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Java实现Word/Pdf/TXT转html的示例

2020-11-07 08:02:48 来源:易采站长站 作者:

Java实现Word/Pdf/TXT转html的示例,文档,文件,转换成,路径,课程

Java实现Word/Pdf/TXT转html的示例

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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";
    //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();
  }
 }

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