jpashop : 컬렉션 조회 v2 (entity -> dto 응답)

jpashop/src/main/java/com/example/jpashop/api/OrderApiController.java

@@ -9,6 +9,7 @@ import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.RestController;
 
 import java.util.List;
+import java.util.stream.Collectors;
 
 @RestController
 @RequiredArgsConstructor
@@ -27,4 +28,12 @@ public class OrderApiController {
         }
         return all;
     }
+
+    @GetMapping("/api/v2/orders")
+    public List<OrderDto> ordersV2() {
+        List<Order> orders = orderRepository.findAllByString(new OrderSearch());
+        return orders.stream()
+                .map(OrderDto::new)
+                .collect(Collectors.toList());
+    }
 }

jpashop/src/main/java/com/example/jpashop/api/OrderDto.java

@@ -0,0 +1,31 @@
+package com.example.jpashop.api;
+
+import com.example.jpashop.domain.Address;
+import com.example.jpashop.domain.Order;
+import com.example.jpashop.domain.OrderItem;
+import lombok.Data;
+import org.springframework.http.ResponseEntity;
+
+import java.time.LocalDateTime;
+import java.util.List;
+import java.util.stream.Collectors;
+
+@Data
+public class OrderDto {
+
+    private Long orderId;
+    private String name;
+    private LocalDateTime orderDate;
+    private Address address;
+    private List<OrderItemDto> orderItems;
+
+    public OrderDto(Order order) {
+        orderId = order.getId();
+        name = order.getMember().getName();
+        orderDate = order.getOrderDate();
+        address = order.getDelivery().getAddress();
+        orderItems = order.getOrderItems().stream()
+            .map(OrderItemDto::new)
+            .collect(Collectors.toList());
+    }
+}

jpashop/src/main/java/com/example/jpashop/api/OrderItemDto.java

@@ -0,0 +1,18 @@
+package com.example.jpashop.api;
+
+import com.example.jpashop.domain.OrderItem;
+import lombok.Data;
+
+@Data
+public class OrderItemDto {
+
+    private String itemName;
+    private int orderPrice;
+    private int count;
+
+    public OrderItemDto(OrderItem orderItem) {
+        itemName = orderItem.getItem().getName();
+        orderPrice = orderItem.getOrderPrice();
+        count = orderItem.getCount();
+    }
+}