引言:

最近公司在做一個教育培訓學習及在線考試的項目,本人主要從事網絡課程模塊,主要做課程分類,課程,課件的創建及在線學習和統計的功能,因為課件涉及到多種類型,像視頻,音頻,圖文,外部鏈接及文檔類型.其中就涉及到一個問題,就是文檔型課件課程在網頁上的展示和學習問題,因為要在線統計學習的課程,學習的人員,學習的時長,所以不能像傳統做法將文檔下載到本地學習,那樣就不受系統控制了,所以最終的方案是,在上傳文檔型課件的時候,將其文件對應的轉換成HTML文件,以便在網頁上能夠瀏覽學習

下邊主要針對word,pdf和txt文本文件進行轉換

一:Java實現將word轉換為html

1:引入依賴

<dependency> <groupId>fr.opensagres.xdocreport</groupId> <artifactId>fr.opensagres.xdocreport.document</artifactId> <version>1.0.5</version> </dependency> <dependency> <groupId>fr.opensagres.xdocreport</groupId> <artifactId>org.apache.poi.xwpf.converter.xhtml</artifactId> <version>1.0.5</version> </dependency> <dependency> <groupId>org.apache.poi</groupId> <artifactId>poi</artifactId> <version>3.12</version> </dependency> <dependency> <groupId>org.apache.poi</groupId> <artifactId>poi-scratchpad</artifactId> <version>3.12</version> </dependency>

2:代碼demo

package com.svse.controller; import javax.xml.parsers.DocumentBuilderFactory; import javax.xml.parsers.ParserConfigurationException; import javax.xml.transform.OutputKeys; import javax.xml.transform.Transformer; import javax.xml.transform.TransformerException; import javax.xml.transform.TransformerFactory; import javax.xml.transform.dom.DOMSource; import javax.xml.transform.stream.StreamResult; import org.apache.poi.hwpf.HWPFDocument; import org.apache.poi.hwpf.converter.PicturesManager; import org.apache.poi.hwpf.converter.WordToHtmlConverter; import org.apache.poi.hwpf.usermodel.PictureType; import org.apache.poi.xwpf.converter.core.BasicURIResolver; import org.apache.poi.xwpf.converter.core.FileImageExtractor; import org.apache.poi.xwpf.converter.core.FileURIResolver; import org.apache.poi.xwpf.converter.core.IURIResolver; import org.apache.poi.xwpf.converter.core.IXWPFConverter; import org.apache.poi.xwpf.converter.xhtml.XHTMLConverter; import org.apache.poi.xwpf.converter.xhtml.XHTMLOptions; import org.apache.poi.xwpf.usermodel.XWPFDocument; /** * word 轉換成html */public class TestWordToHtml { public static final String STORAGEPATH='C://works//files//'; public static final String IP='192.168.30.222'; public static final String PORT='8010'; public static void main(String[] args) throws IOException, TransformerException, ParserConfigurationException { TestWordToHtml wt=new TestWordToHtml(); //wt.Word2003ToHtml('甲骨文考證.doc'); wt.Word2007ToHtml('甲骨文考證.docx'); } /** * 2003版本word轉換成html * @throws IOException * @throws TransformerException * @throws ParserConfigurationException */ public void Word2003ToHtml(String fileName) throws IOException, TransformerException, ParserConfigurationException { final String imagepath = STORAGEPATH+'fileImage/';//解析時候如果doc文件中有圖片 圖片會保存在此路徑 final String strRanString=getRandomNum(); String filepath =STORAGEPATH; String htmlName =fileName.substring(0, fileName.indexOf('.'))+ '2003.html'; final String file = filepath + fileName; InputStream input = new FileInputStream(new File(file)); HWPFDocument wordDocument = new HWPFDocument(input); WordToHtmlConverter wordToHtmlConverter = new WordToHtmlConverter(DocumentBuilderFactory.newInstance().newDocumentBuilder().newDocument()); //設置圖片存放的位置 wordToHtmlConverter.setPicturesManager(new PicturesManager() { public String savePicture(byte[] content, PictureType pictureType, String suggestedName, float widthInches, float heightInches) {File imgPath = new File(imagepath);if(!imgPath.exists()){//圖片目錄不存在則創建 imgPath.mkdirs();} File file = new File(imagepath +strRanString+suggestedName);try { OutputStream os = new FileOutputStream(file); os.write(content); os.close();} catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace();} return 'http://'+IP+':'+PORT+'//uploadFile/fileImage/'+strRanString+suggestedName; // return imagepath +strRanString+suggestedName; } }); //解析word文檔 wordToHtmlConverter.processDocument(wordDocument); Document htmlDocument = wordToHtmlConverter.getDocument(); File htmlFile = new File(filepath +strRanString+htmlName); OutputStream outStream = new FileOutputStream(htmlFile); DOMSource domSource = new DOMSource(htmlDocument); StreamResult streamResult = new StreamResult(outStream); TransformerFactory factory = TransformerFactory.newInstance(); Transformer serializer = factory.newTransformer(); serializer.setOutputProperty(OutputKeys.ENCODING, 'utf-8'); serializer.setOutputProperty(OutputKeys.INDENT, 'yes'); serializer.setOutputProperty(OutputKeys.METHOD, 'html');serializer.transform(domSource, streamResult); outStream.close(); System.out.println('生成html文件路徑:'+ 'http://'+IP+':'+PORT+'//uploadFile/'+strRanString+htmlName); } /** * 2007版本word轉換成html * @throws IOException */ public void Word2007ToHtml(String fileName) throws IOException { final String strRanString=getRandomNum(); String filepath = STORAGEPATH+strRanString; String htmlName =fileName.substring(0, fileName.indexOf('.'))+ '2007.html'; File f = new File(STORAGEPATH+fileName); if (!f.exists()) {System.out.println('Sorry File does not Exists!'); } else {if (f.getName().endsWith('.docx') || f.getName().endsWith('.DOCX')) { try { // 1) 加載word文檔生成 XWPFDocument對象 InputStream in = new FileInputStream(f); XWPFDocument document = new XWPFDocument(in); // 2) 解析 XHTML配置 (這里設置IURIResolver來設置圖片存放的目錄) File imageFolderFile = new File(filepath); XHTMLOptions options = XHTMLOptions.create().URIResolver(new FileURIResolver(imageFolderFile)); options.setExtractor(new FileImageExtractor(imageFolderFile)); options.URIResolver(new IURIResolver() { public String resolve(String uri) { //http://192.168.30.222:8010//uploadFile/.... return 'http://'+IP+':'+PORT+'//uploadFile/'+strRanString +'/'+ uri; } }); options.setIgnoreStylesIfUnused(false); options.setFragment(true); // 3) 將 XWPFDocument轉換成XHTML OutputStream out = new FileOutputStream(new File(filepath + htmlName)); IXWPFConverter<XHTMLOptions> converter = XHTMLConverter.getInstance(); converter.convert(document,out, options); //XHTMLConverter.getInstance().convert(document, out, options); System.out.println('html路徑:'+'http://'+IP+':'+PORT+'//uploadFile/'+strRanString+htmlName); } catch (Exception e) { e.printStackTrace(); } } else { System.out.println('Enter only MS Office 2007+ files');} } } /** *功能說明:生成時間戳 *創建人:zsq *創建時間:2019年12月7日 下午2:37:09 * */ public static String getRandomNum(){ Date dt = new Date(); SimpleDateFormat sdf = new SimpleDateFormat('yyyyMMddHHmmss'); String str=sdf.format(dt); return str; } }

二:Java實現將Pdf轉換為html

1: 引入依賴

<dependency> <groupId>net.sf.cssbox</groupId> <artifactId>pdf2dom</artifactId> <version>1.7</version> </dependency> <dependency> <groupId>org.apache.pdfbox</groupId> <artifactId>pdfbox</artifactId> <version>2.0.12</version> </dependency> <dependency> <groupId>org.apache.pdfbox</groupId> <artifactId>pdfbox-tools</artifactId> <version>2.0.12</version> </dependency>

2:代碼Demo

public class PdfToHtml { /* pdf轉換html */ public void pdfToHtmlTest(String inPdfPath,String outputHtmlPath) { // String outputPath = 'C:worksfilesZSQ保密知識測試題庫.html'; //try() 寫在()里面會自動關閉流 try{ BufferedWriter out = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(new File(outputHtmlPath)),'utf-8')); //加載PDF文檔 //PDDocument document = PDDocument.load(bytes); PDDocument document = PDDocument.load(new File(inPdfPath)); PDFDomTree pdfDomTree = new PDFDomTree(); pdfDomTree.writeText(document,out); } catch (Exception e) { e.printStackTrace(); } } public static void main(String[] args) throws IOException { PdfToHtml ph=new PdfToHtml(); String pdfPath='C:worksfiles武研中心行政考勤制度.pdf'; String outputPath='C:worksfiles武研中心行政考勤制度.html'; ph.pdfToHtmlTest(pdfPath,outputPath); } }

三:Java實現將TXT轉換為html

/* * txt文檔轉html filePath:txt原文件路徑 htmlPosition:轉化后生成的html路徑 */ public static void txtToHtml(String filePath, String htmlPosition) { try { //String encoding = 'GBK'; File file = new File(filePath); if (file.isFile() && file.exists()) { // 判斷文件是否存在 InputStreamReader read = new InputStreamReader(new FileInputStream(file), 'GBK'); // 考慮到編碼格式 BufferedReader bufferedReader = new BufferedReader(read); // 寫文件 FileOutputStream fos = new FileOutputStream(new File(htmlPosition)); OutputStreamWriter osw = new OutputStreamWriter(fos, 'GBK'); BufferedWriter bw = new BufferedWriter(osw); String lineTxt = null; while ((lineTxt = bufferedReader.readLine()) != null) { bw.write(' '+lineTxt + '</br>'); } bw.close(); osw.close(); fos.close(); read.close(); } else { System.out.println('找不到指定的文件'); } } catch (Exception e) { System.out.println('讀取文件內容出錯'); e.printStackTrace(); } }

總結

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