Example usage for javax.xml.xpath XPathExpression evaluate

Introduction

In this page you can find the example usage for javax.xml.xpath XPathExpression evaluate.

Prototype

public Object evaluate(InputSource source, QName returnType) throws XPathExpressionException;

Source Link

Document

Evaluate the compiled XPath expression in the context of the specified InputSource and return the result as the specified type.

Usage

From source file:Main.java

public static void main(String[] args) throws Exception {
    Document doc = DocumentBuilderFactory.newInstance().newDocumentBuilder().parse(new File("Test.xml"));
    XPath xPath = XPathFactory.newInstance().newXPath();
    XPathExpression exp = xPath.compile("//data");
    NodeList nl = (NodeList) exp.evaluate(doc, XPathConstants.NODESET);
    System.out.println("Found " + nl.getLength() + " results");
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    InputStream inputStream = new FileInputStream("data.xml");
    InputSource inputSource = new InputSource(inputStream);
    XPath xpath = XPathFactory.newInstance().newXPath();
    XPathExpression expr = xpath.compile("/PaymentElement/Payment/@seqID");
    Object result = expr.evaluate(inputSource, XPathConstants.STRING);
    System.out.println(result);/*from  w w w . ja  va  2s  .  c om*/
}

From source file:Main.java

public static void main(String[] args)
        throws ParserConfigurationException, SAXException, IOException, XPathExpressionException {

    DocumentBuilderFactory domFactory = DocumentBuilderFactory.newInstance();
    domFactory.setNamespaceAware(true);//from  ww  w .  java2s.  c o  m
    DocumentBuilder builder = domFactory.newDocumentBuilder();
    Document doc = builder.parse("books.xml");

    XPathFactory factory = XPathFactory.newInstance();
    XPath xpath = factory.newXPath();
    XPathExpression expr = xpath.compile("//numDocs");

    Object result = expr.evaluate(doc, XPathConstants.NODESET);
    NodeList nodes = (NodeList) result;
    for (int i = 0; i < nodes.getLength(); i++) {
        System.out.println(nodes.item(i).getNodeValue());
    }
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    DocumentBuilderFactory domFactory = DocumentBuilderFactory.newInstance();
    domFactory.setNamespaceAware(true);/*from w ww  .  j  a v  a 2  s  .  co m*/
    DocumentBuilder builder = domFactory.newDocumentBuilder();
    Document dDoc = builder.parse("c:\\file.xml");
    XPath xPath = XPathFactory.newInstance().newXPath();
    xPath.setNamespaceContext(new UniversalNamespaceResolver(dDoc));
    String query = "//rss/channel/yweather:location/@city";
    XPathExpression expr = xPath.compile(query);
    Object result = expr.evaluate(dDoc, XPathConstants.STRING);
    System.out.println(result);
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
    Document doc = factory.newDocumentBuilder()
            .parse("http://stackoverflow.com/feeds/tag?tagnames=java&sort=newest");
    Element root = doc.getDocumentElement();
    XPath xPath = XPathFactory.newInstance().newXPath();
    XPathExpression expression = xPath.compile("//entry");
    NodeList nl = (NodeList) expression.evaluate(root, XPathConstants.NODESET);
    System.out.println("Found " + nl.getLength() + " items...");
    for (int index = 0; index < nl.getLength(); index++) {
        Node node = nl.item(index);
        expression = xPath.compile("title");
        Node child = (Node) expression.evaluate(node, XPathConstants.NODE);
        System.out.println(child.getTextContent());
    }/*from   w  ww. j  ava2s  .  com*/
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    XPath xPath = XPathFactory.newInstance().newXPath();
    FileInputStream file = new FileInputStream(new File("c:/data.xml"));

    DocumentBuilderFactory builderFactory = DocumentBuilderFactory.newInstance();

    DocumentBuilder builder = builderFactory.newDocumentBuilder();

    Document xmlDocument = builder.parse(file);

    XPathExpression expr = xPath.compile("//project/*");
    NodeList list = (NodeList) expr.evaluate(xmlDocument, XPathConstants.NODESET);
    for (int i = 0; i < list.getLength(); i++) {
        Node node = list.item(i);
        System.out.println(node.getNodeName() + "=" + node.getTextContent());
    }/*from w  w w  .j ava2 s.  com*/
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    List<String> names = new ArrayList<>();
    URL oracle = new URL("http://weather.yahooapis.com/forecastrss?w=2502265");
    InputStream is = oracle.openStream();
    DocumentBuilderFactory domFactory = DocumentBuilderFactory.newInstance();
    domFactory.setNamespaceAware(true);/*  w ww. j ava  2 s. c  o  m*/
    DocumentBuilder builder = domFactory.newDocumentBuilder();
    Document doc = builder.parse(is);
    XPathFactory factory = XPathFactory.newInstance();
    XPath xpath = factory.newXPath();
    XPathExpression expr = xpath.compile("//*:*/@*");
    Object result = expr.evaluate(doc, XPathConstants.NODESET);
    NodeList nl = (NodeList) result;
    for (int i = 0; i < nl.getLength(); i++) {
        names.add(nl.item(i).getNodeName());
        Node node = nl.item(i);
        String path = "." + node.getNodeName() + " = " + node.getNodeValue();
        node = ((Attr) node).getOwnerElement();
        while (node != null) {
            path = node.getNodeName() + '/' + path;
            node = node.getParentNode();
        }
        System.out.println(path);
    }
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
    factory.setNamespaceAware(true);// w w w.  j  a v  a 2 s  .  c o  m
    DocumentBuilder builder = factory.newDocumentBuilder();
    Document doc = builder.parse("test.xml");

    XPathFactory xpathFactory = XPathFactory.newInstance();
    XPath xpath = xpathFactory.newXPath();
    XPathExpression expr = xpath.compile("//element[@key='property1']/text()");
    Object result = expr.evaluate(doc, XPathConstants.NODESET);

    NodeList nodes = (NodeList) result;
    for (int i = 0; i < nodes.getLength(); i++) {
        System.out.println(nodes.item(i).getNodeValue());
    }
}

From source file:Main.java

public static void main(String[] args) throws Exception {

    String xml = "<metadata><codes class = 'class1'>" + "<code code='ABC'>" + "<detail x='blah blah'/>"
            + "</code>" + "</codes>" + "<codes class = 'class2'>" + "<code code = '123'>"
            + "<detail x='blah blah'/></code></codes></metadata>";

    DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
    DocumentBuilder db = dbf.newDocumentBuilder();
    Document doc = db.parse(new ByteArrayInputStream(xml.getBytes()));

    XPath xPath = XPathFactory.newInstance().newXPath();
    XPathExpression expr = xPath.compile("//codes/code[@code ='ABC']");
    Object result = expr.evaluate(doc, XPathConstants.NODESET);

    NodeList nodes = (NodeList) result;
    System.out.println(nodes.getLength() > 0 ? "Yes" : "No");
    for (int i = 0; i < nodes.getLength(); i++) {
        System.out.println("nodes: " + nodes.item(i).getNodeValue());
    }//from   w  w  w.ja  v a  2 s. c o  m
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
    Document document = dbf.newDocumentBuilder().parse(new File("input.xml"));

    XPathFactory xpf = XPathFactory.newInstance();
    XPath xpath = xpf.newXPath();
    XPathExpression expression = xpath.compile("//A/B[C/E/text()=13]");

    Node b13Node = (Node) expression.evaluate(document, XPathConstants.NODE);
    b13Node.getParentNode().removeChild(b13Node);

    TransformerFactory tf = TransformerFactory.newInstance();
    Transformer t = tf.newTransformer();
    t.transform(new DOMSource(document), new StreamResult(System.out));
}