feat: 재료 조회 기능 구현

refrigerator/src/main/java/moja/refrigerator/controller/ingredient/IngredientController.java

@@ -1,12 +1,12 @@
 package moja.refrigerator.controller.ingredient;
 
 import moja.refrigerator.dto.ingredient.request.IngredientCreateRequest;
+import moja.refrigerator.dto.ingredient.response.IngredientResponse;
 import moja.refrigerator.service.ingredient.IngredientService;
 import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.web.bind.annotation.PostMapping;
-import org.springframework.web.bind.annotation.RequestBody;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
 
 @RestController
 @RequestMapping("/ingredient")
@@ -18,8 +18,15 @@ public IngredientController(IngredientService ingredientService) {
         this.ingredientService = ingredientService;
     }
 
+    // 재료 등록
     @PostMapping
     public void createIngredient(@RequestBody IngredientCreateRequest request) {
         ingredientService.createIngredient(request);
     }
+
+    // 재료 조회
+    @GetMapping
+    public List<IngredientResponse> getIngredient() {
+        return ingredientService.getIngredient();
+    }
 }

refrigerator/src/main/java/moja/refrigerator/dto/ingredient/response/IngredientResponse.java

@@ -0,0 +1,24 @@
+package moja.refrigerator.dto.ingredient.response;
+
+import lombok.Data;
+
+@Data
+public class IngredientResponse {
+    private long ingredientManagementPk;
+    private String ingredientName;
+    private String expirationDate;
+    private String registrationDate;
+    private int seasonDate;
+
+    // ModelMapper를 위한 기본 생성자 생성
+    public IngredientResponse() {}
+
+    // 생성자
+    public IngredientResponse(long ingredientManagementPk, String ingredientName, String expirationDate, String registrationDate, int seasonDate) {
+        this.ingredientManagementPk = ingredientManagementPk;
+        this.ingredientName = ingredientName;
+        this.expirationDate = expirationDate;
+        this.registrationDate = registrationDate;
+        this.seasonDate = seasonDate;
+    }
+}

refrigerator/src/main/java/moja/refrigerator/service/ingredient/IngredientService.java

@@ -1,7 +1,11 @@
 package moja.refrigerator.service.ingredient;
 
 import moja.refrigerator.dto.ingredient.request.IngredientCreateRequest;
+import moja.refrigerator.dto.ingredient.response.IngredientResponse;
+
+import java.util.List;
 
 public interface IngredientService {
-    void createIngredient(IngredientCreateRequest request);
+    void createIngredient(IngredientCreateRequest request); // 재료 등록 메서드
+    List<IngredientResponse> getIngredient(); // 재료 조회 메서드
 }

refrigerator/src/main/java/moja/refrigerator/service/ingredient/IngredientServiceImpl.java

@@ -5,13 +5,17 @@
 //import moja.refrigerator.aggregate.ingredient.IngredientStorage;
 import moja.refrigerator.dto.ingredient.request.IngredientCreateRequest;
 //import moja.refrigerator.repository.ingredient.IngredientCategoryRepository;
+import moja.refrigerator.dto.ingredient.response.IngredientResponse;
 import moja.refrigerator.repository.ingredient.IngredientManagementRepository;
 //import moja.refrigerator.repository.ingredient.IngredientStorageRepository;
 import org.modelmapper.ModelMapper;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
+import java.util.List;
+import java.util.stream.Collectors;
+
 @Service
 public class IngredientServiceImpl implements IngredientService{
 
@@ -45,6 +49,18 @@ public void createIngredient(IngredientCreateRequest request) {
 //        ingredient.setIngredientCategory(category);
 //        ingredient.setIngredientStorage(storage);
 
+        // 재료를 JpaRepository의 save() 메소드로 DB에 저장 !
         ingredientManagementRepository.save(ingredient);
     }
+
+    @Override
+    @Transactional(readOnly = true)
+    public List<IngredientResponse> getIngredient() {
+        List<IngredientManagement> ingredients = ingredientManagementRepository.findAll();
+
+        return ingredients.stream()
+                .map(ingredient -> mapper.map(ingredient, IngredientResponse.class))
+                .collect(Collectors.toList());
+    }
+
 }