java poi读取.doc和.docx文件时获取图片与段落的对应关系

.doc文件

• 代码中的WordParagraph类是自己创建的实体类,用于记录文本信息和图片
• file_word对象为前台上传的MultipartFile对象.

//            doc格式
            List wordParagraphs=new ArrayList<>();
            HWPFDocument doc = new HWPFDocument(file_word.getInputStream());
            Range range = doc.getRange();
            int numP = range.numParagraphs();


            //StringBuffer ret = new StringBuffer();
            for (int i = 0; i < numP; ++i) {
                //从每一段落中获取文字
                Paragraph p = range.getParagraph(i);
                //ret.append(p.text());
                WordParagraph wordParagraph=new WordParagraph(p.text(),i);
                wordParagraph.init();
                wordParagraphs.add(wordParagraph);
            }

           // List pictsList = new ArrayList();
            // 得到文档的数据流
            byte[] dataStream = doc.getDataStream();
            int numChar = range.numCharacterRuns();

            Integer paragraphOrder=0;
            PicturesTable pTable = new PicturesTable(doc, dataStream, new byte[1024]);
            for (int j = 0; j < numChar; ++j) {
                CharacterRun cRun = range.getCharacterRun(j);
                boolean has = pTable.hasPicture(cRun);
                String[] temp_array=(cRun.toString()+" ").split("\r");
                paragraphOrder=paragraphOrder+temp_array.length-1;

                if (has) {
                    Picture picture = pTable.extractPicture(cRun, true);
                    if(paragraphOrder

• 当前处理方式存在一些局限性
• 无法确定图片在段落的具体位置信息.(该问题可通过对文档流处理的优化解决)
• 如果一个段落有多个图片,可能只解析一个

.docx

• 网上对标签解析的方式,实测不可行.poi实际有提供获取的方法.
• 同样的,无法获取图片在段落的具体位置
• .doc和.docx读取的图片类不是同一个,兼容的时候需要注意.

//           docx格式
            XWPFDocument document=new XWPFDocument(file_word.getInputStream());
            List XWPFParagraphList=document.getParagraphs();
            //List picList = document.getAllPictures();
            for (int i = 0; i < XWPFParagraphList.size(); ++i) {
                //从每一段落中获取文字
                XWPFParagraph p = XWPFParagraphList.get(i);
                WordParagraph wordParagraph=new WordParagraph(p.getParagraphText(),i);
                List pictureList=readImageInfoInParagraph(p);
                wordParagraph.setPictures(pictureList);
                wordParagraph.init();
                wordParagraphs.add(wordParagraph);

            }
    //获取某一个段落中的所有图片
    public static List readImageInfoInParagraph(XWPFParagraph paragraph) {
        List res=new ArrayList<>();
        //段落中所有XWPFRun
        List runList = paragraph.getRuns();
        for (XWPFRun run : runList) {
            List pictures=run.getEmbeddedPictures();
            for(int i=0;i