Example usage for javax.xml.xpath XPathFactory newInstance

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 {
    XPathFactory xpf = XPathFactory.newInstance();
    XPath xp = xpf.newXPath();//from  ww  w . j a v  a2  s  .co  m
    xp.setNamespaceContext(new MyNamespaceContext());
    XPathExpression xpe = xp.compile("ns:feed/ns:entry");
    FileInputStream xmlStream = new FileInputStream("input.xml");
    InputSource xmlInput = new InputSource(xmlStream);
    Element result = (Element) xpe.evaluate(xmlInput, XPathConstants.NODE);
    System.out.println(result);
}

From source file:Main.java

public static void main(String[] args) {

    String simpleXML = "<?xml version=\"1.0\" encoding=\"UTF-8\"?><person><name>Bob</name></person>";
    InputSource inputSource = new InputSource(new StringReader(simpleXML));
    XPath xpath = XPathFactory.newInstance().newXPath();

    try {//from   w  w  w .j  a v a2s  . co  m
        String name = xpath.evaluate("//name", inputSource);
        System.out.println(name);
    } catch (XPathExpressionException e) {
        System.out.println(e.getMessage());
    }
}

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  v a  2  s.c  om
}

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 {
    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 a v  a 2s .  c  om
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    String source = "<p xmlns='http://www.java2s.com/nfe' versao='2.00'></p>";

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

    NamespaceContext context = new NamespaceContext() {
        String PREFIX = "nfe";
        String URI = "http://www.java2s.com/nfe";

        @Override//from w  w w.j  a v  a2 s  .  c  om
        public String getNamespaceURI(String prefix) {
            return (PREFIX.equals(prefix)) ? URI : XMLConstants.NULL_NS_URI;
        }

        @Override
        public String getPrefix(String namespaceUri) {
            return (URI.equals(namespaceUri)) ? PREFIX : XMLConstants.DEFAULT_NS_PREFIX;
        }

        @Override
        public Iterator getPrefixes(String namespaceUri) {
            return Collections.singletonList(this.getPrefix(namespaceUri)).iterator();
        }
    };
    xPath.setNamespaceContext(context);
    InputSource inputSource = new InputSource(new StringReader(source));
    String versao = xPath.evaluate("//nfe:p/@versao", inputSource);
    System.out.println(versao.toString());
}

From source file:Main.java

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

    XPathFactory xpf = XPathFactory.newInstance();
    XPath xpath = xpf.newXPath();
    String health = (String) xpath.evaluate("/game/health", xml, XPathConstants.STRING);
    System.out.println(health);/*from  w  ww. jav a  2  s .  co  m*/
}

From source file:MainClass.java

public static void main(String[] args) throws Exception {
    XPathFactory factory = XPathFactory.newInstance();
    XPath xPath = factory.newXPath();
    SimpleNamespaceContext nsContext = new SimpleNamespaceContext();
    nsContext.addNamespace("s", "uri:test:schedule");
    xPath.setNamespaceContext(nsContext);

    String result = xPath.evaluate("/s:schedule/@name", new InputSource(new FileReader("t.xml")));
    System.out.println(result);//from  w w w.  j  a  va  2s.c  om
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    DocumentBuilderFactory domFactory = DocumentBuilderFactory.newInstance();
    DocumentBuilder builder = domFactory.newDocumentBuilder();
    Document dDoc = builder.parse("input.xml");

    XPath xPath = XPathFactory.newInstance().newXPath();
    String string = (String) xPath.evaluate("/documents/document/element[@name='doctype']/value", dDoc,
            XPathConstants.STRING);
    System.out.println(string);/*from   w w  w .  j  av a  2 s. co m*/
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    XPath xpath = XPathFactory.newInstance().newXPath();
    InputSource xml = new InputSource(new StringReader(XML));
    String result = (String) xpath.evaluate("//@Build-Label", xml, XPathConstants.STRING);
    System.out.println(result);/*from   w  w w . j  a v  a2s  . c om*/
}