Goyummy

상품 수정 @GetMapping("/items/{itemId}/edit") public String updateItemForm(@PathVariable("itemId") Long itemId, Model model) { Book item = (Book) itemService.findOne(itemId); BookForm form = new BookForm(); form.setId(item.getId()); form.setName(item.getName()); form.setPrice(item.getPrice()); form.setStockQuantity(item.getStockQuantity()); form..

주문 도메인 개발@Entity@Table(name = "orders")@Getter @Setterpublic class Order { @Id @GeneratedValue @Column(name = "order_id") private Long id; @ManyToOne(fetch = FetchType.LAZY) //여러 상품이 하나의 고객에 의해 @JoinColumn(name = "member_id") private Member member; @OneToMany(mappedBy = "order", cascade = CascadeType.ALL) private List orderItems = new ArrayList(); @OneToOne(fetch = Fet..

상품 엔티티 개발(비즈니스 로직 추가) @Entity@Inheritance(strategy = InheritanceType.SINGLE_TABLE)@DiscriminatorColumn(name = "dtype")@Getter @Setterpublic class Item { @Id @GeneratedValue @Column(name = "item_id") private Long id; private String name; private int price; private int stockQuantity; @ManyToMany(mappedBy = "items") private List categories = new ArrayList(); //==비즈니스 로..

https://www.acmicpc.net/problem/2108import sysimport mathN = int(sys.stdin.readline())nums = []for i in range(N): n = int(sys.stdin.readline()) nums.append(n)length = len(nums)nums.sort()print(round(sum(nums) / length)) # 산술 평균print(nums[length // 2]) #중앙값mode_cnt = {}for i in nums: if i in mode_cnt: mode_cnt[i] += 1 else: mode_cnt[i] = 1max_cnt = max(mode_cnt.values())..

https://www.acmicpc.net/problem/3187import sysfrom collections import dequeinput = sys.stdin.readlineR, C = map(int, input().split())map = []for i in range(R): map.append(list(input().strip()))visited = [[0] * C for i in range(R)]dx = [-1, 1, 0, 0]dy = [0, 0, -1, 1]wolf = 0sheep = 0queue = deque()def bfs(i, j): queue.append((i, j)) visited[i][j] = 1 wolf_count, sheep_count = 0, 0 ..

회원 리포지토리 개발@Repositorypublic class MemberRepository { @PersistenceContext private EntityManager em; public void save(Member member) { em.persist(member); } public Member findOne(Long id) { return em.find(Member.class, id); } public List findAll() { //여러건 검색은 em.createQuery로 JPQL 작성 return em.createQuery("select m from Member m", Member.class) ..