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:\\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();
 }
}

来源：https://www.cnblogs.com/zhaosq/p/12069087.html