Open positoy opened 5 months ago
첨부된 이미지들은 중고거래 애플리케이션의 캡처 화면이야. 첨부된 애플리케이션을 개발하려고 해. 화면에서 확인할 수 있는 엔티티와 각 엔티티의 속성을 정리해줘.
위 서비스와 동일한 애플리케이션을 복제하기 위해 필요한 엔티티는 다음과 같습니다. 엔티티는 데이터베이스 테이블 혹은 객체지향 프로그래밍에서 클래스와 유사하게 데이터와 그 관계를 정의합니다.
이와 같이 엔티티를 정의하고, 이들 간의 관계를 설정함으로써 애플리케이션의 데이터 구조를 설계할 수 있습니다. 각 엔티티는 서로 관계를 맺고 있으며, 이러한 관계를 통해 사용자는 중고거래, 모임 참여, 지역 커뮤니티 활동 등을 수행할 수 있습니다.
mermaid 문법 이용해서 클래스 다이어그램으로 그려줘
classDiagram
class User {
int userID
String name
String profilePicture
Location location
float accountBalance
List~Category~ recentCategories
List~Item~ wishlist
List~Item~ saleHistory
List~Item~ purchaseHistory
void getProfile()
void addToWishlist(Item item)
void postItem(Item item)
}
class Post {
int postID
String title
String content
User author
Category category
Location location
DateTime createdAt
int viewCount
int likeCount
int commentCount
}
class Meeting {
int meetingID
String name
String description
String image
List~User~ participants
Location location
}
class Item {
int itemID
String name
String description
float price
String image
User seller
User buyer
Location location
DateTime postedAt
int likeCount
List~ChatRoom~ chatRooms
}
class Service {
int serviceID
String name
String description
Category category
String image
Location location
String provider
}
class Chat {
int chatID
List~User~ participants
String content
DateTime timestamp
}
class ChatRoom {
int chatRoomID
List~User~ participants
Chat recentMessage
DateTime lastActive
}
class Category {
int categoryID
String name
}
class Location {
int locationID
String name
float latitude
float longitude
}
User "1" -- "*" Post : writes
User "1" -- "*" Item : sells
User "1" -- "*" Item : buys
User "1" -- "*" ChatRoom : participates
User "1" -- "*" Meeting : joins
Post "1" -- "1" Location : locatedAt
Post "1" -- "1" Category : belongsTo
Meeting "1" -- "1" Location : heldAt
Meeting "1" -- "*" User : attendedBy
Item "1" -- "1" Location : locatedAt
Item "1" -- "1" User : soldBy
Item "0..1" -- "1" User : boughtBy
Item "1" -- "*" ChatRoom : discussedIn
Service "1" -- "1" Category : categorizedAs
Service "1" -- "1" Location : locatedAt
ChatRoom "1" -- "*" User : includes
ChatRoom "1" -- "1" Chat : hasRecent
Chat "1" -- "*" User : sentBy
mermaid 문법 이용해서 ER 다이어그램으로 그려줘
erDiagram
USER {
int userID PK
String name
String profilePicture
int locationID FK
float accountBalance
}
POST {
int postID PK
String title
String content
int authorID FK
int categoryID FK
int locationID FK
DateTime createdAt
int viewCount
int likeCount
int commentCount
}
MEETING {
int meetingID PK
String name
String description
String image
int locationID FK
}
ITEM {
int itemID PK
String name
String description
float price
String image
int sellerID FK
int buyerID FK
int locationID FK
DateTime postedAt
int likeCount
}
SERVICE {
int serviceID PK
String name
String description
int categoryID FK
String image
int locationID FK
String provider
}
CHAT {
int chatID PK
String content
DateTime timestamp
}
CHATROOM {
int chatRoomID PK
int recentMessageID FK
DateTime lastActive
}
CATEGORY {
int categoryID PK
String name
}
LOCATION {
int locationID PK
String name
float latitude
float longitude
}
USER ||--o{ LOCATION : "lives in"
USER ||--o{ POST : "writes"
USER ||--o{ ITEM : "sells"
USER ||--o{ ITEM : "buys"
USER ||--o{ MEETING : "joins"
USER ||--o{ CHATROOM : "participates in"
USER ||--o{ CHAT : "sends"
POST ||--|| LOCATION : "located at"
POST ||--|| CATEGORY : "belongs to"
POST }o--|| USER : "authored by"
MEETING ||--|| LOCATION : "held at"
MEETING }o--o{ USER : "attended by"
ITEM ||--|| LOCATION : "located at"
ITEM }o--|| USER : "sold by"
ITEM }o--o| USER : "bought by"
SERVICE ||--|| CATEGORY : "categorized as"
SERVICE ||--|| LOCATION : "located at"
CHATROOM }o--o{ USER : "includes"
CHATROOM }o--|| CHAT : "has recent"
CHAT }o--o{ USER : "sent by"
클래스 다이어그램에서 유추할 수 있는 feature list 출력해줘. 주요기능과 각 기능에서 세부적인 기능으로 나눠서 출력해줘.
클래스 다이어그램을 바탕으로 중고거래 애플리케이션에서 제공할 수 있는 주요 기능과 각 기능의 세부적인 기능을 다음과 같이 정리할 수 있습니다.
이와 같이 각 엔티티에 대해 제공할 수 있는 기능들을 주요 기능과 세부 기능으로 나눌 수 있습니다. 이를 통해 중고거래 애플리케이션의 전체적인 기능 요구사항을 도출할 수 있습니다.
spring boot 이용해서 백엔드를 작성하려고 해. 작성해야 할 컴포넌트와 메소드 정리해줘
Spring Boot를 이용한 중고거래 애플리케이션의 백엔드를 작성하려면 여러 가지 컴포넌트와 메소드를 정의해야 합니다. 엔티티, 리포지토리, 서비스, 컨트롤러 계층으로 구성된 기본적인 구조를 따를 수 있습니다. 각 계층에서 필요한 컴포넌트와 메소드를 다음과 같이 정리할 수 있습니다.
엔티티 클래스는 데이터베이스 테이블과 매핑되는 클래스입니다.
@Entity
public class User {
@Id @GeneratedValue(strategy = GenerationType.IDENTITY)
private int userID;
private String name;
private String profilePicture;
@Embedded
private Location location;
private float accountBalance;
@OneToMany
private List<Category> recentCategories;
@OneToMany
private List<Item> wishlist;
@OneToMany(mappedBy = "seller")
private List<Item> saleHistory;
@OneToMany(mappedBy = "buyer")
private List<Item> purchaseHistory;
// Getters and Setters
}
@Entity
public class Post {
@Id @GeneratedValue(strategy = GenerationType.IDENTITY)
private int postID;
private String title;
private String content;
@ManyToOne
private User author;
@ManyToOne
private Category category;
@Embedded
private Location location;
private DateTime createdAt;
private int viewCount;
private int likeCount;
private int commentCount;
// Getters and Setters
}
@Entity
public class Meeting {
@Id @GeneratedValue(strategy = GenerationType.IDENTITY)
private int meetingID;
private String name;
private String description;
private String image;
@ManyToMany
private List<User> participants;
@Embedded
private Location location;
// Getters and Setters
}
@Entity
public class Item {
@Id @GeneratedValue(strategy = GenerationType.IDENTITY)
private int itemID;
private String name;
private String description;
private float price;
private String image;
@ManyToOne
private User seller;
@ManyToOne
private User buyer;
@Embedded
private Location location;
private DateTime postedAt;
private int likeCount;
@OneToMany
private List<ChatRoom> chatRooms;
// Getters and Setters
}
@Entity
public class Service {
@Id @GeneratedValue(strategy = GenerationType.IDENTITY)
private int serviceID;
private String name;
private String description;
@ManyToOne
private Category category;
private String image;
@Embedded
private Location location;
private String provider;
// Getters and Setters
}
@Entity
public class Chat {
@Id @GeneratedValue(strategy = GenerationType.IDENTITY)
private int chatID;
@ManyToMany
private List<User> participants;
private String content;
private DateTime timestamp;
// Getters and Setters
}
@Entity
public class ChatRoom {
@Id @GeneratedValue(strategy = GenerationType.IDENTITY)
private int chatRoomID;
@ManyToMany
private List<User> participants;
@OneToOne
private Chat recentMessage;
private DateTime lastActive;
// Getters and Setters
}
@Entity
public class Category {
@Id @GeneratedValue(strategy = GenerationType.IDENTITY)
private int categoryID;
private String name;
// Getters and Setters
}
@Embeddable
public class Location {
private int locationID;
private String name;
private float latitude;
private float longitude;
// Getters and Setters
}
리포지토리 인터페이스는 데이터베이스와의 상호작용을 담당합니다.
public interface UserRepository extends JpaRepository<User, Integer> {
}
public interface PostRepository extends JpaRepository<Post, Integer> {
}
public interface MeetingRepository extends JpaRepository<Meeting, Integer> {
}
public interface ItemRepository extends JpaRepository<Item, Integer> {
}
public interface ServiceRepository extends JpaRepository<Service, Integer> {
}
public interface ChatRepository extends JpaRepository<Chat, Integer> {
}
public interface ChatRoomRepository extends JpaRepository<ChatRoom, Integer> {
}
public interface CategoryRepository extends JpaRepository<Category, Integer> {
}
서비스 클래스는 비즈니스 로직을 처리합니다.
@Service
public class UserService {
@Autowired
private UserRepository userRepository;
public User getUserById(int id) {
return userRepository.findById(id).orElse(null);
}
public User createUser(User user) {
return userRepository.save(user);
}
public void addToWishlist(int userId, Item item) {
User user = getUserById(userId);
if (user != null) {
user.getWishlist().add(item);
userRepository.save(user);
}
}
public void postItem(int userId, Item item) {
User user = getUserById(userId);
if (user != null) {
user.getSaleHistory().add(item);
item.setSeller(user);
userRepository.save(user);
}
}
}
@Service
public class PostService {
@Autowired
private PostRepository postRepository;
public List<Post> getAllPosts() {
return postRepository.findAll();
}
public Post createPost(Post post) {
return postRepository.save(post);
}
}
@Service
public class MeetingService {
@Autowired
private MeetingRepository meetingRepository;
public List<Meeting> getAllMeetings() {
return meetingRepository.findAll();
}
public Meeting createMeeting(Meeting meeting) {
return meetingRepository.save(meeting);
}
}
@Service
public class ItemService {
@Autowired
private ItemRepository itemRepository;
public List<Item> getAllItems() {
return itemRepository.findAll();
}
public Item createItem(Item item) {
return itemRepository.save(item);
}
}
@Service
public class ServiceService {
@Autowired
private ServiceRepository serviceRepository;
public List<Service> getAllServices() {
return serviceRepository.findAll();
}
public Service createService(Service service) {
return serviceRepository.save(service);
}
}
@Service
public class ChatService {
@Autowired
private ChatRepository chatRepository;
public List<Chat> getAllChats() {
return chatRepository.findAll();
}
public Chat createChat(Chat chat) {
return chatRepository.save(chat);
}
}
@Service
public class ChatRoomService {
@Autowired
private ChatRoomRepository chatRoomRepository;
public List<ChatRoom> getAllChatRooms() {
return chatRoomRepository.findAll();
}
public ChatRoom createChatRoom(ChatRoom chatRoom) {
return chatRoomRepository.save(chatRoom);
}
}
@Service
public class CategoryService {
@Autowired
private CategoryRepository categoryRepository;
public List<Category> getAllCategories() {
return categoryRepository.findAll();
}
public Category createCategory(Category category) {
return categoryRepository.save(category);
}
}
컨트롤러 클래스는 HTTP 요청을 처리합니다.
@RestController
@RequestMapping("/api/users")
public class UserController {
@Autowired
private UserService userService;
@GetMapping("/{id}")
public ResponseEntity<User> getUserById(@PathVariable int id) {
User user = userService.getUserById(id);
return ResponseEntity.ok(user);
}
@PostMapping
public ResponseEntity<User> createUser(@RequestBody User user) {
User createdUser = userService.createUser(user);
return ResponseEntity.status(HttpStatus.CREATED).body(createdUser);
}
@PostMapping("/{userId}/wishlist")
public ResponseEntity<Void> addToWishlist(@PathVariable int userId, @RequestBody Item item) {
userService.addToWishlist(userId, item);
return ResponseEntity.ok().build();
}
@PostMapping("/{userId}/items")
public ResponseEntity<Void> postItem(@PathVariable int userId, @RequestBody Item item) {
userService.postItem(userId, item);
return ResponseEntity.ok().build();
}
}
@RestController
@RequestMapping("/api/posts")
public class PostController {
@Autowired
private PostService postService;
@GetMapping
public ResponseEntity<List<Post>> getAllPosts() {
List<Post> posts = postService.getAllPosts();
return ResponseEntity.ok(posts);
}
@PostMapping
public ResponseEntity<Post> createPost(@RequestBody Post post) {
Post createdPost = postService.createPost(post);
return ResponseEntity.status(HttpStatus.CREATED).body(createdPost);
}
}
@RestController
@RequestMapping("/api/meetings")
public class MeetingController {
@Autowired
private MeetingService meetingService;
@GetMapping
public ResponseEntity<List<Meeting>> getAllMeetings() {
List<Meeting> meetings = meetingService.getAllMeetings();
return ResponseEntity.ok(meetings);
}
@PostMapping
public ResponseEntity<Meeting> createMeeting(@RequestBody Meeting meeting) {
Meeting createdMeeting = meetingService.createMeeting(meeting);
return ResponseEntity.status(HttpStatus.CREATED).body(createdMeeting);
}
}
@RestController
@RequestMapping("/api/items")
public class ItemController {
@Autowired
private ItemService itemService;
@
GetMapping
public ResponseEntity<List<Item>> getAllItems() {
List<Item> items = itemService.getAllItems();
return ResponseEntity.ok(items);
}
@PostMapping
public ResponseEntity<Item> createItem(@RequestBody Item item) {
Item createdItem = itemService.createItem(item);
return ResponseEntity.status(HttpStatus.CREATED).body(createdItem);
}
}
@RestController
@RequestMapping("/api/services")
public class ServiceController {
@Autowired
private ServiceService serviceService;
@GetMapping
public ResponseEntity<List<Service>> getAllServices() {
List<Service> services = serviceService.getAllServices();
return ResponseEntity.ok(services);
}
@PostMapping
public ResponseEntity<Service> createService(@RequestBody Service service) {
Service createdService = serviceService.createService(service);
return ResponseEntity.status(HttpStatus.CREATED).body(createdService);
}
}
@RestController
@RequestMapping("/api/chats")
public class ChatController {
@Autowired
private ChatService chatService;
@GetMapping
public ResponseEntity<List<Chat>> getAllChats() {
List<Chat> chats = chatService.getAllChats();
return ResponseEntity.ok(chats);
}
@PostMapping
public ResponseEntity<Chat> createChat(@RequestBody Chat chat) {
Chat createdChat = chatService.createChat(chat);
return ResponseEntity.status(HttpStatus.CREATED).body(createdChat);
}
}
@RestController
@RequestMapping("/api/chatrooms")
public class ChatRoomController {
@Autowired
private ChatRoomService chatRoomService;
@GetMapping
public ResponseEntity<List<ChatRoom>> getAllChatRooms() {
List<ChatRoom> chatRooms = chatRoomService.getAllChatRooms();
return ResponseEntity.ok(chatRooms);
}
@PostMapping
public ResponseEntity<ChatRoom> createChatRoom(@RequestBody ChatRoom chatRoom) {
ChatRoom createdChatRoom = chatRoomService.createChatRoom(chatRoom);
return ResponseEntity.status(HttpStatus.CREATED).body(createdChatRoom);
}
}
@RestController
@RequestMapping("/api/categories")
public class CategoryController {
@Autowired
private CategoryService categoryService;
@GetMapping
public ResponseEntity<List<Category>> getAllCategories() {
List<Category> categories = categoryService.getAllCategories();
return ResponseEntity.ok(categories);
}
@PostMapping
public ResponseEntity<Category> createCategory(@RequestBody Category category) {
Category createdCategory = categoryService.createCategory(category);
return ResponseEntity.status(HttpStatus.CREATED).body(createdCategory);
}
}
이와 같이, 엔티티 클래스, 리포지토리 인터페이스, 서비스 클래스, 컨트롤러 클래스를 정의하여 Spring Boot 기반의 중고거래 애플리케이션 백엔드를 작성할 수 있습니다. 각 컴포넌트는 필요한 비즈니스 로직과 데이터베이스 상호작용을 처리하며, HTTP 요청을 통해 클라이언트와 소통합니다.
spring boot 코드에서 엔티티와 dto 가 분리되고, 각 엔티티와 관련된 동작이 해당 메소드에 내부에 정의되면 좋겠어.
예를 들어서, 사용자를 만들 때에는 controller 가 UserCreate 요청을 받아서 User의 create 메소드에 파라미터로 전달하면 User 가 생성되었으면 좋겠어.
위에 코드를 전부 재구성해줄 수 있어?
네, 엔티티와 DTO(Data Transfer Object)를 분리하고, 엔티티 내에서 관련 동작을 정의하는 방식으로 코드를 재구성해보겠습니다.
@Entity
public class User {
@Id @GeneratedValue(strategy = GenerationType.IDENTITY)
private int userID;
private String name;
private String profilePicture;
@Embedded
private Location location;
private float accountBalance;
@OneToMany
private List<Category> recentCategories;
@OneToMany
private List<Item> wishlist;
@OneToMany(mappedBy = "seller")
private List<Item> saleHistory;
@OneToMany(mappedBy = "buyer")
private List<Item> purchaseHistory;
public static User create(UserCreateRequest request) {
User user = new User();
user.setName(request.getName());
user.setProfilePicture(request.getProfilePicture());
user.setLocation(request.getLocation());
user.setAccountBalance(request.getAccountBalance());
return user;
}
public void addToWishlist(Item item) {
this.wishlist.add(item);
}
public void postItem(Item item) {
this.saleHistory.add(item);
item.setSeller(this);
}
// Getters and Setters
}
@Entity
public class Post {
@Id @GeneratedValue(strategy = GenerationType.IDENTITY)
private int postID;
private String title;
private String content;
@ManyToOne
private User author;
@ManyToOne
private Category category;
@Embedded
private Location location;
private DateTime createdAt;
private int viewCount;
private int likeCount;
private int commentCount;
public static Post create(PostCreateRequest request, User author) {
Post post = new Post();
post.setTitle(request.getTitle());
post.setContent(request.getContent());
post.setCategory(request.getCategory());
post.setLocation(request.getLocation());
post.setAuthor(author);
post.setCreatedAt(new DateTime());
return post;
}
// Getters and Setters
}
@Entity
public class Meeting {
@Id @GeneratedValue(strategy = GenerationType.IDENTITY)
private int meetingID;
private String name;
private String description;
private String image;
@ManyToMany
private List<User> participants;
@Embedded
private Location location;
public static Meeting create(MeetingCreateRequest request) {
Meeting meeting = new Meeting();
meeting.setName(request.getName());
meeting.setDescription(request.getDescription());
meeting.setImage(request.getImage());
meeting.setLocation(request.getLocation());
return meeting;
}
// Getters and Setters
}
@Entity
public class Item {
@Id @GeneratedValue(strategy = GenerationType.IDENTITY)
private int itemID;
private String name;
private String description;
private float price;
private String image;
@ManyToOne
private User seller;
@ManyToOne
private User buyer;
@Embedded
private Location location;
private DateTime postedAt;
private int likeCount;
@OneToMany
private List<ChatRoom> chatRooms;
public static Item create(ItemCreateRequest request, User seller) {
Item item = new Item();
item.setName(request.getName());
item.setDescription(request.getDescription());
item.setPrice(request.getPrice());
item.setImage(request.getImage());
item.setLocation(request.getLocation());
item.setSeller(seller);
item.setPostedAt(new DateTime());
return item;
}
// Getters and Setters
}
@Entity
public class Service {
@Id @GeneratedValue(strategy = GenerationType.IDENTITY)
private int serviceID;
private String name;
private String description;
@ManyToOne
private Category category;
private String image;
@Embedded
private Location location;
private String provider;
public static Service create(ServiceCreateRequest request) {
Service service = new Service();
service.setName(request.getName());
service.setDescription(request.getDescription());
service.setCategory(request.getCategory());
service.setImage(request.getImage());
service.setLocation(request.getLocation());
service.setProvider(request.getProvider());
return service;
}
// Getters and Setters
}
@Entity
public class Chat {
@Id @GeneratedValue(strategy = GenerationType.IDENTITY)
private int chatID;
@ManyToMany
private List<User> participants;
private String content;
private DateTime timestamp;
public static Chat create(ChatCreateRequest request, List<User> participants) {
Chat chat = new Chat();
chat.setContent(request.getContent());
chat.setTimestamp(new DateTime());
chat.setParticipants(participants);
return chat;
}
// Getters and Setters
}
@Entity
public class ChatRoom {
@Id @GeneratedValue(strategy = GenerationType.IDENTITY)
private int chatRoomID;
@ManyToMany
private List<User> participants;
@OneToOne
private Chat recentMessage;
private DateTime lastActive;
public static ChatRoom create(ChatRoomCreateRequest request, List<User> participants) {
ChatRoom chatRoom = new ChatRoom();
chatRoom.setParticipants(participants);
chatRoom.setLastActive(new DateTime());
return chatRoom;
}
// Getters and Setters
}
@Entity
public class Category {
@Id @GeneratedValue(strategy = GenerationType.IDENTITY)
private int categoryID;
private String name;
public static Category create(CategoryCreateRequest request) {
Category category = new Category();
category.setName(request.getName());
return category;
}
// Getters and Setters
}
@Embeddable
public class Location {
private int locationID;
private String name;
private float latitude;
private float longitude;
// Getters and Setters
}
public class UserCreateRequest {
private String name;
private String profilePicture;
private Location location;
private float accountBalance;
// Getters and Setters
}
public class PostCreateRequest {
private String title;
private String content;
private Category category;
private Location location;
// Getters and Setters
}
public class MeetingCreateRequest {
private String name;
private String description;
private String image;
private Location location;
// Getters and Setters
}
public class ItemCreateRequest {
private String name;
private String description;
private float price;
private String image;
private Location location;
// Getters and Setters
}
public class ServiceCreateRequest {
private String name;
private String description;
private Category category;
private String image;
private Location location;
private String provider;
// Getters and Setters
}
public class ChatCreateRequest {
private String content;
// Getters and Setters
}
public class ChatRoomCreateRequest {
// No fields necessary for this example
}
public class CategoryCreateRequest {
private String name;
// Getters and Setters
}
public interface UserRepository extends JpaRepository<User, Integer> {
}
public interface PostRepository extends JpaRepository<Post, Integer> {
}
public interface MeetingRepository extends JpaRepository<Meeting, Integer> {
}
public interface ItemRepository extends JpaRepository<Item, Integer> {
}
public interface ServiceRepository extends JpaRepository<Service, Integer> {
}
public interface ChatRepository extends JpaRepository<Chat, Integer> {
}
public interface ChatRoomRepository extends JpaRepository<ChatRoom, Integer> {
}
public interface CategoryRepository extends JpaRepository<Category, Integer> {
}
@Service
public class UserService {
@Autowired
private UserRepository userRepository;
public User createUser(UserCreateRequest request) {
User user = User.create(request);
return userRepository.save(user);
}
public void addToWishlist(int userId, Item item) {
User user = userRepository.findById(userId).orElseThrow();
user.addToWishlist(item);
userRepository.save(user);
}
public void postItem(int userId, ItemCreateRequest itemRequest) {
User user = userRepository.findById(userId).orElseThrow();
Item item = Item.create(itemRequest, user);
user.postItem(item);
userRepository.save(user);
}
}
@Service
public class PostService {
@Autowired
private PostRepository postRepository;
@Autowired
private UserRepository userRepository;
public Post createPost(PostCreateRequest request, int userId) {
User author = userRepository.findById(userId).orElseThrow();
Post post = Post.create(request, author);
return postRepository.save(post);
}
}
@Service
public class MeetingService {
@Autowired
private MeetingRepository meetingRepository;
public Meeting createMeeting(MeetingCreateRequest request) {
Meeting meeting = Meeting.create(request);
return meetingRepository.save(meeting);
}
}
@Service
public class ItemService {
@Autowired
private ItemRepository itemRepository;
public Item createItem(ItemCreateRequest request, User seller) {
Item item = Item.create(request, seller);
return itemRepository.save(item);
}
}
@Service
public class ServiceService {
@Autowired
private ServiceRepository serviceRepository;
public Service createService(ServiceCreateRequest request) {
Service service = Service.create(request);
return serviceRepository.save(service);
}
}
@Service
public class ChatService {
@Autowired
private ChatRepository chatRepository;
@Autowired
private UserRepository user
Repository;
public Chat createChat(ChatCreateRequest request, List<Integer> userIds) {
List<User> participants = userRepository.findAllById(userIds);
Chat chat = Chat.create(request, participants);
return chatRepository.save(chat);
}
}
@Service
public class ChatRoomService {
@Autowired
private ChatRoomRepository chatRoomRepository;
@Autowired
private UserRepository userRepository;
public ChatRoom createChatRoom(ChatRoomCreateRequest request, List<Integer> userIds) {
List<User> participants = userRepository.findAllById(userIds);
ChatRoom chatRoom = ChatRoom.create(request, participants);
return chatRoomRepository.save(chatRoom);
}
}
@Service
public class CategoryService {
@Autowired
private CategoryRepository categoryRepository;
public Category createCategory(CategoryCreateRequest request) {
Category category = Category.create(request);
return categoryRepository.save(category);
}
}
@RestController
@RequestMapping("/api/users")
public class UserController {
@Autowired
private UserService userService;
@PostMapping
public ResponseEntity<User> createUser(@RequestBody UserCreateRequest request) {
User createdUser = userService.createUser(request);
return ResponseEntity.status(HttpStatus.CREATED).body(createdUser);
}
@PostMapping("/{userId}/wishlist")
public ResponseEntity<Void> addToWishlist(@PathVariable int userId, @RequestBody Item item) {
userService.addToWishlist(userId, item);
return ResponseEntity.ok().build();
}
@PostMapping("/{userId}/items")
public ResponseEntity<Void> postItem(@PathVariable int userId, @RequestBody ItemCreateRequest request) {
userService.postItem(userId, request);
return ResponseEntity.ok().build();
}
}
@RestController
@RequestMapping("/api/posts")
public class PostController {
@Autowired
private PostService postService;
@PostMapping
public ResponseEntity<Post> createPost(@RequestBody PostCreateRequest request, @RequestParam int userId) {
Post createdPost = postService.createPost(request, userId);
return ResponseEntity.status(HttpStatus.CREATED).body(createdPost);
}
}
@RestController
@RequestMapping("/api/meetings")
public class MeetingController {
@Autowired
private MeetingService meetingService;
@PostMapping
public ResponseEntity<Meeting> createMeeting(@RequestBody MeetingCreateRequest request) {
Meeting createdMeeting = meetingService.createMeeting(request);
return ResponseEntity.status(HttpStatus.CREATED).body(createdMeeting);
}
}
@RestController
@RequestMapping("/api/items")
public class ItemController {
@Autowired
private ItemService itemService;
@PostMapping
public ResponseEntity<Item> createItem(@RequestBody ItemCreateRequest request, @RequestParam int userId) {
User seller = userService.findUserById(userId); // Assume this method exists
Item createdItem = itemService.createItem(request, seller);
return ResponseEntity.status(HttpStatus.CREATED).body(createdItem);
}
}
@RestController
@RequestMapping("/api/services")
public class ServiceController {
@Autowired
private ServiceService serviceService;
@PostMapping
public ResponseEntity<Service> createService(@RequestBody ServiceCreateRequest request) {
Service createdService = serviceService.createService(request);
return ResponseEntity.status(HttpStatus.CREATED).body(createdService);
}
}
@RestController
@RequestMapping("/api/chats")
public class ChatController {
@Autowired
private ChatService chatService;
@PostMapping
public ResponseEntity<Chat> createChat(@RequestBody ChatCreateRequest request, @RequestParam List<Integer> userIds) {
Chat createdChat = chatService.createChat(request, userIds);
return ResponseEntity.status(HttpStatus.CREATED).body(createdChat);
}
}
@RestController
@RequestMapping("/api/chatrooms")
public class ChatRoomController {
@Autowired
private ChatRoomService chatRoomService;
@PostMapping
public ResponseEntity<ChatRoom> createChatRoom(@RequestBody ChatRoomCreateRequest request, @RequestParam List<Integer> userIds) {
ChatRoom createdChatRoom = chatRoomService.createChatRoom(request, userIds);
return ResponseEntity.status(HttpStatus.CREATED).body(createdChatRoom);
}
}
@RestController
@RequestMapping("/api/categories")
public class CategoryController {
@Autowired
private CategoryService categoryService;
@PostMapping
public ResponseEntity<Category> createCategory(@RequestBody CategoryCreateRequest request) {
Category createdCategory = categoryService.createCategory(request);
return ResponseEntity.status(HttpStatus.CREATED).body(createdCategory);
}
}
이와 같이, 엔티티와 DTO를 분리하고, 각 엔티티의 생성 로직을 엔티티 클래스 내의 정적 메소드로 이동하여 코드를 재구성하였습니다. 이를 통해 각 기능의 역할이 명확해지고, 코드의 유지보수성과 가독성이 향상됩니다.
위에 제공해준 entity, service, repository, controller 코드를 repository 와 service 에 인터페이스를 도입한 버전으로 다시 제공해줘
물론입니다. 아래에 각 엔티티, 리포지토리 인터페이스, 서비스 인터페이스 및 구현 클래스, 컨트롤러 클래스를 포함한 전체 코드를 인터페이스를 도입한 버전으로 제공하겠습니다.
@Entity
public class User {
@Id @GeneratedValue(strategy = GenerationType.IDENTITY)
private int userID;
private String name;
private String profilePicture;
@Embedded
private Location location;
private float accountBalance;
@OneToMany
private List<Category> recentCategories;
@OneToMany
private List<Item> wishlist;
@OneToMany(mappedBy = "seller")
private List<Item> saleHistory;
@OneToMany(mappedBy = "buyer")
private List<Item> purchaseHistory;
public static User create(UserCreateRequest request) {
User user = new User();
user.setName(request.getName());
user.setProfilePicture(request.getProfilePicture());
user.setLocation(request.getLocation());
user.setAccountBalance(request.getAccountBalance());
return user;
}
public void addToWishlist(Item item) {
this.wishlist.add(item);
}
public void postItem(Item item) {
this.saleHistory.add(item);
item.setSeller(this);
}
// Getters and Setters
}
@Entity
public class Post {
@Id @GeneratedValue(strategy = GenerationType.IDENTITY)
private int postID;
private String title;
private String content;
@ManyToOne
private User author;
@ManyToOne
private Category category;
@Embedded
private Location location;
private DateTime createdAt;
private int viewCount;
private int likeCount;
private int commentCount;
public static Post create(PostCreateRequest request, User author) {
Post post = new Post();
post.setTitle(request.getTitle());
post.setContent(request.getContent());
post.setCategory(request.getCategory());
post.setLocation(request.getLocation());
post.setAuthor(author);
post.setCreatedAt(new DateTime());
return post;
}
// Getters and Setters
}
@Entity
public class Meeting {
@Id @GeneratedValue(strategy = GenerationType.IDENTITY)
private int meetingID;
private String name;
private String description;
private String image;
@ManyToMany
private List<User> participants;
@Embedded
private Location location;
public static Meeting create(MeetingCreateRequest request) {
Meeting meeting = new Meeting();
meeting.setName(request.getName());
meeting.setDescription(request.getDescription());
meeting.setImage(request.getImage());
meeting.setLocation(request.getLocation());
return meeting;
}
// Getters and Setters
}
@Entity
public class Item {
@Id @GeneratedValue(strategy = GenerationType.IDENTITY)
private int itemID;
private String name;
private String description;
private float price;
private String image;
@ManyToOne
private User seller;
@ManyToOne
private User buyer;
@Embedded
private Location location;
private DateTime postedAt;
private int likeCount;
@OneToMany
private List<ChatRoom> chatRooms;
public static Item create(ItemCreateRequest request, User seller) {
Item item = new Item();
item.setName(request.getName());
item.setDescription(request.getDescription());
item.setPrice(request.getPrice());
item.setImage(request.getImage());
item.setLocation(request.getLocation());
item.setSeller(seller);
item.setPostedAt(new DateTime());
return item;
}
// Getters and Setters
}
@Entity
public class Service {
@Id @GeneratedValue(strategy = GenerationType.IDENTITY)
private int serviceID;
private String name;
private String description;
@ManyToOne
private Category category;
private String image;
@Embedded
private Location location;
private String provider;
public static Service create(ServiceCreateRequest request) {
Service service = new Service();
service.setName(request.getName());
service.setDescription(request.getDescription());
service.setCategory(request.getCategory());
service.setImage(request.getImage());
service.setLocation(request.getLocation());
service.setProvider(request.getProvider());
return service;
}
// Getters and Setters
}
@Entity
public class Chat {
@Id @GeneratedValue(strategy = GenerationType.IDENTITY)
private int chatID;
@ManyToMany
private List<User> participants;
private String content;
private DateTime timestamp;
public static Chat create(ChatCreateRequest request, List<User> participants) {
Chat chat = new Chat();
chat.setContent(request.getContent());
chat.setTimestamp(new DateTime());
chat.setParticipants(participants);
return chat;
}
// Getters and Setters
}
@Entity
public class ChatRoom {
@Id @GeneratedValue(strategy = GenerationType.IDENTITY)
private int chatRoomID;
@ManyToMany
private List<User> participants;
@OneToOne
private Chat recentMessage;
private DateTime lastActive;
public static ChatRoom create(ChatRoomCreateRequest request, List<User> participants) {
ChatRoom chatRoom = new ChatRoom();
chatRoom.setParticipants(participants);
chatRoom.setLastActive(new DateTime());
return chatRoom;
}
// Getters and Setters
}
@Entity
public class Category {
@Id @GeneratedValue(strategy = GenerationType.IDENTITY)
private int categoryID;
private String name;
public static Category create(CategoryCreateRequest request) {
Category category = new Category();
category.setName(request.getName());
return category;
}
// Getters and Setters
}
@Embeddable
public class Location {
private int locationID;
private String name;
private float latitude;
private float longitude;
// Getters and Setters
}
public class UserCreateRequest {
private String name;
private String profilePicture;
private Location location;
private float accountBalance;
// Getters and Setters
}
public class PostCreateRequest {
private String title;
private String content;
private Category category;
private Location location;
// Getters and Setters
}
public class MeetingCreateRequest {
private String name;
private String description;
private String image;
private Location location;
// Getters and Setters
}
public class ItemCreateRequest {
private String name;
private String description;
private float price;
private String image;
private Location location;
// Getters and Setters
}
public class ServiceCreateRequest {
private String name;
private String description;
private Category category;
private String image;
private Location location;
private String provider;
// Getters and Setters
}
public class ChatCreateRequest {
private String content;
// Getters and Setters
}
public class ChatRoomCreateRequest {
// No fields necessary for this example
}
public class CategoryCreateRequest {
private String name;
// Getters and Setters
}
public interface UserRepository extends JpaRepository<User, Integer> {
}
public interface PostRepository extends JpaRepository<Post, Integer> {
}
public interface MeetingRepository extends JpaRepository<Meeting, Integer> {
}
public interface ItemRepository extends JpaRepository<Item, Integer> {
}
public interface ServiceRepository extends JpaRepository<Service, Integer> {
}
public interface ChatRepository extends JpaRepository<Chat, Integer> {
}
public interface ChatRoomRepository extends JpaRepository<ChatRoom, Integer> {
}
public interface CategoryRepository extends JpaRepository<Category, Integer> {
}
public interface UserService {
User createUser(UserCreateRequest request);
void addToWishlist(int userId, Item item);
void postItem(int userId, ItemCreateRequest itemRequest);
}
@Service
public class UserServiceImpl implements UserService {
private final UserRepository userRepository;
@Autowired
public UserServiceImpl(UserRepository userRepository) {
this.userRepository = userRepository;
}
@Override
public User createUser(UserCreateRequest request) {
User user = User.create(request);
return userRepository.save(user);
}
@Override
public void addToWishlist(int userId, Item item) {
User user = userRepository.findById(userId).orElseThrow(() -> new IllegalArgumentException("User not found"));
user.addToWishlist(item);
userRepository.save(user);
}
@Override
public void postItem(int userId, ItemCreateRequest
itemRequest) {
User user = userRepository.findById(userId).orElseThrow(() -> new IllegalArgumentException("User not found"));
Item item = Item.create(itemRequest, user);
user.postItem(item);
userRepository.save(user);
}
}
public interface PostService {
Post createPost(PostCreateRequest request, int userId);
}
@Service
public class PostServiceImpl implements PostService {
private final PostRepository postRepository;
private final UserRepository userRepository;
@Autowired
public PostServiceImpl(PostRepository postRepository, UserRepository userRepository) {
this.postRepository = postRepository;
this.userRepository = userRepository;
}
@Override
public Post createPost(PostCreateRequest request, int userId) {
User author = userRepository.findById(userId).orElseThrow(() -> new IllegalArgumentException("User not found"));
Post post = Post.create(request, author);
return postRepository.save(post);
}
}
public interface MeetingService {
Meeting createMeeting(MeetingCreateRequest request);
}
@Service
public class MeetingServiceImpl implements MeetingService {
private final MeetingRepository meetingRepository;
@Autowired
public MeetingServiceImpl(MeetingRepository meetingRepository) {
this.meetingRepository = meetingRepository;
}
@Override
public Meeting createMeeting(MeetingCreateRequest request) {
Meeting meeting = Meeting.create(request);
return meetingRepository.save(meeting);
}
}
public interface ItemService {
Item createItem(ItemCreateRequest request, User seller);
}
@Service
public class ItemServiceImpl implements ItemService {
private final ItemRepository itemRepository;
@Autowired
public ItemServiceImpl(ItemRepository itemRepository) {
this.itemRepository = itemRepository;
}
@Override
public Item createItem(ItemCreateRequest request, User seller) {
Item item = Item.create(request, seller);
return itemRepository.save(item);
}
}
public interface ServiceService {
Service createService(ServiceCreateRequest request);
}
@Service
public class ServiceServiceImpl implements ServiceService {
private final ServiceRepository serviceRepository;
@Autowired
public ServiceServiceImpl(ServiceRepository serviceRepository) {
this.serviceRepository = serviceRepository;
}
@Override
public Service createService(ServiceCreateRequest request) {
Service service = Service.create(request);
return serviceRepository.save(service);
}
}
public interface ChatService {
Chat createChat(ChatCreateRequest request, List<Integer> userIds);
}
@Service
public class ChatServiceImpl implements ChatService {
private final ChatRepository chatRepository;
private final UserRepository userRepository;
@Autowired
public ChatServiceImpl(ChatRepository chatRepository, UserRepository userRepository) {
this.chatRepository = chatRepository;
this.userRepository = userRepository;
}
@Override
public Chat createChat(ChatCreateRequest request, List<Integer> userIds) {
List<User> participants = userRepository.findAllById(userIds);
Chat chat = Chat.create(request, participants);
return chatRepository.save(chat);
}
}
public interface ChatRoomService {
ChatRoom createChatRoom(ChatRoomCreateRequest request, List<Integer> userIds);
}
@Service
public class ChatRoomServiceImpl implements ChatRoomService {
private final ChatRoomRepository chatRoomRepository;
private final UserRepository userRepository;
@Autowired
public ChatRoomServiceImpl(ChatRoomRepository chatRoomRepository, UserRepository userRepository) {
this.chatRoomRepository = chatRoomRepository;
this.userRepository = userRepository;
}
@Override
public ChatRoom createChatRoom(ChatRoomCreateRequest request, List<Integer> userIds) {
List<User> participants = userRepository.findAllById(userIds);
ChatRoom chatRoom = ChatRoom.create(request, participants);
return chatRoomRepository.save(chatRoom);
}
}
public interface CategoryService {
Category createCategory(CategoryCreateRequest request);
}
@Service
public class CategoryServiceImpl implements CategoryService {
private final CategoryRepository categoryRepository;
@Autowired
public CategoryServiceImpl(CategoryRepository categoryRepository) {
this.categoryRepository = categoryRepository;
}
@Override
public Category createCategory(CategoryCreateRequest request) {
Category category = Category.create(request);
return categoryRepository.save(category);
}
}
@RestController
@RequestMapping("/api/users")
public class UserController {
private final UserService userService;
@Autowired
public UserController(UserService userService) {
this.userService = userService;
}
@PostMapping
public ResponseEntity<User> createUser(@RequestBody UserCreateRequest request) {
User createdUser = userService.createUser(request);
return ResponseEntity.status(HttpStatus.CREATED).body(createdUser);
}
@PostMapping("/{userId}/wishlist")
public ResponseEntity<Void> addToWishlist(@PathVariable int userId, @RequestBody Item item) {
userService.addToWishlist(userId, item);
return ResponseEntity.ok().build();
}
@PostMapping("/{userId}/items")
public ResponseEntity<Void> postItem(@PathVariable int userId, @RequestBody ItemCreateRequest request) {
userService.postItem(userId, request);
return ResponseEntity.ok().build();
}
}
@RestController
@RequestMapping("/api/posts")
public class PostController {
private final PostService postService;
@Autowired
public PostController(PostService postService) {
this.postService = postService;
}
@PostMapping
public ResponseEntity<Post> createPost(@RequestBody PostCreateRequest request, @RequestParam int userId) {
Post createdPost = postService.createPost(request, userId);
return ResponseEntity.status(HttpStatus.CREATED).body(createdPost);
}
}
@RestController
@RequestMapping("/api/meetings")
public class MeetingController {
private final MeetingService meetingService;
@Autowired
public MeetingController(MeetingService meetingService) {
this.meetingService = meetingService;
}
@PostMapping
public ResponseEntity<Meeting> createMeeting(@RequestBody MeetingCreateRequest request) {
Meeting createdMeeting = meetingService.createMeeting(request);
return ResponseEntity.status(HttpStatus.CREATED).body(createdMeeting);
}
}
@RestController
@RequestMapping("/api/items")
public class ItemController {
private final ItemService itemService;
private final UserService userService;
@Autowired
public ItemController(ItemService itemService, UserService userService) {
this.itemService = itemService;
this.userService = userService;
}
@PostMapping
public ResponseEntity<Item> createItem(@RequestBody ItemCreateRequest request, @RequestParam int userId) {
User seller = userService.findUserById(userId); // Assume this method exists
Item createdItem = itemService.createItem(request, seller);
return ResponseEntity.status(HttpStatus.CREATED).body(createdItem);
}
}
@RestController
@RequestMapping("/api/services")
public class ServiceController {
private final ServiceService serviceService;
@Autowired
public ServiceController(ServiceService serviceService) {
this.serviceService = serviceService;
}
@PostMapping
public ResponseEntity<Service> createService(@RequestBody ServiceCreateRequest request) {
Service createdService = serviceService.createService(request);
return ResponseEntity.status(HttpStatus.CREATED).body(createdService);
}
}
@RestController
@RequestMapping("/api/chats")
public class ChatController {
private final ChatService chatService;
@Autowired
public ChatController(ChatService chatService) {
this.chatService = chatService;
}
@PostMapping
public ResponseEntity<Chat> createChat(@RequestBody ChatCreateRequest request, @RequestParam List<Integer> userIds) {
Chat createdChat = chatService.createChat(request, userIds);
return ResponseEntity.status(HttpStatus.CREATED).body(createdChat);
}
}
@RestController
@RequestMapping("/api/chatrooms")
public class ChatRoomController {
private final ChatRoomService chatRoomService;
@Autowired
public ChatRoomController(ChatRoomService chatRoomService) {
this.chatRoomService = chatRoomService;
}
@PostMapping
public ResponseEntity<ChatRoom> createChatRoom(@RequestBody ChatRoomCreateRequest request, @RequestParam List<Integer> userIds) {
ChatRoom createdChatRoom = chatRoomService.createChatRoom(request, userIds);
return ResponseEntity.status(HttpStatus.CREATED).body(createdChatRoom);
}
}
@RestController
@RequestMapping("/api/categories")
public class CategoryController {
private final CategoryService categoryService;
@
Autowired
public CategoryController(CategoryService categoryService) {
this.categoryService = categoryService;
}
@PostMapping
public ResponseEntity<Category> createCategory(@RequestBody CategoryCreateRequest request) {
Category createdCategory = categoryService.createCategory(request);
return ResponseEntity.status(HttpStatus.CREATED).body(createdCategory);
}
}
이와 같이 서비스 인터페이스를 도입하여 리포지토리와 서비스의 의존성을 인터페이스로 분리했습니다. 이를 통해 서비스의 구현을 쉽게 교체할 수 있으며, 유닛 테스트 시 모킹을 통해 서비스의 동작을 검증할 수 있습니다.
각 컴포넌트가 종류별로 각 엔티티 디렉토리 안에 생성됐으면 좋겠어.
예를 들어서,
- user 디렉토리 안에 controller, service, infra, domain 디렉토리가 있고
- repository 는 infra 디렉토리 안에, dto 들은 domain 디렉토리 안에 들어가는 식이야. 당연히 controller, service 는 각각 동명의 디렉토리 안에 위치하고.
위에 제시한 클래스 java 파일이 어떤 경로에 위치하면 되는지 리스트해줘
src/main/java/com/yourcompany/yourproject
├── user
│ ├── controller
│ │ └── UserController.java
│ ├── service
│ │ ├── UserService.java
│ │ └── UserServiceImpl.java
│ ├── infra
│ │ └── UserRepository.java
│ └── domain
│ ├── User.java
│ └── UserCreateRequest.java
├── post
│ ├── controller
│ │ └── PostController.java
│ ├── service
│ │ ├── PostService.java
│ │ └── PostServiceImpl.java
│ ├── infra
│ │ └── PostRepository.java
│ └── domain
│ ├── Post.java
│ └── PostCreateRequest.java
├── meeting
│ ├── controller
│ │ └── MeetingController.java
│ ├── service
│ │ ├── MeetingService.java
│ │ └── MeetingServiceImpl.java
│ ├── infra
│ │ └── MeetingRepository.java
│ └── domain
│ ├── Meeting.java
│ └── MeetingCreateRequest.java
├── item
│ ├── controller
│ │ └── ItemController.java
│ ├── service
│ │ ├── ItemService.java
│ │ └── ItemServiceImpl.java
│ ├── infra
│ │ └── ItemRepository.java
│ └── domain
│ ├── Item.java
│ └── ItemCreateRequest.java
├── service
│ ├── controller
│ │ └── ServiceController.java
│ ├── service
│ │ ├── ServiceService.java
│ │ └── ServiceServiceImpl.java
│ ├── infra
│ │ └── ServiceRepository.java
│ └── domain
│ ├── Service.java
│ └── ServiceCreateRequest.java
├── chat
│ ├── controller
│ │ └── ChatController.java
│ ├── service
│ │ ├── ChatService.java
│ │ └── ChatServiceImpl.java
│ ├── infra
│ │ └── ChatRepository.java
│ └── domain
│ ├── Chat.java
│ └── ChatCreateRequest.java
├── chatroom
│ ├── controller
│ │ └── ChatRoomController.java
│ ├── service
│ │ ├── ChatRoomService.java
│ │ └── ChatRoomServiceImpl.java
│ ├── infra
│ │ └── ChatRoomRepository.java
│ └── domain
│ ├── ChatRoom.java
│ └── ChatRoomCreateRequest.java
├── category
│ ├── controller
│ │ └── CategoryController.java
│ ├── service
│ │ ├── CategoryService.java
│ │ └── CategoryServiceImpl.java
│ ├── infra
│ │ └── CategoryRepository.java
│ └── domain
│ ├── Category.java
│ └── CategoryCreateRequest.java
└── common
└── domain
└── Location.java
이제 front-end 애플리케이션을 개발해보자.
프로젝트의 기본적인 구성은 아래와 같아.
- next.js 프레임워크에서 typescript 를 사용해줘
- next.js 는 최신의 app router 구조를 사용할거야
- tailwind css 를 적용해줘
애플리케이션은 모바일에서 렌더링을 가정하고 세로방향의 모습을 하고 있어. 하단에는 5개 버튼이 노출되는 네비게이터가 있어. 5개의 버튼은 각각 "홈", "동네생활", "내 근처", "채팅", "나의 당근" 이라는 이름을 노출하고 있고, 각 버튼을 누르면 네비게이터 위로 해당 화면이 보여지게 돼. 각 버튼을 클릭했을 때 보여지는 5가지 화면을 아래 묘사할게. next.js 에서 5가지 페이지를 렌더링 할 수 있도록 컴포너트를 작성해줘.
홈 중고거래 무품이 리스트되는 화면이야. 좌측 최상단에는 현재 지역이 보여지고 오른쪽 상단에는 물품을 검색할 수 있는 버튼이 있어. 그 아래로는 물품이 리스트되는데 리스트를 구성하는 컴포넌트는 좌측에 썸네일 이미지를 보여주고, 그 옆으로 제목, 지역, 글 쓴 시간, 가격, 좋아요 수를 보여주고 있어. 네비게이터 위 하단 우측에는 글쓰기 버튼이 떠 있어.
동네생활 지역에서 사람들이 커뮤니티를 형성할 수 있도록 도와주는 화면이야. 이 화면에서 사람들은 새로운 친구나 모임을 찾을 수 있어. 홈화면과 마찬가지로 상단 좌측에는 현재 지역, 오른쪽 상단에는 검색 버튼이 있어. 그 아래로는 횡스크롤 가능한 모임리스트가 있고, 그 아래로는 수직 방향으로 스크롤 가능한 피드가 있어. 이 피드에는 사람들이 친구를 찾는 글을 올릴 수 있어. 리스트의 각 컴포넌트는 좌측 상단의 카테고리, 이어서 제목과 요약된 본문, 지역, 글쓴 시간, 조회수, 좋아요, 댓글수가 표시 돼. 홈화면과 마찬가지로 네비게이터 위 오른쪽 하단에는 글쓰기 버튼이 있어.
Next.js와 TypeScript, Tailwind CSS를 사용하여 모바일 렌더링을 가정한 세로방향의 애플리케이션을 구축해보겠습니다. 이 애플리케이션은 하단에 5개의 네비게이션 버튼을 갖고 있으며, 각 버튼을 누르면 해당 화면이 표시됩니다.
npx create-next-app@latest my-app --typescript --tailwind
cd my-app
Tailwind CSS는 create-next-app
으로 생성한 프로젝트에서 자동으로 설정됩니다. 만약 그렇지 않다면, 아래와 같이 설정할 수 있습니다.
npm install -D tailwindcss postcss autoprefixer
npx tailwindcss init -p
tailwind.config.js
파일을 아래와 같이 수정합니다.
module.exports = {
content: [
"./app/**/*.{js,ts,jsx,tsx}",
"./pages/**/*.{js,ts,jsx,tsx}",
"./components/**/*.{js,ts,jsx,tsx}",
],
theme: {
extend: {},
},
plugins: [],
}
styles/globals.css
파일을 아래와 같이 수정합니다.
@tailwind base;
@tailwind components;
@tailwind utilities;
프로젝트 구조는 다음과 같이 설정합니다.
my-app/
├── app/
│ ├── home/
│ │ ├── page.tsx
│ │ └── HomeComponent.tsx
│ ├── life/
│ │ ├── page.tsx
│ │ └── LifeComponent.tsx
│ ├── nearby/
│ │ ├── page.tsx
│ │ └── NearbyComponent.tsx
│ ├── chat/
│ │ ├── page.tsx
│ │ └── ChatComponent.tsx
│ ├── my/
│ │ ├── page.tsx
│ │ └── MyComponent.tsx
│ ├── layout.tsx
│ └── globals.css
├── components/
│ └── BottomNavigator.tsx
├── tailwind.config.js
├── postcss.config.js
└── tsconfig.json
``
### 프로젝트 설정 및 파일 생성
먼저, 프로젝트 구조에 따라 필요한 파일들을 생성하고 내용을 작성하겠습니다.
#### 1. `app/layout.tsx`
`layout.tsx` 파일은 모든 페이지에 공통으로 적용되는 레이아웃을 정의합니다.
```tsx
import React from 'react';
import '../globals.css';
import BottomNavigator from '../components/BottomNavigator';
export const metadata = {
title: 'My App',
description: 'A Next.js app with TypeScript and Tailwind CSS',
};
export default function RootLayout({ children }: { children: React.ReactNode }) {
return (
<html lang="en">
<body className="flex flex-col min-h-screen">
<main className="flex-grow">{children}</main>
<BottomNavigator />
</body>
</html>
);
}
components/BottomNavigator.tsx
하단 네비게이터 컴포넌트를 정의합니다.
import Link from 'next/link';
import { usePathname } from 'next/navigation';
const BottomNavigator = () => {
const pathname = usePathname();
const navItems = [
{ name: '홈', href: '/home' },
{ name: '동네생활', href: '/life' },
{ name: '내 근처', href: '/nearby' },
{ name: '채팅', href: '/chat' },
{ name: '나의 당근', href: '/my' },
];
return (
<nav className="fixed bottom-0 left-0 right-0 bg-white border-t border-gray-200">
<div className="flex justify-around">
{navItems.map((item) => (
<Link key={item.name} href={item.href}>
<a className={`flex-1 py-2
```tsx
text-center ${pathname === item.href ? 'text-orange-500' : 'text-gray-500'}`}>
{item.name}
</a>
</Link>
))}
</div>
</nav>
);
};
export default BottomNavigator;
각 네비게이터 버튼이 렌더링하는 페이지를 설정합니다.
app/home/page.tsx
import React from 'react';
import HomeComponent from './HomeComponent';
const HomePage = () => {
return <HomeComponent />;
};
export default HomePage;
app/home/HomeComponent.tsx
import React from 'react';
const HomeComponent = () => {
// Mock data for items
const items = [
{
id: 1,
thumbnail: 'https://via.placeholder.com/150',
title: 'Item 1',
location: 'Seoul',
time: '3 hours ago',
price: '₩10,000',
likes: 5,
},
{
id: 2,
thumbnail: 'https://via.placeholder.com/150',
title: 'Item 2',
location: 'Incheon',
time: '5 hours ago',
price: '₩20,000',
likes: 8,
},
];
return (
<div className="p-4">
<div className="flex justify-between items-center mb-4">
<div>현재 지역</div>
<button className="text-blue-500">검색</button>
</div>
<div className="space-y-4">
{items.map((item) => (
<div key={item.id} className="flex items-center border p-2 rounded-lg">
<img src={item.thumbnail} alt={item.title} className="w-16 h-16 rounded-lg mr-4" />
<div className="flex-grow">
<div className="font-bold">{item.title}</div>
<div className="text-sm text-gray-500">{item.location} · {item.time}</div>
<div className="text-orange-500 font-bold">{item.price}</div>
<div className="text-sm text-gray-500">❤️ {item.likes}</div>
</div>
</div>
))}
</div>
<button className="fixed bottom-16 right-4 bg-orange-500 text-white p-4 rounded-full shadow-lg">글쓰기</button>
</div>
);
};
export default HomeComponent;
app/life/page.tsx
import React from 'react';
import LifeComponent from './LifeComponent';
const LifePage = () => {
return <LifeComponent />;
};
export default LifePage;
app/life/LifeComponent.tsx
import React from 'react';
const LifeComponent = () => {
// Mock data for meetings and posts
const meetings = [
{ id: 1, name: 'Meeting 1' },
{ id: 2, name: 'Meeting 2' },
];
const posts = [
{
id: 1,
category: 'Friend',
title: 'Looking for a tennis partner',
summary: 'Anyone interested in playing tennis on weekends?',
location: 'Seoul',
time: '1 day ago',
views: 100,
likes: 10,
comments: 5,
},
{
id: 2,
category: 'Activity',
title: 'Yoga class in the park',
summary: 'Join us for a relaxing yoga session in the park.',
location: 'Incheon',
time: '2 days ago',
views: 150,
likes: 15,
comments: 8,
},
];
return (
<div className="p-4">
<div className="flex justify-between items-center mb-4">
<div>현재 지역</div>
<button className="text-blue-500">검색</button>
</div>
<div className="mb-4 overflow-x-scroll flex space-x-4">
{meetings.map((meeting) => (
<div key={meeting.id} className="min-w-[150px] p-4 bg-white border rounded-lg">
{meeting.name}
</div>
))}
</div>
<div className="space-y-4">
{posts.map((post) => (
<div key={post.id} className="p-4 bg-white border rounded-lg">
<div className="text-xs text-gray-500">{post.category}</div>
<div className="font-bold">{post.title}</div>
<div className="text-sm text-gray-500">{post.summary}</div>
<div className="text-xs text-gray-500">
{post.location} · {post.time} · 조회수 {post.views} · ❤️ {post.likes} · 💬 {post.comments}
</div>
</div>
))}
</div>
<button className="fixed bottom-16 right-4 bg-orange-500 text-white p-4 rounded-full shadow-lg">글쓰기</button>
</div>
);
};
export default LifeComponent;
app/nearby/page.tsx
import React from 'react';
import NearbyComponent from './NearbyComponent';
const NearbyPage = () => {
return <NearbyComponent />;
};
export default NearbyPage;
app/nearby/NearbyComponent.tsx
import React from 'react';
const NearbyComponent = () => {
return (
<div className="p-4">
<h1>내 근처</h1>
<p>내 근처의 정보를 표시합니다.</p>
</div>
);
};
export default NearbyComponent;
app/chat/page.tsx
import React from 'react';
import ChatComponent from './ChatComponent';
const ChatPage = () => {
return <ChatComponent />;
};
export default ChatPage;
app/chat/ChatComponent.tsx
import React from 'react';
const ChatComponent = () => {
return (
<div className="p-4">
<h1>채팅</h1>
<p>채팅 화면입니다.</p>
</div>
);
};
export default ChatComponent;
app/my/page.tsx
import React from 'react';
import MyComponent from './MyComponent';
const MyPage = () => {
return <MyComponent />;
};
export default MyPage;
app/my/MyComponent.tsx
import React from 'react';
const MyComponent = () => {
return (
<div className="p-4">
<h1>나의 당근</h1>
<p>나의 당근 화면입니다.</p>
</div>
);
};
export default MyComponent;
tailwind.config.js
파일을 업데이트하여 Tailwind CSS를 활성화합니다.
module.exports = {
content: [
"./app/**/*.{js,ts,jsx,tsx}",
"./pages/**/*.{js,ts,jsx,tsx}",
"./components/**/*.{js,ts,jsx,tsx}",
],
theme: {
extend: {},
},
plugins: [],
}
globals.css
파일 설정globals.css
파일에 Tailwind CSS 지시문을 추가합니다.
@tailwind base;
@tailwind components;
@tailwind utilities;
이제 모든 설정이 완료되었습니다. 이 설정으로 Next.js, TypeScript, Tailwind CSS를 사용하여 모바일에 최적화된 애플리케이션을 개발할 수 있습니다. 각 네비게이터 버튼을 클릭하면 해당 페이지가 렌더링되고, Tailwind CSS를 사용하여 스타일을 적용할 수 있습니다.
나머지 버튼 3개로 묘사할게.
내 근처 내 근처에 위치한 업체들의 광고를 보여주는 화면이야. 다른 화면과 마찬가지로 하단에는 네비게이터, 왼쪽 상단에는 현재 지역, 우측 상단에는 검색 버튼이 보여져. 그 아래로 카테고리가 보여지는데 4행 3열로 이모지 아이콘 아래 카테고리명이 노출돼. 12개 카테고리는 "에어컨청소","운동","취미,클래스", "미용실", "뷰티샵", "이사,용달","청소","인테리어시공","수리,설치","동네쿠폰","음식점","더보기" 야. 그 아래 세로 스크롤 가능한 광고 피드가 보여지게 돼. 피드를 구성하는 각 컴포넌트는 왼쪽에 썸네일 이미지, 그 오른쪽에 카테고리, 제목, 업로드 시간이 보여져.
채팅 중고거래 채팅 목록이 보여지는 화면이야. 세로 스크롤 가능한 채팅 목록이 보여지고, 각 채팅 컴포넌트는 왼쪽에는 대화하는 사용자 2명의 썸네일이 동그란 모양으로 겹쳐 표시되고, 그 오른쪽에는 상대방의 닉네임, 지역, 마지막 채팅을 발송한 시간, 마지막 채팅 내용이 표시 돼
나의 당근 나의 프로필을 확인하고 관심 목록이나 판매내역을 확인할 수 있는 화면이야. 상단에는 이미지 썸네일과 닉네임, 프로필보기 버튼이 위치하고 그 아래 거래에 사용할 수 있는 포인트의 잔액이 보여지고 충전 버튼이 있어. 그 아래는 그 밖에 다른 기능을 나타내는 5개 메뉴가 세로로 배열 돼있어. 메뉴 이름은 관심목록, 판매내역, 구매내역, 모아보기, 중고거래 가계부 야.
app/nearby/NearbyComponent.tsx
import React from 'react';
const NearbyComponent = () => {
const categories = [
{ name: '에어컨청소', emoji: '❄️' },
{ name: '운동', emoji: '🏋️' },
{ name: '취미,클래스', emoji: '🎨' },
{ name: '미용실', emoji: '💇' },
{ name: '뷰티샵', emoji: '💅' },
{ name: '이사,용달', emoji: '🚛' },
{ name: '청소', emoji: '🧹' },
{ name: '인테리어시공', emoji: '🏠' },
{ name: '수리,설치', emoji: '🔧' },
{ name: '동네쿠폰', emoji: '🎟️' },
{ name: '음식점', emoji: '🍴' },
{ name: '더보기', emoji: '➕' },
];
const ads = [
{
id: 1,
thumbnail: 'https://via.placeholder.com/150',
category: '음식점',
title: 'Best Pizza in Town',
time: '2 hours ago',
},
{
id: 2,
thumbnail: 'https://via.placeholder.com/150',
category: '미용실',
title: 'Amazing Hair Salon',
time: '5 hours ago',
},
];
return (
<div className="p-4">
<div className="flex justify-between items-center mb-4">
<div>현재 지역</div>
<button className="text-blue-500">검색</button>
</div>
<div className="grid grid-cols-3 gap-4 mb-4">
{categories.map((category, index) => (
<div key={index} className="flex flex-col items-center">
<div className="text-2xl">{category.emoji}</div>
<div className="text-sm">{category.name}</div>
</div>
))}
</div>
<div className="space-y-4">
{ads.map((ad) => (
<div key={ad.id} className="flex items-center border p-2 rounded-lg">
<img src={ad.thumbnail} alt={ad.title} className="w-16 h-16 rounded-lg mr-4" />
<div className="flex-grow">
<div className="text-xs text-gray-500">{ad.category}</div>
<div className="font-bold">{ad.title}</div>
<div className="text-xs text-gray-500">{ad.time}</div>
</div>
</div>
))}
</div>
</div>
);
};
export default NearbyComponent;
app/chat/ChatComponent.tsx
import React from 'react';
const ChatComponent = () => {
const chats = [
{
id: 1,
users: [
{ name: 'User1', thumbnail: 'https://via.placeholder.com/40' },
{ name: 'User2', thumbnail: 'https://via.placeholder.com/40' },
],
nickname: 'John Doe',
location: 'Seoul',
time: '3 hours ago',
lastMessage: 'Hi, is this still available?',
},
{
id: 2,
users: [
{ name: 'User3', thumbnail: 'https://via.placeholder.com/40' },
{ name: 'User4', thumbnail: 'https://via.placeholder.com/40' },
],
nickname: 'Jane Smith',
location: 'Incheon',
time: '5 hours ago',
lastMessage: 'Can we meet tomorrow?',
},
];
return (
<div className="p-4 space-y-4">
{chats.map((chat) => (
<div key={chat.id} className="flex items-center border p-2 rounded-lg">
<div className="relative">
<img src={chat.users[0].thumbnail} alt={chat.users[0].name} className="w-10 h-10 rounded-full" />
<img src={chat.users[1].thumbnail} alt={chat.users[1].name} className="w-10 h-10 rounded-full absolute -right-3" />
</div>
<div className="ml-4 flex-grow">
<div className="font-bold">{chat.nickname}</div>
<div className="text-xs text-gray-500">{chat.location} · {chat.time}</div>
<div className="text-sm text-gray-700">{chat.lastMessage}</div>
</div>
</div>
))}
</div>
);
};
export default ChatComponent;
app/my/MyComponent.tsx
import React from 'react';
const MyComponent = () => {
const menus = [
'관심목록',
'판매내역',
'구매내역',
'모아보기',
'중고거래 가계부',
];
return (
<div className="p-4 space-y-4">
<div className="flex items-center mb-4">
<img src="https://via.placeholder.com/60" alt="Profile" className="w-16 h-16 rounded-full mr-4" />
<div>
<div className="font-bold text-lg">User Nickname</div>
<button className="text-blue-500">프로필 보기</button>
</div>
</div>
<div className="flex justify-between items-center mb-4">
<div>포인트: 10,000P</div>
<button className="text-blue-500">충전</button>
</div>
<div className="space-y-2">
{menus.map((menu, index) => (
<div key={index} className="border p-4 rounded-lg">
{menu}
</div>
))}
</div>
</div>
);
};
export default MyComponent;
이제 각 페이지가 제대로 설정되었습니다. 이 설정을 통해 Next.js 애플리케이션은 모바일에 최적화된 레이아웃을 갖추게 됩니다. Tailwind CSS를 사용하여 스타일을 쉽게 적용할 수 있습니다. 각 버튼을 클릭하면 해당 페이지가 렌더링되고, Tailwind CSS를 사용하여 각 페이지의 레이아웃과 스타일을 쉽게 조정할 수 있습니다.