编写代码 ImageIconDemo测试类
package com.xiang.lesson04;
import javax.swing.*;
import java.awt.*;
import java.net.URL;
public class ImageIconDemo extends JFrame {
public ImageIconDemo() {
JLabel label = new JLabel("ImageIconDemo");
// 获取图片地址
// 这个类获取 当前类路径下的东西
URL url = ImageIconDemo.class.getResource("wallpaper.jpg");
ImageIcon icon = new ImageIcon(url);
label.setIcon(icon);
label.setHorizontalAlignment(SwingConstants.CENTER);
Container container = getContentPane();
container.add(label);
setVisible(true);
setBounds(50,50,1000,800);
setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
}
public static void main(String[] args) {
new ImageIconDemo();
}
}
运行结果
![](https://img2020.cnblogs.com/blog/1868218/202108/1868218-20210807114631210-596241121.png)
图片路径
![](https://img2020.cnblogs.com/blog/1868218/202108/1868218-20210807114701862-1046916551.png)