public String createRoom() { try { // log.info("call upload..."); // log.log(Level.INFO, "content-type:{0}", file.getContentType()); // log.log(Level.INFO, "filename:{0}", file.getName()); // log.log(Level.INFO, "submitted filename:{0}", file.getSubmittedFileName()); Date date = new Date(); DateFormat dateFormat = new SimpleDateFormat("yyyyMMddHHmmss"); roomImageFileNames = new ArrayList<>(); List<Part> files = new ArrayList<Part>(); files.add(thumbnail); files.add(file1); files.add(file2); files.add(file3); // Uploading room image for (Part itemFile : files) { if (itemFile == null) { continue; } InputStream inputStream = itemFile.getInputStream(); String fileName = dateFormat.format(date) + getFilename(itemFile); roomImageFileNames.add(fileName); File file = new File("C:/room4u/images/" + fileName); FileOutputStream outputStream = new FileOutputStream(file); if (!file.exists()) { file.createNewFile(); } byte[] buffer = new byte[6096]; int bytesRead = 0; while (true) { bytesRead = inputStream.read(buffer); if (bytesRead > 0) { outputStream.write(buffer, 0, bytesRead); } else { break; } } outputStream.close(); inputStream.close(); } // FacesContext.getCurrentInstance().addMessage(null, new FacesMessage("Room is // created!")); room.setAccomId(1); Customer cust = customerFacade.find(1); room.setCustId(cust); room.setAddress(houseNumber + " " + street + " " + ward + " " + district + " " + city); room.setCreatedDate(date); room.setCreatedBy("Can"); // Store Image File name as json string. RoomImage roomImage = new RoomImage(); roomImage.setThumbnail(roomImageFileNames.get(0)); roomImage.setSlider1(roomImageFileNames.get(1)); roomImage.setSlider2(roomImageFileNames.get(2)); roomImage.setSlider3(roomImageFileNames.get(3)); Gson gson = new Gson(); String jsonImage = gson.toJson(roomImage); room.setImages(jsonImage); accommodationFacade.create(room); // RequestContext.getCurrentInstance().execute("alert('peek-a-boo');"); } catch (Exception ex) { printStackTrace(); } return "index"; }