xception in thread "AWT-EventQueue-0" java.lang.AbstractMethodError: org.apache.xerces.dom.DocumentImpl.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)
具体代码为：
Transformer transformer = TransformerFactory.newInstance().newTransformer(); transformer.setOutputProperty(OutputKeys.INDENT, "yes"); transformer.setOutputProperty(OutputKeys.METHOD, "xml"); transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "2"); transformer.transform(new DOMSource(doc), new StreamResult(new FileOutputStream(file)));
一段简单的写xml文件代码
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = factory.newDocumentBuilder();
doc = builder.newDocument();
深入发掘错误原因，网上搜索得知
错误原因： 认为是由于jdk1.5 与 tomcat5.0之间的关于 TransformerFactoryImpl 类的冲突造成的。 tomcat-5.0.28/common/endorsed下有两个jar包：xercesImpl.jar和xml-apis.jar，其中的类 javax.xml.transform.TransformerFactory 与jdk1.5中的类org.apache.xalan.processor.TransformerFactoryImpl其实是同一个类。 in tomcat java is called with the following argument: -Djava.endorsed.dirs="X:/my_app/Portal/tomcat/common/endorsed" In this directory you find two jar files: xercesImpl.jar and xml-apis.jar needed by tomcat and that must be loaded before all xmsl stuff present in the jdk (1.4 naming problem). And in the file xml-apis.jar the TransformerFactoryImpl is set to "org.apache.xalan.processor.TransformerFactoryImpl". 解决办法： 1. 将xml-apis.jar移出endorsed文件夹。 2. 用xalan系列jar包替换原来的xercesImpl.jar和xml-apis.jar。 xalan系列jar包：serializer.jar、xalan.jar、xercesImpl.jar和xml-apis.jar。 3. For other application, just check this file or dom3-xml-apis.jar in your class path.
原帖地址：http://blog.csdn.net/lcj8/archive/2008/06/07/2519881.aspx
删除xerces.jar包的路径配置后正常
