Feat: 내 게시글/댓글/북마크 목록 조회 API 구현 (#243)

src/main/java/com/back/domain/board/comment/dto/MyCommentResponse.java

@@ -0,0 +1,55 @@
+package com.back.domain.board.comment.dto;
+
+import com.back.domain.board.comment.entity.Comment;
+
+import java.time.LocalDateTime;
+
+/**
+ * 내 댓글 목록 응답 DTO
+ *
+ * @param commentId     댓글 ID
+ * @param postId        게시글 ID
+ * @param postTitle     게시글 제목
+ * @param parentId      부모 댓글 ID
+ * @param parentContent 부모 댓글 내용 (50자)
+ * @param content       댓글 내용
+ * @param likeCount     좋아요 수
+ * @param createdAt     댓글 생성 일시
+ * @param updatedAt     댓글 수정 일시
+ */
+public record MyCommentResponse(
+        Long commentId,
+        Long postId,
+        String postTitle,
+        Long parentId,
+        String parentContent,
+        String content,
+        long likeCount,
+        LocalDateTime createdAt,
+        LocalDateTime updatedAt
+) {
+    public static MyCommentResponse from(Comment comment) {
+        return new MyCommentResponse(
+                comment.getId(),
+                comment.getPost().getId(),
+                comment.getPost().getTitle(),
+                comment.getParent() != null
+                        ? comment.getParent().getId()
+                        : null,
+                comment.getParent() != null
+                        ? truncate(comment.getParent().getContent())
+                        : null,
+                comment.getContent(),
+                comment.getLikeCount(),
+                comment.getCreatedAt(),
+                comment.getUpdatedAt()
+        );
+    }
+
+    private static String truncate(String content) {
+        int length = 50;
+        return (content == null || content.length() <= length)
+                ? content
+                : content.substring(0, length) + "...";
+    }
+}

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

@@ -2,9 +2,12 @@
 
 import com.back.domain.board.comment.entity.Comment;
 import com.back.domain.board.comment.repository.custom.CommentRepositoryCustom;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.Pageable;
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.stereotype.Repository;
 
 @Repository
 public interface CommentRepository extends JpaRepository<Comment, Long>, CommentRepositoryCustom {
+    Page<Comment> findAllByUserId(Long userId, Pageable pageable);
 }

src/main/java/com/back/domain/board/post/dto/PostListResponse.java

@@ -1,6 +1,7 @@
 package com.back.domain.board.post.dto;
 
 import com.back.domain.board.common.dto.AuthorResponse;
+import com.back.domain.board.post.entity.Post;
 import com.querydsl.core.annotations.QueryProjection;
 import lombok.Getter;
 import lombok.Setter;
@@ -49,4 +50,21 @@ public PostListResponse(Long postId,
         this.createdAt = createdAt;
         this.updatedAt = updatedAt;
     }
+
+    public static PostListResponse from(Post post) {
+        return new PostListResponse(
+                post.getId(),
+                AuthorResponse.from(post.getUser()),
+                post.getTitle(),
+                post.getThumbnailUrl(),
+                post.getCategories().stream()
+                        .map(CategoryResponse::from)
+                        .toList(),
+                post.getLikeCount(),
+                post.getBookmarkCount(),
+                post.getCommentCount(),
+                post.getCreatedAt(),
+                post.getUpdatedAt()
+        );
+    }
 }

src/main/java/com/back/domain/board/post/entity/Post.java

@@ -93,6 +93,7 @@ public void update(String title, String content) {
         this.content = content;
     }
 
+    // TODO: 진짜로 바뀐 카테고리만 추가/삭제하도록 개선
     /** 카테고리 일괄 업데이트 */
     public void updateCategories(List<PostCategory> categories) {
         this.postCategoryMappings.clear();

src/main/java/com/back/domain/board/post/repository/PostBookmarkRepository.java

@@ -1,6 +1,8 @@
 package com.back.domain.board.post.repository;
 
 import com.back.domain.board.post.entity.PostBookmark;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.Pageable;
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.stereotype.Repository;
 
@@ -10,4 +12,5 @@
 public interface PostBookmarkRepository extends JpaRepository<PostBookmark, Long> {
     boolean existsByUserIdAndPostId(Long userId, Long postId);
     Optional<PostBookmark> findByUserIdAndPostId(Long userId, Long postId);
+    Page<PostBookmark> findAllByUserId(Long userId, Pageable pageable);
 }

src/main/java/com/back/domain/board/post/repository/PostRepository.java

@@ -2,9 +2,12 @@
 
 import com.back.domain.board.post.entity.Post;
 import com.back.domain.board.post.repository.custom.PostRepositoryCustom;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.Pageable;
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.stereotype.Repository;
 
 @Repository
 public interface PostRepository extends JpaRepository<Post, Long>, PostRepositoryCustom {
+    Page<Post> findAllByUserId(Long userId, Pageable pageable);
 }

src/main/java/com/back/domain/user/controller/UserController.java

@@ -1,5 +1,8 @@
 package com.back.domain.user.controller;
 
+import com.back.domain.board.comment.dto.MyCommentResponse;
+import com.back.domain.board.common.dto.PageResponse;
+import com.back.domain.board.post.dto.PostListResponse;
 import com.back.domain.user.dto.ChangePasswordRequest;
 import com.back.domain.user.dto.UpdateUserProfileRequest;
 import com.back.domain.user.dto.UserDetailResponse;
@@ -8,6 +11,9 @@
 import com.back.global.security.user.CustomUserDetails;
 import jakarta.validation.Valid;
 import lombok.RequiredArgsConstructor;
+import org.springframework.data.domain.Pageable;
+import org.springframework.data.domain.Sort;
+import org.springframework.data.web.PageableDefault;
 import org.springframework.http.ResponseEntity;
 import org.springframework.security.core.annotation.AuthenticationPrincipal;
 import org.springframework.web.bind.annotation.*;
@@ -20,7 +26,7 @@ public class UserController implements UserControllerDocs {
 
     // 내 정보 조회
     @GetMapping("/me")
-    public ResponseEntity<RsData<UserDetailResponse>> getMyInfo (
+    public ResponseEntity<RsData<UserDetailResponse>> getMyInfo(
             @AuthenticationPrincipal CustomUserDetails user
     ) {
         UserDetailResponse userDetail = userService.getUserInfo(user.getUserId());
@@ -69,4 +75,46 @@ public ResponseEntity<RsData<Void>> deleteMyAccount(
                         "회원 탈퇴가 완료되었습니다."
                 ));
     }
+
+    // 내 게시글 목록 조회
+    @GetMapping("/me/posts")
+    public ResponseEntity<RsData<PageResponse<PostListResponse>>> getMyPosts(
+            @AuthenticationPrincipal CustomUserDetails user,
+            @PageableDefault(sort = "createdAt", direction = Sort.Direction.DESC) Pageable pageable
+    ) {
+        PageResponse<PostListResponse> response = userService.getMyPosts(user.getUserId(), pageable);
+        return ResponseEntity
+                .ok(RsData.success(
+                        "내 게시글 목록이 조회되었습니다.",
+                        response
+                ));
+    }
+
+    // 내 댓글 목록 조회
+    @GetMapping("/me/comments")
+    public ResponseEntity<RsData<PageResponse<MyCommentResponse>>> getMyComments(
+            @AuthenticationPrincipal CustomUserDetails user,
+            @PageableDefault(sort = "createdAt", direction = Sort.Direction.DESC) Pageable pageable
+    ) {
+        PageResponse<MyCommentResponse> response = userService.getMyComments(user.getUserId(), pageable);
+        return ResponseEntity
+                .ok(RsData.success(
+                        "내 댓글 목록이 조회되었습니다.",
+                        response
+                ));
+    }
+
+    // 내 북마크 게시글 목록 조회
+    @GetMapping("/me/bookmarks")
+    public ResponseEntity<RsData<PageResponse<PostListResponse>>> getMyBookmarks(
+            @AuthenticationPrincipal CustomUserDetails user,
+            @PageableDefault(sort = "createdAt", direction = Sort.Direction.DESC) Pageable pageable
+    ) {
+        PageResponse<PostListResponse> response = userService.getMyBookmarks(user.getUserId(), pageable);
+        return ResponseEntity
+                .ok(RsData.success(
+                        "내 북마크 게시글 목록이 조회되었습니다.",
+                        response
+                ));
+    }
 }