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How do you quickly locate element/elements via xpath string on a given org.w3c.dom.document? there seems to be no FindElementsByXpath() method. For example
/html/body/p/div[3]/a I found that recursively iterating through all the child node levels to be quite slow when there are lot of elements of same name. Any suggestions?
I cannot use any parser or library, must work with w3c dom document only.
861
Try this:
//obtain Document somehow, doesn't matter how DocumentBuilder b = DocumentBuilderFactory.newInstance().newDocumentBuilder(); org.w3c.dom.Document doc = b.parse(new FileInputStream("page.html")); //Evaluate XPath against Document itself XPath xPath = XPathFactory.newInstance().newXPath(); NodeList nodes = (NodeList)xPath.evaluate("/html/body/p/div[3]/a", doc, XPathConstants.NODESET); for (int i = 0; i < nodes.getLength(); ++i) { Element e = (Element) nodes.item(i); } With the following page.html file:
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