Java实现Word/Pdf/TXT转html的示例

引言:

最近公司在做一个教育培训学习及在线考试的项目,本人主要从事网络课程模块,主要做课程分类,课程,课件的创建及在线学习和统计的功能,因为课件涉及到多种类型,像视频,音频,图文,外部链接及文档类型.其中就涉及到一个问题,就是文档型课件课程在网页上的展示和学习问题,因为要在线统计学习的课程,学习的人员,学习的时长,所以不能像传统做法将文档下载到本地学习,那样就不受系统控制了,所以最终的方案是,在上传文档型课件的时候,将其文件对应的转换成HTML文件,以便在网页上能够浏览学习

下边主要针对word,pdf和txt文本文件进行转换

一:Java实现将word转换为html

1:引入依赖

<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:代码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 转换成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('甲骨文考证.doc'); wt.Word2007ToHtml('甲骨文考证.docx'); } /** * 2003版本word转换成html * @throws IOException * @throws TransformerException * @throws ParserConfigurationException */ public void Word2003ToHtml(String fileName) throws IOException, TransformerException, ParserConfigurationException { final String imagepath = STORAGEPATH+'fileImage/';//解析时候如果doc文件中有图片 图片会保存在此路径 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()); //设置图片存放的位置 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()){//图片目录不存在则创建 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文档 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文件路径:'+ 'http://'+IP+':'+PORT+'//uploadFile/'+strRanString+htmlName); } /** * 2007版本word转换成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) 加载word文档生成 XWPFDocument对象 InputStream in = new FileInputStream(f); XWPFDocument document = new XWPFDocument(in); // 2) 解析 XHTML配置 (这里设置IURIResolver来设置图片存放的目录) 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) 将 XWPFDocument转换成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路径:'+'http://'+IP+':'+PORT+'//uploadFile/'+strRanString+htmlName); } catch (Exception e) { e.printStackTrace(); } } else { System.out.println('Enter only MS Office 2007+ files'); } } } /** *功能说明:生成时间戳 *创建人:zsq *创建时间: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实现将Pdf转换为html

1: 引入依赖

<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:代码Demo

public class PdfToHtml { /* pdf转换html */ public void pdfToHtmlTest(String inPdfPath,String outputHtmlPath) { // String outputPath = 'C:worksfilesZSQ保密知识测试题库.html'; //try() 写在()里面会自动关闭流 try{ BufferedWriter out = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(new File(outputHtmlPath)),'utf-8')); //加载PDF文档 //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实现将TXT转换为html

/* * txt文档转html filePath:txt原文件路径 htmlPosition:转化后生成的html路径 */ public static void txtToHtml(String filePath, String htmlPosition) { try { //String encoding = 'GBK'; File file = new File(filePath); if (file.isFile() && file.exists()) { // 判断文件是否存在 InputStreamReader read = new InputStreamReader(new FileInputStream(file), 'GBK'); // 考虑到编码格式 BufferedReader bufferedReader = new BufferedReader(read); // 写文件 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('&nbsp&nbsp&nbsp'+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('读取文件内容出错'); e.printStackTrace(); } }

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