org.dom4j.io.XMLWriter Java Examples

@Override
public byte[] exportXml() throws IOException {
    Lock lock = currentSolution().getLock().readLock();
    lock.lock();
    try {
        boolean anonymize = ApplicationProperty.SolverXMLExportNames.isFalse();
        boolean idconv = ApplicationProperty.SolverXMLExportConvertIds.isTrue();

        ByteArrayOutputStream ret = new ByteArrayOutputStream();
        
        Document document = createCurrentSolutionBackup(anonymize, idconv);
        
        if (ApplicationProperty.SolverXMLExportConfiguration.isTrue())
        	saveProperties(document);
        
        (new XMLWriter(ret, OutputFormat.createPrettyPrint())).write(document);
        
        ret.flush(); ret.close();

        return ret.toByteArray();
    } finally {
    	lock.unlock();
    }
}
 

private static QTIDocument exportAndImportToQTIFormat(QTIDocument qtiDocOrig) throws IOException {
    Document qtiXmlDoc = qtiDocOrig.getDocument();
    OutputFormat outformat = OutputFormat.createPrettyPrint();

    String fileName = qtiDocOrig.getAssessment().getTitle() + "QTIFormat.xml";
    OutputStreamWriter qtiXmlOutput = new OutputStreamWriter(new FileOutputStream(new File(TEMP_DIR, fileName)), Charset.forName("UTF-8"));
    XMLWriter writer = new XMLWriter(qtiXmlOutput, outformat);
    writer.write(qtiXmlDoc);
    writer.flush();
    writer.close();

    XMLParser xmlParser = new XMLParser(new IMSEntityResolver());
    Document doc = xmlParser.parse(new FileInputStream(new File(TEMP_DIR, fileName)), true);
    ParserManager parser = new ParserManager();
    QTIDocument qtiDocRestored = (QTIDocument) parser.parse(doc);
    return qtiDocRestored;
}
 

private static File createPernsistenceXml(List<Class<?>> classes, File directory) throws Exception {
	Document document = DocumentHelper.createDocument();
	Element persistence = document.addElement("persistence", "http://java.sun.com/xml/ns/persistence");
	persistence.addAttribute(QName.get("schemaLocation", "xsi", "http://www.w3.org/2001/XMLSchema-instance"),
			"http://java.sun.com/xml/ns/persistence  http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd");
	persistence.addAttribute("version", "2.0");
	Element unit = persistence.addElement("persistence-unit");
	unit.addAttribute("name", "enhance");
	for (Class<?> o : classes) {
		Element element = unit.addElement("class");
		element.addText(o.getCanonicalName());
	}
	OutputFormat format = OutputFormat.createPrettyPrint();
	format.setEncoding("UTF-8");
	File file = new File(directory, "persistence.xml");
	XMLWriter writer = new XMLWriter(new FileWriter(file), format);
	writer.write(document);
	writer.close();
	return file;
}
 

/**
 * 生成XML 并打印打控制台
 *
 * @param name 文件名称
 * @param call 元素添加方法
 */
public static void genXml(String name, Consumer<Document> call) {
    Document doc = DocumentHelper.createDocument();
    String filePath = TEST_DEST + File.separator + name + ".xml";
    try (FileOutputStream out = new FileOutputStream(filePath)) {
        call.accept(doc);

        // 格式化打印到控制台
        XMLWriter writerToSout = new XMLWriter(System.out, FORMAT);
        writerToSout.write(doc);

        // 打印打到文件
        XMLWriter writeToFile = new XMLWriter(out, FORMAT);
        writeToFile.write(doc);
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
}
 

public static String toString(final Element el, final boolean prettyFormat)
{
  if (el == null) {
    return "";
  }
  final StringWriter out = new StringWriter();
  final OutputFormat format = new OutputFormat();
  if (prettyFormat == true) {
    format.setNewlines(true);
    format.setIndentSize(2);
  }
  final XMLWriter writer = new XMLWriter(out, format);
  String result = null;
  try {
    writer.write(el);
    result = out.toString();
    writer.close();
  } catch (final IOException ex) {
    log.error(ex.getMessage(), ex);
  }
  return result;
}
 

public void doWork(XmlPullParser reader, XMLWriter writer)
	throws Exception
{
	// Deal with the contents of the tag
	int eventType = reader.getEventType();
	while (eventType != XmlPullParser.END_TAG) 
       {
		eventType = reader.next();
		if (eventType == XmlPullParser.START_TAG) 
		{
			ImportFileUpdater.this.outputCurrentElement(reader, writer, new OutputChildren());
		}
		else if (eventType == XmlPullParser.TEXT)
		{
			// Write the text to the output file
			writer.write(reader.getText());
		}
       }			
}
 

@Override
public String toXml() {
    StringWriter out = new StringWriter();
    XMLWriter writer = new XMLWriter(out, OutputFormat.createCompactFormat());
    try {
        out.write("<");
        writer.write(element.getQualifiedName());
        for (Attribute attr : (List<Attribute>) element.attributes()) {
            writer.write(attr);
        }
        writer.write(Namespace.get(this.element.getNamespacePrefix(), this.element.getNamespaceURI()));
        writer.write(Namespace.get("jabber:client"));
        out.write(">");
    } catch (IOException ex) {
        log.info("Error writing XML", ex);
    }
    return out.toString();
}
 

public static boolean writeToXML(Document document, String tempPath) {
	try {
		// 使用XMLWriter写入，可以控制格式，经过调试，发现这种方式会出现乱码，主要是因为Eclipse中xml文件和JFrame中文件编码不一致造成的
		OutputFormat format = OutputFormat.createPrettyPrint();
		format.setEncoding(EncodingUtil.CHARSET_UTF8);
		// format.setSuppressDeclaration(true);//这句话会压制xml文件的声明，如果为true，就不打印出声明语句
		format.setIndent(true);// 设置缩进
		format.setIndent("	");// 空行方式缩进
		format.setNewlines(true);// 设置换行
		XMLWriter writer = new XMLWriter(new FileWriterWithEncoding(new File(tempPath), EncodingUtil.CHARSET_UTF8), format);
		writer.write(document);
		writer.close();
	} catch (IOException e) {
		e.printStackTrace();
		MyLogger.logger.error("写入xml文件出错！");
		return false;
	}
	return true;
}
 

/**
 * Start the transfer report
 */
public void startTransferReport(String encoding, Writer writer) throws SAXException
{
    OutputFormat format = OutputFormat.createPrettyPrint();
    format.setNewLineAfterDeclaration(false);
    format.setIndentSize(3);
    format.setEncoding(encoding);
    
    this.writer = new XMLWriter(writer, format);
    this.writer.startDocument();
    
    this.writer.startPrefixMapping(PREFIX, TransferReportModel2.TRANSFER_REPORT_MODEL_2_0_URI);

    // Start Transfer Manifest  // uri, name, prefix
    this.writer.startElement(TransferReportModel2.TRANSFER_REPORT_MODEL_2_0_URI, TransferReportModel.LOCALNAME_TRANSFER_REPORT,  PREFIX + ":" + TransferReportModel.LOCALNAME_TRANSFER_REPORT, EMPTY_ATTRIBUTES);
}
 

@Override
public File persistConf() throws IOException {
	final XMLClaferParser parser = new XMLClaferParser();
	Document configInXMLFormat = parser.displayInstanceValues(instance, this.options);
	if (configInXMLFormat != null) {
		final OutputFormat format = OutputFormat.createPrettyPrint();
		final XMLWriter writer = new XMLWriter(new FileWriter(pathOnDisk), format);
		writer.write(configInXMLFormat);
		writer.close();
		configInXMLFormat = null;

		return new File(pathOnDisk);
	} else {
		Activator.getDefault().logError(Constants.NO_XML_INSTANCE_FILE_TO_WRITE);
	}
	return null;

}
 

/**
 * 修改bools.xml文件内容
 *
 * @param file  bools文件
 * @param bools 修改的值列表
 */
private void updateBools(File file, List<Bools> bools) {
    try {
        if (bools == null || bools.isEmpty()) {
            return;
        }
        Document document = new SAXReader().read(file);
        List<Element> elements = document.getRootElement().elements();
        elements.forEach(element -> {
            final String name = element.attribute("name").getValue();
            bools.forEach(s -> {
                if (s.getName().equals(name)) {
                    element.setText(s.getValue());
                    callback("修改 bools.xml name='" + name + "' value='" + s.getValue() + "'");
                }
            });
        });
        XMLWriter writer = new XMLWriter(new FileOutputStream(file));
        writer.write(document);
        writer.close();
    } catch (Exception e) {
        e.printStackTrace();
    }
}
 

/**
 * writes the manifest.xml
 */
void writeToFile() {
    final String filename = "imsmanifest.xml";
    final OutputFormat format = OutputFormat.createPrettyPrint();

    try {
        VFSLeaf outFile;
        // file may exist
        outFile = (VFSLeaf) cpcore.getRootDir().resolve("/" + filename);
        if (outFile == null) {
            // if not, create it
            outFile = cpcore.getRootDir().createChildLeaf("/" + filename);
        }
        final DefaultDocument manifestDocument = cpcore.buildDocument();
        final XMLWriter writer = new XMLWriter(outFile.getOutputStream(false), format);
        writer.write(manifestDocument);
    } catch (final Exception e) {
        log.error("imsmanifest for ores " + ores.getResourceableId() + "couldn't be written to file.", e);
        throw new OLATRuntimeException(CPOrganizations.class, "Error writing imsmanifest-file", new IOException());
    }
}
 

/**
 * Output the supported lock types XML element
 * 
 * @param xml XMLWriter
 */
protected void writeLockTypes(XMLWriter xml)
{
    try
    {
        AttributesImpl nullAttr = getDAVHelper().getNullAttributes();

        xml.startElement(WebDAV.DAV_NS, WebDAV.XML_SUPPORTED_LOCK, WebDAV.XML_NS_SUPPORTED_LOCK, nullAttr);

        // Output exclusive lock
        // Shared locks are not supported, as they cannot be supported by the LockService (relevant to ALF-16449).
        writeLock(xml, WebDAV.XML_NS_EXCLUSIVE);

        xml.endElement(WebDAV.DAV_NS, WebDAV.XML_SUPPORTED_LOCK, WebDAV.XML_NS_SUPPORTED_LOCK);
    }
    catch (Exception ex)
    {
        throw new AlfrescoRuntimeException("XML write error", ex);
    }
}
 

/**
 * Generates the error tag
 * 
 * @param xml XMLWriter
 */
protected void generateError(XMLWriter xml)
{
    try
    {
        // Output the start of the error element
        Attributes nullAttr = getDAVHelper().getNullAttributes();

        xml.startElement(WebDAV.DAV_NS, WebDAV.XML_ERROR, WebDAV.XML_NS_ERROR, nullAttr);
        // Output error
        xml.write(DocumentHelper.createElement(WebDAV.XML_NS_CANNOT_MODIFY_PROTECTED_PROPERTY));

        xml.endElement(WebDAV.DAV_NS, WebDAV.XML_ERROR, WebDAV.XML_NS_ERROR);
    }
    catch (Exception ex)
    {
        // Convert to a runtime exception
        throw new AlfrescoRuntimeException("XML processing error", ex);
    }
}
 

@Override
public String buildXml(Report report) {
    try {
        Document document = DocumentFactory.getInstance().createDocument();
        Element root = document.addElement("report");

        root.addAttribute("name", report.getName());
        writeTemplates(report, root);
        writeInputParameters(report, root);
        writeValueFormats(report, root);
        writeRootBand(report, root);

        StringWriter stringWriter = new StringWriter();
        new XMLWriter(stringWriter, OutputFormat.createPrettyPrint()).write(document);
        return stringWriter.toString();
    } catch (IOException e) {
        throw new ReportingException(e);
    }
}
 

/**
 * writes the manifest.xml
 */
void writeToFile() {
    final String filename = "imsmanifest.xml";
    final OutputFormat format = OutputFormat.createPrettyPrint();

    try {
        VFSLeaf outFile;
        // file may exist
        outFile = (VFSLeaf) cpcore.getRootDir().resolve("/" + filename);
        if (outFile == null) {
            // if not, create it
            outFile = cpcore.getRootDir().createChildLeaf("/" + filename);
        }
        final DefaultDocument manifestDocument = cpcore.buildDocument();
        final XMLWriter writer = new XMLWriter(outFile.getOutputStream(false), format);
        writer.write(manifestDocument);
    } catch (final Exception e) {
        log.error("imsmanifest for ores " + ores.getResourceableId() + "couldn't be written to file.", e);
        throw new OLATRuntimeException(CPOrganizations.class, "Error writing imsmanifest-file", new IOException());
    }
}
 

public void fileSource(HttpServletRequest req, HttpServletResponse resp) throws Exception {
	String path=req.getParameter("path");
	path=Utils.decodeURL(path);
	InputStream inputStream=repositoryService.readFile(path,null);
	String content=IOUtils.toString(inputStream,"utf-8");
	inputStream.close();
	String xml=null;
	try{
		Document doc=DocumentHelper.parseText(content);
		OutputFormat format=OutputFormat.createPrettyPrint();
		StringWriter out=new StringWriter();
		XMLWriter writer=new XMLWriter(out, format);
		writer.write(doc);
		xml=out.toString();
	}catch(Exception ex){
		xml=content;
	}
	Map<String,Object> result=new HashMap<String,Object>();
	result.put("content", xml);
	writeObjectToJson(resp, result);
}
 

private void write() {
    double pressLat = viewer.getLatitude(press.y);
    double pressLon = viewer.getLongitude(press.x);
    double releaseLat = viewer.getLatitude(release.y);
    double releaseLon = viewer.getLongitude(release.x);
    try {
        OSMMap newMap = new OSMMap(map,
                                   Math.min(pressLat, releaseLat),
                                   Math.min(pressLon, releaseLon),
                                   Math.max(pressLat, releaseLat),
                                   Math.max(pressLon, releaseLon));
        Document d = newMap.toXML();
        XMLWriter writer = new XMLWriter(out, OutputFormat.createPrettyPrint());
        writer.write(d);
        writer.flush();
        writer.close();
        System.out.println("Wrote map");
    }
    // CHECKSTYLE:OFF:IllegalCatch
    catch (Exception ex) {
        ex.printStackTrace();
    }
    // CHECKSTYLE:ON:IllegalCatch
}
 

@Override
public byte[] backupXml() {
	java.util.concurrent.locks.Lock lock = currentSolution().getLock().readLock();
       lock.lock();
       try {
           ByteArrayOutputStream ret = new ByteArrayOutputStream();
           GZIPOutputStream gz = new GZIPOutputStream(ret);
           
           Document document = createCurrentSolutionBackup(false, false);
           saveProperties(document);
           
           new XMLWriter(gz, OutputFormat.createCompactFormat()).write(document);
           
           gz.flush(); gz.close();

           return ret.toByteArray();
       } catch (Exception e) {
           sLog.error(e.getMessage(),e);
           return null;
       } finally {
       	lock.unlock();
       }
}
 

public boolean initializeDasSetXml() throws Exception {
    Document document = DocumentHelper.createDocument();
    Element root = document.addElement(DATA_SET_ROOT).addAttribute("name", DAS_SET_APPID);
    root.addElement("databaseSets").addElement("databaseSet")
            .addAttribute("name", DATA_SET_BASE).addAttribute("provider", "mysqlProvider")
            .addElement("add")
            .addAttribute("name", DATA_BASE)
            .addAttribute("connectionString", DATA_BASE)
            .addAttribute("databaseType", "Master")
            .addAttribute("sharding", "1");
    Element connectionLocator =  root.addElement("ConnectionLocator");
    connectionLocator.addElement("locator").addText("com.ppdai.das.core.DefaultConnectionLocator");
    connectionLocator.addElement("settings").addElement("dataSourceConfigureProvider").addText("com.ppdai.das.console.config.init.ConsoleDataSourceConfigureProvider");
    try (FileWriter fileWriter = new FileWriter(getDasXmlPath())) {
        XMLWriter writer = new XMLWriter(fileWriter);
        writer.write(document);
        writer.close();
    }
    return true;
}
 

public static void main(String args[]){

		Namespace rootNs = new Namespace("", "uri:oozie:workflow:0.4"); // root namespace uri
		QName rootQName = QName.get("workflow-app", rootNs); // your root element's name
		Element workflow = DocumentHelper.createElement(rootQName);
		Document doc = DocumentHelper.createDocument(workflow);
		
		workflow.addAttribute("name", "test");
		Element test = workflow.addElement("test");
		test.addText("hello");
				OutputFormat outputFormat = OutputFormat.createPrettyPrint();
				outputFormat.setEncoding("UTF-8");
				outputFormat.setIndent(true); 
				outputFormat.setIndent("    "); 
				outputFormat.setNewlines(true); 
		try {
			StringWriter stringWriter = new StringWriter();
			XMLWriter xmlWriter = new XMLWriter(stringWriter);
			xmlWriter.write(doc);
			xmlWriter.close();
			System.out.println( doc.asXML() );
			System.out.println( stringWriter.toString().trim());

		} catch (Exception ex) {
			ex.printStackTrace();
		}
	}
 

/**
 * Generates the required response XML for the current node
 * 
 * @param xml XMLWriter
 * @param nodeInfo FileInfo
 * @param path String
 */
protected void generateResponseForNode(XMLWriter xml, FileInfo nodeInfo, String path) throws Exception
{
    boolean isFolder = nodeInfo.isFolder();
    
    // Output the response block for the current node
    xml.startElement(
            WebDAV.DAV_NS,
            WebDAV.XML_RESPONSE,
            WebDAV.XML_NS_RESPONSE,
            getDAVHelper().getNullAttributes());

    // Build the href string for the current node
    String strHRef = getURLForPath(m_request, path, isFolder);

    xml.startElement(WebDAV.DAV_NS, WebDAV.XML_HREF, WebDAV.XML_NS_HREF, getDAVHelper().getNullAttributes());
    xml.write(strHRef);
    xml.endElement(WebDAV.DAV_NS, WebDAV.XML_HREF, WebDAV.XML_NS_HREF);

    switch (m_mode)
    {
    case GET_NAMED_PROPS:
        generateNamedPropertiesResponse(xml, nodeInfo, isFolder);
        break;
    case GET_ALL_PROPS:
        generateAllPropertiesResponse(xml, nodeInfo, isFolder);
        break;
    case FIND_PROPS:
        generateFindPropertiesResponse(xml, nodeInfo, isFolder);
        break;
    }

    // Close off the response element
    xml.endElement(WebDAV.DAV_NS, WebDAV.XML_RESPONSE, WebDAV.XML_NS_RESPONSE);
}
 

/**
 * 关闭XMLWriter输出流
 * @param out
 */
public static void close(XMLWriter out){
    if(out != null){
        try {
            out.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}
 

/**
 * Save the problem and the resulting assignment
 * @param outputDir output directory
 * @param assignment final assignment
 */
protected void save(File outputDir, Assignment<TeachingRequest.Variable, TeachingAssignment> assignment) {
    try {
        File outFile = new File(outputDir, "solution.xml");
        FileOutputStream fos = new FileOutputStream(outFile);
        try {
            (new XMLWriter(fos, OutputFormat.createPrettyPrint())).write(save(assignment));
            fos.flush();
        } finally {
            fos.close();
        }
    } catch (Exception e) {
        sLog.error("Failed to save solution: " + e.getMessage(), e);
    }
}
 

/**
 * Generates the XML response snippet showing the lock information for the
 * given path
 * 
 * @param xml XMLWriter
 * @param nodeInfo FileInfo
 * @param isDir boolean
 */
protected void generateLockDiscoveryResponse(XMLWriter xml, FileInfo nodeInfo, boolean isDir) throws Exception
{
    // Output the lock status response
    LockInfo lockInfo = getNodeLockInfo(nodeInfo);
    if (lockInfo.isLocked() && !lockInfo.isExpired())
    {
        generateLockDiscoveryXML(xml, nodeInfo, lockInfo);
    }
}
 

public void setStudentsDocument(Document document) {
	try {
		if (document == null) {
			setStudents(null);
		} else {
			StringWriter string = new StringWriter();
			XMLWriter writer = new XMLWriter(string, OutputFormat.createCompactFormat());
			writer.write(document);
			writer.flush(); writer.close();
			setStudents(string.toString());
		}
	} catch (Exception e) {
		sLog.warn("Failed to store cached students for " + getCurriculum().getAbbv() + " " + getName() + ": " + e.getMessage(), e);
	}
}
 

public void setValue(Document document) {
	try {
		if (document == null) {
			setData(null);
		} else {
			 ByteArrayOutputStream bytes = new ByteArrayOutputStream();
             XMLWriter writer = new XMLWriter(new GZIPOutputStream(bytes),OutputFormat.createCompactFormat());
             writer.write(document);
             writer.flush(); writer.close();
             setData(bytes.toByteArray());
		}
	} catch (IOException e) {
		throw new HibernateException(e.getMessage(),e);
	}
}
 

/**
 * Flushes all XML written so far to the response
 * 
 * @param writer XMLWriter that should be flushed
 */
protected final void flushXML(XMLWriter writer) throws IOException
{
    if (shouldFlushXMLWriter())
    {
        writer.flush();
    }
    
    m_response.getWriter().write(m_xmlWriter.toCharArray());
    
    m_xmlWriter.reset();
}
 

/**
 * @author 
 * @param folderPath
 * @param plug_id
 * @param lastDate
 * @param dayInpast
 */
private void genVersionLog(	File folderPath , 
							String plug_id , 
							String lastDate , 
							int dayInpast ){
	// gen the dest file path
	String parentPath = folderPath.getAbsolutePath();
	String fileName = plug_id + "_DayInPast" + ".xml";
	String fullName = parentPath + "/" + fileName;
	File dest = new File(fullName);
	System.out.println("dest file full path:\t"+fullName);
	try{
		//genarate document factory
		DocumentFactory factory = new DocumentFactory();
		//create root element
		DOMElement rootElement = new DOMElement("plugin");
		rootElement.setAttribute("id",plug_id);
		//add child:lastdate
		DOMElement dateElement = new DOMElement("LastDate");
		dateElement.setText(lastDate);
		rootElement.add(dateElement);
		//add child:dayinpast
		DOMElement dayElement = new DOMElement("DayInPast");
		dayElement.setText( Integer.toString(dayInpast));
		rootElement.add(dayElement);
		//gen the doc
		Document doc = factory.createDocument(rootElement);
	
		//PrettyFormat
		OutputFormat format = OutputFormat.createPrettyPrint();
		XMLWriter writer = new XMLWriter( new FileWriter(dest) , format );
		writer.write( doc );
		writer.close();

	}catch(Exception ex){
		ex.printStackTrace();
	}

}
 

/**
 * Generates the XML response for a PROPFIND request that asks for a list of
 * all known properties
 * 
 * @param xml XMLWriter
 * @param property WebDAVProperty
 * @param status int
 * @param description String
 */
protected void generatePropertyResponse(XMLWriter xml, WebDAVProperty property, int status, String description)
{
    try
    {
        // Output the start of the properties element
        Attributes nullAttr = getDAVHelper().getNullAttributes();

        xml.startElement(WebDAV.DAV_NS, WebDAV.XML_PROPSTAT, WebDAV.XML_NS_PROPSTAT, nullAttr);

        // Output property name
        xml.startElement(WebDAV.DAV_NS, WebDAV.XML_PROP, WebDAV.XML_NS_PROP, nullAttr);
        if (property.hasNamespaceName())
        {
            xml.write(DocumentHelper.createElement(property.getNamespaceName() + WebDAV.NAMESPACE_SEPARATOR + property.getName()));
        }
        else
        {
            xml.write(DocumentHelper.createElement(property.getName()));
        }
        xml.endElement(WebDAV.DAV_NS, WebDAV.XML_PROP, WebDAV.XML_NS_PROP);

        // Output action result status
        xml.startElement(WebDAV.DAV_NS, WebDAV.XML_STATUS, WebDAV.XML_NS_STATUS, nullAttr);
        xml.write(WebDAV.HTTP1_1 + " " + status + " " + description);
        xml.endElement(WebDAV.DAV_NS, WebDAV.XML_STATUS, WebDAV.XML_NS_STATUS);

        xml.endElement(WebDAV.DAV_NS, WebDAV.XML_PROPSTAT, WebDAV.XML_NS_PROPSTAT);
    }
    catch (Exception ex)
    {
        // Convert to a runtime exception
        throw new AlfrescoRuntimeException("XML processing error", ex);
    }
}