Java 在 JPanel 上显示 jpg 图像
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Display a jpg image on a JPanel
提问by burntsugar
What would be the most appropriate image type to display a jpg image (loaded from a local folder) on a JPanel?
在 JPanel 上显示 jpg 图像（从本地文件夹加载）最合适的图像类型是什么？
Cheers.
干杯。
采纳答案by Eugene Ryzhikov
ImageIcon image = new ImageIcon("image/pic1.jpg");
JLabel label = new JLabel("", image, JLabel.CENTER);
JPanel panel = new JPanel(new BorderLayout());
panel.add( label, BorderLayout.CENTER );
回答by Sean A.O. Harney
You could use a javax.swing.ImageIcon and add it to a JLabel using setIcon() method, then add the JLabel to the JPanel.
您可以使用 javax.swing.ImageIcon 并使用 setIcon() 方法将其添加到 JLabel，然后将 JLabel 添加到 JPanel。
回答by Tom
回答by Per Alexandersson
I would use a Canvas that I add to the JPanel, and draw the image on the Canvas. But Canvas is a quite heavy object, sine it is from awt.
我会使用我添加到 JPanel 的画布，并在画布上绘制图像。但是 Canvas 是一个相当重的物体，因为它来自 awt。
回答by Handsken
You could also use
你也可以使用
ImageIcon background = new ImageIcon("Background/background.png");
JLabel label = new JLabel();
label.setBounds(0, 0, x, y);
label.setIcon(background);
JPanel panel = new JPanel();
panel.setLayout(null);
panel.add(label);
if your working with a absolut value as layout.
如果您使用绝对值作为布局。
