Example usage for javax.xml.xpath XPathFactory newXPath

List of usage examples for javax.xml.xpath XPathFactory newXPath

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  6. newXPath

Introduction

In this page you can find the example usage for javax.xml.xpath XPathFactory newXPath.

Prototype

public abstract XPath newXPath();

Source Link

Document

Return a new XPath using the underlying object model determined when the XPathFactory was instantiated.

Usage

From source file:MainClass.java

public static void main(String[] args) throws Exception {
    DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
    Document retval = dbf.newDocumentBuilder().newDocument();
    Element parent = retval.createElement("parent");
    retval.appendChild(parent);//from  w  w  w  .  j  a va 2 s.com

    Element child1 = retval.createElement("child");
    child1.setTextContent("child.text");
    parent.appendChild(child1);
    Element child2 = retval.createElement("child");
    child2.setTextContent("child.text.2");
    parent.appendChild(child2);

    XPathFactory factory = XPathFactory.newInstance();
    XPath xPath = factory.newXPath();
    System.out.println(xPath.evaluate("//child/text()", retval, XPathConstants.NODE).getClass());

}

From source file:Main.java

public static void main(String[] args) throws Exception {
    DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
    factory.setNamespaceAware(true);// ww  w  .  j  a  v  a 2 s .co 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 {
    XPathFactory xPathFactory = XPathFactory.newInstance();
    XPath xPath = xPathFactory.newXPath();

    InputSource doc = new InputSource(new InputStreamReader(new FileInputStream(new File("file.xml"))));

    String expression = "//Home/data";
    XPathExpression xPathExpression = xPath.compile(expression);

    NodeList elem1List = (NodeList) xPathExpression.evaluate(doc, XPathConstants.NODESET);
    xPathExpression = xPath.compile("@type");

    for (int i = 0; i < elem1List.getLength(); i++) {
        System.out.println(xPathExpression.evaluate(elem1List.item(i), XPathConstants.STRING));
    }/* w  ww . java2s.c o  m*/
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
    DocumentBuilder builder = factory.newDocumentBuilder();
    Document doc = builder.parse(new File("path/to/file.xml"));

    XPathFactory xFactory = XPathFactory.newInstance();
    XPath xPath = xFactory.newXPath();
    XPathExpression expression = xPath.compile("PersonList/Person/Age/text() | PersonList/Person/Name/text()");

    NodeList nodes = (NodeList) expression.evaluate(doc, XPathConstants.NODESET);
    for (int i = 0; i < nodes.getLength(); i++) {
        Node node = nodes.item(i);
        if (node.getParentNode().getNodeName().equals("Name")) {
            node.setNodeValue("new name");
        } else {//  w  ww . j a v a 2  s .co  m
            node.setNodeValue("42");
        }
    }
}

From source file:Main.java

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

    DocumentBuilderFactory domFactory = DocumentBuilderFactory.newInstance();
    domFactory.setNamespaceAware(true);/*from w w w . j av  a2  s .  co 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 factory = DocumentBuilderFactory.newInstance();
    factory.setNamespaceAware(false); // never forget this!
    DocumentBuilder builder = factory.newDocumentBuilder();

    Document doc = builder.parse("/data.xml");

    XPathFactory xPathFactory = XPathFactory.newInstance();
    XPath xpath = xPathFactory.newXPath();

    XPathExpression xPathExpression = xpath.compile("//city/text()");

    Object result = xPathExpression.evaluate(doc, XPathConstants.NODESET);

    System.out.println(result.toString());

    NodeList nodes = (NodeList) result;

    System.out.println(nodes.getLength());
    for (int i = 0; i < nodes.getLength(); i++) {
        System.out.println(nodes.item(i).getNodeValue());
    }//  ww  w  .  j av a 2 s  .c o m
}

From source file:Main.java

public static void main(String[] args) throws Throwable {
    XPathFactory factory = XPathFactory.newInstance();
    XPath xpath = factory.newXPath();
    String entryType = null;// ww w  .j a  v a 2s  . co  m
    XPathExpression[] expressions = new XPathExpression[] {
            xpath.compile("local-name(*[local-name() = 'package'])"),
            xpath.compile("local-name(*[local-name() = 'libapp'])"),
            xpath.compile("local-name(*[local-name() = 'module'])") };

    DocumentBuilderFactory fac = DocumentBuilderFactory.newInstance();
    DocumentBuilder parser = fac.newDocumentBuilder();
    Document doc = parser.parse(args[0]);

    for (int i = 0; i < expressions.length; i++) {
        String found = (String) expressions[i].evaluate(doc.getDocumentElement(), XPathConstants.STRING);
        entryType = mappings.get(found);
        if (entryType != null && !entryType.trim().isEmpty()) {
            break;
        }
    }
    System.out.println(entryType);
}

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  w w  . j  av a 2s  . com
    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 {
    XPathFactory xPathfactory = XPathFactory.newInstance();
    XPath xpath = xPathfactory.newXPath();

    String xml1 = "<xml><product><product_id>2</product_id></product><car><product_id>12345678</product_id></car></xml>";
    String xml2 = "<xml><product><product_id>2</product_id></product><car><car_type id_1=\"2\" id_2=\"32\">55555</car_type></car></xml>";

    Document doc1 = stringToDom(xml1);
    Document doc2 = stringToDom(xml2);

    XPathExpression expr1 = xpath.compile("//car/product_id/text()");
    String carId = (String) expr1.evaluate(doc1, XPathConstants.STRING);

    XPathExpression expr2 = xpath.compile("//car/car_type/text()");
    String carType = (String) expr2.evaluate(doc2, XPathConstants.STRING);

    System.out.println("carId: " + carId);
    System.out.println("carType: " + carType);

}

From source file:MainClass.java

public static void main(String[] args) throws Exception {
    SimpleDateFormat xmlDateFormat = new SimpleDateFormat("MM.dd.yy");

    MapVariableResolver resolver = new MapVariableResolver();
    DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
    DocumentBuilder builder = dbf.newDocumentBuilder();
    Document document = builder.parse(new File("t.xml"));

    XPathFactory factory = XPathFactory.newInstance();
    XPath xPath = factory.newXPath();
    xPath.setXPathVariableResolver(resolver);
    XPathExpression expression = xPath.compile("/schedule/show[@date=$date]/guest");

    String formattedDate = xmlDateFormat.format(new Date(2006, 5, 14));
    resolver.addVariable(null, "date", formattedDate);
    Element guest = (Element) expression.evaluate(document, XPathConstants.NODE);

    System.out.println(guest.getElementsByTagName("name").item(0).getTextContent());
}