java - JFrame 在收到事件后不绘制

Question

我的代码如下，我正在尝试接收 m_rows，它是一个数组。看起来它仍然是空的，我的框架仍然是空白的。我可以看到类(class)已经收到了该事件。我认为我的类(class)表工作正常。您是否发现下面的代码在从监听器接收 m_rows 并将其传递给 TableModel(m_rows) 之间有任何明显错误？

谢谢

class Frame extends JFrame implements FlowListener {

    private List<Candle> m_rows = new ArrayList<Candle>();

    public Frame() {

        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setTitle("Ma premiere fenetre");
        setBounds(50, 100, 1000, 800);

        Container conteneur = new JPanel();
        TableModel tableModel = new TableModel(m_rows);
        JTable table = new JTable(tableModel);

        JPanel tablePanel = new JPanel();

        tablePanel.add(table);

        conteneur.setLayout(new GridLayout(2, 1));
        conteneur.add(tablePanel);

        this.add(conteneur);
        this.setVisible(true);

    }

    @Override
    public void updateOnFlow(List<Candle> newFlow) {
        m_rows = newFlow;
        this.repaint();

    }

}

Answer 1

我认为问题在于将某些内容分配给m_row对TableModel没有影响。试试这个:

class Frame extends JFrame implements FlowListener {
    private JTable table;
    ...

    public Frame() {
        ...
        TableModel tableModel = new TableModel(m_rows);  // Did you mean DefaultTableModel?
        table = new JTable(tableModel);
        ...
    }

    @Override
    public void updateOnFlow(List<Candle> newFlow) {
        m_rows = newFlow;
        TableModel tableModel = new TableModel(m_rows);
        table.setModel(tableModel);
        this.repaint();
    }
}