java - PanelImagen [，0,0,0x0，invalid，layout = java.awt.BorderLayout，alignmentX = 0.0，alignmentY = 0.0，border =，flags = 9，maximumSize =，minimumSize =，preferredSize =]

我有一个问题，已经在eclipse java neon中编程，并且我正在对表进行操作，并且实际上是JTable的组件。现在，我需要向表中的组件添加图像，并创建一个名为PanelImagen的JPanel，它会指导我添加带有鲁特标记的图像，等等。当我将程序运行到表中时，它说：

interfaz.PanelImagen[,0,0,0x0,invalid,layout=java.awt.BorderLayout,alignmentX=0.0,alignmentY=0.0,border=,flags=9,maximumSize=,minimumSize=,preferredSize=]

我不知道这是什么我来自哥伦比亚，对不起我的英语。这是我初始化表的代码：

matriz = new JTable(Circuito.TAMANO_PANEL,Circuito.TAMANO_PANEL);
luces = new PanelImagen[Circuito.TAMANO_PANEL][Circuito.TAMANO_PANEL];

for (int i = 0; i < luces.length; i++) {
    for (int j = 0; j < luces[0].length; j++) {
        luces[i][j] = new PanelImagen("data/imagenes/white.gif");
    }
}

最佳答案

如果要将图像添加到表中，则需要：


将Icon添加到TableModel
覆盖getColumnClass(...)的TableModel方法以告知表正在显示图标，以便表可以使用适当的渲染器


例如：

import java.awt.*;
import javax.swing.*;
import javax.swing.table.*;

public class TableIcon extends JPanel
{
    public TableIcon()
    {
        Icon aboutIcon = new ImageIcon("about16.gif");
        Icon addIcon = new ImageIcon("add16.gif");
        Icon copyIcon = new ImageIcon("copy16.gif");

        String[] columnNames = {"Picture", "Description"};
        Object[][] data =
        {
            {aboutIcon, "About"},
            {addIcon, "Add"},
            {copyIcon, "Copy"},
        };

        DefaultTableModel model = new DefaultTableModel(data, columnNames)
        {
            //  Returning the Class of each column will allow different
            //  renderers to be used based on Class
            public Class getColumnClass(int column)
            {
                return getValueAt(0, column).getClass();
            }
        };
        JTable table = new JTable( model );
        table.setPreferredScrollableViewportSize(table.getPreferredSize());

        JScrollPane scrollPane = new JScrollPane( table );
        add( scrollPane );
    }

    private static void createAndShowGUI()
    {
        JFrame frame = new JFrame("Table Icon");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.add(new TableIcon());
        frame.setLocationByPlatform( true );
        frame.pack();
        frame.setVisible( true );
    }

    public static void main(String[] args)
    {
        EventQueue.invokeLater(new Runnable()
        {
            public void run()
            {
                createAndShowGUI();
            }
        });
    }

}