Swing 设置Jbutton（图标）无边框，悬浮有线框样式

 

效果

   
     类似eclipse工具栏的效果，无悬浮，按钮无边框，悬浮时候呈现边框

 

实现

 

        this.setOpaque(false);
        this.setBorder(emptyBorder);
        this.setContentAreaFilled(false);
        this.setFocusPainted(false);
        this.setRolloverEnabled(true);

        this.addMouseListener(new MouseAdapter() {

            @Override
            public void mouseEntered(MouseEvent e) {
                if (isRolloverEnabled()) {
                    setBorder(roverBorder);
                }
            }

            @Override
            public void mouseExited(MouseEvent e) {
                if (isRolloverEnabled()) {
                    setBorder(emptyBorder);
                }
            }
        });