Question

我创建了一个运行junit测试的applet。当我从Eclipse运行applet时，一切正常。当我尝试将其嵌入HTML时，我正确地获得了UI，但是当我单击“确定”开始执行测试时，我收到以下错误。

Exception in thread "AWT-EventQueue-2" java.lang.NoClassDefFoundError: org/junit/runner/notification/RunListener
    at lefty.GuiContainer$1.actionPerformed(GuiContainer.java:32)
    at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
    at javax.swing.AbstractButton$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 Source)
    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.Component.dispatchEvent(Unknown Source)
    at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
    at java.awt.EventQueue.access$000(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.security.ProtectionDomain$1.doIntersectionPrivilege(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$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)
Caused by: java.lang.ClassNotFoundException: org.junit.runner.notification.RunListener
    at sun.plugin2.applet.Applet2ClassLoader.findClass(Unknown Source)
    at sun.plugin2.applet.Plugin2ClassLoader.loadClass0(Unknown Source)
    at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
    at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    ... 36 more

我已将所有类加上所有externan jar文件包含在一个.jar中，并且当我从HTML调用applet时使用它。我的HTML非常简单：

   <html>
   <title> Performance App </title>
   <body>
   <h2> Applet... </h2>
   <applet code=lefty.AppletSetup.class width="200" height="200"       archive="performanceApp.jar">
   </applet>
   </body>
   </htmL>

另外我必须提到我的一个类扩展了RunListener但是我已经将junit.jar包含在我的classpath和最后一个jar中。

Answer 1

另外我必须提到我的一个类扩展了RunListener但是我已经将junit.jar包含在我的classpath和最后一个jar中。

有些观点

A）你是如何在项目罐中加入外部罐子的？
B）classpath - 你的意思是一个运行的工程？
C）

引起：java.lang.ClassNotFoundException： org.junit.runner.notification.RunListener这一行表示该类真的不见了，所以它是在项目jar中吗？

我想你不应该用单元测试代码部署applet;仅仅因为所有单元测试都是针对IDE applet模拟运行的;所以尝试在没有junit的情况下部署它

祝你好运

Applet错误java.lang.NoClassDefFoundError

1 个答案: