我想对这个
XML文件进行XPath查询(如下所示):
<?xml version="1.0" encoding="UTF-8"?> <!-- MetaDataAPI generated on: Friday,May 25,2007 3:26:31 PM CEST --> <Component xmlns="http://xml.sap.com/2002/10/Metamodel/webdynpro" xmlns:IDX="urn:sap.com:WebDynpro.Component:2.0" mmRelease="6.30" mmVersion="2.0" mmTimestamp="1180099591892" name="MassimaleContr" package="com.bi.massimalecontr" masterLanguage="it"> ... <Component.UsedModels> <Core.Reference package="com.test.test" name="MasterModel" type="Model"/> <Core.Reference package="com.test.massimalecontr" name="MassimaleModel" type="Model"/> <Core.Reference package="com.test.test" name="TravelModel" type="Model"/> </Component.UsedModels> ...
DocumentBuilderFactory domFactory = DocumentBuilderFactory.newInstance(); domFactory.setNamespaceAware(true); DocumentBuilder builder = domFactory.newDocumentBuilder(); Document document = builder.parse(new File("E:\\Test branch\\test.wdcomponent")); XPathFactory factory = XPathFactory.newInstance(); XPath xpath = factory.newXPath(); xpath.setNamespaceContext(new NamespaceContext() { ...(omitted) System.out.println(xpath.evaluate( "//d:Component/d:Component.UsedModels/d:Core.Reference/@name",document));
我期望得到什么:@H_502_5@
MasterModel MassimaleModel TravelModel
我得到什么@H_502_5@
MasterModel
解决方法
你会得到一个NodeList类型的项目
XPathExpression expr = xpath.compile("//Core.Reference"); NodeList list= (NodeList) expr.evaluate(doc,XPathConstants.NODESET); for (int i = 0; i < list.getLength(); i++) { Node node = list.item(i); System.out.println(node.getTextContent()); // work with node