AppConifg.java (순수자바로 설정 클래스) public class AppConfig { //memberService는 AppConfig를 통해 불러낸다. //생성자 주입 : 생성자를 통해서 객체를 주입. public MemberService memberService(){ return new MemberServiceImpl(memberRepository()); } public MemberRepository memberRepository(){ return new MemoryMemberRepository(); } public OrderService orderService(){ return new OrderServiceImpl(memberRepository(), discountPolicy()); } ..
