Feat: #7 Photo 좋아요 구현

src/main/java/com/snowmanvillage/server/controller/PhotoController.java

@@ -1,6 +1,7 @@
 package com.snowmanvillage.server.controller;
 
 import com.fasterxml.jackson.databind.ObjectMapper;
+import com.snowmanvillage.server.dto.PhotoLikeRequestDto;
 import com.snowmanvillage.server.dto.PhotoRequestDto;
 import com.snowmanvillage.server.dto.PhotoResponseDto;
 import com.snowmanvillage.server.dto.PhotoUploadRequestDto;
@@ -16,6 +17,7 @@
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.PutMapping;
 import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestParam;
@@ -70,4 +72,15 @@ public ResponseEntity<String> deletePhoto(@PathVariable(name = "photoId") Long p
             return ResponseEntity.ok("포토 삭제 실패");
         }
     }
+
+    @PutMapping("/like")
+    public ResponseEntity<PhotoResponseDto> likePhoto(@RequestBody PhotoLikeRequestDto requestDto) {
+        return ResponseEntity.ok(photoService.likePhoto(requestDto.getPhoto_id()));
+    }
+
+    @PutMapping("/unlike")
+    public ResponseEntity<PhotoResponseDto> unlikePhoto(@RequestBody PhotoLikeRequestDto requestDto) {
+        return ResponseEntity.ok(photoService.unlikePhoto(requestDto.getPhoto_id()));
+    }
+
 }

src/main/java/com/snowmanvillage/server/dto/PhotoLikeRequestDto.java

@@ -0,0 +1,8 @@
+package com.snowmanvillage.server.dto;
+
+import lombok.Getter;
+
+@Getter
+public class PhotoLikeRequestDto {
+    private Long photo_id;
+}

src/main/java/com/snowmanvillage/server/service/PhotoService.java

@@ -63,4 +63,17 @@ public String deletePhoto(Long photoId, String password) {
         }
     }
 
+    @Transactional
+    public PhotoResponseDto likePhoto(Long photoId) {
+        Photo photo = photoRepository.findById(photoId).orElseThrow(() -> new IllegalArgumentException("해당 포토가 없습니다."));
+        photo.setLikeCount(photo.getLikeCount() + 1);
+        return PhotoResponseDto.of(photo);
+    }
+
+    @Transactional
+    public PhotoResponseDto unlikePhoto(Long photoId) {
+        Photo photo = photoRepository.findById(photoId).orElseThrow(() -> new IllegalArgumentException("해당 포토가 없습니다."));
+        photo.setLikeCount(photo.getLikeCount() - 1);
+        return PhotoResponseDto.of(photo);
+    }
 }