poi把word文档转换成html文件编码问题

public static String docx2html(File file, File outPutPath,String htmlFileName) {

		InputStream in=null;

		OutputStream out=null;

		XWPFDocument document=null;

		String outPutFile=outPutPath+File.separator+htmlFileName;

		try{

		// 1) 加载word文档生成 XWPFDocument对象

		 in = new FileInputStream(file);

		 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)

		final File imagePath=new File(outPutPath+File.separator+"image");

		String img=SysConfig.getStrValue("upload_file_pre")+File.separator+imagePath;

		final File url=new File(img);

		if (!imagePath.exists() || !imagePath.isDirectory()) {

			imagePath.mkdirs();

		}

		XHTMLOptions options = XHTMLOptions.create().indent(4);

		options.URIResolver(new FileURIResolver(url));

		options.setExtractor(new FileImageExtractor(imagePath));

		options.setIgnoreStylesIfUnused(false);

		options.setFragment(true);



		// 3) 将 XWPFDocument转换成XHTML

	    out = new FileOutputStream(new File(outPutFile));

		XHTMLConverter.getInstance().convert(document, out, options);

		

        }catch(Exception e){

        	logger.error(e.getMessage(),e);

        }finally{

        	close(out,document,in);

        }