Question

我使用netbeans

开发java程序

我在GUI应用程序中添加了一个外观和感觉，它是来自这个网站的Synthetica AluOxide外观：http://www.javasoft.de/synthetica/themes/。

我在项目库中使用Add Jar / Folder对话框添加了Synthetica.jar和syntheticaAluOxide.jar。

然后我将此代码添加到我的类加载中：

import de.javasoft.plaf.synthetica.SyntheticaAluOxideLookAndFeel;

。。

try 
    {
      UIManager.setLookAndFeel(new SyntheticaAluOxideLookAndFeel());
    } 
    catch (Exception e) 
    {
      e.printStackTrace();
    }

但是当我运行我的应用程序时，我没有得到任何更改，当我点击我的应用程序中的某个组件时，我收到此错误：

线程中的异常＆＃34; AWT-EventQueue-0＆＃34;显示java.lang.NullPointerException 在 sun.font.FontDesignMetrics $ MetricsKey.init（FontDesignMetrics.java:217） at sun.font.FontDesignMetrics.getMetrics（FontDesignMetrics.java:286）在 sun.swing.SwingUtilities2.getFontMetrics（SwingUtilities2.java:1003）在javax.swing.JComponent.getFontMetrics（JComponent.java:1615）at sun.swing.MenuItemLayoutHelper.reset（MenuItemLayoutHelper.java:125）在 javax.swing.plaf.synth.SynthMenuItemLayoutHelper。（SynthMenuItemLayoutHelper.java:119）在 javax.swing.plaf.synth.SynthGraphicsUtils.paint（SynthGraphicsUtils.java:498）在javax.swing.plaf.synth.SynthMenuUI.paint（SynthMenuUI.java:283）at javax.swing.plaf.synth.SynthMenuUI.update（SynthMenuUI.java:248）at at javax.swing.JComponent.paintComponent（JComponent.java:769）at javax.swing.JComponent.paint（JComponent.java:1045）at javax.swing.JComponent.paintChildren（JComponent.java:878）at javax.swing.JComponent.paint（JComponent.java:1054）at javax.swing.JComponent.paintChildren（JComponent.java:878）at javax.swing.JComponent.paint（JComponent.java:1054）at javax.swing.JLayeredPane.paint（JLayeredPane.java:585）at at javax.swing.JComponent.paintChildren（JComponent.java:878）at javax.swing.JComponent.paint（JComponent.java:1054）at javax.swing.JComponent.paintToOffscreen（JComponent.java:5212）at javax.swing.BufferStrategyPaintManager.paint（BufferStrategyPaintManager.java:295）在javax.swing.RepaintManager.paint（RepaintManager.java:1236）at javax.swing.JComponent._paintImmediately（JComponent.java:5160）at javax.swing.JComponent.paintImmediately（JComponent.java:4971）at javax.swing.RepaintManager $ 3.run（RepaintManager.java:796）at javax.swing.RepaintManager $ 3.run（RepaintManager.java：784）at java.security.AccessController.doPrivileged（Native Method）at java.security.ProtectionDomain $ 1.doIntersectionPrivilege（ProtectionDomain.java:76）在 javax.swing.RepaintManager.paintDirtyRegions（RepaintManager.java:784）在 javax.swing.RepaintManager.paintDirtyRegions（RepaintManager.java:757）在 javax.swing.RepaintManager.prePaintDirtyRegions（RepaintManager.java:706）在javax.swing.RepaintManager.access $ 1000（RepaintManager.java:62）at javax.swing.RepaintManager中的$ ProcessingRunnable.run（RepaintManager.java:1651） at java.awt.event.InvocationEvent.dispatch（InvocationEvent.java:251）在java.awt.EventQueue.dispatchEventImpl（EventQueue.java:727）at java.awt.EventQueue.access $ 200（EventQueue.java:103）at java.awt.EventQueue $ 3.run（EventQueue.java:688）at java.awt.EventQueue $ 3.run（EventQueue.java:686）at java.security.AccessController.doPrivileged（Native Method）at java.security.ProtectionDomain $ 1.doIntersectionPrivilege（ProtectionDomain.java:76）在java.awt.EventQueue.dispatchEvent（EventQueue.java:697）at java.awt.EventDispatchThread.pumpOneEventForFilters（EventDispatchThread.java:242）在 java.awt.EventDispatchThread.pumpEventsForFilter（EventDispatchThread.java:161）在 java.awt.EventDispatchThread.pumpEventsForHierarchy（EventDispatchThread.java:150）在 java.awt.EventDispatchThread.pumpEvents（EventDispatchThread.java:146）在 java.awt.EventDispatchThread.pumpEvents（EventDispatchThread.java:138） at java.awt.EventDispatchThread.run（EventDispatchThread.java:91）线程中的异常＆＃34; AWT-EventQueue-0＆＃34;显示java.lang.NullPointerException 在 sun.font.FontDesignMetrics $ MetricsKey.init（FontDesignMetrics.java:217） at sun.font.FontDesignMetrics.getMetrics（FontDesignMetrics.java:286）在 sun.swing.SwingUtilities2.getFontMetrics（SwingUtilities2.java:1003）在javax.swing.JComponent.getFontMetrics（JComponent.java:1615）at sun.swing.MenuItemLayoutHelper.reset（MenuItemLayoutHelper.java:126）在 javax.swing.plaf.synth.SynthMenuItemLayoutHelper。（SynthMenuItemLayoutHelper.java:119）在 javax.swing.plaf.synth.SynthGraphicsUtils.paint（SynthGraphicsUtils.java:498）在 javax.swing.plaf.synth.SynthMenuItemUI.paint（SynthMenuItemUI.java:283）在 javax.swing.plaf.synth.SynthMenuItemUI.update（SynthMenuItemUI.java:247）在javax.swing.JComponent.paintComponent（JComponent.java:769）at javax.swing.JComponent.paint（JComponent.java:1045）at javax.swing.JComponent.paintChildren（JComponent.java:878）at javax.swing.JComponent.paint（JComponent.java:1054）at javax.swing.JComponent.paintToOffscreen（JComponent.java:5212）at javax.swing.RepaintManager中的$ PaintManager.paintDoubleBuffered（RepaintManager.java:1512）在 javax.swing.RepaintManager中的$ PaintManager.paint（RepaintManager.java:1443）在 javax.swing.BufferStrategyPaintManager.paint（BufferStrategyPaintManager.java:311）在javax.swing.RepaintManager.paint（RepaintManager.java:1236）at javax.swing.JComponent._paintImmediately（JComponent.java:5160）at javax.swing.JComponent.paintImmediately（JComponent.java:4971）at javax.swing.RepaintManager $ 3.run（RepaintManager.java:796）at javax.swing.RepaintManager $ 3.run（RepaintManager.java：784）at java.security.AccessController.doPrivileged（Native Method）at java.security.ProtectionDomain $ 1.doIntersectionPrivilege（ProtectionDomain.java:76）在 javax.swing.RepaintManager.paintDirtyRegions（RepaintManager.java:784）在 javax.swing.RepaintManager.paintDirtyRegions（RepaintManager.java:757）在 javax.swing.RepaintManager.prePaintDirtyRegions（RepaintManager.java:706）在javax.swing.RepaintManager.access $ 1000（RepaintManager.java:62）at javax.swing.RepaintManager中的$ ProcessingRunnable.run（RepaintManager.java:1651） at java.awt.event.InvocationEvent.dispatch（InvocationEvent.java:251）在java.awt.EventQueue.dispatchEventImpl（EventQueue.java:727）at java.awt.EventQueue.access $ 200（EventQueue.java:103）at java.awt.EventQueue $ 3.run（EventQueue.java:688）at java.awt.EventQueue $ 3.run（EventQueue.java:686）at java.security.AccessController.doPrivileged（Native Method）at java.security.ProtectionDomain $ 1.doIntersectionPrivilege（ProtectionDomain.java:76）在java.awt.EventQueue.dispatchEvent（EventQueue.java:697）at java.awt.EventDispatchThread.pumpOneEventForFilters（EventDispatchThread.java:242）在 java.awt.EventDispatchThread.pumpEventsForFilter（EventDispatchThread.java:161）在 java.awt.EventDispatchThread.pumpEventsForHierarchy（EventDispatchThread.java:150）在 java.awt.EventDispatchThread.pumpEvents（EventDispatchThread.java:146）在 java.awt.EventDispatchThread.pumpEvents（EventDispatchThread.java:138） at java.awt.EventDispatchThread.run（EventDispatchThread.java:91）

Answer 1

您是否包含了Synthetica的核心库＆synthetica.jar＆＃39;

确保您的类路径包含所有Synthetica库（包括 Synthetica的核心库＆synthetica.jar＆＃39;）。

在应用程序启动时启用Synthetica外观：

import de.javasoft.plaf.synthetica.SyntheticaClassyLookAndFeel;


try {
    UIManager.setLookAndFeel(new SyntheticaClassyLookAndFeel());
} catch (Exception e) {
    e.printStackTrace();
}

将Java外观与netbeans中的应用集成

1 个答案: