关于使用JFrame和JPanel绘制界面时，有时候背景会透明的问题

Question

JFrameJPanel

Answer 1

是跟皮肤有关   你这个是win7的皮肤换个皮肤试一试  ；
这个是我用过的一些皮肤
                                        //String lookAndFeel="com.sun.java.swing.plaf.windows.WindowsLookAndFeel";
//String lookAndFeel = "com.sun.java.swing.plaf.nimbus.NimbusLookAndFeel";
//String lookAndFeel="com.birosoft.liquid.LiquidLookAndFeel";
//String lookAndFeel="org.jvnet.substance.skin.SubstanceRavenGraphiteLookAndFeel";
//String lookAndFeel = "com.jgoodies.plaf.windows.ExtWindowsLookAndFeel";
//String lookAndFeel="org.jvnet.substance.skin.SubstanceBusinessBlackSteelLookAndFeel";
//String lookAndFeel="org.jvnet.substance.skin.SubstanceSaharaLookAndFeel";
//String lookAndFeel="org.jvnet.substance.skin.SubstanceModerateLookAndFeel";
//String lookAndFeel="org.jvnet.substance.skin.SubstanceNebulaBrickWallLookAndFeel";
String lookAndFeel="org.jvnet.substance.skin.SubstanceMistSilverLookAndFeel";
UIManager.setLookAndFeel(lookAndFeel);

Answer 2

做swing，我使用NetBeans，界面化操作。推荐一下吧！