이전과 비슷하다.

@Getter @Setter
public class BookForm {

	private Long id;

	private String name;

	private int price;

	private int stockQuantity;

	private String author;

	private String isbn;
}

@Controller
@RequiredArgsConstructor
public class ItemController {

	private final ItemService itemService;

	@GetMapping("/items/new")
	public String createForm(Model model) {
		model.addAttribute("form", new BookForm());

		return "items/createItemForm";
	}

	@PostMapping("/items/new")
	public String create(BookForm form) {
		Book book = new Book();
		book.setName(form.getName());
		book.setPrice(form.getPrice());
		book.setStockQuantity(form.getStockQuantity());
		book.setAuthor(form.getAuthor());
		book.setIsbn(form.getIsbn());

		itemService.save(book);

		return "redirect:/items";
	}
}

• builder나 create메소드를 쓰고 setter를 제거하는 것이 좋다.