feat : 3차 세미나 실습 과제_ Post 전체조회 Service, Controller 구현 #7

week02/seminar/demo/src/main/java/com/example/demo/controller/PostController.java

@@ -4,16 +4,21 @@
 import com.example.demo.common.dto.SuccessMessage;
 import com.example.demo.common.dto.SuccessStatusResponse;
 import com.example.demo.domain.Blog;
+import com.example.demo.domain.Post;
 import com.example.demo.service.MemberService;
 import com.example.demo.service.PostService;
 import com.example.demo.service.dto.blog.BlogCreateRequest;
 import com.example.demo.service.dto.member.MemberCreateDto;
 import com.example.demo.service.dto.post.PostCreateRequest;
+import com.example.demo.service.dto.post.PostFindDto;
 import jakarta.validation.Valid;
 import java.net.URI;
+import java.util.List;
 import lombok.RequiredArgsConstructor;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.Mapping;
 import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.RequestBody;
@@ -35,12 +40,25 @@ public ResponseEntity<SuccessStatusResponse> publishPost(
       @Valid @RequestBody PostCreateRequest postCreateRequest
   ) {
 
-
     // Location은 생성된 리소스의 위치를 나타낸다. 이 코드의 경우 생성된 post의 id
     return ResponseEntity.status(HttpStatus.CREATED).header(
             "Location",
             postService.create(memberId, blogId, postCreateRequest))
       .body(SuccessStatusResponse.of(SuccessMessage.POST_CREATE_SUCCESS));
   }
 
+  @GetMapping("post/{blogId}")
+  public ResponseEntity<SuccessStatusResponse> findPostList(
+      @RequestHeader(name = "memberId") Long memberId,
+      @PathVariable(name = "blogId") Long blogId
+      ) {
+
+    List<PostFindDto> postList = postService.findAllPost(memberId, blogId);
+
+    return ResponseEntity.ok(SuccessStatusResponse.of(
+        SuccessMessage.POST_FIND_SUCCESS,
+        postList
+    ));
+
+  }
 }

week02/seminar/demo/src/main/java/com/example/demo/service/PostService.java

@@ -5,6 +5,8 @@
 import com.example.demo.domain.Post;
 import com.example.demo.repository.PostRepository;
 import com.example.demo.service.dto.post.PostCreateRequest;
+import com.example.demo.service.dto.post.PostFindDto;
+import java.util.List;
 import lombok.RequiredArgsConstructor;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
@@ -31,4 +33,16 @@ public String create(Long memberId, Long blogId, PostCreateRequest postCreateReq
     // 블로그 글 생성하고 DB에 저장 후 생성된 id 반환
     return post.getId().toString();
   }
+
+  public List<PostFindDto> findAllPost(Long memberId, Long blogId){
+    // blog 찾기
+    Blog blog = blogService.findById(blogId);
+    Long findMemberId = blog.getMember().getId();
+
+    // 요청한 사람이 블로그 소유주인지 확인
+    blogService.validateOwner(memberId, findMemberId);
+
+    return postRepository.findByBlog(blog)
+        .stream().map(PostFindDto::of).toList();
+  }
 }