class MyMouseListener implements MouseListener {
  public void mouseClicked(MouseEvent arg0) {}
  public void mouseEntered(MouseEvent arg0) {}
  public void mouseExited(MouseEvent arg0) {}
  public void mousePressed(MouseEvent arg0) {}
  public void mouseReleased(MouseEvent m) {
    JTableHeader tableHeader = (JTableHeader)m.getComponent();
    JTable table = tableHeader.getTable();
    if (!table.getBounds().contains(m.getPoint())) {
      table.removeColumn(table.getColumnModel().getColumn(
          tableHeader.columnAtPoint(m.getPoint())));
    }
  }
}

这是一种非常基本的方法,没有异常或处理异常.但至少它能起作用.