10강 실습관련 질문

10강 실습 코드를 그래로 입력했을때, 아래와 같은 오류가 발생했습니다.

Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'restaurantController': Unsatisfied dependency expressed through field 'r_repository'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'com.springproject.eatgo.domain.RestaurantRepository' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}

코드는 아래와 같습니다. 제대로 입력한 것 같은데.. 뭐가 문제인 걸까요?

계속 오류에 대해서 찾아보니 @RestController @ComponentScan(basePackages = {"com.springproject.eatgo.domain"}) // 스캔할 패키지를 정의 public class RestaurantController {

처럼 RestaurantController 클래스 위에 "@ComponentScan"로 스캔한 패키지를 정의했더니, 오류가 해결되었습니다.

★ 최종 질문 : 그렇다면... @Autowired를 사용할 때는 "@ComponentScan" 를 필수로 추가해야 하는 것인가요? 추가하지 않도록, 환경설정으로 처리할 수 있는지 궁금합니다. 수업에서 언급되지 않은 부분이라 추가 질문 남깁니다.★

감사합니다. =====================*=========================

package com.springproject.eatgo.domain; import org.springframework.stereotype.Component; import java.util.ArrayList; import java.util.List; @Component public class RestaurantRepository { private List restaurants = new ArrayList<>(); // 생성자 public RestaurantRepository(){ restaurants.add( new Restaurant(1004L,"Bob zip", "Seoul")); restaurants.add( new Restaurant(2020L,"Cyber Food", "Seoul")); } public List findAll() { return restaurants; } public Restaurant findById(Long id) { return restaurants.stream() .filter(r -> r.getId().equals(id)) .findFirst() .orElse(null); } } ======================*======================== package com.springproject.eatgo.interfaces; import org.springframework.beans.factory.annotation.Autowired; import com.springproject.eatgo.domain.Restaurant; import com.springproject.eatgo.domain.RestaurantRepository; import org.springframework.context.annotation.ComponentScan; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.PathVariable; import org.springframework.web.bind.annotation.RestController; import java.util.List; @RestController public class RestaurantController { @Autowired private RestaurantRepository repository; @GetMapping("/restaurants") public List list(){ List restaurants = repository.findAll(); return restaurants; } @GetMapping("/restaurants/{id}") public Restaurant detail(@PathVariable("id") Long id){ Restaurant restaurant = repository.findById(id); return restaurant; } }

ahastudio / fastcampus-eatgo

10강 실습관련 질문 #23