我使用以下程序使用 java 类创建 JTable。如果我从选项窗格中获取 warnIcon、infoIcon 的图像，它会正确显示。但是，如果我从我的系统中添加图像，它不会显示在表格中。显示一个空白区域而不是我的图像。如何从该表中的文件（例如 A.jpg）中绘制图像？
package pointer;
import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.EventQueue;
import javax.swing.*;
import javax.swing.plaf.OptionPaneUI;
import javax.swing.table.*;
import sun.swing.ImageIconUIResource;
public class TableIcon1 extends JFrame {
private JTable table;
private int pHeight = 60;
public TableIcon1() {
ImageIcon testIcon = new ImageIcon("A.jpg");
// ImageIcon errorIcon = (ImageIcon) UIManager.getIcon("OptionPane.errorIcon");
ImageIcon infoIcon = (ImageIcon) UIManager.getIcon("OptionPane.informationIcon");
ImageIcon warnIcon = (ImageIcon) UIManager.getIcon("OptionPane.warningIcon");
String[] columnNames = {"Picture", "Description"};
Object[][] data = {{testIcon , "About"}, {infoIcon, "Add"}, {warnIcon, "Copy"},};
DefaultTableModel model = new DefaultTableModel(data, columnNames);
table = new JTable(model) {
@Override
public Class getColumnClass(int column) {
return getValueAt(2, column).getClass();
}
};
table.setRowHeight(pHeight);
table.setPreferredScrollableViewportSize(table.getPreferredSize());
JScrollPane scrollPane = new JScrollPane(table);
add(scrollPane, BorderLayout.CENTER);
}
public static void main(String[] args) {
TableIcon1 frame = new TableIcon1();
frame.setDefaultCloseOperation(EXIT_ON_CLOSE);
frame.setLocation(150, 150);
frame.pack();
frame.setVisible(true);
}
}