用JDateChooser导出jar错误

Question

我第一次用RMI Connection编写了Java SWING程序。我已经出口了JAR的客户端和作品真的很好，但是当我米试图打开一个特定的JFrame /窗口，它没有做什么而我会收到以下错误消息

Exception in thread "AWT-EventQueue-0" java.lang.NoClassDefFoundError: com/toedt 
er/calendar/JDateChooser 
     at clientValantis.MenuPage$2.actionPerformed(MenuPage.java:66) 
     at javax.swing.AbstractButton.fireActionPerformed(Unknown Source) 
     at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source) 
     at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source) 
     at javax.swing.DefaultButtonModel.setPressed(Unknown Source) 
     at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Sour 
ce) 
     at java.awt.Component.processMouseEvent(Unknown Source) 
     at javax.swing.JComponent.processMouseEvent(Unknown Source) 
     at java.awt.Component.processEvent(Unknown Source) 
     at java.awt.Container.processEvent(Unknown Source) 
     at java.awt.Component.dispatchEventImpl(Unknown Source) 
     at java.awt.Container.dispatchEventImpl(Unknown Source) 
     at java.awt.Component.dispatchEvent(Unknown Source) 
     at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source) 
     at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source) 
     at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source) 
     at java.awt.Container.dispatchEventImpl(Unknown Source) 
     at java.awt.Window.dispatchEventImpl(Unknown Source) 
     at java.awt.Component.dispatchEvent(Unknown Source) 
     at java.awt.EventQueue.dispatchEventImpl(Unknown Source) 
     at java.awt.EventQueue.access$500(Unknown Source) 
     at java.awt.EventQueue$3.run(Unknown Source) 
     at java.awt.EventQueue$3.run(Unknown Source) 
     at java.security.AccessController.doPrivileged(Native Method) 
     at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionP 
rivilege(Unknown Source) 
     at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionP 
rivilege(Unknown Source) 
     at java.awt.EventQueue$4.run(Unknown Source) 
     at java.awt.EventQueue$4.run(Unknown Source) 
     at java.security.AccessController.doPrivileged(Native Method) 
     at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionP 
rivilege(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) 
Caused by: java.lang.ClassNotFoundException: com.toedter.calendar.JDateChooser 
     at java.net.URLClassLoader.findClass(Unknown Source) 
     at java.lang.ClassLoader.loadClass(Unknown Source) 
     at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) 
     at java.lang.ClassLoader.loadClass(Unknown Source) 
     ... 37 more 

JFrame中/窗口，我的程序使用JDateChooser打开，我认为这是问题。我不知道我必须改变，所以JFrame打开。当我在Eclipse中运行程序时，没有这个错误消息。它的工作非常好。与Build Path有关吗？

Answer 1

您错过了包含com.toedter.calendar.JDateChooser（可能是jcalendar-1.X.jar）的Jar文件。
你可以使用eclipse创建一个“fat”jar或者像上面提到的here一样将你的Jar依赖添加到执行类路径中。
一种选择是使用Fat Jar Eclipse Plug-In，另一种是使用Maven创建它，如提到的here。