docx、ppt、xls、pdf文件转html（转）

叁歲伎倆 2022-05-26 07:18 378阅读 0赞

**此博客转自：https://blog.csdn.net/fyhx2010/article/details/69569310**

场景:

后台上传的文档要再前端app上在线预览

解决办法：

将文档转成html用于前端显示

maven引入

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1.  <dependency>  
2.              <groupId>fr.opensagres.xdocreport</groupId>  
3.              <artifactId>fr.opensagres.xdocreport.document</artifactId>  
4.              <version>1.0.5</version>  
5.          </dependency>  
6.          <dependency>    
7.              <groupId>fr.opensagres.xdocreport</groupId>    
8.              <artifactId>org.apache.poi.xwpf.converter.xhtml</artifactId>    
9.              <version>1.0.5</version>    
10.         </dependency>  
11.         <dependency>  
12.             <groupId>org.apache.poi</groupId>  
13.             <artifactId>poi-ooxml</artifactId>  
14.             <version>3.9</version>  
15.         </dependency>  
16.         <dependency>  
17.             <groupId>org.apache.poi</groupId>  
18.             <artifactId>poi-scratchpad</artifactId>  
19.             <version>3.9</version>  
20.         </dependency>

具体代码：

1、docx转html

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1.  /\*\* 
2.       \* docx文件转html 
3.       \* @param tempContextUrl 项目访问名 
4.       \* @return 
5.       \*/  
6.      **public** **int** Word2007ToHtml(String tempContextUrl) \{  
7.          **int** rv = 0;  
8.          **try** \{  
9.              String path =  presentationDto.getWordPath();  
10.             //word路径  
11.             String wordPath = path.substring(0, path.indexOf("upload")+6);  
12.             //word文件名  
13.             String wordName = path.substring(path.lastIndexOf(File.separator)+1,path.lastIndexOf("."));  
14.             //后缀  
15.             String suffix = path.substring(path.lastIndexOf("."));  
16.             //生成html路径  
17.             String htmlPath = wordPath + File.separator + System.currentTimeMillis() + "\_show" + File.separator;  
18.             //生成html文件名  
19.             String htmlName = System.currentTimeMillis() + ".html";  
20.             //图片路径  
21.             String imagePath = htmlPath + "image" + File.separator;  
22.                
23.             //判断html文件是否存在  
24.             File htmlFile = **new** File(htmlPath + htmlName);  
25.                    
26.             //word文件  
27.             File wordFile = **new** File(wordPath + File.separator + wordName + suffix);   
28.                
29.             // 1) 加载word文档生成 XWPFDocument对象   
30.             InputStream in = **new** FileInputStream(wordFile);   
31.             XWPFDocument document = **new** XWPFDocument(in);   
32.    
33.             // 2) 解析 XHTML配置 (这里设置IURIResolver来设置图片存放的目录)   
34.             File imgFolder = **new** File(imagePath);  
35.             XHTMLOptions options = XHTMLOptions.create();  
36.             options.setExtractor(**new** FileImageExtractor(imgFolder));  
37.             //html中图片的路径 相对路径   
38.             options.URIResolver(**new** BasicURIResolver("image"));  
39.             options.setIgnoreStylesIfUnused(**false**);   
40.             options.setFragment(**true**);   
41.                
42.             // 3) 将 XWPFDocument转换成XHTML  
43.             //生成html文件上级文件夹  
44.             File folder = **new** File(htmlPath);  
45.             **if**(!folder.exists())\{   
46.               folder.mkdirs();   
47.             \}  
48.             OutputStream out = **new** FileOutputStream(htmlFile);   
49.             XHTMLConverter.getInstance().convert(document, out, options);  
50.   
51.             // 4) 转换为项目访问路径  
52.             String absolutePath = htmlFile.getAbsolutePath();  
53.             htmlPath = tempContextUrl + absolutePath.substring(absolutePath.indexOf("upload"));  
54.             presentationDto.setHtmlPath(htmlPath);  
55.         \} **catch** (FileNotFoundException e) \{  
56.             e.printStackTrace();  
57.             **return** rv;   
58.         \} **catch** (XWPFConverterException e) \{  
59.             e.printStackTrace();  
60.             **return** rv;   
61.         \} **catch** (IOException e) \{  
62.             e.printStackTrace();  
63.             **return** rv;   
64.         \}  
65.         rv = 1;  
66.         **return** rv;   
67.     \}

2、xls转html

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1.  **private** **int** xlsToHtml(String tempContextUrl)\{  
2.          **int** rv = 0;  
3.          String path =  presentationDto.getWordPath();  
4.          //word路径  
5.          String wordPath = path.substring(0, path.indexOf("upload")+6) + File.separator;  
6.          //word文件名  
7.          String wordName = path.substring(path.lastIndexOf(File.separator)+1);  
8.          **try** \{  
9.              InputStream input=**new** FileInputStream(wordPath+wordName);  
10.             HSSFWorkbook excelBook=**new** HSSFWorkbook(input);  
11.             ExcelToHtmlConverter excelToHtmlConverter = **new** ExcelToHtmlConverter (DocumentBuilderFactory.newInstance().newDocumentBuilder().newDocument() );  
12.             excelToHtmlConverter.processWorkbook(excelBook);  
13.             List pics = excelBook.getAllPictures();  
14.             **if** (pics != **null**) \{  
15.                 **for** (**int** i = 0; i < pics.size(); i++) \{  
16.                     Picture pic = (Picture) pics.get (i);  
17.                     **try** \{  
18.                         pic.writeImageContent (**new** FileOutputStream (wordPath + pic.suggestFullFileName() ) );  
19.                     \} **catch** (FileNotFoundException e) \{  
20.                         e.printStackTrace();  
21.                     \}  
22.                 \}  
23.             \}  
24.             Document htmlDocument =excelToHtmlConverter.getDocument();  
25.             ByteArrayOutputStream outStream = **new** ByteArrayOutputStream();  
26.             DOMSource domSource = **new** DOMSource (htmlDocument);  
27.             StreamResult streamResult = **new** StreamResult (outStream);  
28.             TransformerFactory tf = TransformerFactory.newInstance();  
29.             Transformer serializer = tf.newTransformer();  
30.             serializer.setOutputProperty (OutputKeys.ENCODING, "utf-8");  
31.             serializer.setOutputProperty (OutputKeys.INDENT, "yes");  
32.             serializer.setOutputProperty (OutputKeys.METHOD, "html");  
33.             serializer.transform (domSource, streamResult);  
34.             outStream.close();  
35.       
36.             String content = **new** String (outStream.toByteArray(),"utf-8");  
37.       
38.             String uuid = UidUtil.generateUUID();  
39.             FileUtils.writeStringToFile(**new** File(wordPath, uuid+".html"), content, "utf-8");  
40.             presentationDto.setHtmlPath(tempContextUrl + "upload" + File.separator + uuid+".html");  
41.         \} **catch** (Exception e) \{  
42.             e.printStackTrace();  
43.             **return** rv;   
44.         \}  
45.         rv = 1;  
46.         **return** rv;   
47.     \}

3、ppt转html

其实只是ppt转图片，有了图片后放到页面上去显示。

\[java\]  [view plain][]   [copy][view plain]

1.  /\*\* 
2.       \* ppt转html 
3.       \* @param tempContextUrl 
4.       \* @return 
5.       \*/  
6.      **private** **int** pptToHtml(String tempContextUrl)\{  
7.          **int** rv = 0;  
8.          String path = presentationDto.getWordPath();  
9.          //word路径  
10.         String wordPath = path.substring(0, path.indexOf("upload")+6);  
11.         //文件夹名  
12.         String folderName = UidUtil.generateUUID();  
13.         List<String> imgList = **new** ArrayList<String>();  
14.         File file = **new** File(path);  
15.           
16.         File folder = **new** File(wordPath + File.separator + folderName);  
17.         **try** \{     
18.             folder.mkdirs();  
19.             FileInputStream is = **new** FileInputStream(file);     
20.             SlideShow ppt = **new** SlideShow(is);     
21.             is.close();     
22.             Dimension pgsize = ppt.getPageSize();     
23.             org.apache.poi.hslf.model.Slide\[\] slide = ppt.getSlides();     
24.             **for** (**int** i = 0; i < slide.length; i++) \{  
25.                 TextRun\[\] truns = slide\[i\].getTextRuns();        
26.                 **for** ( **int** k=0;k<truns.length;k++)\{        
27.                    RichTextRun\[\] rtruns = truns\[k\].getRichTextRuns();        
28.                   **for**(**int** l=0;l<rtruns.length;l++)\{        
29.                         rtruns\[l\].setFontIndex(1);        
30.                         rtruns\[l\].setFontName("宋体");    
31.                    \}        
32.                 \}        
33.                 BufferedImage img = **new** BufferedImage(pgsize.width,pgsize.height, BufferedImage.TYPE\_INT\_RGB);     
34.                 Graphics2D graphics = img.createGraphics();     
35.                 graphics.setPaint(Color.BLUE);     
36.                 graphics.fill(**new** Rectangle2D.Float(0, 0, pgsize.width, pgsize.height));     
37.                 slide\[i\].draw(graphics);     
38.   
39.                 // 这里设置图片的存放路径和图片的格式(jpeg,png,bmp等等),注意生成文件路径     
40.                 String imgName = File.separator + folderName + File.separator +"pict\_"\+ (i + 1) + ".jpeg";  
41.                   
42.                 FileOutputStream out = **new** FileOutputStream(wordPath + imgName);     
43.                 javax.imageio.ImageIO.write(img, "jpeg", out);  
44.                 out.close();     
45.                   
46.                 imgList.add(File.separator + "upload" + imgName);  
47.             \}  
48.         \} **catch** (FileNotFoundException e) \{  
49.             e.printStackTrace();  
50.             **return** rv;  
51.         \} **catch** (IOException e) \{  
52.             e.printStackTrace();  
53.             **return** rv;  
54.         \}  
55.         rv = createHtml(wordPath,imgList, tempContextUrl);  
56.         **return** rv;  
57.     \}  
58.       
59.     /\*\* 
60.      \* ppt转html时生成html 
61.      \* @param wordPath  upload根目录 
62.      \* @param imgList   所有幻灯片路径 
63.      \* @param tempContextUrl    项目访问路径 
64.      \* @return 
65.      \*/  
66.     **private** **int** createHtml(String wordPath,List<String> imgList,String tempContextUrl)\{  
67.         **int** rv = 0;  
68.         StringBuilder sb = **new** StringBuilder("<!doctype html><html><head><meta charset='utf-8'><title>无标题文档</title></head><body>");  
69.         **if** (imgList != **null** && !imgList.isEmpty()) \{  
70.             **for** (String img : imgList) \{  
71.                 sb.append("<img src='" + img + "' /><br>");  
72.             \}  
73.         \}  
74.         sb.append("</body></html>");  
75.           
76.         String uuid = UidUtil.generateUUID();  
77.         **try** \{  
78.             File file = **new** File(wordPath + File.separator + uuid + ".html");  
79.             BufferedWriter bufferedWriter = **new** BufferedWriter(**new** OutputStreamWriter(**new** FileOutputStream(file),"UTF-8"));  
80.             bufferedWriter.write(sb.toString());  
81.             bufferedWriter.close();  
82.         \} **catch** (IOException e) \{  
83.             e.printStackTrace();  
84.             **return** rv;  
85.         \}  
86.         presentationDto.setHtmlPath(tempContextUrl + "upload" + File.separator + uuid+".html");  
87.         **return** 1;  
88.     \}

4、pdf转html

原理同ppt转html一样

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1.  /\*\* 
2.       \* pdf转html 
3.       \* @param tempContextUrl 
4.       \* @return 
5.       \*/  
6.      **private** **int** pdfToHtml(String tempContextUrl)\{  
7.          **int** rv = 0;  
8.          String path = presentationDto.getWordPath();  
9.          //word路径  
10.         String wordPath = path.substring(0, path.indexOf("upload")+6);  
11.         //文件夹名  
12.         String folderName = UidUtil.generateUUID();  
13.         List<String> imgList = **new** ArrayList<String>();  
14.         File file = **new** File(path);  
15.         **try** \{  
16.             PDDocument doc = PDDocument.load(path);  
17.             **int** pageCount = doc.getPageCount();   
18.             System.out.println(pageCount);   
19.             List pages = doc.getDocumentCatalog().getAllPages();   
20.             **for**(**int** i=0;i<pages.size();i++)\{  
21.                 PDPage page = (PDPage)pages.get(i);   
22.                 BufferedImage image = page.convertToImage();   
23.                 Iterator iter = ImageIO.getImageWritersBySuffix("jpg");   
24.                 ImageWriter writer = (ImageWriter)iter.next();   
25.                 String imgName = File.separator + folderName + File.separator +i+".jpg";  
26.                 File folder = **new** File(wordPath + File.separator + folderName); //先创建文件夹  
27.                 folder.mkdirs();  
28.                 File outFile = **new** File(wordPath + imgName);    //再创建文件  
29.                 imgList.add(File.separator + "upload" + imgName);  
30.                 outFile.createNewFile();  
31.                 FileOutputStream out = **new** FileOutputStream(outFile);   
32.                 ImageOutputStream outImage = ImageIO.createImageOutputStream(out);   
33.                 writer.setOutput(outImage);   
34.                 writer.write(**new** IIOImage(image,**null**,**null**));   
35.             \}  
36.             doc.close();  
37.         \} **catch** (FileNotFoundException e) \{  
38.             e.printStackTrace();  
39.             **return** rv;  
40.         \} **catch** (IOException e) \{  
41.             e.printStackTrace();  
42.             **return** rv;  
43.         \}  
44.         rv = createHtml(wordPath, imgList, tempContextUrl);  
45.         **return** 1;  
46.     \}

[view plain]: https://blog.csdn.net/fyhx2010/article/details/69569310#