feat: 음식 주문 api 기능 구현

src/main/java/com/kusitms/jipbap/food/FoodService.java

@@ -29,7 +29,6 @@ public class FoodService {
 
     @Transactional
     public CategoryDto registerCategory(RegisterCategoryRequestDto dto) {
-        System.out.println(dto.getName());
         Category category = categoryRepository.save(
                 new Category(null, dto.getName(), dto.getImage())
         );

src/main/java/com/kusitms/jipbap/order/Order.java

@@ -1,9 +1,7 @@
 package com.kusitms.jipbap.order;
 
 import com.kusitms.jipbap.common.entity.DateEntity;
-import com.kusitms.jipbap.food.Category;
 import com.kusitms.jipbap.food.Food;
-import com.kusitms.jipbap.store.Store;
 import com.kusitms.jipbap.user.User;
 import jakarta.persistence.*;
 import lombok.AllArgsConstructor;

src/main/java/com/kusitms/jipbap/order/OrderController.java

@@ -0,0 +1,29 @@
+package com.kusitms.jipbap.order;
+
+import com.kusitms.jipbap.common.response.CommonResponse;
+import com.kusitms.jipbap.food.dto.CategoryDto;
+import com.kusitms.jipbap.food.dto.RegisterCategoryRequestDto;
+import com.kusitms.jipbap.order.dto.OrderDto;
+import com.kusitms.jipbap.order.dto.OrderFoodRequestDto;
+import io.swagger.v3.oas.annotations.Operation;
+import lombok.RequiredArgsConstructor;
+import org.springframework.http.HttpStatus;
+import org.springframework.web.bind.annotation.*;
+
+import javax.validation.Valid;
+
+@RestController
+@RequestMapping("/order")
+@RequiredArgsConstructor
+public class OrderController {
+
+    private final OrderService orderService;
+
+    @Operation(summary = "음식 주문하기")
+    @PostMapping("/food")
+    @ResponseStatus(HttpStatus.CREATED)
+    public CommonResponse<OrderDto> orderFood(@Valid @RequestBody OrderFoodRequestDto dto) {
+        return new CommonResponse<>(orderService.orderFood(dto));
+    }
+
+}

src/main/java/com/kusitms/jipbap/order/OrderRepository.java

@@ -0,0 +1,7 @@
+package com.kusitms.jipbap.order;
+
+import com.kusitms.jipbap.food.Food;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface OrderRepository extends JpaRepository <Order, Long> {
+}

src/main/java/com/kusitms/jipbap/order/OrderService.java

@@ -0,0 +1,36 @@
+package com.kusitms.jipbap.order;
+
+import com.kusitms.jipbap.food.Category;
+import com.kusitms.jipbap.food.Food;
+import com.kusitms.jipbap.food.FoodRepository;
+import com.kusitms.jipbap.food.dto.CategoryDto;
+import com.kusitms.jipbap.food.exception.FoodNotExistsException;
+import com.kusitms.jipbap.order.dto.OrderDto;
+import com.kusitms.jipbap.order.dto.OrderFoodRequestDto;
+import com.kusitms.jipbap.user.User;
+import com.kusitms.jipbap.user.UserRepository;
+import com.kusitms.jipbap.user.exception.UserNotFoundException;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.stereotype.Service;
+
+@Slf4j
+@Service
+@RequiredArgsConstructor
+public class OrderService {
+
+    private final OrderRepository orderRepository;
+    private final UserRepository userRepository;
+    private final FoodRepository foodRepository;
+
+    public OrderDto orderFood(OrderFoodRequestDto dto) {
+        User user = userRepository.findById(dto.getUser()).orElseThrow(()-> new UserNotFoundException("유저 정보가 존재하지 않습니다."));
+        Food food = foodRepository.findById(dto.getFood()).orElseThrow(()-> new FoodNotExistsException("해당 음식은 유효하지 않습니다."));
+
+        Order order = orderRepository.save(
+                new Order(null, user, food, dto.getOrderCount())
+        );
+
+        return new OrderDto(order.getId(), user.getId(), food.getId(), order.getOrderCount());
+    }
+}

src/main/java/com/kusitms/jipbap/order/dto/OrderDto.java

@@ -0,0 +1,19 @@
+package com.kusitms.jipbap.order.dto;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.Setter;
+
+@Getter
+@Setter
+@AllArgsConstructor
+public class OrderDto {
+
+    private Long id;
+
+    private Long user;
+
+    private Long food;
+
+    private Long orderCount;
+}

src/main/java/com/kusitms/jipbap/order/dto/OrderFoodRequestDto.java

@@ -0,0 +1,15 @@
+package com.kusitms.jipbap.order.dto;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.Setter;
+
+@Getter
+@Setter
+public class OrderFoodRequestDto {
+    private Long user;
+
+    private Long food;
+
+    private Long orderCount;
+}