覆盖stopCellEditing（）并在其中实现条件。
class PasswordEditor extends DefaultCellEditor { TextBox m_passWord = new TextBox(); public PasswordEditor() { super(new TextBox()); } @Override public boolean stopCellEditing() { if(getCellEditorValue().toString().length() < 8) { JOptionPane.showMessageDialog(UsmUserView.this.m_Parent, "Password Must Be 8 Bytes Long !! Please Check"); return false; } fireEditingStopped(); return true; } @Override public Object getCellEditorValue() { return this.m_passWord.getText(); } @Override public Component getTableCellEditorComponent(JTable table, Object value, boolean isSelected, int row, int column) { Object fieldValue = value; if(null == fieldValue) fieldValue = Constants.EMPTY_STRING; this.m_passWord.setEditable(true); this.m_passWord.setText(fieldValue.toString()); return this.m_passWord; }}
