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我試圖在沒有左鍵單擊單元格的情況下編輯JTable中的JTextField。似乎沒有左鍵單擊單元格，焦點不會獲得，並且JTextField中無法顯示光標。右鍵單擊單元格應該使JTextField可編輯，並且遊標應該可見並閃爍以準備輸入JTextField。使光標在JTable中的JTextField中不顯示左鍵點擊
我發現了許多有類似問題的人的例子，但他們只是不同而已，我無法將任何解決方案應用到我的代碼中（可能缺乏經驗和大腦能力？）。
下面的代碼是我目前無法訪問的真實代碼的髒副本。如果我的如何在JTable中顯示JTextField的實現不正確，請告訴我。
任何幫助或建議，將不勝感激。謝謝
import java.awt.Color;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.util.LinkedList;
import java.util.List;
import javax.swing.AbstractCellEditor;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextField;
import javax.swing.table.AbstractTableModel;
import javax.swing.table.TableCellEditor;
import javax.swing.table.TableCellRenderer;
public class EditableJTextFieldInJTable implements MouseListener{
protected List<JTextField> textFields;
protected JTable table;
public EditableJTextFieldInJTable(){
textFields = new LinkedList<JTextField>();
JTextField tf1 = new JTextField("number 1");
tf1.setBackground(Color.yellow);
tf1.setEditable(false);
textFields.add(tf1);
JTextField tf2 = new JTextField("number 2");
tf2.setEditable(false);
tf2.setBackground(Color.green);
textFields.add(tf2);
TableModel tableModel = new TableModel();
table = new JTable(tableModel);
table.addMouseListener(this);
table.setDefaultRenderer(Object.class, new CellRenderer());
table.setDefaultEditor(Object.class, new CellEditor());
table.setTableHeader(null);
JFrame frame = new JFrame("Table Cell Edit Test");
frame.setPreferredSize(new Dimension(800, 480));
frame.getContentPane().add(new JScrollPane(table));
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.pack();
frame.setVisible(true);
}
private class TableModel extends AbstractTableModel{
@Override
public int getColumnCount(){
return 1;
}
@Override
public int getRowCount(){
return textFields.size();
}
@Override
public Object getValueAt(int row, int col){
return textFields.get(row);
}
@Override
public boolean isCellEditable(int row, int col){
return textFields.get(row).isEditable();
}
}
public class CellRenderer implements TableCellRenderer{
public Component getTableCellRendererComponent(JTable table, Object value,
boolean isSelected, boolean hasFocus, int row, int col){
return textFields.get(row);
}
}
public class CellEditor extends AbstractCellEditor implements TableCellEditor{
public Component getTableCellEditorComponent(JTable table, Object value,
boolean isSelected, int row, int col){
JTextField textField = textFields.get(row);
return textField;
}
@Override
public Object getCellEditorValue(){
return null;
}
}
@Override
public void mouseClicked(MouseEvent arg0){
if(arg0.getSource().equals(table)){
int row = table.rowAtPoint(table.getMousePosition());
System.out.println("row: " + row + " clicked.");
JTextField textField = textFields.get(row);
if(arg0.getButton() == MouseEvent.BUTTON3 && textField != null){
textField.setEditable(true);
System.out.println("row: " + row + " set editable. Caret should now be visible in cell.");
}
}
}
@Override
public void mouseEntered(MouseEvent arg0) {
// Empty method.
}
@Override
public void mouseExited(MouseEvent arg0) {
// Empty method.
}
@Override
public void mousePressed(MouseEvent arg0) {
// Empty method.
}
@Override
public void mouseReleased(MouseEvent arg0) {
// Empty method.
}
public static void main(String[] args){
new EditableJTextFieldInJTable();
}
}