java - Jtable中单元格的行为(在单元格内部单击鼠标右键)

我有一个JTable，我想通过在单元格中单击鼠标右键来打开PopupMenu。我通过制作自己的AbstractCellEditor进行了尝试，但是没有用（当我启动程序时，当第一个方法初始化CellEditor时（这是该方法做的最后一件事），CellEditor是但是在下一个方法的开头，CellEditor已经消失了。有人能帮帮我吗？我试图查找错误已有数周之久。

这是CellEditor的代码：

public class CellEditor extends AbstractCellEditor implements TableCellEditor {

    JTextField component;
    JPopupMenu popmen;

    CellEditor(){
        component = new JTextField();
        popmen = new JPopupMenu();

        createPopmen(component);
        component.addMouseListener(new MouseAdapter(){
            public void mouseReleased(MouseEvent e) {
                if ( e.isPopupTrigger() )
                      popmen.show( e.getComponent(), e.getX(), e.getY() );
               }
        });
    }

    public Component getTableCellEditorComponent1(JTable table, Object value,
            boolean isSelected, int rowIndex, int vColIndex) {
        if (isSelected) {
        }

        component.setText((String)value);
        return component;
    }

    public Object getCellEditorValue() {
        return component.getText();
    }

    @Override
    public Component getTableCellEditorComponent(JTable arg0, Object  arg1, boolean arg2,int arg3, int arg4) {
        return null;
    }


public void createPopmen(final JTextField text){

    // creating Popmen

}

}

这是代码的一部分，我的表正在发生什么：

Vector<Vector> nu = new Vector<Vector>();
Vector<String> columnNames = new Vector<String>();
TableModel model;


model = new DefaultTableModel(nu, columnNames){
          public Class getColumnClass() {
              Class returnValue;
              if ((3 >= 0) && (3 < getColumnCount())) {
                System.out.println(getValueAt(0, 3));
                returnValue = getValueAt(0, 3).getClass();
              } else {
                returnValue = Object.class;
              }
              return returnValue;
            }
                 public boolean isCellEditable(int row, int col) {
                     if(col == 0){
                         return false;
                     }
                     else{
                         return true;
                     }

                 }
          };

    table = new JTable(model);
    final TableRowSorter<TableModel> sorter = new TableRowSorter<TableModel>(model);
    table.setRowSorter(sorter);
    table.putClientProperty("terminateEditOnFocusLost", Boolean.TRUE);
    table.getSelectionModel().addListSelectionListener(new ListSelectionListener(){
          public void valueChanged(ListSelectionEvent e){
                int a = table.getSelectedRow();
                if (!changes.contains(a) && a!=-1 && table.getSelectedColumn() != 0){
                    changes.add(a);
                    saved = false;
                }
          }
    });



    // SearchingBar
    textfield.addKeyListener( new KeyListener(){

        @Override
        public void keyPressed(KeyEvent arg0) {

        }
        @Override
        public void keyReleased(KeyEvent arg0) {

            String searchedText =textfield.getText();
            if (searchedText.length() == 0) {
                sorter.setRowFilter(null);
              } else {
                sorter.setRowFilter(RowFilter.regexFilter(searchedText));
              }
        }
        @Override
        public void keyTyped(KeyEvent arg0) {
        }
    });

    ((DefaultTableModel) model).removeRow(0);
    table.setModel(model);
    table.setCellEditor(new CellEditor());

最佳答案

无需创建自定义编辑器。您应该能够执行以下操作：

JTable table = new JTable(...);
DefaultCellEditor dce = table.getDefaultEditor(Object.class);
Component editor = dce.getComponent();
editor.addMouseListener(...);

另外，请阅读Swing教程中关于Sorting and Filtering的部分，以获取有关如何使用过滤的有效示例。您不应该使用KeyListener。

如果您需要更多帮助，请发布您的SSCCE来演示问题。