阅读量:0
在Java中实现点击验证码通常需要使用GUI库来创建验证码图像并监听用户的点击事件。以下是一个简单的示例代码来实现点击验证码：
import javax.swing.*; import java.awt.*; import java.awt.event.MouseAdapter; import java.awt.event.MouseEvent; import java.util.Random; public class ClickCaptcha extends JFrame { private static final int WIDTH = 200; private static final int HEIGHT = 100; private int x; private int y; public ClickCaptcha() { setTitle("Click Captcha"); setSize(WIDTH, HEIGHT); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); x = new Random().nextInt(WIDTH); y = new Random().nextInt(HEIGHT); addMouseListener(new MouseAdapter() { @Override public void mouseClicked(MouseEvent e) { int clickX = e.getX(); int clickY = e.getY(); if (clickX >= x && clickX <= x + 20 && clickY >= y && clickY <= y + 20) { JOptionPane.showMessageDialog(null, "Verification successful!"); } else { JOptionPane.showMessageDialog(null, "Verification failed!"); } x = new Random().nextInt(WIDTH); y = new Random().nextInt(HEIGHT); repaint(); } }); } @Override public void paint(Graphics g) { super.paint(g); g.setColor(Color.BLACK); g.fillRect(x, y, 20, 20); } public static void main(String[] args) { ClickCaptcha clickCaptcha = new ClickCaptcha(); clickCaptcha.setVisible(true); } } 在这个示例中，我们创建了一个继承自JFrame的ClickCaptcha类，窗口大小为200x100。在窗口内部随机生成一个20x20的黑色方块作为验证码。当用户点击窗口时，判断点击的位置是否在验证码方块内，如果在则验证成功，否则验证失败，并重新生成新的验证码。
