动态向JTable添加列

动态向JTable添加列

我认为您需要将列添加到表的数据模型及其列模型中。当数据模型更改时，将更新列模型，因此更改数据模型应该足够了。这是一个例子：

public class TableColumnAdd {    private static DefaultTableModel tableModel;    private static int columnNumber = 1;    public static void main(String[] args) throws InterruptedException, InvocationTargetException {        SwingUtilities.invokeAndWait(new Runnable() { @Override public void run() {     tableModel = new DefaultTableModel(new Object[] { "Initial Column" }, 5);     JTable table = new JTable(tableModel);     Jframe frame = new Jframe("Table Column Add");     frame.setDefaultCloseOperation(Jframe.EXIT_ON_CLOSE);     frame.setBounds(100, 100, 600, 300);     frame.add(new JScrollPane(table));     frame.setVisible(true); }        });        for (;;) { SwingUtilities.invokeLater(new Runnable() {     @Override     public void run() {         tableModel.addColumn("Column #" + columnNumber++);     } }); Thread.sleep(2000);        }    }}