Swing实现点击一个按钮显示一张照片

Posted 2022-10-31 FzshuaiBlog

    刚刚一个大二学妹请教我怎么用Swing实现点击一个按钮显示一张照片，用简单的办法实现了一下。

package com.fzshuai.test;

import javax.swing.*;
import java.awt.*;

/**
 * @author fzshuai
 * @date 2022/04/29 19:27
 * @since 1.0
 */

public class DemoFrame extends JFrame 
    
	JPanel panel;
	JLabel label;
	JButton btn;

    // ImageIcon IMG = new ImageIcon(
    // Toolkit.getDefaultToolkit().createImage(DemoFrame.class.getResource("/QQ截图20220421173615.png")));

    ImageIcon IMG = new ImageIcon("C:/Users/fzshuai/Desktop/QQ截图20220424001608.png");

    public DemoFrame() 
    
    	panel = new JPanel();
        label = new JLabel();
        btn = new JButton("显示图片");
        
        panel.add(label);
        panel.add(btn);
        
        add(panel, BorderLayout.SOUTH);

        // 按钮点击事件
        btn.addActionListener(e -> 
            label.setIcon(IMG);
        );
    

    public static void main(String[] args) 

        DemoFrame frame = new DemoFrame();
        frame.setSize(800, 600);
        frame.setLocationRelativeTo(null);
        frame.setVisible(true);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);