java.lang.reflect.InvocationTargetException这个问题头疼好久了，谢谢！

Question

TransformerFactory tFactory = TransformerFactory.newInstance();
Transformer transformer = tFactory.newTransformer();
DOMSource source = new DOMSource(document);
StreamResult result = new StreamResult(new File(fileName));
transformer.transform(source, result);

我在调用上面的一段代码的时候一直报下面的错误，有没有高手知道？

java.lang.reflect.InvocationTargetExceptionIWAV0052E Invocation Target Exception creating test.CommonDAO

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.ve.internal.java.vce.launcher.remotevm.JavaBeansLauncher.main(JavaBeansLauncher.java:79)
Caused by: java.lang.AbstractMethodError: org.apache.crimson.tree.XmlDocument.getXmlStandalone()Z
at com.sun.org.apache.xalan.internal.xsltc.trax.DOM2TO.setDocumentInfo(Unknown Source)
at com.sun.org.apache.xalan.internal.xsltc.trax.DOM2TO.parse(Unknown Source)
at com.sun.org.apache.xalan.internal.xsltc.trax.DOM2TO.parse(Unknown Source)
at com.sun.org.apache.xalan.internal.xsltc.trax.TransformerImpl.transformIdentity(Unknown Source)
at com.sun.org.apache.xalan.internal.xsltc.trax.TransformerImpl.transform(Unknown Source)
at com.sun.org.apache.xalan.internal.xsltc.trax.TransformerImpl.transform(Unknown Source)
at test.CommonDAO.commitTransformer(CommonDAO.java:62)
at test.CommonDAO.deleteInfo(CommonDAO.java:194)
at test.CommonDAO.main(CommonDAO.java:207)
... 5 more

Answer 1

问题的根源在这一行
[code="xml"]Caused by: java.lang.AbstractMethodError: org.apache.crimson.tree.XmlDocument.getXmlStandalone()Z [/code]
你是否继承这个类？重写了这个方法？是否缺少jar包？

只有靠你自己去解决了，这个应该是jar包的可能性大一些。因为你就这么几行代码。