RequestContext requestContext = new ServletRequestContext(request);
boolean isMultipart = FileUpload.isMultipartContent(requestContext);

DiskFileItemFactory factory = DiskFileItemFactory();
ServletFileUpload upload = ServletFileUpload(factory);

//获得表单提交de对象,itemList就是所有字段集合，可以循环获取

List<FileItem> itemList = upload.parseRequest(request);

FileItem item = itemList.get(0);
//某个字段的值
log.info("uuid="+itemList.get(1).getString());