java实现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();
}
}

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