Swing -如何修改JButton的边框颜色？

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

public class CustomButton extends JButton {
    private Color borderColor;

    public CustomButton(String text, Color borderColor) {
        super(text);
        this.borderColor = borderColor;
    }

    @Override
    protected void paintBorder(Graphics g) {
        Graphics2D g2 = (Graphics2D) g;
        g2.setColor(borderColor);
        g2.setStroke(new BasicStroke(2)); // 设置边框宽度
        g2.drawRoundRect(0, 0, getWidth() - 1, getHeight() - 1, 10, 10); // 绘制圆角矩形边框
    }
}

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

public class Main {
    public static void main(String[] args) {
        JFrame frame = new JFrame("Custom Button Example");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setSize(300, 200);

        // 创建自定义按钮，并设置边框颜色为红色
        CustomButton button = new CustomButton("Click me", Color.RED);
        button.setPreferredSize(new Dimension(100, 50));

        frame.getContentPane().add(button);
        frame.setVisible(true);
    }
}