Java实现Word/Pdf/TXT转html

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:\works\files\ZSQ保密知识测试题库.html";
    9        //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:\works\files\武研中心行政考勤制度.pdf";
        String outputPath="C:\works\files\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();
        }
    }