fix: wishlist(찜기능) 조회기능 추가

src/main/java/com/kt/controller/wishlist/WishlistController.java

@@ -1,13 +1,19 @@
 package com.kt.controller.wishlist;
 
+import java.util.List;
+
+import org.springframework.http.HttpStatus;
 import org.springframework.security.core.annotation.AuthenticationPrincipal;
 import org.springframework.web.bind.annotation.DeleteMapping;
+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.RequestMapping;
+import org.springframework.web.bind.annotation.ResponseStatus;
 import org.springframework.web.bind.annotation.RestController;
 
 import com.kt.common.response.ApiResult;
+import com.kt.dto.wishlist.WishlistResponse;
 import com.kt.security.CustomUserDetails;
 import com.kt.service.wishlist.WishlistService;
 
@@ -24,12 +30,12 @@ public class WishlistController {
 
 	@PostMapping("/{productId}")
 	@Operation(summary = "찜 추가")
-	public ApiResult<Void> addWishlist(
+	public ApiResult<Long> addWishlist(
 		@AuthenticationPrincipal CustomUserDetails currentUser,
 		@PathVariable Long productId
 	) {
-		wishlistService.addWishlist(currentUser.getId(), productId);
-		return ApiResult.ok();
+		Long wishlistId = wishlistService.addWishlist(currentUser.getId(), productId);
+		return ApiResult.ok(wishlistId);
 	}
 
 	@DeleteMapping("/{productId}")
@@ -51,6 +57,18 @@ public ApiResult<Void> removeAllWishlist(
 		return ApiResult.ok();
 	}
 
+	@GetMapping
+	@ResponseStatus(HttpStatus.OK)
+	@Operation(summary = "찜 목록 조회")
+	public ApiResult<List<WishlistResponse>> getWishlists(
+		@AuthenticationPrincipal CustomUserDetails currentUser
+	) {
+		List<WishlistResponse> wishlists = wishlistService.getWishlists(currentUser.getId());
+		return ApiResult.ok(wishlists);
+	}
+
+
+
 
 
 }

src/main/java/com/kt/dto/wishlist/WishlistResponse.java

@@ -0,0 +1,30 @@
+package com.kt.dto.wishlist;
+
+import java.time.LocalDateTime;
+
+import com.kt.domain.wishlist.Wishlist;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+@Getter
+@NoArgsConstructor
+@AllArgsConstructor
+public class WishlistResponse {
+	private Long id;
+	private Long productId;
+	private String productName;
+	private Long price;
+	private LocalDateTime createdAt;
+
+	public static WishlistResponse from(Wishlist wishlist){
+		return new WishlistResponse(
+			wishlist.getId(),
+			wishlist.getProduct().getId(),
+			wishlist.getProduct().getName(),
+			wishlist.getProduct().getPrice(),
+			wishlist.getCreatedAt()
+		);
+	}
+}

src/main/java/com/kt/repository/wishlist/WishlistRepository.java

@@ -2,30 +2,32 @@
 
 import java.util.List;
 
+import org.springframework.data.domain.Page;
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.data.jpa.repository.Query;
+import org.springframework.data.repository.query.Param;
 import org.springframework.stereotype.Repository;
 
 import com.kt.domain.wishlist.Wishlist;
 
 @Repository
 public interface WishlistRepository extends JpaRepository<Wishlist,Long> {
-    boolean existsByUserIdAndProductId(Long userId, Long productId);
-    List<Wishlist> findByUserId(Long userId);
-    List<Wishlist> findByProductId(Long productId);
+	boolean existsByUserIdAndProductId(Long userId, Long productId);
+	List<Wishlist> findByUserId(Long userId);
+	List<Wishlist> findByProductId(Long productId);
 
-    void deleteByUserIdAndProductId(Long userId, Long productId);
+	void deleteByUserIdAndProductId(Long userId, Long productId);
 
-    void deleteByUserId(Long userId);
+	void deleteByUserId(Long userId);
 
-    //상품을 찜한 유저 이메일만 뽑는 쿼리, jpa는 비효율적이라 사용x
-    @Query("""
+	//상품을 찜한 유저 이메일만 뽑는 쿼리, jpa는 비효율적이라 사용x
+	@Query("""
         select distinct u.email
         from Wishlist w
         join w.user u
         where w.product.id = :productId
           and u.isDeleted = false
           and u.email is not null
     """)
-    List<String> findDistinctEmailsByProductId(Long productId);
-}
+	List<String> findDistinctEmailsByProductId(Long productId);
+}

src/main/java/com/kt/service/paymenttype/PaymentTypeService.java

@@ -20,7 +20,6 @@
 public class PaymentTypeService {
 
 	private final PaymentTypeRepository paymentTypeRepository;
-	private final UserRepository userRepository;
 
 	public void create(PaymentTypeCreateRequest request) {
 		PaymentType paymentType = new PaymentType(

src/main/java/com/kt/service/wishlist/WishlistService.java

@@ -1,5 +1,9 @@
 package com.kt.service.wishlist;
 
+import java.util.List;
+import java.util.stream.Collectors;
+
+import org.springframework.data.domain.Page;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
@@ -8,6 +12,7 @@
 import com.kt.domain.product.Product;
 import com.kt.domain.user.User;
 import com.kt.domain.wishlist.Wishlist;
+import com.kt.dto.wishlist.WishlistResponse;
 import com.kt.event.WishlistAddedEvent;
 import com.kt.repository.wishlist.WishlistRepository;
 import com.kt.repository.product.ProductRepository;
@@ -27,7 +32,7 @@ public class WishlistService {
 	private final ProductRepository productRepository;
 	private final ApplicationEventPublisher eventPublisher;
 
-	public void addWishlist(Long userId, Long productId) {
+	public Long addWishlist(Long userId, Long productId) {
 		User user = userRepository.findById(userId)
 			.orElseThrow(() -> new CustomException(ErrorCode.NOT_FOUND_USER));
 
@@ -39,11 +44,12 @@ public void addWishlist(Long userId, Long productId) {
 		}
 
 		Wishlist wishlist = new Wishlist(user, product);
-		wishlistRepository.save(wishlist);
+		Wishlist saveWishlist = wishlistRepository.save(wishlist);
 
 		eventPublisher.publishEvent(
 			new WishlistAddedEvent(userId, productId)
 		);
+		return saveWishlist.getId();
 	}
 
 	@Transactional
@@ -58,4 +64,20 @@ public void removeWishlist(Long userId, Long productId) {
 	public void removeAllWishlist(Long userId) {
 		wishlistRepository.deleteByUserId(userId);
 	}
+
+	@Transactional(readOnly = true)
+	public List<WishlistResponse> getWishlists(Long userId) {
+		var wishlists = wishlistRepository.findByUserId(userId);
+
+		return wishlists.stream()
+			.map(wishlist -> new WishlistResponse(
+				wishlist.getId(),
+				wishlist.getProduct().getId(),
+				wishlist.getProduct().getName(),
+				wishlist.getProduct().getPrice(),
+				wishlist.getCreatedAt()
+			)).toList();
+	}
 }
+
+