doc html互转

java doc与富文本的转换

• 引入maven所需jar包

    <dependency>

        <groupId>org.apache.poi</groupId>

        <artifactId>poi</artifactId>

        <version>3.14</version>

    </dependency>

    <dependency>

        <groupId>org.apache.poi</groupId>

        <artifactId>poi-scratchpad</artifactId>

        <version>3.14</version>

        <exclusions>

            <exclusion>

                <groupId>org.apache.poi</groupId>

                <artifactId>poi</artifactId>

            </exclusion>

        </exclusions>

    </dependency>

    <!--poi word 处理部分-->

    <dependency>

        <groupId>org.apache.poi</groupId>

        <artifactId>poi-ooxml</artifactId>

        <version>3.14</version>

    </dependency>

    <dependency>

        <groupId>org.apache.poi</groupId>

        <artifactId>poi-ooxml-schemas</artifactId>

        <version>3.14</version>

    </dependency>

    <dependency>

        <groupId>fr.opensagres.xdocreport</groupId>

        <artifactId>xdocreport</artifactId>

        <version>1.0.4</version>

    </dependency>

    <dependency>

        <groupId>fr.opensagres.xdocreport</groupId>

        <artifactId>org.apache.poi.xwpf.converter.core</artifactId>

        <version>1.0.4</version>

    </dependency>

    <dependency>

        <groupId>fr.opensagres.xdocreport</groupId>

        <artifactId>org.apache.poi.xwpf.converter.xhtml</artifactId>

        <version>1.0.4</version>

    </dependency>

    <dependency>

        <groupId>commons-fileupload</groupId>

        <artifactId>commons-fileupload</artifactId>

        <version>1.3.2</version>

    </dependency>

    <!-- html2doc 这里采用 docx4j-->

    <dependency>

        <groupId>org.docx4j</groupId>

        <artifactId>docx4j</artifactId>

        <version>3.3.6</version>

    </dependency>

    <!--jsoup-->

    <dependency>

        <groupId>org.jsoup</groupId>

        <artifactId>jsoup</artifactId>

        <version>1.10.2</version>

    </dependency>

• 工具类

  ---

  package com.example.word.common;
  
  import org.apache.commons.io.FileUtils;
  import org.apache.commons.lang3.StringUtils;
  import org.apache.poi.hwpf.HWPFDocument;
  import org.apache.poi.hwpf.converter.WordToHtmlConverter;
  import org.apache.poi.poifs.filesystem.POIFSFileSystem;
  import org.docx4j.openpackaging.exceptions.Docx4JException;
  import org.docx4j.openpackaging.packages.WordprocessingMLPackage;
  import org.docx4j.openpackaging.parts.WordprocessingML.AltChunkType;
  import org.jsoup.Jsoup;
  import org.jsoup.nodes.Document;
  import org.jsoup.nodes.Element;
  import org.jsoup.select.Elements;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import javax.xml.parsers.DocumentBuilderFactory;
  import javax.xml.transform.OutputKeys;
  import javax.xml.transform.Transformer;
  import javax.xml.transform.TransformerFactory;
  import javax.xml.transform.dom.DOMSource;
  import javax.xml.transform.stream.StreamResult;
  import java.io.File;
  import java.io.FileOutputStream;
  import java.util.StringJoiner;
  
  public class DocumentTransformUtil {
  
      private  static Logger logger = LoggerFactory.getLogger(DocumentTransformUtil.class);
      /**
       * doc--->html
       * @param docFile  doc文件
       * @return  html文本
       */
      public static String doc2Html(File docFile) {
          String htmlPath=docFile.getAbsolutePath().replaceAll(docFile.getName(),"")+docFile.getName().replaceAll(".doc",".html");
  
          String result = "";
          File htmlFile = new File(htmlPath);
          if(!docFile.exists()){
              logger.error("{}.doc不存在",docFile.getName());
          }
          try{
              HWPFDocument wordDocument = new HWPFDocument(new POIFSFileSystem(docFile));
              org.w3c.dom.Document document = DocumentBuilderFactory.newInstance().newDocumentBuilder().newDocument();
              WordToHtmlConverter wordToHtmlConverter = new WordToHtmlConverter(document);
              //保存图片，并返回图片的相对路径
              wordToHtmlConverter.setPicturesManager((content, pictureType, name, width, height) -> {
                  //图片byte[],图片type,图片名,图片宽度,图片高度
                  //上传文件返回url  伪代码
                  //String url =  FileUploadUtil.upload(fileByte, name, true);
                  String url = "https://gss2.bdstatic.com/-fo3dSag_xI4khGkpoWK1HF6hhy/baike/w%3D268%3Bg%3D0/sign=bcd0f6384290f60304b09b410129d426/91ef76c6a7efce1bab44b2c3a751f3deb48f654f.jpg";
                  return url;
              });
              wordToHtmlConverter.processDocument(wordDocument);
              org.w3c.dom.Document htmlDocument = wordToHtmlConverter.getDocument();
              DOMSource domSource = new DOMSource(htmlDocument);
              StreamResult streamResult = new StreamResult();
              streamResult.setOutputStream(new FileOutputStream(htmlFile));
              TransformerFactory tf = TransformerFactory.newInstance();
              Transformer serializer = tf.newTransformer();
              serializer.setOutputProperty(OutputKeys.ENCODING, "UTF-8");
              serializer.setOutputProperty(OutputKeys.INDENT, "yes");
              serializer.setOutputProperty(OutputKeys.METHOD, "html");
              serializer.transform(domSource, streamResult);
              result = FileUtils.readFileToString(htmlFile,"UTF-8");
             //这里拿到html文本后 jsoup 解析
              result =  processUeditorStyle(result);
          } catch (Exception e) {
              e.printStackTrace();
              logger.error("doc--->html出错:{}",e.getMessage());
          }finally {
              htmlFile.delete();
          }
          return result;
      }
  
      /**
       *  处理 ueditor 样式
        * @param result
       * @return
       */
      private static String processUeditorStyle(String result) {
          Document doc = Jsoup.parse(result);
          //body 处理
          //<body class="view" contenteditable="true" spellcheck="false" style="overflow-y: hidden; height: 500px; cursor: text;">
          doc.body().attr("class","view").attr("contenteditable","true")
                      .attr("spellcheck","false").attr("style","overflow-y: hidden; height: 500px; cursor: text;");
          //img处理
          Elements imgs = doc.select("img[src]");
          for (Element img : imgs) {
              String width = "";
              String[] styles = img.attr("style").split(";");
              if (styles.length>0){
                  width = styles[0].split(":")[1].replaceAll("in","");
                  if (Float.parseFloat(width) > 7.43f){
                      StringJoiner styleValue = new StringJoiner(";");
                      styleValue.add("width:173px");
                      for (int i = 1; i < styles.length; i++) {
                          styleValue.add(styles[i]);
                      }
                      img.attr("style",styleValue.toString());
                  }
              }
              if (StringUtils.isBlank(width)){
                  //7.43英寸  doc 1920
                  width = img.attr("width").replaceAll("px","");
                  if (Integer.parseInt(width) > 713 ){
                      img.attr("width","713px");
                  }
              }
              result = doc.outerHtml();
          }
          return result;
      }
  
      /**
       *  处理 doc 样式
       * @param htmlContent
       * @return
       */
      private static String processDocStyle(String htmlContent) {
          Document doc = Jsoup.parse(htmlContent);
          doc.select("table").attr("cellspacing","0px")
          .attr("cellpadding","0px").attr("border-collapse","collapse");
          return doc.outerHtml();
      }
  
      /**
       *  html转doc
       * @param file  输出doc文件
       * @param html  html文本内容
       * @throws Exception
       */
      public static void html2doc(File file, String html)  {
          logger.info("开始html--->doc");
          try {
              WordprocessingMLPackage wordMLPackage = WordprocessingMLPackage.createPackage();
              String table = "<style type=\"text/css\"> table td{border:1px solid #000000} </style>";
              String htmlContent = "<html><head><title></title>"+table+"</head><body>"+html+"</body></html>";
              htmlContent = processDocStyle(htmlContent);
              wordMLPackage.getMainDocumentPart().addAltChunk(AltChunkType.Html, htmlContent.getBytes());
              wordMLPackage.save(file);
              //上传至文件服务器  删除零时文件 .. 将此返回值改为String url入库
  //            String url =  FileUploadUtil.upload(fileByte, name, true);
          } catch (Docx4JException e) {
              e.printStackTrace();
              logger.error("html转doc出错:{}",e.getMessage());
          }
          logger.info("转换完成html--->doc");
  
      }
  
      public static void main(String[] args) throws Exception {
  //        doc2Html(new File("c:/优化规则.doc"));
        html2doc(new File("d:/优化规则.doc"),FileUtils.readFileToString(new File("c:/优化规则.html"),"UTF-8"));
      }
  }