试试效果如何
Border oldBorder = jintelnalframe.getBorder();
jintelnalframe.setBorder(BorderFactory.createEmptyBorder()); //去掉边框
jintelnalframe.setBorder(oldBorder); //恢复顺便能说说你是怎么去掉它标题栏的吗?
Border oldBorder = jintelnalframe.getBorder();
jintelnalframe.setBorder(BorderFactory.createEmptyBorder()); //去掉边框
jintelnalframe.setBorder(oldBorder); //恢复顺便能说说你是怎么去掉它标题栏的吗?
MyInternalFrameUI ui=new MyInternalFrameUI(youJInternalFrame);
youJInternalFrame.setUI(ui);