Question

我有两个JTable组件（主表（tableA）和详细信息表（tableB），我需要使用向上/向下箭头键在主表中移动并获取详细数据表。

我正在使用的代码如下：

private void jTable1KeyPressed(java.awt.event.KeyEvent evt) {
    if (evt.getKeyCode() == KeyEvent.VK_UP ||evt.getKeyCode() == KeyEvent.VK_DOWN) {
        MoveMasterdetail();
    }
}   

private static final String UP = "UP";
private static final String DOWN = "DOWN";    
public void MoveMasterdetail() {
      int condition = jTable1.WHEN_IN_FOCUSED_WINDOW;
      InputMap inputMap = jTable1.getInputMap(condition);
      ActionMap actionMap = jTable1.getActionMap();

      inputMap.put(KeyStroke.getKeyStroke(KeyEvent.VK_UP, 0), UP);
      actionMap.put(UP, new AbstractAction() {
         public void actionPerformed(ActionEvent arg0) {
             fetchDetail(jTable1.getValueAt(jTable1.getSelectedRow(), 0).toString().trim());
         }
      });

      inputMap.put(KeyStroke.getKeyStroke(KeyEvent.VK_DOWN, 0), DOWN);
      actionMap.put(DOWN, new AbstractAction() {
         public void actionPerformed(ActionEvent arg0) {
             fetchDetail(jTable1.getValueAt(jTable1.getSelectedRow(), 0).toString().trim());

         }
      });

   }

    public void fetchDetail(String autonationalno) {
    try {
        Connection dbConnection = null;
        PreparedStatement preparedStatementSelect = null;
        ResultSet rs = null;
        dbConnection = getDBConnection();
        if (dbConnection != null) {
            int i = 0;
            //inner join or outer join
            String sql =
            "select * from tableB";

            preparedStatementSelect = dbConnection.prepareStatement(sql);
            rs = preparedStatementSelect.executeQuery();
            jTable2.setModel(DbUtils.resultSetToTableModel(rs));

    } catch (Exception e) {
        JOptionPane.showMessageDialog(null, e);
    }
}

请为此提供解决方案。

Answer 1

我需要按上下方向键...

如果用户想要表最后一行的详细信息怎么办？

他们不必为了查看最后一行的详细信息而滚动整个表，尤其是当您对详细数据进行数据库查询时。用户应该能够使用鼠标或键盘来选择他们想要详细信息的行。

这就是<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> <div id = "textDiv"></div> <div id = "newPlayer">blah blah"</div>是更好的解决方案的原因。阅读有关How to Write a ListSelectionListener的Swing教程中的部分，以获取入门的实用示例。

我有两个JTable，我需要使用向上/向下箭头键在主JTable中移动并获取详细的JTable数据

1 个答案: