java在线word预览

这个是一个比较简单的word转换成html来进行在线预览

封成了一个util，代码如下

public class WordToHtmlUtils {


    /**
     * @param wordPath  要转换文件的绝对路径
     * @param htmlName 生成的html文件名
     * @param relativelyPath 存放的相对路径 /insfile/wordtohtml/
     * @param aimsFilePath  存放的文件名 wordtohtml
     * @return
     * @throws IOException
     */
    public static String  Word2007ToHtml(String wordPath, String htmlName, String relativelyPath, String aimsFilePath) throws IOException {

        //静态资源路径,用来存放生成的的html和图片的
        String filepath = App.FILE_SYS+File.separatorChar+aimsFilePath+File.separatorChar ;
        File f = new File(wordPath);
        if (!f.exists()) {
            System.out.println("Sorry File does not Exists!");
        } else {
            if (f.getName().endsWith(".docx") || f.getName().endsWith(".DOCX")) {
                // 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.setIgnoreStylesIfUnused(false);
                options.setFragment(true);

                //这里可以替换生成的图片为相对路径
                options.URIResolver(new IURIResolver() {

                    //这个uri就是图片在aimsFilePath下的相对路径
　　　　　　　　　　　　//如果在线预览没有显示图片，在这里看看
                    @Override
                    public String resolve(String uri) {
                        return relativelyPath + uri;//返回图片url
                    }
                });

                // 3) 将 XWPFDocument转换成XHTML
                OutputStream out = new FileOutputStream(new File(filepath + htmlName));
                XHTMLConverter.getInstance().convert(document, out, options);
                //也可以使用字符数组流获取解析的内容
//                ByteArrayOutputStream baos = new ByteArrayOutputStream();
//                XHTMLConverter.getInstance().convert(document, baos, options);
//                String content = baos.toString();
//                System.out.println(content);
//                 baos.close();
            } else {
                System.out.println("Enter only MS Office 2007+ files");
            }
        }
        return relativelyPath+htmlName;
    }


    /**
     * @param wordPath  要转换文件的绝对路径
     * @param htmlName 生成的html文件名
     * @param relativelyPath 存放的相对路径 /insfile/wordtohtml/
     * @param aimsFilePath  存放的文件名 wordtohtml
     * @param imageFile 存放图片的目录 doc
     * @return
     * @throws IOException
     * @throws TransformerException
     * @throws ParserConfigurationException
     */
    public static String  Word2003ToHtml(String wordPath, String htmlName, String relativelyPath, String aimsFilePath, String imageFile) throws IOException, TransformerException, ParserConfigurationException {
        final String imagepath = App.FILE_SYS+File.separator+aimsFilePath+File.separator+imageFile+File.separator;//解析时候如果doc文件中有图片  图片会保存在此路径
        String filepath = App.FILE_SYS+File.separatorChar+aimsFilePath+File.separatorChar ;
        final String file =wordPath;
        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 + suggestedName);
                try {
                    OutputStream os = new FileOutputStream(file);
                    os.write(content);
                    os.close();
                } catch (FileNotFoundException e) {
                    e.printStackTrace();
                } catch (IOException e) {
                    e.printStackTrace();
                }
                return relativelyPath+File.separator+imageFile+File.separator+ suggestedName;
            }
        });

        //解析word文档
        wordToHtmlConverter.processDocument(wordDocument);
        Document htmlDocument = wordToHtmlConverter.getDocument();

        File htmlFile = new File(filepath + htmlName);
        OutputStream outStream = new FileOutputStream(htmlFile);

        //也可以使用字符数组流获取解析的内容
//        ByteArrayOutputStream baos = new ByteArrayOutputStream();
//        OutputStream outStream = new BufferedOutputStream(baos);

        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);

        //也可以使用字符数组流获取解析的内容
//        String content = baos.toString();
//        System.out.println(content);
//        baos.close();
        outStream.close();
        return relativelyPath+File.separator+htmlName;
    }


}

//图片存放路径根据自己需求来修改，支持doc， docx