dom4j使用xpath.valueOf的问题

Question

http://www.ibm.com/developerworks/cn/xml/x-dom4j.html

Answer 1

调试下看看都包含了什么值 以下工厂方式供参考 
DocumentBuilderFactory fac = DocumentBuilderFactory.newInstance();
            DocumentBuilder builder = fac.newDocumentBuilder();
            Document doc = builder.parse(new File("aa.xml"));
            XPathFactory pathFactory = XPathFactory.newInstance();
            XPath path = pathFactory.newXPath();
            NodeList list = (NodeList) path.evaluate("//product/colour", doc,
                    XPathConstants.NODESET);            for (int i = 0; i < list.getLength(); i++) {
                System.out.println(list.item(i).getTextContent());
            }