引用
jsp:<form id="doTaskForm" action="${ctx }/student/task/uploadTask" enctype="multipart/form-data" method="post">
<input name="fanswerSite_" type="file" id="fanswerSite_" size="40" />
<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);