使用paintComponent(Graphics g)更好吗?

Is it better to use paintComponent(Graphics g)?.

如果要让图像显示在其他组件的后面，否则将其显示在JLabel中.这里的问题很可能是您正在访问嵌入式应用程序资源，就像它是File一样.嵌入式资源必须通过URL访问.

It is if you want the image to appear behind other components, otherwise display it in a JLabel. The problem here is most likely that you are accessing an embedded application resource as if it were a File. Embedded resources must be accessed via URL.

URL urlToImage = this.getClass().getResource("/images/BrokenFrameResized.jpg");
ImageIcon icon = new ImageIcon(urlToImage);
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