AOP 수강 중 에러.

질문탭으로 가야하는데 고민으로 작성했네요... 수정으로는 이동이 안되는데 이동 가능하다면 부탁드립니다.ㅠㅠ

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AOP 수강 중 에러가 발생했는데 어디를 건드려야할지 잘 모르겠어서 문의 남깁니다.

우선 강의와 다른 환경으로 실습해보고 있어 조금씩 코드가 다릅니다.

먼저 에러 메세지는 아래 2개입니다.

1. org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'memberController' defined in file [D:\dev\java\hello-spring\out\production\classes\hello\hellospring\controller\MemberController.class]: Unsatisfied dependency expressed through constructor parameter 0: No qualifying bean of type 'hello.hellospring.service.MemberService' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {}

2. Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'hello.hellospring.service.MemberService' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {}

2번 메세지를 보게 되면 MemberService타입의 Qualifying 한 bean이 존재하지 않아 wiring 할수 없다는 에러인데. 스프링을 처음 해보는 입장에서는 그대로 따라 쳤는데 되지 않아 어떻게 더 수정해야할지 고민입니다.

관련된 코드 블럭을 첨부 드립니다.

SpringConfig.Java

package hello.hellospring;

import hello.hellospring.repository.*;
import hello.hellospring.service.MemberService;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

@Configuration
public class SpringConfig {

//    private EntityManager em;
    private final MemberRepository memberRepository;

    public SpringConfig(MemberRepository memberRepository) {
        this.memberRepository = memberRepository;
    }

//    public SpringConfig(EntityManager em) {
//        this.em = em;
//    }

    @Bean
    public MemberService memberService(){
        return new MemberService(memberRepository);
    }

//    @Bean
//    public MemberRepository memberRepository(){
////        return new MemoryMemberRepository();
////        return new JdbcMemberRepository(dataSource);
////        return new JdbcTemplateMemberRepository(dataSource);
////        return new JpaMemberRepository(em);
//    }
}

MemberService.Java

package hello.hellospring.service;

import hello.hellospring.domain.Member;
import hello.hellospring.repository.MemberRepository;
import hello.hellospring.repository.JdbcMemberRepository;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.util.List;
import java.util.Optional;

@Component
public class MemberService {
    private final MemberRepository memberRepository;

    @Autowired
    public MemberService(MemberRepository memberRepository) {
        this.memberRepository = memberRepository;
    }

    /*
     * 회원가입
     */

    public Long join(Member member){
        //같은 이름이 있느 중복 회원X
        validatedDuplicateMember(member);
        memberRepository.save(member);
        return member.getId();
    }

    private void validatedDuplicateMember(Member member) {
        memberRepository.findByName(member.getName())
                .ifPresent(m -> {
                    throw new IllegalStateException("이미 존재하는 회원입니다.");
                });
    }

    public List<Member> findMembers(){
        return memberRepository.findAll();
    }

    public Optional<Member> findOne(Long memberId){
        return memberRepository.findById(memberId);
    }
}

application.properties

spring.datasource.url=jdbc:h2:tcp://localhost/~/test
spring.datasource.driver-class-name=org.h2.Driver
spring.jpa.show-sql=true
spring.jpa.hibernate.ddl-auto=none
spring.datasource.username=sa

gradle

plugins {
	id 'java'
	id 'org.springframework.boot' version '3.2.1'
	id 'io.spring.dependency-management' version '1.1.4'
}

group = 'hello'
version = '0.0.1-SNAPSHOT'

java {
	sourceCompatibility = '21'
}

repositories {
	mavenCentral()
}

dependencies {
	implementation 'org.springframework.boot:spring-boot-starter-thymeleaf'
	implementation 'org.springframework.boot:spring-boot-starter-web'
	testImplementation 'org.springframework.boot:spring-boot-starter-test'
//	implementation 'org.springframework.boot:spring-boot-starter-jdbc'
	implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
	runtimeOnly 'com.h2database:h2'
}

tasks.named('test') {
	useJUnitPlatform()
}

MemberController.java

package hello.hellospring.controller;

import hello.hellospring.domain.Member;
import hello.hellospring.service.MemberService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;

import java.util.List;

@Controller
public class MemberController {

    private final MemberService memberService;

    @Autowired
    public MemberController(MemberService memberService) {
        this.memberService = memberService;
    }

    @GetMapping("/members/new")
    public String createForm() {
        return "members/createMemberForm";
    }

    @PostMapping("/members/new")
    public String create(MemberForm form){
        Member member = new Member();
        member.setName(form.getName());
        memberService.join(member);
        return "redirect:/";
    }

    @GetMapping("members")
    public String list(Model model){
        List<Member> members = memberService.findMembers();
        model.addAttribute("members", members);
        return "members/memberList";
    }
}

감사합니다.