获得焦点

表头：
(getBillCardPanel().getHeadItem("head1").getComponent()).setFocusable(true); 
or
(getBillCardPanel().getHeadItem("head1").getComponent()).requestFocus();

表体：
getBillCardPanel().getBillTable().requestFocus();
getBillCardPanel().getBillTable().setRowSelectionInterval(1, 1);
getBillCardPanel().getBillTable().setColumnSelectionInterval(2, 2);
或
   javax.swing.SwingUtilities.invokeLater(new Runnable(){

                                                        public void run() {
                                                                // TODO Auto-generated method stub

                                                                getBillTable("table").editCellAt(mRow, mCol);
                                                                getBodyItem(mKey).getComponent().requestFocus();

                                                        }
                                                        
                                                });