feat : 좋아요 기능 구현

- 레디스 캐싱

src/main/java/com/example/jolvre/GraduateMinionsApplication.java

@@ -4,12 +4,14 @@
 import java.util.TimeZone;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.cloud.openfeign.EnableFeignClients;
 import org.springframework.data.jpa.repository.config.EnableJpaAuditing;
 import org.springframework.scheduling.annotation.EnableAsync;
 
 @EnableAsync
 @EnableJpaAuditing
 @SpringBootApplication
+@EnableFeignClients
 public class GraduateMinionsApplication {
     public static void main(String[] args) {
         SpringApplication.run(GraduateMinionsApplication.class, args);

src/main/java/com/example/jolvre/common/config/RedisConfig.java

@@ -5,6 +5,8 @@
 import org.springframework.context.annotation.Configuration;
 import org.springframework.data.redis.connection.RedisConnectionFactory;
 import org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory;
+import org.springframework.data.redis.core.RedisTemplate;
+import org.springframework.data.redis.serializer.StringRedisSerializer;
 
 @Configuration
 public class RedisConfig {
@@ -17,4 +19,23 @@ public class RedisConfig {
     public RedisConnectionFactory redisConnectionFactory() {
         return new LettuceConnectionFactory(host, port);
     }
+
+    @Bean
+    public RedisTemplate redisTemplate() {
+        RedisTemplate<String, Object> redisTemplate = new RedisTemplate<>();
+        redisTemplate.setConnectionFactory(redisConnectionFactory());
+
+        // 일반적인 key:value의 경우 시리얼라이저
+        redisTemplate.setKeySerializer(new StringRedisSerializer());
+        redisTemplate.setValueSerializer(new StringRedisSerializer());
+
+        // Hash를 사용할 경우 시리얼라이저
+        redisTemplate.setHashKeySerializer(new StringRedisSerializer());
+        redisTemplate.setHashValueSerializer(new StringRedisSerializer());
+
+        // 모든 경우
+        redisTemplate.setDefaultSerializer(new StringRedisSerializer());
+
+        return redisTemplate;
+    }
 }

src/main/java/com/example/jolvre/common/util/RedisUtil.java

@@ -1,7 +1,9 @@
 package com.example.jolvre.common.util;
 
 import java.time.Duration;
+import java.util.concurrent.TimeUnit;
 import lombok.RequiredArgsConstructor;
+import org.springframework.data.redis.core.HashOperations;
 import org.springframework.data.redis.core.StringRedisTemplate;
 import org.springframework.data.redis.core.ValueOperations;
 import org.springframework.stereotype.Service;
@@ -18,9 +20,22 @@ public String getData(String key) {//지정된 키(key)에 해당하는 데이
 
     public void setData(String key, String value) {//지정된 키(key)에 값을 저장하는 메서드
         ValueOperations<String, String> valueOperations = redisTemplate.opsForValue();
+        redisTemplate.expire(key, 8, TimeUnit.HOURS);
         valueOperations.set(key, value);
     }
 
+    public Object getHashData(String key, Object hashKey) {
+        HashOperations<String, Object, Object> hashOperations = redisTemplate.opsForHash();
+        return hashOperations.get(key, hashKey);
+    }
+
+    public void setHashData(String key, String hashKey, String value) {
+        HashOperations<String, String, String> hashOperations = redisTemplate.opsForHash();
+        redisTemplate.expire(key, 6, TimeUnit.HOURS);
+        hashOperations.put(key, hashKey, value);
+
+    }
+
     public void setDataExpire(String key, String value,
                               long duration) {//지정된 키(key)에 값을 저장하고, 지정된 시간(duration) 후에 데이터가 만료되도록 설정하는 메서드
         ValueOperations<String, String> valueOperations = redisTemplate.opsForValue();

src/main/java/com/example/jolvre/exhibition/api/ExhibitLikeController.java

@@ -0,0 +1,26 @@
+package com.example.jolvre.exhibition.api;
+
+import com.example.jolvre.auth.PrincipalDetails;
+import com.example.jolvre.exhibition.service.ExhibitLikeService;
+import lombok.RequiredArgsConstructor;
+import org.springframework.http.ResponseEntity;
+import org.springframework.security.core.annotation.AuthenticationPrincipal;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequiredArgsConstructor
+@RequestMapping("/api/v1/exhibit/like")
+public class ExhibitLikeController {
+    private final ExhibitLikeService exhibitLikeService;
+
+    @PostMapping("/{exhibitId}")
+    public ResponseEntity<Void> likeUpExhibit(@AuthenticationPrincipal PrincipalDetails principalDetails,
+                                              @PathVariable Long exhibitId) {
+        exhibitLikeService.likeUpExhibit(exhibitId, principalDetails.getId());
+
+        return ResponseEntity.ok().build();
+    }
+}

src/main/java/com/example/jolvre/exhibition/entity/Exhibit.java

@@ -41,7 +41,7 @@ public class Exhibit extends BaseTimeEntity {
     private String title;
 
     @Column
-    private int up; //추천수
+    private int likes = 0; //추천수
 
     @Column(length = 1000)
     private String authorWord; //작가의 한마디
@@ -98,7 +98,6 @@ public Exhibit(User user, String title, String authorWord, String introduction,
         this.productionMethod = productionMethod;
         this.price = price;
         this.forSale = forSale;
-        this.up = 0;
         this.distribute = false;
         this.thumbnail = thumbnail;
         this.checkVirtualSpace = checkVirtualSpace;
@@ -132,8 +131,8 @@ public void addImage3D(String imageUrl) {
         this.image3d = imageUrl;
     }
 
-    public void up() {
-        this.up += 1;
+    public void likeUp() {
+        this.likes += 1;
     }
 
     public void startDistribute() {

src/main/java/com/example/jolvre/exhibition/service/ExhibitLikeService.java

@@ -0,0 +1,32 @@
+package com.example.jolvre.exhibition.service;
+
+import com.example.jolvre.common.error.exhibition.ExhibitNotFoundException;
+import com.example.jolvre.common.util.RedisUtil;
+import com.example.jolvre.exhibition.entity.Exhibit;
+import com.example.jolvre.exhibition.repository.ExhibitRepository;
+import com.example.jolvre.user.service.UserService;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+
+@Service
+@RequiredArgsConstructor
+public class ExhibitLikeService {
+    private final ExhibitRepository exhibitRepository;
+    private final UserService userService;
+    private final RedisUtil redisUtil;
+
+    //전시 좋아요 (한 전시당 8시간마다 좋아요 가능)
+    public void likeUpExhibit(Long exhibitId, Long userId) {
+        String redisKey = "LIKE_" + exhibitId + userId;
+
+        if (redisUtil.getData(redisKey) != null) {
+            return;
+        }
+
+        Exhibit exhibit = exhibitRepository.findById(exhibitId).orElseThrow(ExhibitNotFoundException::new);
+        exhibit.likeUp();
+        exhibitRepository.save(exhibit);
+
+        redisUtil.setData(redisKey, String.valueOf(exhibit.getLikes()));
+    }
+}

src/main/java/com/example/jolvre/exhibition/service/ExhibitService.java

@@ -15,7 +15,6 @@
 import com.example.jolvre.exhibition.repository.ExhibitImageRepository;
 import com.example.jolvre.exhibition.repository.ExhibitQueryDslRepository;
 import com.example.jolvre.exhibition.repository.ExhibitRepository;
-import com.example.jolvre.external.ModelApi;
 import com.example.jolvre.user.entity.User;
 import com.example.jolvre.user.service.UserService;
 import jakarta.transaction.Transactional;
@@ -40,8 +39,7 @@ public class ExhibitService {
     private final DiaryRepository diaryRepository;
     private final ExhibitCommentRepository exhibitCommentRepository;
     private final ExhibitQueryDslRepository exhibitQueryDslRepository;
-    private final ModelApi modelApi;
-
+
     @Transactional
     public ExhibitUploadResponse uploadExhibit(ExhibitUploadRequest request, Long userId) {
 
@@ -116,15 +114,15 @@ public ExhibitUploadResponse uploadExhibitAsync(ExhibitUploadRequest request, Lo
         }
 
         CompletableFuture<Void> uCompletableFuture = CompletableFuture.supplyAsync(() -> {
-            save.setImage3d(modelApi.get3DModelUrl(request.getThumbnail()));
+//            save.setImage3d(model3D.get3DModelUrl(request.getThumbnail())); //여기다 모델 서버 연결
             exhibitRepository.save(save);
             return null;
         });
 
         return ExhibitUploadResponse.builder().exhibitId(save.getId()).build();
     }
 
-    @Transactional
+    @Transactional //상세 전시 조회
     public ExhibitInfoResponse getExhibitInfo(Long id) {
         Exhibit exhibit = exhibitRepository.findById(id).orElseThrow(ExhibitNotFoundException::new);
 
@@ -140,7 +138,7 @@ public ExhibitInfoResponses getAllExhibitInfo() {
                 .build();
     }
 
-    @Transactional
+    @Transactional //해당 유저에 모든 전시 조회
     public ExhibitInfoResponses getAllUserExhibitInfo(Long userId) {
         User user = userService.getUserById(userId);
 
@@ -160,7 +158,7 @@ public ExhibitInfoResponses getAllExhibitInfoByWorkType(String workType) {
                 .build();
     }
 
-    @Transactional
+    @Transactional // 전시 삭제
     public void deleteExhibit(Long exhibitId, Long userId) {
         exhibitImageRepository.deleteAllByExhibitId(exhibitId);
         diaryRepository.deleteAllByExhibitId(exhibitId);
@@ -171,18 +169,18 @@ public void deleteExhibit(Long exhibitId, Long userId) {
         exhibitRepository.delete(exhibit);
     }
 
-    @Transactional
+    @Transactional // 전시 아이디를 통한 전시 엔티티 조회
     public Exhibit getExhibitById(Long id) {
         return exhibitRepository.findById(id).orElseThrow(ExhibitNotFoundException::new);
     }
 
-    @Transactional
+    @Transactional // 유저 아이디 + 전시 아이디 를 통한 전시 엔티티 조회
     public Exhibit getExhibitByIdAndUserId(Long exhibitId, Long userId) {
         return exhibitRepository.findByIdAndUserId(exhibitId, userId)
                 .orElseThrow(ExhibitNotFoundException::new);
     }
 
-    @Transactional
+    @Transactional //전시 배포 처리
     public void distributeExhibit(Long exhibitId, Long userId) {
         Exhibit exhibit = exhibitRepository.findByIdAndUserId(exhibitId, userId)
                 .orElseThrow(ExhibitNotFoundException::new);
@@ -192,7 +190,7 @@ public void distributeExhibit(Long exhibitId, Long userId) {
         exhibitRepository.save(exhibit);
     }
 
-    @Transactional
+    @Transactional //전시 업데이트
     public void updateExhibit(Long exhibitId, Long userId, ExhibitUpdateRequest request) {
         Exhibit exhibit = exhibitRepository.findByIdAndUserId(exhibitId, userId).orElseThrow(
                 ExhibitNotFoundException::new);
@@ -221,7 +219,7 @@ public void updateExhibit(Long exhibitId, Long userId, ExhibitUpdateRequest requ
         exhibitRepository.save(exhibit);
     }
 
-    @Transactional
+    @Transactional //초대장 생성
     public ExhibitInvitationResponse createInvitation(Long exhibitId) {
         Exhibit exhibit = exhibitRepository.findById(exhibitId).orElseThrow(
                 ExhibitNotFoundException::new);
@@ -234,13 +232,9 @@ public ExhibitInvitationResponse createInvitation(Long exhibitId) {
 
     }
 
+    // 키워드 기반 전시 조회
     public Page<ExhibitInfoResponse> getExhibitInfoByKeyword(String keyword, Pageable pageable) {
-//        if (keyword == null) {
-//            return exhibitRepository.findAllByDistribute(true, pageable).map(ExhibitInfoResponse::toDTO);
-//        }
-//        return exhibitRepository.findByDistributeAndTitleContaining(true, keyword, pageable)
-//                .map(ExhibitInfoResponse::toDTO);
-//
         return exhibitQueryDslRepository.findAllByFilter(true, keyword, pageable);
     }
+
 }

src/main/java/com/example/jolvre/external/ModelApi.java

@@ -1,15 +1,19 @@
-package com.example.jolvre.external;
-
-import org.springframework.cloud.openfeign.FeignClient;
-import org.springframework.stereotype.Component;
-import org.springframework.web.bind.annotation.GetMapping;
-import org.springframework.web.bind.annotation.RequestBody;
-import org.springframework.web.multipart.MultipartFile;
-
-@Component
-@FeignClient(name = "3D Model API", url = "https://model.com/")
-public interface ModelApi {
-    @GetMapping("/model/async")
-    String get3DModelUrl(@RequestBody MultipartFile image);
-}
-
+//package com.example.jolvre.external;
+//
+//import org.springframework.cloud.openfeign.FeignClient;
+//import org.springframework.stereotype.Component;
+//import org.springframework.web.bind.annotation.GetMapping;
+//import org.springframework.web.bind.annotation.RequestBody;
+//import org.springframework.web.multipart.MultipartFile;
+//
+//@Component
+//public class ModelApi {
+//
+//    @Component
+//    @FeignClient
+//    public interface Model3D {
+//        @GetMapping("/model/async")
+//        String get3DModelUrl(@RequestBody MultipartFile image);
+//    }
+//}
+//