Question

尝试使用以下代码段阅读.docx文件时：

public void parseDocxFile(String textEntered) {
    try {
        XWPFDocument doc = new XWPFDocument(new FileInputStream(new File(SContainer.getFilePath())));
        XWPFWordExtractor extractor = new XWPFWordExtractor(doc);
        System.out.println("DOCX File : " + extractor.getText());
    }catch(Exception exc) {exc.printStackTrace();}
}

我得到一个例外，其中说：

Exception in thread "AWT-EventQueue-0" java.lang.NoClassDefFoundError: org/apache
/xmlbeans/XmlException
at org.suhail.gui.Main.parseDocxFile(Main.java:246)
at org.suhail.gui.Main.jButton1ActionPerformed(Main.java:167)
at org.suhail.gui.Main.access$000(Main.java:22)
at org.suhail.gui.Main$1.actionPerformed(Main.java:71)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236)
at java.awt.Component.processMouseEvent(Component.java:6038)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3260)
at java.awt.Component.processEvent(Component.java:5803)
at java.awt.Container.processEvent(Container.java:2058)
at java.awt.Component.dispatchEventImpl(Component.java:4410)
at java.awt.Container.dispatchEventImpl(Container.java:2116)
at java.awt.Component.dispatchEvent(Component.java:4240)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4322)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3986)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3916)
at java.awt.Container.dispatchEventImpl(Container.java:2102)
at java.awt.Window.dispatchEventImpl(Window.java:2429)
at java.awt.Component.dispatchEvent(Component.java:4240)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:273)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:183)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:173)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:168)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:160)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:121)

这是什么意思？它为什么会发生？

Answer 1

您的类路径缺少一个库xmlbeans。查看POI的Component Map页面。

Reassuming：

您需要poi-ooxml
poi-ooxml取决于poi-ooxml-schemas（请参阅dependencies标记）
poi-ooxml-schemas取决于xmlbeans

所以你必须添加xmlbeans jar。

Answer 2

在类路径上添加xmlbeans。

NoClassDefFoundError解释：

如果Java虚拟机或ClassLoader实例尝试加载类的定义（作为普通方法调用的一部分或作为使用新表达式创建新实例的一部分），则抛出该类，并且没有类的定义可以被发现。

在编译当前正在执行的类时存在搜索的类定义，但无法再找到该定义。

当我尝试读取.DOCX文件时，为什么会出现异常？

2 个答案: