所以我正在尝试使用托盘菜单并且我有这条线。
final TrayIcon trayIcon = new TrayIcon(createImage("duke.jpg", "tray icon"));
方法 createImage 是
protected static Image createImage(String path, String description) {
URL imageURL = TrayIconDemo.class.getResource(path);
if (imageURL == null) {
System.err.println("Resource not found: " + path);
return null;
} else {
return (new ImageIcon(imageURL, description)).getImage();
}
}
当我运行程序时出现以下错误
Resource not found: duke.jpg
Exception in thread "AWT-EventQueue-0" java.lang.IllegalArgumentException: creating TrayIcon with null Image
at java.awt.TrayIcon.<init>(Unknown Source)
at misc.TrayIconDemo.createAndShowGUI(TrayIconDemo.java:76)
at misc.TrayIconDemo.access$0(TrayIconDemo.java:68)
at misc.TrayIconDemo$1.run(TrayIconDemo.java:63)
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$200(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)
这是我的文件夹的图片,显示了图像的位置。
http://i.stack.imgur.com/80tFY.png
我只想声明,我发现了这个http://www.oracle.com/technetwork/articles/javase/systemtray-139788.html,无论有没有图像,它都能正常工作。此外,图像必须放在源文件夹中,而不是 .java 所在的文件夹中才能显示,所以我假设它必须存在于我的问题所涉及的原始代码中。因此,如果有人需要有关系统托盘的帮助,只需检查链接。