/*Uploading files and his division for line in line. Save in database*/
    @RequestMapping(value = "/upload", method = RequestMethod.POST)
    public @ResponseBody String handleFileUpload(@RequestParam("file")MultipartFile file){
        if (!file.isEmpty()) {
            try {
                byte[] bytes = file.getBytes();

                String completeData = new String(bytes);

                BufferedOutputStream stream =
                        new BufferedOutputStream(new FileOutputStream(new File( "-uploaded")));
                stream.write(bytes);
                stream.close();

                /*Data for doc_add_date*/
                Calendar calendar_add_date = Calendar.getInstance();
                Timestamp doc_add_date = new Timestamp(calendar_add_date.getTime().getTime());

                /*Data for doc_mod_date*/
                Calendar calendar_mod_date = Calendar.getInstance();
                Timestamp doc_mod_date = new Timestamp(calendar_mod_date.getTime().getTime());

                /*generation UUID*/
                UUID uuid = UUID.randomUUID();
                String uuidStr = uuid.toString();
                /*Result*/
                dao.add_b_utmdocs(completeData, doc_add_date, doc_mod_date, uuidStr);

                return "redirect:/home";
            }
    }