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[feat] 다솜소식 API 구현
* feat: 다솜소식 API 구현
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‎src/main/java/dmu/dasom/api/domain/news/controller/NewsController.java‎

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package dmu.dasom.api.domain.news.controller;
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import dmu.dasom.api.domain.news.dto.NewsRequestDto;
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import dmu.dasom.api.domain.news.dto.NewsResponseDto;
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import dmu.dasom.api.domain.news.service.NewsService;
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import io.swagger.v3.oas.annotations.tags.Tag;
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import io.swagger.v3.oas.annotations.Operation;
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import io.swagger.v3.oas.annotations.responses.ApiResponse;
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import io.swagger.v3.oas.annotations.responses.ApiResponses;
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import io.swagger.v3.oas.annotations.media.Content;
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import io.swagger.v3.oas.annotations.media.ExampleObject;
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import org.springframework.http.ResponseEntity;
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import org.springframework.web.bind.annotation.*;
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import jakarta.validation.Valid;
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import java.util.List;
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@Tag(name = "NEWS API", description = "다솜소식 API")
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@RestController
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@RequestMapping("/api/news")
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public class NewsController {
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private final NewsService newsService;
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public NewsController(NewsService newsService) {
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this.newsService = newsService;
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}
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@Operation(summary = "소식 조회", description = "리스트로 조회")
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@ApiResponse(responseCode = "200", description = "정상 응답",
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content = @Content(mediaType = "application/json"))
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@GetMapping
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public ResponseEntity<List<NewsResponseDto>> getAllNews() {
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List<NewsResponseDto> newsList = newsService.getAllNews();
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return ResponseEntity.ok(newsList);
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}
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@Operation(summary = "소식 등록", description = "새로운 소식을 등록")
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@ApiResponses(value = {
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@ApiResponse(responseCode = "201", description = "생성 완료"),
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@ApiResponse(responseCode = "400", description = "유효하지 않은 요청 데이터",
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content = @Content(mediaType = "application/json",
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examples = @ExampleObject(value = "{ \"errorCode\": \"E003\", \"errorMessage\": \"유효하지 않은 입력입니다.\" }")))
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})
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@PostMapping
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public ResponseEntity<NewsResponseDto> createNews(@Valid @RequestBody NewsRequestDto requestDto) {
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NewsResponseDto responseDto = newsService.createNews(requestDto);
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return ResponseEntity.status(201).body(responseDto);
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}
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}

‎src/main/java/dmu/dasom/api/domain/news/dto/NewsRequestDto.java‎

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package dmu.dasom.api.domain.news.dto;
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import io.swagger.v3.oas.annotations.media.Schema;
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import jakarta.validation.constraints.NotBlank;
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import jakarta.validation.constraints.Size;
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import lombok.AllArgsConstructor;
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import lombok.Getter;
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import lombok.NoArgsConstructor;
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@Getter
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@NoArgsConstructor
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@AllArgsConstructor
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@Schema(name = "NewsRequestDto", description = "뉴스 생성 요청 DTO")
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public class NewsRequestDto {
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@NotBlank
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@Size(max = 100)
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@Schema(description = "뉴스 제목", example = "새로운 뉴스 제목")
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private String title;
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@NotBlank
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@Schema(description = "뉴스 내용", example = "새로운 뉴스 내용")
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private String content;
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@Size(max = 255)
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@Schema(description = "뉴스 이미지 URL", example = "http://example.com/image.jpg", nullable = true)
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private String imageUrl;
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}

‎src/main/java/dmu/dasom/api/domain/news/dto/NewsResponseDto.java‎

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package dmu.dasom.api.domain.news.dto;
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import io.swagger.v3.oas.annotations.media.Schema;
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import lombok.Getter;
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import java.time.LocalDateTime;
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@Getter
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@Schema(name = "NewsResponseDto", description = "뉴스 응답 DTO")
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public class NewsResponseDto {
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@Schema(description = "소식 ID", example = "1")
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private Long id;
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@Schema(description = "뉴스 제목", example = "제목")
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private String title;
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@Schema(description = "뉴스 내용", example = "내용")
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private String content;
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@Schema(description = "작성일", example = "2025-02-14T12:00:00")
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private LocalDateTime createdAt;
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@Schema(description = "뉴스 이미지 URL", example = "http://example.com/image.jpg", nullable = true)
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private String imageUrl;
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public NewsResponseDto(Long id, String title, String content, LocalDateTime createdAt, String imageUrl) {
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this.id = id;
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this.title = title;
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this.content = content;
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this.createdAt = createdAt;
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this.imageUrl = imageUrl;
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}
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}

‎src/main/java/dmu/dasom/api/domain/news/entity/NewsEntity.java‎

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package dmu.dasom.api.domain.news.entity;
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import dmu.dasom.api.domain.common.BaseEntity;
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import dmu.dasom.api.domain.common.Status;
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import dmu.dasom.api.domain.news.dto.NewsResponseDto;
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import io.swagger.v3.oas.annotations.media.Schema;
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import jakarta.persistence.*;
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import jakarta.validation.constraints.NotBlank;
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import jakarta.validation.constraints.NotNull;
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import jakarta.validation.constraints.Size;
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import lombok.*;
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@Getter
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@Entity
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@NoArgsConstructor
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@AllArgsConstructor
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@Builder
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@Schema(description = "뉴스 엔티티")
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public class NewsEntity extends BaseEntity {
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@Id
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@GeneratedValue(strategy = GenerationType.IDENTITY)
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@Schema(description = "뉴스 ID", example = "1")
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private Long id;
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@NotNull
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@Schema(description = "뉴스 제목", example = "뉴스 예제 제목")
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@Column(nullable = false, length = 100)
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private String title;
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@NotNull
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@Schema(description = "뉴스 내용", example = "뉴스 예제 내용")
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@Column(columnDefinition = "TEXT", nullable = false)
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private String content;
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@Schema(description = "뉴스 이미지 URL", example = "http://example.com/image.jpg")
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@Column(length = 255)
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private String imageUrl;
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// 뉴스 상태 업데이트
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public void updateStatus(Status status) {
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super.updateStatus(status);
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}
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// NewsEntity → NewsResponseDto 변환
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public NewsResponseDto toResponseDto() {
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return new NewsResponseDto(id, title, content, getCreatedAt(), imageUrl);
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}
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//수정기능
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public void update(String title, String content, String imageUrl) {
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if (title == null || title.isBlank()) {
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throw new IllegalArgumentException("제목은 필수입니다");
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}
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if (title.length() > 100) {
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throw new IllegalArgumentException("제목은 100자까지");
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}
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if (content == null || content.isBlank()) {
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throw new IllegalArgumentException("내용은 필수입니다");
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}
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if (imageUrl != null && imageUrl.length() > 255) {
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throw new IllegalArgumentException("이미지 URL은 255자까지");
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}
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this.title = title;
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this.content = content;
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this.imageUrl = imageUrl;
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}
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}

‎src/main/java/dmu/dasom/api/domain/news/repository/NewsRepository.java‎

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package dmu.dasom.api.domain.news.repository;
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import dmu.dasom.api.domain.news.entity.NewsEntity;
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import org.springframework.data.jpa.repository.JpaRepository;
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import org.springframework.stereotype.Repository;
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@Repository
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public interface NewsRepository extends JpaRepository<NewsEntity, Long> {
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}

‎src/main/java/dmu/dasom/api/domain/news/service/NewsService.java‎

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package dmu.dasom.api.domain.news.service;
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import dmu.dasom.api.domain.news.dto.NewsRequestDto;
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import dmu.dasom.api.domain.news.dto.NewsResponseDto;
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import dmu.dasom.api.domain.news.entity.NewsEntity;
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import dmu.dasom.api.domain.news.repository.NewsRepository;
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import org.springframework.stereotype.Service;
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import org.springframework.transaction.annotation.Transactional;
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import java.util.List;
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import java.util.stream.Collectors;
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@Service
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public class NewsService {
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private final NewsRepository newsRepository;
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public NewsService(NewsRepository newsRepository) {
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this.newsRepository = newsRepository;
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}
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// 전체 조회
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public List<NewsResponseDto> getAllNews() {
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return newsRepository.findAll().stream()
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.map(NewsEntity::toResponseDto)
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.collect(Collectors.toList());
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}
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// 개별 조회
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public NewsResponseDto getNewsById(Long id) {
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return newsRepository.findById(id)
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.map(NewsEntity::toResponseDto)
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.orElseThrow(() -> new IllegalArgumentException("해당 뉴스가 존재하지 않습니다. ID: " + id));
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}
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// 생성
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public NewsResponseDto createNews(NewsRequestDto requestDto) {
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NewsEntity news = NewsEntity.builder()
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.title(requestDto.getTitle())
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.content(requestDto.getContent())
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.imageUrl(requestDto.getImageUrl())
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.build();
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NewsEntity savedNews = newsRepository.save(news);
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return savedNews.toResponseDto();
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}
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// 수정
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@Transactional
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public NewsResponseDto updateNews(Long id, NewsRequestDto requestDto) {
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NewsEntity news = newsRepository.findById(id)
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.orElseThrow(() -> new IllegalArgumentException("해당 뉴스가 존재하지 않습니다. ID: " + id));
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news.update(requestDto.getTitle(), requestDto.getContent(), requestDto.getImageUrl());
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return news.toResponseDto();
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}
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// 삭제
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@Transactional
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public void deleteNews(Long id) {
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NewsEntity news = newsRepository.findById(id)
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.orElseThrow(() -> new IllegalArgumentException("해당 뉴스가 존재하지 않습니다. ID: " + id));
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newsRepository.delete(news);
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}
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}

‎src/test/java/dmu/dasom/api/domain/news/NewsServiceTest.java‎

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package dmu.dasom.api.domain.news;
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import dmu.dasom.api.domain.news.dto.NewsRequestDto;
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import dmu.dasom.api.domain.news.dto.NewsResponseDto;
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import dmu.dasom.api.domain.news.entity.NewsEntity;
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import dmu.dasom.api.domain.news.repository.NewsRepository;
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import dmu.dasom.api.domain.news.service.NewsService;
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import org.junit.jupiter.api.DisplayName;
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import org.junit.jupiter.api.Test;
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import org.junit.jupiter.api.extension.ExtendWith;
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import org.mockito.InjectMocks;
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import org.mockito.Mock;
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import org.mockito.junit.jupiter.MockitoExtension;
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import java.util.List;
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import java.util.Optional;
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import static org.assertj.core.api.Assertions.assertThat;
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import static org.junit.jupiter.api.Assertions.assertThrows;
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import static org.mockito.Mockito.*;
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@ExtendWith(MockitoExtension.class)
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class NewsServiceTest {
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@Mock
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private NewsRepository newsRepository;
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@InjectMocks
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private NewsService newsService;
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@Test
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@DisplayName("뉴스 전체 조회 테스트")
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void getAllNews() {
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// Given
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NewsEntity news1 = NewsEntity.builder().id(1L).title("뉴스1").content("내용1").imageUrl("url1").build();
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NewsEntity news2 = NewsEntity.builder().id(2L).title("뉴스2").content("내용2").imageUrl("url2").build();
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when(newsRepository.findAll()).thenReturn(List.of(news1, news2));
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// When
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List<NewsResponseDto> newsList = newsService.getAllNews();
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// Then
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assertThat(newsList).hasSize(2);
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assertThat(newsList.get(0).getTitle()).isEqualTo("뉴스1");
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verify(newsRepository, times(1)).findAll();
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}
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@Test
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@DisplayName("뉴스 개별 조회 - 성공")
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void getNewsById_Success() {
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// Given
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Long id = 1L;
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NewsEntity news = NewsEntity.builder().id(id).title("뉴스1").content("내용1").imageUrl("url1").build();
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when(newsRepository.findById(id)).thenReturn(Optional.of(news));
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// When
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NewsResponseDto responseDto = newsService.getNewsById(id);
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// Then
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assertThat(responseDto.getId()).isEqualTo(id);
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assertThat(responseDto.getTitle()).isEqualTo("뉴스1");
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verify(newsRepository, times(1)).findById(id);
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}
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@Test
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@DisplayName("뉴스 개별 조회 - 실패 (존재하지 않는 ID)")
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void getNewsById_NotFound() {
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// Given
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Long id = 999L;
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when(newsRepository.findById(id)).thenReturn(Optional.empty());
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// When & Then
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Exception exception = assertThrows(IllegalArgumentException.class, () -> newsService.getNewsById(id));
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assertThat(exception.getMessage()).isEqualTo("해당 뉴스가 존재하지 않습니다. ID: " + id);
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verify(newsRepository, times(1)).findById(id);
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}
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@Test
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@DisplayName("뉴스 생성 테스트")
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void createNews() {
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// Given
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NewsRequestDto requestDto = new NewsRequestDto("새 뉴스", "새 내용", "새 이미지");
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NewsEntity news = NewsEntity.builder()
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.title(requestDto.getTitle())
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.content(requestDto.getContent())
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.imageUrl(requestDto.getImageUrl())
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.build();
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NewsEntity savedNews = NewsEntity.builder()
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.id(1L)
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.title(news.getTitle())
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.content(news.getContent())
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.imageUrl(news.getImageUrl())
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.build();
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when(newsRepository.save(any(NewsEntity.class))).thenReturn(savedNews);
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// When
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NewsResponseDto responseDto = newsService.createNews(requestDto);
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// Then
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assertThat(responseDto.getId()).isEqualTo(1L); // 저장된 뉴스의 ID 할당확인
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assertThat(responseDto.getTitle()).isEqualTo("새 뉴스");
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assertThat(responseDto.getContent()).isEqualTo("새 내용");
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assertThat(responseDto.getImageUrl()).isEqualTo("새 이미지");
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verify(newsRepository, times(1)).save(any(NewsEntity.class)); // save() 호출 검증
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}
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}

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