feat: comment 도메인 생성

Author: seok6555

src/main/java/com/back/domain/post/comment/controller/CommentController.java

@@ -0,0 +1,14 @@
+package com.back.domain.post.comment.controller;
+
+import io.swagger.v3.oas.annotations.tags.Tag;
+import lombok.RequiredArgsConstructor;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequestMapping("/api/posts/{postId}/comments")
+@Tag(name = "ApiCommentController", description = "API 댓글 컨트롤러")
+@RequiredArgsConstructor
+public class CommentController {
+
+}

src/main/java/com/back/domain/post/comment/entity/Comment.java

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+package com.back.domain.post.comment.entity;
+
+import com.back.domain.post.post.entity.Post;
+import com.back.domain.user.entity.User;
+import jakarta.persistence.Column;
+import jakarta.persistence.Entity;
+import jakarta.persistence.EntityListeners;
+import jakarta.persistence.FetchType;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+import jakarta.persistence.JoinColumn;
+import jakarta.persistence.ManyToOne;
+import jakarta.persistence.Table;
+import java.time.LocalDateTime;
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import org.springframework.data.annotation.CreatedDate;
+import org.springframework.data.annotation.LastModifiedDate;
+import org.springframework.data.jpa.domain.support.AuditingEntityListener;
+
+@Entity
+@Getter
+@Table(name = "comment")
+@EntityListeners(AuditingEntityListener.class)
+@NoArgsConstructor(access = lombok.AccessLevel.PROTECTED)
+@AllArgsConstructor
+@Builder
+public class Comment {
+  // 각 댓글을 구분하는 유일한 번호
+  @Id
+  @GeneratedValue(strategy = GenerationType.IDENTITY)
+  @Column(name = "id")
+  private Long id;
+
+  // 해당 댓글이 작성된 게시글의 고유 식별자
+  @ManyToOne(fetch = FetchType.LAZY)
+  @JoinColumn(name = "post_id")
+  private Post post;
+
+  // 해당 댓글을 작성한 유저의 고유 식별자
+  @ManyToOne(fetch = FetchType.LAZY)
+  @JoinColumn(name = "user_id")
+  private User user;
+
+  // 댓글 작성 날짜
+  @CreatedDate
+  private LocalDateTime createdAt;
+
+  // 댓글 수정 날짜
+  @LastModifiedDate
+  private LocalDateTime updatedAt;
+
+  // 댓글 내용
+  @Column(name = "content", nullable = false, columnDefinition = "TEXT")
+  private String content;
+}

src/main/java/com/back/domain/post/comment/repository/CommentRepository.java

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+package com.back.domain.post.comment.repository;
+
+import com.back.domain.post.comment.entity.Comment;
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.stereotype.Repository;
+
+@Repository
+public interface CommentRepository extends JpaRepository<Comment, Long> {
+
+}

src/main/java/com/back/domain/post/comment/service/CommentService.java

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+package com.back.domain.post.comment.service;
+
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+
+@Service
+@RequiredArgsConstructor
+public class CommentService {
+
+}