如何在 Java 中向 JFrame 添加背景图像
java 8object oriented programmingprogramming更新于 2025/8/19 18:52:17
要向 JFrame 添加背景图像，请使用 Image 类的 getImage() 方法 −
Image img = Toolkit.getDefaultToolkit().getImage("E:\rahul.jpg");
现在，绘制图像 −
public void paintComponent(Graphics g) {
super.paintComponent(g);
g.drawImage(img, 0, 0, null);
}
以下是向 JFrame 添加背景图像的示例 −
示例
import java.awt.Graphics;
import java.awt.Image;
import java.awt.Toolkit;
import java.io.IOException;
import javax.swing.JPanel;
public class SwingDemo extends javax.swing.JFrame {
Image img = Toolkit.getDefaultToolkit().getImage("E:\rahul.jpg");
public SwingDemo() throws IOException {
this.setContentPane(new JPanel() {
@Override
public void paintComponent(Graphics g) {
super.paintComponent(g);
g.drawImage(img, 0, 0, null);
}
});
pack();
setVisible(true);
}
public static void main(String[] args) throws Exception {
new SwingDemo();
}
}
输出
