物质外观和感觉的问题答案

【问题标题】：Problem with substance look and feel物质外观和感觉的问题
【发布时间】：2011-04-24 12:57:17
【问题描述】：

我已经按内容下载了最近的库，并且我还下载了支持 SwingX 组件的插件。当我运行我的应用程序时，我仍然收到以下错误

UIDefaults.getUI() failed: no ComponentUI class for:   org.jdesktop.swingx.JXTaskPaneContainer[,0,0,0x0,invalid,alignmentX=0.0,alignmentY=0.0,bord  er=,flags=9,maximumSize=,minimumSize=,preferredSize=]  
java.lang.Error  
        at javax.swing.UIDefaults.getUIError(UIDefaults.java:711)  
        at javax.swing.MultiUIDefaults.getUIError(MultiUIDefaults.java:133)  
        at javax.swing.UIDefaults.getUI(UIDefaults.java:741)  
        at javax.swing.UIManager.getUI(UIManager.java:1017)  
        at org.jdesktop.swingx.plaf.LookAndFeelAddons.getUI(LookAndFeelAddons.java:308)  
        at org.jdesktop.swingx.JXTaskPaneContainer.updateUI(JXTaskPaneContainer.java:141)  
        at javax.swing.JPanel.<init>(JPanel.java:69)  
        at javax.swing.JPanel.<init>(JPanel.java:78)  
        at org.jdesktop.swingx.JXPanel.<init>(JXPanel.java:133)  
        at org.jdesktop.swingx.JXTaskPaneContainer.<init>(JXTaskPaneContainer.java:113)  
        at operator.table_browser.initComponents(table_browser.java:48)  
        at operator.table_browser.<init>(table_browser.java:33)  
        at forms_helper.form_objects.<clinit>(form_objects.java:71)  
        at Main$1.run(Main.java:53)  
        at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)  
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:597)  
        at   java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)  
        at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)  
        at   java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)  
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)  
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)  
        at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)  
Exception in thread "AWT-EventQueue-0" java.lang.ExceptionInInitializerError  
        at Main$1.run(Main.java:53)  
        at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)  
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:597)  
        at   java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)  
        at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)  
        at   java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)  
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)  
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)  
        at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)  
Caused by: java.lang.NullPointerException  
        at org.jdesktop.swingx.plaf.LookAndFeelAddons.getUI(LookAndFeelAddons.java:313)  
        at org.jdesktop.swingx.JXTaskPaneContainer.updateUI(JXTaskPaneContainer.java:141)  
        at javax.swing.JPanel.<init>(JPanel.java:69)  
        at javax.swing.JPanel.<init>(JPanel.java:78)  
        at org.jdesktop.swingx.JXPanel.<init>(JXPanel.java:133)  
        at org.jdesktop.swingx.JXTaskPaneContainer.<init>(JXTaskPaneContainer.java:113)  
        at operator.table_browser.initComponents(table_browser.java:48)  
        at operator.table_browser.<init>(table_browser.java:33)  
        at forms_helper.form_objects.<clinit>(form_objects.java:71)  
        ... 9 more

帮我解决这个问题！！

【问题讨论】：

标签： java swing swingx substance

【解决方案1】：

第一个问题，您是否在 EDT 上正确添加了 Substance L&F

f.e.

SwingUtilities.invokeLater(new Runnable() {

        @Override
        public void run() {
            try {
                UIManager.setLookAndFeel(new SubstanceOfficeSilver2007LookAndFeel());
                SwingUtilities.updateComponentTreeUI(frame);
            } catch (UnsupportedLookAndFeelException e) {
                throw new RuntimeException(e);
            }
        }
    });

【讨论】：

我没有添加这一行 SwingUtilities.updateComponentTreeUI(frame);
但我已经添加了第一行以包含 LAF
:-) 这可能只是开始，请确保对于这个 L&F，您需要在 EDT 上正确更新大量 ***
如果您将使用或已经使用一些 XxxRendered 扩展 DefaultXxxRenderer，那么您需要更改扩展 SubstanceXxxRenderer，渲染器内容可能会保留，但没人知道，我也不是这个 L&F 的专家，刚刚尝试过，只是为了消除一些 EDT 问题 .... :-)
你当然需要 invokeLater() 方法。但是，如果您之后创建框架，您真的需要第二行 updateComponentTreeUI() 吗？你是从我能读到的一些资源中得到的吗？谢谢

【解决方案2】：

谢谢大家！！

我通过重置 NetBeans 缓存文件解决了这个问题 :) NetBeans 有时很奇怪...不得不解决一些完全不相关的问题.. :)

【讨论】：