Java 无法从mouseListener对e.getComponent使用setIcon方法

我想在单击标签后更改其图标图像

我在标签上添加一个鼠标侦听器，并用red_seat.jpg初始化

String seatImageUrl = "red_seat.jpg";
tempL = new JLabel(new ImageIcon(seatImageUrl));
tempL.addMouseListener(new seatMouseEvent());

在我的mouseListener类clicked方法中，我有

public class seatMouseEvent implements MouseListener{
    public void mouseClicked(MouseEvent e){
        String seatImageUrl= "newImage.jpg";
        try{    
            e.getComponent().setIcon(new ImageIcon(seatImageUrl)); //setIcon it's undefined
        }   
        catch(Exception ex){
                     JOptionPane.showMessageDialog(null, "Error: " +ex.getMessage() );
        }
   }
}

我得用石膏

((JLabel)e.getComponent().)setIcon(new ImageIcon(seatImageUrl));