好容易能运行的XQuery示例（Java+Saxon）

 

package testUnit;

import java.io.IOException;
//import java.util.Iterator;
//import java.util.List;
import java.util.Properties;

import javax.xml.parsers.*;
import javax.xml.transform.*;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;

import org.w3c.dom.*;
import org.xml.sax.SAXException;

import net.sf.saxon.dom.*;
//import net.sf.saxon.om.NodeInfo;
import net.sf.saxon.query.*;
import net.sf.saxon.trans.XPathException;
import net.sf.saxon.*;

public class XMLTest {
    public static void main(String[] args) {
        query();
        /**//*
         * Configuration c = new Configuration(); StaticQueryContext qp = new
         * StaticQueryContext(c); XQueryExpression xe = qp.compileQuery("");
         * DynamicQueryContext dqc = new DynamicQueryContext(c);
         * dqc.setContextNode(new DocumentWrapper(tidyDOM, url, c)); List result =
         * xe.evaluate(dqc);
         */
    }

    @SuppressWarnings("deprecation")
    public static void query() {
        String query = "<ul>\n"
                + "{\n"
                + "for $b in //bib/book\n"
                + "where $b/publisher = \"Addison-Wesley\" and $b/@year > 1992 "
                + "return\n" + "<li>{ data($b/title) }</li>\n" + "}\n"
                + "</ul>";
        Document doc = input("test.xml");
        Configuration c = new Configuration();
        StaticQueryContext qp = new StaticQueryContext(c);
        XQueryExpression xe;
        try {
            xe = qp.compileQuery(query);
            DynamicQueryContext dqc = new DynamicQueryContext(c);
            dqc.setContextNode(new DocumentWrapper(doc, null, c));
            
            final Properties props = new Properties();
            props.setProperty(OutputKeys.METHOD, "xml");
            props.setProperty(OutputKeys.INDENT, "yes");
            xe.run(dqc, new StreamResult(System.out), props);
        } catch (XPathException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }

    public static Document input(String filename) {
        DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
        DocumentBuilder builder;

        Document doc = null;
        try {
            builder = factory.newDocumentBuilder();
            doc = builder.parse(filename);
        } catch (ParserConfigurationException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (SAXException e1) {
            // TODO Auto-generated catch block
            e1.printStackTrace();
        } catch (IOException e1) {
            // TODO Auto-generated catch block
            e1.printStackTrace();
        }
        doc.normalize();
        return doc;
    }

    public static void output(Document _doc) {
        TransformerFactory tFactory = TransformerFactory.newInstance();
        Transformer transformer;
        try {
            transformer = tFactory.newTransformer();
            Properties properties = transformer.getOutputProperties();
            properties.setProperty(OutputKeys.INDENT, "yes");
            properties.setProperty(OutputKeys.ENCODING, "GB2312");
            properties.setProperty(OutputKeys.METHOD, "xml");
            properties.setProperty(OutputKeys.VERSION, "1.0");
            transformer.setOutputProperties(properties);
            DOMSource source = new DOMSource(_doc);
            StreamResult result = new StreamResult(System.out);
            transformer.transform(source, result);
        } catch (TransformerConfigurationException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (TransformerException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }
}

test.xml内容：

<bib>
<book year="1994">
<title>TCP/IP Illustrated</title>
<author><last>Stevens</last><first>W.</first></author>
<publisher>Addison-Wesley</publisher>
<price>65.95</price>
</book>
<book year="1992">
<title>Advanced Programming in the Unix environment</title>
<author><last>Stevens</last><first>W.</first></author>
<publisher>Addison-Wesley</publisher>
<price>65.95</price>
</book>
<book year="2000">
<title>Data on the Web</title>
<author><last>Abiteboul</last><first>Serge</first></author>
<author><last>Buneman</last><first>Peter</first></author>
<author><last>Suciu</last><first>Dan</first></author>
</book>
</bib>

输出：

<?xml version="1.0" encoding="UTF-8"?>
<ul>
   <li>TCP/IP Illustrated</li>
</ul>

程序来源于  成功运行第一个XQuery表达式
修改了一处：1992后面加了一个空格