java项目word文件转html文件

最近在项目开发中用户提出要在电脑上没有装office时在浏览器中打开word文件，最后确定的逻辑：用户选择想要查看的文件，页面js判断文件是否为word。不是执行下载，是后端根据word文件后缀访问对应转换方法。文件已存在对应html文件直接返回html文件地址，不存在先生成对应html文件再返回地址。js直接通过open()打开新的页签，展示word文件内容。新人一枚，如果代码中存在错误或有更好的实现万望指正！

相关jar包

代码

import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;

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.xhtml.XHTMLConverter;
import org.apache.poi.xwpf.converter.xhtml.XHTMLOptions;
import org.apache.poi.xwpf.usermodel.XWPFDocument;
import org.w3c.dom.Document;

/**
 * word 转换成html 2017-2-27
 */
public class WordToHtml {

    /**
     * 将word2003转换为html文件 2017-2-27
     * @param wordPath word文件路径
     * @param wordName word文件名称无后缀
     * @param suffix   word文件后缀
     * @throws IOException
     * @throws TransformerException
     * @throws ParserConfigurationException
     */
    public String Word2003ToHtml(String wordPath,String wordName,String suffix) throws IOException, TransformerException, ParserConfigurationException {
        String htmlPath = wordPath + File.separator + wordName + "_show" + File.separator;
        String htmlName = wordName + ".html";
        final String imagePath = htmlPath  + "image" + File.separator;

        //判断html文件是否存在
        File htmlFile = new File(htmlPath + htmlName);
        if(htmlFile.exists()){
            return htmlFile.getAbsolutePath();
        }

        //原word文档
        final String file = wordPath + File.separator + wordName + suffix;
        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();
                }
                //图片在html文件上的路径 相对路径
                return "image/" + suggestedName;
            }
        });

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

        //生成html文件上级文件夹
        File folder = new File(htmlPath);
        if(!folder.exists()){
            folder.mkdirs();
        }

        //生成html文件地址
        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();

        return htmlFile.getAbsolutePath();
    }

    /**
     * 2007版本word转换成html 2017-2-27
     * @param wordPath word文件路径
     * @param wordName word文件名称无后缀
     * @param suffix   word文件后缀
     * @return
     * @throws IOException
     */
    public String Word2007ToHtml(String wordPath,String wordName,String suffix) throws IOException {
        String htmlPath = wordPath + File.separator + wordName + "_show" + File.separator;
        String htmlName = wordName + ".html";
        String imagePath = htmlPath  + "image" + File.separator;

        //判断html文件是否存在
        File htmlFile = new File(htmlPath + htmlName);
        if(htmlFile.exists()){
            return htmlFile.getAbsolutePath();
        }

        //word文件
        File wordFile = new File(wordPath + File.separator + wordName + suffix);  

        // 1) 加载word文档生成 XWPFDocument对象
        InputStream in = new FileInputStream(wordFile);
        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 imgFolder = new File(imagePath);
        XHTMLOptions options = XHTMLOptions.create();
        options.setExtractor(new FileImageExtractor(imgFolder));
        //html中图片的路径 相对路径
        options.URIResolver(new BasicURIResolver("image"));
        options.setIgnoreStylesIfUnused(false);
        options.setFragment(true);  

        // 3) 将 XWPFDocument转换成XHTML
        //生成html文件上级文件夹
        File folder = new File(htmlPath);
        if(!folder.exists()){
            folder.mkdirs();
        }
        OutputStream out = new FileOutputStream(htmlFile);
        XHTMLConverter.getInstance().convert(document, out, options);

        return htmlFile.getAbsolutePath();
    }
}

文件目录