CommonsMultipartFile文件上传
<input name="fanswerSite_" type="file" id="fanswerSite_" size="40" />
MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request;CommonsMultipartFile orginalFile = (CommonsMultipartFile) multipartRequest.getFile("fanswerSite_");// String uploadFileName = fileUtil.upload(request.getSession().getServletContext().getRealPath("/"), PHOTO_UPLOAD_PATH, orginalFile);