[BE] [FEAT] 뉴스 CRUD API 생성

backend/backup.sql

@@ -28,6 +28,7 @@ DROP TABLE IF EXISTS `admin_SEQ`;
 DROP TABLE IF EXISTS `admin`;
 DROP TABLE IF EXISTS `UserEntity`;
 DROP TABLE IF EXISTS `professor_SEQ`;
+DROP TABLE IF EXISTS `news`;
 
 -- Admin table
 CREATE TABLE `admin` (
@@ -119,4 +120,16 @@ CREATE TABLE `reservation` (
                                CONSTRAINT `FK_reservation_seminar_room` FOREIGN KEY (`seminar_room_id`) REFERENCES `seminar_room` (`seminar_room_id`)
 ) ENGINE = InnoDB DEFAULT CHARSET = utf8mb4 COLLATE = utf8mb4_0900_ai_ci;
 
--- Continue for other tables like `thesis`, `board`, and `users`
+-- Continue for other tables like `thesis`, `board`, and `users`
+
+-- News 테이블 생성
+CREATE TABLE `news` (
+                        `news_id` BIGINT NOT NULL AUTO_INCREMENT,
+                        `name` VARCHAR(255),
+                        `content` TEXT,
+                        `view` INT DEFAULT 0,
+                        `link` VARCHAR(255),
+                        `image` VARCHAR(1000),
+                        `created_at` DATETIME DEFAULT CURRENT_TIMESTAMP,
+                        PRIMARY KEY (`news_id`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci;

backend/src/main/java/org/example/backend/news/controller/NewsController.java

@@ -0,0 +1,73 @@
+package org.example.backend.news.controller;
+
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.tags.Tag;
+import jakarta.validation.Valid;
+import java.util.List;
+import lombok.RequiredArgsConstructor;
+import org.example.backend.common.dto.PageRequestDto;
+import org.example.backend.common.dto.ResponseDto;
+import org.example.backend.news.domain.dto.NewsReqDto;
+import org.example.backend.news.domain.dto.NewsResDto;
+import org.example.backend.news.service.NewsService;
+import org.springframework.data.domain.Page;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.DeleteMapping;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.ModelAttribute;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestPart;
+import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.multipart.MultipartFile;
+
+@RestController
+@RequiredArgsConstructor
+@Tag(name = "뉴스", description = "뉴스 API")
+@RequestMapping("/api/news")
+public class NewsController {
+    private final NewsService newsService;
+
+    @Operation(summary = "뉴스 생성 API", description = "뉴스 생성")
+    @PostMapping(consumes = "multipart/form-data")
+    public ResponseEntity<Long> createNews(
+            @RequestPart(value = "newsReqDto") @Valid NewsReqDto newsReqDto,
+            @RequestPart(value = "newsImage", required = false) MultipartFile multipartFile
+    ) {
+        Long newsId = newsService.saveNews(newsReqDto, multipartFile);
+        return new ResponseEntity<>(newsId, HttpStatus.OK);
+    }
+
+    @Operation(summary = "모든 뉴스 조회 API", description = "모든 뉴스의 리스트 반환")
+    @GetMapping
+    public ResponseDto<List<NewsResDto>> getAllBoards(@Valid @ModelAttribute PageRequestDto pageRequest) {
+
+        Page<NewsResDto> newsList = newsService.getAllNewss(pageRequest.toPageable());
+        return ResponseDto.ok(newsList.getNumber(), newsList.getTotalPages(), newsList.getContent());
+    }
+
+    @Operation(summary = "단일 뉴스 조회 API", description = "단일 뉴스의 리스트 반환")
+    @GetMapping("/{newsId}")
+    public ResponseEntity<NewsResDto> getNews(@PathVariable(name = "newsId") Long newsId) {
+        NewsResDto newsResDto = newsService.getNews(newsId);
+        return new ResponseEntity<>(newsResDto, HttpStatus.OK);
+    }
+
+    @Operation(summary = "뉴스 정보 업데이트 API", description = "뉴스 정보 업데이트")
+    @PostMapping("/{newsId}")
+    public ResponseEntity<NewsResDto> updateNews(@PathVariable(name = "newsId") Long newsId,
+                                                 @RequestPart(value = "newsReqDto") NewsReqDto newsReqDto,
+                                                 @RequestPart(value = "newsImage", required = false) MultipartFile multipartFile) {
+        NewsResDto newsResDto = newsService.updateNews(newsId, newsReqDto, multipartFile);
+        return new ResponseEntity<>(newsResDto, HttpStatus.OK);
+    }
+
+    @Operation(summary = "뉴스 삭제 API", description = "뉴스 삭제")
+    @DeleteMapping("/{newsId}")
+    public ResponseEntity<?> deleteNews(@PathVariable(name = "newsId") Long newsId) {
+        newsService.deleteNews(newsId);
+        return new ResponseEntity<>(HttpStatus.OK);
+    }
+}

backend/src/main/java/org/example/backend/news/domain/dto/NewsReqDto.java

@@ -0,0 +1,50 @@
+package org.example.backend.news.domain.dto;
+
+import jakarta.validation.constraints.NotBlank;
+import jakarta.validation.constraints.Size;
+import lombok.AccessLevel;
+import lombok.Builder;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+@Getter
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+public class NewsReqDto {
+
+    @NotBlank(message = "제목은 필수 입력값입니다.")
+    @Size(max = 200, message = "제목은 최대 200자 입력 가능합니다.")
+    private String title;
+
+    @NotBlank(message = "내용은 필수 입력값입니다.")
+    @Size(max = 5000, message = "내용은 최대 5000자까지 입력 가능합니다.")
+    private String content;
+
+    private String createDate;
+    private String link;
+    private String image;
+
+    @Builder
+    private NewsReqDto(String title, String content, String createDate,
+                       String link, String image) {
+        this.title = title;
+        this.content = content;
+        this.createDate = createDate;
+        this.link = link;
+        this.image = image;
+    }
+
+    public static NewsReqDto of(String title, String content, String createDate,
+                                String link, String image) {
+        return NewsReqDto.builder()
+                .title(title)
+                .content(content)
+                .createDate(createDate)
+                .link(link)
+                .image(image)
+                .build();
+    }
+
+    public void setImage(String image) {
+        this.image = image;
+    }
+}

backend/src/main/java/org/example/backend/news/domain/dto/NewsResDto.java

@@ -0,0 +1,44 @@
+package org.example.backend.news.domain.dto;
+
+import java.time.format.DateTimeFormatter;
+import lombok.AccessLevel;
+import lombok.Builder;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import org.example.backend.news.domain.entity.News;
+
+@Getter
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+public class NewsResDto {
+    private Long id;
+    private String title;
+    private String content;
+    private int view;
+    private String createDate;
+    private String link;
+    private String image;
+
+    @Builder
+    private NewsResDto(Long id, String title, int view, String content, String createDate,
+                       String link, String image) {
+        this.id = id;
+        this.title = title;
+        this.content = content;
+        this.view = view;
+        this.createDate = createDate;
+        this.link = link;
+        this.image = image;
+    }
+
+    public static NewsResDto of(News news) {
+        return NewsResDto.builder()
+                .id(news.getId())
+                .title(news.getTitle())
+                .content(news.getContent())
+                .view(news.getView())
+                .createDate(news.getCreatedAt().format(DateTimeFormatter.ofPattern("yyyy-MM-dd")))
+                .link(news.getLink())
+                .image(news.getImage())
+                .build();
+    }
+}

backend/src/main/java/org/example/backend/news/domain/entity/News.java

@@ -0,0 +1,67 @@
+package org.example.backend.news.domain.entity;
+
+import jakarta.persistence.Column;
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+import lombok.AccessLevel;
+import lombok.Builder;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import org.example.backend.common.domain.BaseEntity;
+import org.example.backend.news.domain.dto.NewsReqDto;
+
+@Entity
+@Getter
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+public class News extends BaseEntity {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    @Column(name = "news_id", nullable = false)
+    private Long id;
+
+    @Column(name = "name")
+    private String title;
+
+    @Column(name = "content")
+    private String content;
+
+    @Column(name = "view")
+    private int view;
+
+    @Column(name = "link")
+    private String link;
+
+    @Column(name = "image", length = 1000)
+    private String image;
+
+
+    @Builder
+    private News(String title, String content, int view, String link,
+                 String image) {
+        this.title = title;
+        this.content = content;
+        this.view = view;
+        this.link = link;
+        this.image = image;
+    }
+
+    public static News of(NewsReqDto dto) {
+        return News.builder()
+                .title(dto.getTitle())
+                .content(dto.getContent())
+                .view(0)
+                .link(dto.getLink())
+                .image(dto.getImage())
+                .build();
+    }
+
+    public void update(NewsReqDto dto) {
+        this.title = dto.getTitle();
+        this.content = dto.getContent();
+        this.link = dto.getLink();
+        this.image = dto.getImage();
+    }
+}

backend/src/main/java/org/example/backend/news/exception/NewsException.java

@@ -0,0 +1,16 @@
+package org.example.backend.news.exception;
+
+import lombok.RequiredArgsConstructor;
+import org.example.backend.common.exception.BaseException;
+import org.example.backend.common.exception.BaseExceptionType;
+
+@RequiredArgsConstructor
+public class NewsException extends BaseException {
+
+    private final NewsExceptionType exceptionType;
+
+    @Override
+    public BaseExceptionType exceptionType() {
+        return exceptionType;
+    }
+}

backend/src/main/java/org/example/backend/news/exception/NewsExceptionType.java

@@ -0,0 +1,28 @@
+package org.example.backend.news.exception;
+
+import static org.springframework.http.HttpStatus.BAD_REQUEST;
+import static org.springframework.http.HttpStatus.NOT_FOUND;
+
+import lombok.RequiredArgsConstructor;
+import org.example.backend.common.exception.BaseExceptionType;
+import org.springframework.http.HttpStatus;
+
+@RequiredArgsConstructor
+public enum NewsExceptionType implements BaseExceptionType {
+
+    NOT_FOUND_NEWS(NOT_FOUND, "뉴스를 찾을 수 없습니다")
+    ;
+
+    private final HttpStatus httpStatus;
+    private final String errorMessage;
+
+    @Override
+    public HttpStatus httpStatus() {
+        return httpStatus;
+    }
+
+    @Override
+    public String errorMessage() {
+        return errorMessage;
+    }
+}

backend/src/main/java/org/example/backend/news/repository/NewsRepository.java

@@ -0,0 +1,7 @@
+package org.example.backend.news.repository;
+
+import org.example.backend.news.domain.entity.News;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface NewsRepository extends JpaRepository<News, Long> {
+}

backend/src/main/java/org/example/backend/news/service/NewsService.java

@@ -0,0 +1,70 @@
+package org.example.backend.news.service;
+
+import static org.example.backend.news.exception.NewsExceptionType.NOT_FOUND_NEWS;
+
+import lombok.RequiredArgsConstructor;
+import org.example.backend.global.config.aws.S3Uploader;
+import org.example.backend.news.domain.dto.NewsReqDto;
+import org.example.backend.news.domain.dto.NewsResDto;
+import org.example.backend.news.domain.entity.News;
+import org.example.backend.news.exception.NewsException;
+import org.example.backend.news.exception.NewsExceptionType;
+import org.example.backend.news.repository.NewsRepository;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.Pageable;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+import org.springframework.web.multipart.MultipartFile;
+
+@Service
+@RequiredArgsConstructor
+@Transactional(readOnly = true)
+public class NewsService {
+    private final NewsRepository newsRepository;
+    private final S3Uploader s3Uploader;
+    private static final String dirName = "news";
+
+    @Transactional
+    public Long saveNews(NewsReqDto newsReqDto, MultipartFile multipartFile) {
+
+        if (multipartFile != null && !multipartFile.isEmpty()) {
+            String uploadImageUrl = s3Uploader.upload(multipartFile, dirName);
+            newsReqDto.setImage(uploadImageUrl);
+        }
+        News news = News.of(newsReqDto);
+        News savedNews = newsRepository.save(news);
+        return savedNews.getId();
+    }
+
+    public NewsResDto getNews(Long newsId) {
+        News news = findNewsById(newsId);
+        return NewsResDto.of(news);
+    }
+
+    @Transactional
+    public NewsResDto updateNews(Long newsId, NewsReqDto newsReqDto, MultipartFile multipartFile) {
+        if (multipartFile != null && !multipartFile.isEmpty()) {
+            String uploadImageUrl = s3Uploader.upload(multipartFile, dirName);
+            newsReqDto.setImage(uploadImageUrl);
+        }
+
+        News news = findNewsById(newsId);
+        news.update(newsReqDto);
+        return NewsResDto.of(news);
+    }
+
+    public void deleteNews(Long newsId) {
+        News news = findNewsById(newsId);
+        newsRepository.delete(news);
+    }
+
+    private News findNewsById(Long newsId) {
+        return newsRepository.findById(newsId)
+                .orElseThrow(() -> new NewsException(NOT_FOUND_NEWS));
+    }
+
+    public Page<NewsResDto> getAllNewss(Pageable pageable) {
+        return newsRepository.findAll(pageable)
+                .map(NewsResDto::of);
+    }
+}