Example usage for javax.xml.xpath XPathFactory newInstance

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

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Introduction

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

Prototype

public static XPathFactory newInstance()

Source Link

Document

Get a new XPathFactory instance using the default object model, #DEFAULT_OBJECT_MODEL_URI , the W3C DOM.

This method is functionally equivalent to:

 newInstance(DEFAULT_OBJECT_MODEL_URI)

Since the implementation for the W3C DOM is always available, this method will never fail.

Usage

From source file:Main.java

public static void main(String[] args) throws Exception {
    DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
    Document doc = factory.newDocumentBuilder().parse(new File("Sample.xml"));
    XPathFactory xFactory = XPathFactory.newInstance();
    XPath xPath = xFactory.newXPath();
    XPathExpression exp = xPath.compile(
            "/article/body/section/region[contains(translate(text(), 'ABCDEFGHIJKLMNOPQRSTUVWXYZ', 'abcdefghijklmnopqrstuvwxyz'), 'perfect')]");
    NodeList nl = (NodeList) exp.evaluate(doc.getFirstChild(), XPathConstants.NODESET);
    for (int index = 0; index < nl.getLength(); index++) {
        Node node = nl.item(index);
        System.out.println(node.getTextContent());
    }//  w w w  . j a v a 2  s.  c  om
}

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:Main.java

public static void main(String[] args) throws Exception {
    String xmlfile = "data.xml";
    DocumentBuilderFactory docFactory = DocumentBuilderFactory.newInstance();
    DocumentBuilder docBuilder = docFactory.newDocumentBuilder();
    Document doc = docBuilder.parse(xmlfile);

    XPathFactory xpathFactory = XPathFactory.newInstance();
    XPath xpath = xpathFactory.newXPath();
    Element element = (Element) xpath.evaluate("/root/param[@name='name2']", doc, XPathConstants.NODE);
    System.out.println(element.getTextContent());
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    DocumentBuilderFactory docFactory = DocumentBuilderFactory.newInstance();
    docFactory.setNamespaceAware(true);/*from w  ww  . j ava  2 s.c  o  m*/
    DocumentBuilder builder = docFactory.newDocumentBuilder();
    Document doc = builder.parse("data.xml");
    XPathExpression expr = XPathFactory.newInstance().newXPath().compile("/script/data");
    Object hits = expr.evaluate(doc, XPathConstants.NODESET);
    if (hits instanceof NodeList) {
        NodeList list = (NodeList) hits;
        for (int i = 0; i < list.getLength(); i++) {
            System.out.println(list.item(i).getTextContent());
        }
    }
}

From source file:Main.java

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

    XPathFactory xpathFactory = XPathFactory.newInstance();
    XPath xpath = xpathFactory.newXPath();
    Element element = (Element) xpath.evaluate("//node3/name", document, XPathConstants.NODE);
}

From source file:Main.java

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

    XPathFactory xpathFactory = XPathFactory.newInstance();
    XPath xpath = xpathFactory.newXPath();
    Element element = (Element) xpath.evaluate("//*[@id='one']", document, XPathConstants.NODE);
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
    factory.setNamespaceAware(true);/* w w w  .ja va 2s. 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 {
    String xml = "<company><year id='2000'><quarter id='1' sales='80'/></year><year id='2001'><quarter id='1' sales='20'/></year></company>";
    String xpath = "/company/year[@id=2001]";
    XPath xPath = XPathFactory.newInstance().newXPath();
    Node node = (Node) xPath.evaluate(xpath, new InputSource(new StringReader(xml)), XPathConstants.NODE);

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

From source file:Main.java

public static void main(String[] args) throws Exception {
    Document doc = DocumentBuilderFactory.newInstance().newDocumentBuilder().parse(new InputSource("data.xml"));

    XPath xpath = XPathFactory.newInstance().newXPath();
    NodeList nodes = (NodeList) xpath.evaluate("//employee/name[text()='old']", doc, XPathConstants.NODESET);

    for (int idx = 0; idx < nodes.getLength(); idx++) {
        nodes.item(idx).setTextContent("new value");
    }/* w  ww.  j  a va2 s .  c  o m*/
    Transformer xformer = TransformerFactory.newInstance().newTransformer();
    xformer.transform(new DOMSource(doc), new StreamResult(new File("data_new.xml")));
}

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 {/* ww  w . ja v  a  2 s .c  o  m*/
            node.setNodeValue("42");
        }
    }
}