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XPathParser.java
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XPathParser.java
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import javax.xml.xpath.XPath;
import javax.xml.xpath.XPathConstants;
import javax.xml.xpath.XPathFactory;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.InputSource;
/*
* http://docs.oracle.com/javase/7/docs/api/javax/xml/xpath/package-summary.html
*/
public class XPathParser {
public static void main(String [] args) throws Exception {
if (args.length < 1) {
System.out.println("Usage:");
System.out.println("java XPathParser <XML File>");
System.exit(0);
}
String fileName = args[0];
XPath xpath = XPathFactory.newInstance().newXPath();
String expression = "/cs378/assignments/assignment";
InputSource inputSource = new InputSource(fileName);
NodeList nodes = (NodeList) xpath.evaluate(expression, inputSource, XPathConstants.NODESET);
for(int i=0; i<nodes.getLength(); i++) {
Node n = nodes.item(i);
System.out.println("Node value:" + n.getTextContent());
}
}
}