상품 주문 웹 계층 개발

컨트롤러

@Controller
@RequiredArgsConstructor
public class OrderController {

    private final OrderService orderService;
    private final MemberService memberService;
    private final ItemService itemService;

    /**
     * 상품 주문 뷰
     */
    @GetMapping("/order")
    public String createForm(Model model) {
        List<Member> members = memberService.findMembers();
        List<Item> items = itemService.findItems();
        
        model.addAttribute("members", members);
        model.addAttribute("items", items);
        return "order/orderForm";
    }

    /**
     * 상품 주문 뷰에서 넘어온 데이터로 상품 주문
     */
    @PostMapping("/order")
    public String order(@RequestParam("memberId") Long memberId,
                        @RequestParam("itemId") Long itemId,
                        @RequestParam("count") int count) {
        
        orderService.order(memberId, itemId, count);
        return "redirect:/orders";
    }

    /**
     * 상품 전체 조회 뷰
     */
    @GetMapping("/orders")
    public String orderList(@ModelAttribute("orderSearch") OrderSearch orderSearch, Model model) {
        List<Order> orders = orderService.findOrders(orderSearch);
        model.addAttribute("orders", orders);
        return "order/orderList";
    }

    /**
     * 상품 주문 취소
     */
    @PostMapping("/orders/{orderId}/cancel")
    public String cancelOrder(@PathVariable("orderId") Long orderId) {
        orderService.cancelOrder(orderId);
        return "redirect:/orders";
    }
}