cell address is constant,
        //no matter where the cell appears onscreen.
        if (col < 3) {
            return false;
        } else {
            return true;
        }
    }

但是我使用默认的 JTable，所以这是我用于面板和单元格渲染器的代码:

class PlusMinusCellRenderer extends JPanel implements TableCellRenderer {

    public Component getTableCellRendererComponent(
                        final JTable table, Object value,
                        boolean isSelected, boolean hasFocus,
                        int row, int column) {


            if(column < 3)
            {
             JLabel campo =   new JLabel(value.toString());


            this.add(campo);

            }
            if(column > 2)
            {

                 //this is a button
                 this.add(botaoteste);





            materialtable.revalidate();
            materialtable.repaint();


            }
            return this;

    }

这是我用来从 sql 检索数据到 Jtable 的代码(我自定义了 DefaultJTable 代码)

String[] columnNames={"teste","abc","def"};                 
     Object[][] data = new Object[1][4];
            if(createConnection())
            {
                try {
                    Statement statemt = conLogin.createStatement();
                    ResultSet rs = statemt.executeQuery("SELECT * FROM Materiais");
                    //ResultSet rs = statemt.executeQuery("SELECT * FROM Materiais");
                    rsmtdata = rs.getMetaData();

                    //int columns = rsmtdata.getColumnCount();
                     columnNames = new String[]{rsmtdata.getColumnName(1),rsmtdata.getColumnName(2),rsmtdata.getColumnName(3),"Deletar"};
                     if(rs.next())
                     {
                        data[0][0] = rs.getString(1);
                        data[0][1] = rs.getString(2);
                        data[0][2] = rs.getString(3);
                        data[0][3] = new Boolean(false);
                     }
                     while (rs.next())
                     {

                        Object[][] temp = new Object[data.length+1][4];
                        for(int i=0;i < data.length;i++)
                        {
                            for(int j = 0;j < 4;j++)
                            {
                                temp[i][j] = data[i][j];
                            }

                        }
                        temp[data.length][0] = rs.getString(1);
                        temp[data.length][1] = rs.getString(2);
                        temp[data.length][2] = rs.getString(3);
                        temp[data.length][3] = new Boolean(false);
                        data = temp;



                     }
materialtable = new javax.swing.JTable(data, columnNames);
materialtable = new javax.swing.JTable(data, columnNames){ 
            public TableCellRenderer getCellRenderer( int row, int column ) {
                return new PlusMinusCellRenderer();
            }
         };

materialtable.setRowHeight( 32 );

                } catch (SQLException ex) {
                    Logger.getLogger(ProfessorForm.class.getName()).log(Level.SEVERE, null, ex);
                }

                 }

//Create the scroll pane and add the table to it.
materialtable.setBackground(new java.awt.Color(153, 255, 51));

materialtable.setSelectionBackground(new java.awt.Color(255, 255, 51));

materialtable.setSelectionForeground(new java.awt.Color(255, 102, 0));



jScrollPane3.setViewportView(materialtable);

因此要根据此线程在表 i 内呈现按钮: Adding Buttons inside cell of JTable along with data?

我的问题很直接，我怎样才能禁用行编辑(就像 isCellEditable() 方法的用法一样)并对按钮进行操作？非常感谢这里的任何帮助，请考虑我还是新手，所以需要详细信息或 sample !亲切的问候，罗慕洛·罗梅罗

Answer 1

您需要渲染器和以及编辑器，如example所示.请参阅如何使用表:编辑器和呈现器 details .切线地，您应该覆盖 TableModel 中的方法 isCellEditable() 而不是扩展 JTable。