Java XMLReader類代碼示例

import org.xml.sax.XMLReader; //導入依賴的package包/類
/**
 * Test newTransformerHandler with a Template Handler.
 *
 * @throws Exception If any errors occur.
 */
public void testcase08() throws Exception {
    String outputFile = USER_DIR + "saxtf008.out";
    String goldFile = GOLDEN_DIR + "saxtf008GF.out";

    try (FileOutputStream fos = new FileOutputStream(outputFile)) {
        XMLReader reader = XMLReaderFactory.createXMLReader();
        SAXTransformerFactory saxTFactory
                = (SAXTransformerFactory)TransformerFactory.newInstance();

        TemplatesHandler thandler = saxTFactory.newTemplatesHandler();
        reader.setContentHandler(thandler);
        reader.parse(XSLT_FILE);
        TransformerHandler tfhandler
                = saxTFactory.newTransformerHandler(thandler.getTemplates());

        Result result = new StreamResult(fos);
        tfhandler.setResult(result);

        reader.setContentHandler(tfhandler);
        reader.parse(XML_FILE);
    }
    assertTrue(compareWithGold(goldFile, outputFile));
}
 

import org.xml.sax.XMLReader; //導入依賴的package包/類
private static SAXParser getSAXParser(
    boolean validating,
    JspDocumentParser jspDocParser)
    throws Exception {

    SAXParserFactory factory = SAXParserFactory.newInstance();
    factory.setNamespaceAware(true);

    // Preserve xmlns attributes
    factory.setFeature(
        "http://xml.org/sax/features/namespace-prefixes",
        true);
    factory.setValidating(validating);
    //factory.setFeature(
    //    "http://xml.org/sax/features/validation",
    //    validating);
    
    // Configure the parser
    SAXParser saxParser = factory.newSAXParser();
    XMLReader xmlReader = saxParser.getXMLReader();
    xmlReader.setProperty(LEXICAL_HANDLER_PROPERTY, jspDocParser);
    xmlReader.setErrorHandler(jspDocParser);

    return saxParser;
}
 

import org.xml.sax.XMLReader; //導入依賴的package包/類
@SuppressWarnings("unchecked")
private <T> List<T> processSheet(StylesTable styles, ReadOnlySharedStringsTable readOnlySharedStringsTable,
                                 Class<T> type, InputStream sheetInputStream) {

    DataFormatter formatter = new DataFormatter();
    InputSource sheetSource = new InputSource(sheetInputStream);
    try {
        XMLReader sheetParser = SAXHelper.newXMLReader();
        PoijiHandler poijiHandler = new PoijiHandler(type, options);
        ContentHandler contentHandler =
                new XSSFSheetXMLHandler(styles, null, readOnlySharedStringsTable, poijiHandler, formatter, false);
        sheetParser.setContentHandler(contentHandler);
        sheetParser.parse(sheetSource);
        return poijiHandler.getDataset();
    } catch (ParserConfigurationException | SAXException | IOException e) {
        throw new PoijiException("Problem occurred while reading data", e);
    }
}
 

import org.xml.sax.XMLReader; //導入依賴的package包/類
public static RssFeed read(InputStream stream) throws SAXException, IOException {

        try {

            SAXParserFactory factory = SAXParserFactory.newInstance();
            SAXParser parser = factory.newSAXParser();
            XMLReader reader = parser.getXMLReader();
            RssHandler handler = new RssHandler();
            InputSource input = new InputSource(stream);

            reader.setContentHandler(handler);
            reader.parse(input);

            return handler.getResult();

        } catch (ParserConfigurationException e) {
            throw new SAXException();
        }

    }
 

import org.xml.sax.XMLReader; //導入依賴的package包/類
public static SyntaxScheme load(Font baseFont, InputStream in)
		throws IOException {
	SyntaxSchemeLoader parser = null;
	try {
		XMLReader reader = XMLReaderFactory.createXMLReader();
		parser = new SyntaxSchemeLoader(baseFont);
		parser.baseFont = baseFont;
		reader.setContentHandler(parser);
		InputSource is = new InputSource(in);
		is.setEncoding("UTF-8");
		reader.parse(is);
	} catch (SAXException se) {
		throw new IOException(se.toString());
	}
	return parser.scheme;
}
 

import org.xml.sax.XMLReader; //導入依賴的package包/類
@NonNull
public static RepoDetails getFromFile(InputStream inputStream, int pushRequests) {
    try {
        SAXParserFactory factory = SAXParserFactory.newInstance();
        factory.setNamespaceAware(true);
        SAXParser parser = factory.newSAXParser();
        XMLReader reader = parser.getXMLReader();
        RepoDetails repoDetails = new RepoDetails();
        MockRepo mockRepo = new MockRepo(100, pushRequests);
        RepoXMLHandler handler = new RepoXMLHandler(mockRepo, repoDetails);
        reader.setContentHandler(handler);
        InputSource is = new InputSource(new BufferedInputStream(inputStream));
        reader.parse(is);
        return repoDetails;
    } catch (ParserConfigurationException | SAXException | IOException e) {
        e.printStackTrace();
        fail();

        // Satisfies the compiler, but fail() will always throw a runtime exception so we never
        // reach this return statement.
        return null;
    }
}
 

import org.xml.sax.XMLReader; //導入依賴的package包/類
private XMLReader getXMLReader() throws Exception {
    SAXParser parser = spf.newSAXParser();
    parser.setProperty(JAXP_SCHEMA_LANGUAGE, W3C_XML_SCHEMA_NS_URI);
    parser.setProperty(JAXP_SCHEMA_SOURCE, "catalog.xsd");
    XMLReader catparser = parser.getXMLReader();
    catparser.setErrorHandler(new CatalogErrorHandler());
    return catparser;
}
 

import org.xml.sax.XMLReader; //導入依賴的package包/類
public void xsltprocess(String[] args) throws TransformerException, TransformerConfigurationException, FileNotFoundException, IOException {
    // 1. Instantiate a TransformerFactory.
    SAXTransformerFactory tFactory = (SAXTransformerFactory) TransformerFactory.newInstance();
    
    // 2. Use the TransformerFactory to process the stylesheet Source and
    //    generate a Transformer.
    InputStream is = getClass().getResourceAsStream("xmg2pol.xsl");
    Transformer transformer = tFactory.newTransformer (new StreamSource(is));
    transformer.setOutputProperty(OutputKeys.DOCTYPE_SYSTEM, "polarities.dtd,xml");
    transformer.setOutputProperty(OutputKeys.ENCODING, "utf-8");
    
    // 3. Use the Transformer to transform an XML Source and send the
    //    output to a Result object.
    try {
	    String input = args[0];
	    String output= args[1];
	    SAXSource saxs = new SAXSource(new InputSource(input));
		XMLReader saxReader = XMLReaderFactory.createXMLReader("org.apache.xerces.parsers.SAXParser");
		saxReader.setEntityResolver(new MyEntityResolver());
		saxs.setXMLReader(saxReader);
	    transformer.transform(saxs, new StreamResult(new OutputStreamWriter(new FileOutputStream(output), "utf-8")));
   	} catch (Exception e) {
   		e.printStackTrace();
   	}
}
 

import org.xml.sax.XMLReader; //導入依賴的package包/類
/**
 * Unit test for contentHandler setter/getter.
 *
 * @throws Exception If any errors occur.
 */
@Test
public void testcase12() throws Exception {
    String outputFile = USER_DIR + "saxtf012.out";
    String goldFile = GOLDEN_DIR + "saxtf012GF.out";
    // The transformer will use a SAX parser as it's reader.
    XMLReader reader = XMLReaderFactory.createXMLReader();

    InputSource is = new InputSource(new FileInputStream(XSLT_FILE));
    SAXSource saxSource = new SAXSource();
    saxSource.setInputSource(is);

    SAXTransformerFactory saxTFactory = (SAXTransformerFactory)TransformerFactory.newInstance();
    XMLFilter filter = saxTFactory.newXMLFilter(saxSource);

    filter.setParent(reader);
    filter.setContentHandler(new MyContentHandler(outputFile));

    // Now, when you call transformer.parse, it will set itself as
    // the content handler for the parser object (it's "parent"), and
    // will then call the parse method on the parser.
    filter.parse(new InputSource(XML_FILE));
    assertTrue(compareWithGold(goldFile, outputFile));
}
 

import org.xml.sax.XMLReader; //導入依賴的package包/類
private void processAll(OPCPackage pkg)
		throws IOException, OpenXML4JException, InvalidFormatException, SAXException {
	XSSFReader xssfReader = new XSSFReader(pkg);
	mStylesTable = xssfReader.getStylesTable();
	SharedStringsTable sst = xssfReader.getSharedStringsTable();
	XMLReader parser = this.fetchSheetParser(sst);
	Iterator<InputStream> sheets = xssfReader.getSheetsData();
	while (sheets.hasNext()) {
		mCurrentRowIndex = 0;
		mSheetIndex++;
		InputStream sheet = sheets.next();
		InputSource sheetSource = new InputSource(sheet);
		parser.parse(sheetSource);
		sheet.close();
	}
	pkg.close();
}
 

import org.xml.sax.XMLReader; //導入依賴的package包/類
private Map<String,Map<String,List<Map<String,String>>>> getItems () {
    if (items == null)
        try {
            XMLReader reader = XMLUtil.createXMLReader ();
            Handler handler = new Handler ();
            reader.setEntityResolver (handler);
            reader.setContentHandler (handler);
            ClassLoader loader = (ClassLoader) Lookup.getDefault ().
                lookup (ClassLoader.class);
            InputStream is = loader.getResourceAsStream (resourceName);
            try {
                reader.parse (new InputSource (is));
            } finally {
                is.close ();
            }
            items = handler.result;
        } catch (Exception ex) {
            ErrorManager.getDefault ().notify (ex);
            items = Collections.<String,Map<String,List<Map<String,String>>>> emptyMap ();
        }
    return items;
}
 

import org.xml.sax.XMLReader; //導入依賴的package包/類
@Override
public GraphDocument parse() throws IOException {
    if (monitor != null) {
        monitor.setState("Starting parsing");
    }
    try {
        XMLReader reader = createReader();
        reader.setContentHandler(new XMLParser(xmlDocument, monitor));
        reader.parse(new InputSource(Channels.newInputStream(channel)));
    } catch (SAXException ex) {
        if (!(ex instanceof SAXParseException) || !"XML document structures must start and end within the same entity.".equals(ex.getMessage())) {
            throw new IOException(ex);
        }
    }
    if (monitor != null) {
        monitor.setState("Finished parsing");
    }
    return graphDocument;
}
 

import org.xml.sax.XMLReader; //導入依賴的package包/類
/**
 * Namespace processing is enabled. Hence namespace-prefix is
 * expected to be automatically off. So it is a True-False combination.
 * The test is to test XMLReader with these conditions.
 *
 * @throws Exception If any errors occur.
 */
public void testWithTrueFalse() throws Exception {
    String outputFile = USER_DIR + "XRNSTableTF.out";
    String goldFile = GOLDEN_DIR + "NSTableTFGF.out";

    SAXParserFactory spf = SAXParserFactory.newInstance();
    spf.setNamespaceAware(true);
    SAXParser saxParser = spf.newSAXParser();
    XMLReader xmlReader = saxParser.getXMLReader();

    try (FileInputStream fis = new FileInputStream(xmlFile);
        MyNSContentHandler handler = new MyNSContentHandler(outputFile)) {
        xmlReader.setContentHandler(handler);
        xmlReader.parse(new InputSource(fis));
    }
    assertTrue(compareWithGold(goldFile, outputFile));
}
 

import org.xml.sax.XMLReader; //導入依賴的package包/類
@Test(dataProvider = "xml-data")
public void testSAX(String xml, int chunkSize, int numOfChunks, boolean withinLimit) throws Exception {
    SAXParserFactory spf = SAXParserFactory.newInstance();
    XMLReader reader = spf.newSAXParser().getXMLReader();
    MyHandler handler = new MyHandler(chunkSize);
    reader.setContentHandler(handler);
    reader.setProperty("http://xml.org/sax/properties/lexical-handler", handler);

    if (chunkSize > 0) {
        reader.setProperty(CDATA_CHUNK_SIZE, chunkSize);
    }

    reader.parse(new InputSource(new StringReader(xml)));
    System.out.println("CData num of chunks:" + handler.getNumOfCDataChunks());
    System.out.println("CData size within limit:" + handler.chunkSizeWithinLimit());
    Assert.assertEquals(handler.getNumOfCDataChunks(), numOfChunks);
    Assert.assertEquals(handler.chunkSizeWithinLimit(), withinLimit);

}
 

import org.xml.sax.XMLReader; //導入依賴的package包/類
/**
 * Content event handler visit all nodes to print to output file.
 *
 * @throws Exception If any errors occur.
 */
@Test
public void testcase01() throws Exception {
    String outputFile = USER_DIR + "Content.out";
    String goldFile = GOLDEN_DIR + "ContentGF.out";
    String xmlFile = XML_DIR + "namespace1.xml";

    try(FileInputStream instream = new FileInputStream(xmlFile);
            MyContentHandler cHandler = new MyContentHandler(outputFile)) {
        SAXParserFactory spf = SAXParserFactory.newInstance();
        spf.setNamespaceAware(true);
        XMLReader xmlReader = spf.newSAXParser().getXMLReader();
        xmlReader.setContentHandler(cHandler);
        xmlReader.parse(new InputSource(instream));
    }
    assertTrue(compareWithGold(goldFile, outputFile));
}