摘要： 错误：java.lang.AbstractMethodError: org.apache.xerces.dom.DocumentImpl.setXmlVersion(Ljava/lang/String;)Vat com.sun.org.apache.xalan.internal.xsltc.trax.SAX2DOM.setDocumentInfo(Unknown Source)at com.sun.org.apache.xalan.internal.xsltc.trax.SAX2DOM.startElement(Unknown Source)at com.sun.org.apache.xml. 阅读全文