안녕하세요 강의 너무 최고입니다.질문이 있습니다. !! 첫번째 질문은http.exceptionHandling().authenticationEntryPoint(new AjaxLoginAuthenticationEntryPoint()).accessDeniedHandler(ajaxAccessDeniedHandler());설정하실때 전자는 생성자를 만들고두번째는 왜 같은 방법으로 생성자를 만들지않고 등록을 하는건가요 ?-> .accessDeniedHandler(ajaxAccessDeniedHandler());이걸.accessDeniedHandler(new AjaxAccessDeniedHandler());이렇게 안하시는 이유가 있나요 ?  두번째 질문은 SecurityConfig 에서@Beanpublic AccessDeniedHandler accessDeniedHandler() {CustomAccessDeniedHandler accessDeniedHandler = new CustomAccessDeniedHandler();accessDeniedHandler.setErrorPage("/denied");return accessDeniedHandler;}이 등록되어있는데.exceptionHandling().authenticationEntryPoint(new LoginUrlAuthenticationEntryPoint("/login")).accessDeniedPage("/denied").accessDeniedHandler(accessDeniedHandler());이 두줄을 추가 하셨습니다.  우선적으로 여기서 첫번째 질문은.accessDeniedPage("/denied")랑accessDeniedHandler.setErrorPage("/denied");이게 같은 역할을 하는것이 아닌가요 ? 그리고 마지막으로.authenticationEntryPoint(new LoginUrlAuthenticationEntryPoint("/login"))이 내용은 CustomAuthenticationFailureHandler 에 설정된setDefaultFailureUrl("/login?error=true&exception=" +errorMessage);super.onAuthenticationFailure(request,response, exception);이게 이미 처리하고 있던 내용 아닌가요 ? 마지막 질문은 .authenticationEntryPoint(new LoginUrlAuthenticationEntryPoint("/login")) 이건인가 예외로 생각하고 CustomAuthenticationFailureHandler 에 설정된 내용은 인증 내용이라고 생각하면 될까요 ?   

@Configuration @EnableWebSecurity @RequiredArgsConstructor public class WebSecurity { private final UserService userService; private final BCryptPasswordEncoder bCryptPasswordEncoder; private final Environment environment; @Bean public SecurityFilterChain filterChain(HttpSecurity http) throws Exception { http.csrf(AbstractHttpConfigurer::disable) .authorizeHttpRequests(request ->{ request.requestMatchers(antMatcher("/actuator/**")).permitAll(); request.requestMatchers(antMatcher("/**")).permitAll();}) // .headers(header -> header.frameOptions( // frameOptionsConfig -> frameOptionsConfig.disable())) .apply(new MyCustomSecurity()); return http.build(); } public class MyCustomSecurity extends AbstractHttpConfigurer<MyCustomSecurity, HttpSecurity> { @Override public void configure(HttpSecurity http) throws Exception { AuthenticationManager authenticationManager = http.getSharedObject( AuthenticationManager.class); AuthenticationFilter authenticationFilter = new AuthenticationFilter(authenticationManager, userService, environment); http.addFilter(authenticationFilter); } protected void configure2(AuthenticationManagerBuilder auth) throws Exception { auth.userDetailsService(userService).passwordEncoder(bCryptPasswordEncoder); } } }해당 코드는 앞 내용까지 포함하여 설정이 적용된 버전입니다. 저같은 경우는 처음부터 mysql로 진행하여서 h2 콘솔을 사용하지 않아 frameOptions를 주석처리 하였으나, 혹여나 h2 콘솔 사용하시는 분은 주석 해제 후 사용하시면 되고, 23.08.10 기준으로 hasIpAddress는 사용 불가능합니다.

 @Configuration @EnableAspectJAutoProxy public class MetricsConfig { @Bean public TimedAspect timedAspect(MeterRegistry registry) { return new TimedAspect(registry); } }해당 config 파일을 추가해주세요.

안녕하세요 호돌맨 선생님!세션토큰 발급기능 추가를 초반에 보다가 로그인 관련 테스트를 직접 작성해보라고 하셔서 해봤는데 궁금한 점이 있어서 질문드립니다!작성한코드@Test @DisplayName("인증 테스트") void test11() throws Exception { // given Member member = Member.builder() .email("abc@naver.com") .password("1234") .build(); // UserRepository를 MemeberRepository로 이름 변경 했습니다. memberRepository.save(member); Login login = Login.builder() .email("abc@naver.com") .password("1234") .build(); String json = objectMapper.writeValueAsString(login); // expected mockMvc.perform(post("/auth/login") .contentType(APPLICATION_JSON) .content(json) ) .andExpect(status().isOk()) .andDo(print()); 결과query did not return a unique result: 2; nested exception is javax.persistence.NonUniqueResultException: query did not return a unique result: 2 원인JPA 에러라는 것을 검색을 통해서 알았습니다해결 방법 블로그 주소 : https://wakestand.tistory.com/943UserRepository에 작성한 findByEmailAndPassWord 메서드가 Optional로 되어 있는데 이 부분을 List로 변경해야할 것 같아서 다음과 같이 변경했습니다 변경된 코드UserRepositorypublic interface MemberRepository extends CrudRepository<Member, Long> { List<Member> findByEmailAndPassword(String email, String password); }AuthService@Service @RequiredArgsConstructor public class AuthService { private final MemberRepository memberRepository; public List<Member> signin(Login login) { List<Member> memberList = Optional.ofNullable(memberRepository.findByEmailAndPassword(login.getEmail(), login.getPassword())) .orElseThrow(() -> new InvalidSign()); return memberList; } } 위 처럼 Optional<Member가 아닌 List<Member>로 변경해서 테스트 로직을 성공하긴했습니다...  질문UserRepository의 Optional<Member>를 변경하지 않고 테스트 코드를 작성하는 방법이 있을까요??Optional에서 List로 변경했을 때 문제점은 없을까요? 

학습하는 분들께 도움이 되고, 더 좋은 답변을 드릴 수 있도록 질문전에 다음을 꼭 확인해주세요.1. 강의 내용과 관련된 질문을 남겨주세요.2. 인프런의 질문 게시판과 자주 하는 질문(링크)을 먼저 확인해주세요.(자주 하는 질문 링크: https://bit.ly/3fX6ygx)3. 질문 잘하기 메뉴얼(링크)을 먼저 읽어주세요.(질문 잘하기 메뉴얼 링크: https://bit.ly/2UfeqCG)질문 시에는 위 내용은 삭제하고 다음 내용을 남겨주세요.=========================================[질문 템플릿]1. 강의 내용과 관련된 질문인가요? (예/아니오)예2. 인프런의 질문 게시판과 자주 하는 질문에 없는 내용인가요? (예/아니오)예3. 질문 잘하기 메뉴얼을 읽어보셨나요? (예/아니오)[질문 내용]여기에 질문 내용을 남겨주세요.저번에 했을때 jdbc:h2:tcp://localhost/~/test 경로인데 이걸 못바꾸겠어요 새로운 경로로 다시만들고 싶은데 어떻게 바꾸는건지 시작화면에서 바꾸니깐 Database "C:/Users/ckehq/jpashop" not found, either pre-create it or allow remote database creation (not recommended in secure environments) [90149-220] 90149/90149 에러만 떠요...

window11 / 23.08.09 기준으로 kafka connect 버전을 7.1 버전으로 사용하시길 바랍니다.해당 강의의 6.1 버전에서 properties 경로를 못찾아서 버전업을 했더니 해결 했습니다.

안녕하세요. 강의 코드를 참고하며 1:N 양방향 매핑을 시도하고 있습니다.다른 테이블에서는 성공적으로 해서 정말 다른거 없이 똑같이 매핑해서 테스트를 진행중이었는데정말 이유를 모르겠는게 객체가 생성되면서 멤버 변수가 초기화가 되어야 하는데 되지 않아 null값이 들어가있고.null 값이 들어간 List에 add를 하려고 하니 NullPointerException이 나고 있습니다.같은 로직, 같은 OneToMany 매핑을 한 다른 엔티티 에서는 잘 되었는데 해당 부분에서 어떤 이유로 생성될때 멤버변수가 초기화가 되지 않는지 도무지 잘 모르겠습니다.. 이유를 아시는분 도와주시면 정말 감사하겠습니다.정상적으로 진행된 매핑 및 코드는 아래와 같습니다.@Entity @Inheritance(strategy = InheritanceType.JOINED) @DiscriminatorColumn(name = "dtype") @DiscriminatorValue("my") @Table(name="my_wallets") @Getter @Setter public class MyWallet { @Id @GeneratedValue @Column(name = "wallet_id") private Long id; private Integer balance=0; //cascade = Persist 속성을 명시해줌으로써, 영속성 전이를 사용하였음. //orphanRemoval = true 를 사용해서 고아 객체를 자동으로 제거 함. @OneToMany(mappedBy = "wallet", cascade = CascadeType.PERSIST,orphanRemoval = true) private List<Transactions> transactions = new ArrayList<>(); public void addTransactions(Transactions transaction){ this.transactions.add(transaction); transaction.setWallet(this); } ------------------------------------- @Entity @Table(name = "transactions") @Getter @Setter @ToString @AllArgsConstructor @NoArgsConstructor @Builder public class Transactions { @Id @GeneratedValue(strategy = GenerationType.IDENTITY) @Column(name = "transaction_id") private Long id; @ManyToOne(fetch = FetchType.LAZY) @JoinColumn(name = "wallet_id") @Setter private MyWallet wallet; private Long counterId; private Timestamp transactionDate; private String transactionType; private Integer amount; private String location; private Integer balance; private Boolean success; } ----------------------테스트 부분 Transactions t = Transactions.builder() .amount(100) .balance(200) .success(Boolean.TRUE) .build(); MyWallet m1 = createMyWallet(); m1.addTransactions(t); em.persist(m1);컴파일 에러도 없고, 정상적으로 h2 db에 들어가는것을 확인 했습니다.그런데 같은 로직으로 진행한 연관관계 메서드에서 오류가 발생했습니다.문제가 되는 코드들은 아래와 같습니다. import lombok.*; import javax.persistence.*; import java.util.ArrayList; import java.util.List; @Entity @Table(name = "article") @Getter @Setter @ToString @AllArgsConstructor @NoArgsConstructor @Builder public class Article { @Id @GeneratedValue(strategy = GenerationType.IDENTITY) @Column(name = "article_id") private Long id; private Long walletId; private Long imageId; @OneToOne(fetch = FetchType.LAZY) @JoinColumn(name = "transaction_id") private Transactions transaction; @OneToMany(mappedBy = "article",cascade = CascadeType.PERSIST, orphanRemoval = true) private List<Comments> comments = new ArrayList<>(); // List<Commnets> comments = new ArrayList 를 해주었음에도 null이 들어가있음. public void addComment(Comments comment){ //따라서 null 에 add 를 하려고 하니 NullPointerException이 발생합니다.. comments.add(comment); comment.setArticle(this); } } import lombok.*; import javax.persistence.*; import java.sql.Timestamp; @Entity @Table(name = "comments") @Getter @ToString @AllArgsConstructor @NoArgsConstructor @Builder @Setter public class Comments { @Id @GeneratedValue(strategy = GenerationType.IDENTITY) @Column(name = "comment_id") private Long commentId; @ManyToOne(fetch = FetchType.LAZY, cascade = CascadeType.ALL) @JoinColumn(name = "article_id") @Setter private Article article; private Long writerId; private String content; private Timestamp postedDate; }  이 아래는 실행해봤던 테스트 코드중 발생하는 위치의 코드입니다.. Article article = Article.builder() .imageId(99L) .walletId(1L) .imageId(-99L) .build(); em.persist(article); Comments comment = Comments.builder().content("컨텐츠1").writerId(123L).build(); System.out.println("comment = " + comment.toString()); em.persist(comment); article.addComment(comment); //이 부분이 문제..persist를 안해줘서 그런가 싶어서 앞뒤로 옮기며 확인해봤는데 여전히 필드 초기화가 되지 않아서 정말 의문입니다 제가 기본적으로 무엇을 놓치고 있는걸까요 ㅠㅠ 테스트 코드에서 무언가 잘못했을까 싶어 전체 코드도 남겨봅니다. import lombok.RequiredArgsConstructor; import org.apache.tomcat.jni.Address; import org.springframework.stereotype.Component; import org.springframework.transaction.annotation.Transactional; import javax.annotation.PostConstruct; import javax.persistence.EntityManager; import java.awt.print.Book; @Component @RequiredArgsConstructor public class initDb { private final InitService initService; @PostConstruct public void init() { initService.doInit1(); // initService.doInit2(); } @Component @Transactional @RequiredArgsConstructor static class InitService { private final EntityManager em; public void doInit1() { Transactions t = Transactions.builder() .amount(100) .balance(200) .success(Boolean.TRUE) .build(); MyWallet m1 = createMyWallet(); m1.addTransactions(t); em.persist(m1); MoimWallet moim = createMoimWallet(1000); em.persist(moim); System.out.println("2차 테스트"); moim.setBalance(100); //Mywallet으로 업 캐스팅 ok MyWallet moim2 = createMoimWallet(2000); em.persist(moim2); User user = new User(null, m1, 1L, "ansik_id", "1234", "안식_name", "981212-121212", "010111", UserType.Parent, null); // user.getUsername("안식씨"); em.persist(user); WalletsAndMember wam = new WalletsAndMember(null, moim, user); em.persist(wam); WalletsAndMember wam2 = new WalletsAndMember(null, (MoimWallet) moim2, user); em.persist(wam2); Article article = Article.builder() .imageId(99L) .walletId(1L) .imageId(-99L) .build(); em.persist(article); Comments comment = Comments.builder().content("컨텐츠1").writerId(123L).build(); System.out.println("comment = " + comment.toString()); em.persist(comment); System.out.println("comment = " + comment.toString()); // comment.setArticle(article); article.addComment(comment); // article.getComments().add(comment); em.persist(article); em.flush(); em.clear(); } private static MyWallet createMyWallet() { MyWallet myWallet = new MyWallet(); return myWallet; } private static MoimWallet createMoimWallet(int amount) { MoimWallet moimWallet = new MoimWallet(); moimWallet.setTarget_amount(amount); return moimWallet; } } } 아래에 에러 로그를 남겨봅니다Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled. 2023-08-10 00:59:32.985 ERROR 47056 --- [ restartedMain] o.s.boot.SpringApplication : Application run failed org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'initDb': Invocation of init method failed; nested exception is java.lang.NullPointerException at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessBeforeInitialization(InitDestroyAnnotationBeanPostProcessor.java:160) ~[spring-beans-5.3.28.jar:5.3.28] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsBeforeInitialization(AbstractAutowireCapableBeanFactory.java:440) ~[spring-beans-5.3.28.jar:5.3.28] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1796) ~[spring-beans-5.3.28.jar:5.3.28] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:620) ~[spring-beans-5.3.28.jar:5.3.28] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542) ~[spring-beans-5.3.28.jar:5.3.28] at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[spring-beans-5.3.28.jar:5.3.28] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.28.jar:5.3.28] at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.28.jar:5.3.28] at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) ~[spring-beans-5.3.28.jar:5.3.28] at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:955) ~[spring-beans-5.3.28.jar:5.3.28] at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:920) ~[spring-context-5.3.28.jar:5.3.28] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:583) ~[spring-context-5.3.28.jar:5.3.28] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:147) ~[spring-boot-2.7.13.jar:2.7.13] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:731) ~[spring-boot-2.7.13.jar:2.7.13] at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:408) ~[spring-boot-2.7.13.jar:2.7.13] at org.springframework.boot.SpringApplication.run(SpringApplication.java:307) ~[spring-boot-2.7.13.jar:2.7.13] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1303) ~[spring-boot-2.7.13.jar:2.7.13] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1292) ~[spring-boot-2.7.13.jar:2.7.13] at team.ServerApplication.main(ServerApplication.java:12) ~[classes/:na] at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na] at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:na] at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na] at java.base/java.lang.reflect.Method.invoke(Method.java:566) ~[na:na] at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:50) ~[spring-boot-devtools-2.7.13.jar:2.7.13] Caused by: java.lang.NullPointerException: null at team.entities.Article.addComment(Article.java:33) ~[classes/:na] at team.initDb$InitService.doInit1(initDb.java:74) ~[classes/:na] at team.initDb$InitService$$FastClassBySpringCGLIB$$48d5c178.invoke(<generated>) ~[classes/:na] at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218) ~[spring-core-5.3.28.jar:5.3.28] at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:793) ~[spring-aop-5.3.28.jar:5.3.28] at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163) ~[spring-aop-5.3.28.jar:5.3.28] at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:763) ~[spring-aop-5.3.28.jar:5.3.28] at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:123) ~[spring-tx-5.3.28.jar:5.3.28] at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:388) ~[spring-tx-5.3.28.jar:5.3.28] at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:119) ~[spring-tx-5.3.28.jar:5.3.28] at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.3.28.jar:5.3.28] at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:763) ~[spring-aop-5.3.28.jar:5.3.28] at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:708) ~[spring-aop-5.3.28.jar:5.3.28] at team.initDb$InitService$$EnhancerBySpringCGLIB$$3cdef9a7.doInit1(<generated>) ~[classes/:na] at team.initDb.init(initDb.java:22) ~[classes/:na] at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na] at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:na] at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na] at java.base/java.lang.reflect.Method.invoke(Method.java:566) ~[na:na] at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleElement.invoke(InitDestroyAnnotationBeanPostProcessor.java:389) ~[spring-beans-5.3.28.jar:5.3.28] at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleMetadata.invokeInitMethods(InitDestroyAnnotationBeanPostProcessor.java:333) ~[spring-beans-5.3.28.jar:5.3.28] at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessBeforeInitialization(InitDestroyAnnotationBeanPostProcessor.java:157) ~[spring-beans-5.3.28.jar:5.3.28] ... 23 common frames omitted Process finished with exit code 1

mariadb 최신버전 사용시 Dockerfile 그대로 작성시 실행 에러가 발생합니다.저는 sql 을 백업해서 스키마랑 테이블 새로 만들도록 수정해서 해결했습니다.추가로 실행후 mysql 접속도 mysql 명령어가 아닌 mariadb 로 작성하셔야 됩니다.mariadb -h127.0.0.1 -uroot -pmysqldump -u root -p mydb > mydb.sqlFROM mariadb ENV MYSQL_ROOT_PASSWORD test1357 ENV MYSQL_DATABASE mydb COPY ./mydb.sql /docker-entrypoint-initdb.d/ EXPOSE 3306 

=========================================[질문 템플릿]1. 강의 내용과 관련된 질문인가요? (예/아니오)2. 인프런의 질문 게시판과 자주 하는 질문에 없는 내용인가요? (예/아니오)3. 질문 잘하기 메뉴얼을 읽어보셨나요? (예/아니오)[질문 내용]실행했을때 H2 DB에CATEGORY,CATEGORY_ITEM,DELIVERY,ITEM,MEMBER,ORDERS,ORDER_ITEM 테이블이 생성되지않아서 문의드립니다.https://drive.google.com/file/d/1N63HWFHbE41DV2aGqkyVLrSnDDhDPcYg/view?usp=drive_link코드 피드백 해주시면 감사하겠습니다.

@Enumerated(EnumType.STRING)@Column(nullable = false)public UserEnum role; //ADMIN,CUSTOMERUser.java의 role이 위외 같이 nullable=false로 되어있다보니 에러가 뜨는것 같습니다.UserController의 UserRespDto userRespDto = userService.signIn(userReqDto);를 실행했을때UserService의 34번 라인에서 아래와 같이 에러가 뜨네요강사님 코드랑 조금 다른 부분이 있긴합니다. dto에 빌더패턴을 사용중이긴 한데... 음 이거때문에 에러를 뱉는건 아닌거 같긴 합니다.물론, User.java에서 아래와 같이 코드를 수정해주면 문제없이 잘됩니다.@Enumerated(EnumType.STRING)@Columnpublic UserEnum role; //ADMIN,CUSTOMER저만 안되는 부분인지.. 아니면 (nullable = false)를 빼고하는게 맞는건지 궁금해서 질문드려요!감사합니다.

강의자료를 볼 수 있는 github가 있었던 것 같은데아무리 찾아도 없네요.강의자료 다운 혹은 볼 수 있는 주소 좀 알려주세요.

protected AjaxLoginProcessingFilter(String defaultFilterProcessesUrl) {super(new AntPathRequestMatcher("/xxx"));}이렇게 설정하는건 자바에서 직접 설정하는거고이전에 설정파일에서http.authorizeRequests().antMatchers("/xxx") 경로 설정한거랑두개다 같다고 생각하면 되는거죠 ?

학습하는 분들께 도움이 되고, 더 좋은 답변을 드릴 수 있도록 질문전에 다음을 꼭 확인해주세요.1. 강의 내용과 관련된 질문을 남겨주세요.2. 인프런의 질문 게시판과 자주 하는 질문(링크)을 먼저 확인해주세요.(자주 하는 질문 링크: https://bit.ly/3fX6ygx)3. 질문 잘하기 메뉴얼(링크)을 먼저 읽어주세요.(질문 잘하기 메뉴얼 링크: https://bit.ly/2UfeqCG)질문 시에는 위 내용은 삭제하고 다음 내용을 남겨주세요.=========================================[질문 템플릿]1. 강의 내용과 관련된 질문인가요? (예/아니오)2. 인프런의 질문 게시판과 자주 하는 질문에 없는 내용인가요? (예/아니오)3. 질문 잘하기 메뉴얼을 읽어보셨나요? (예/아니오)[질문 내용]해당 강의 52초 경에 MemberService.java클래스에서 private final MemberRepository memberRepository; public MemberService(MemberRepository memberRepository) { this.memberRepository = memberRepository; }//어노테이션은 지웠습니다.이부분에서 public MemberService(MemberRepository memberRepository) 이 괄호안에 매개변수가 MemoryMemberRepository가 되어야 하는게 아닌가요? 제가 저기를 MemoryMemberRepository로 진행을 하고 있더라구요. 그래서 에러가 떳었는데 왜 MemberRepository인지 궁금합니다.

학습하는 분들께 도움이 되고, 더 좋은 답변을 드릴 수 있도록 질문전에 다음을 꼭 확인해주세요.1. 강의 내용과 관련된 질문을 남겨주세요.2. 인프런의 질문 게시판과 자주 하는 질문(링크)을 먼저 확인해주세요.(자주 하는 질문 링크: https://bit.ly/3fX6ygx)3. 질문 잘하기 메뉴얼(링크)을 먼저 읽어주세요.(질문 잘하기 메뉴얼 링크: https://bit.ly/2UfeqCG)질문 시에는 위 내용은 삭제하고 다음 내용을 남겨주세요.=========================================[질문 템플릿]1. 강의 내용과 관련된 질문인가요? (예/아니오)2. 인프런의 질문 게시판과 자주 하는 질문에 없는 내용인가요? (예/아니오)3. 질문 잘하기 메뉴얼을 읽어보셨나요? (예/아니오)[질문 내용]여기에 질문 내용을 남겨주세요. 안녕하세요. 강의 내에서 스프링 없이 테스트 코드를 짜는 것이 좋다고 하신 것을 보고 실제로 테스트 코드는 스프링을 의존하지 않고 짜는 것이 무엇인지 궁금해졌습니다.실제로 강의에서 작성하는 내용 중에, 어느 부분이 스프링에 의존해서 테스트를 한 것인지, 또한 그러한 스프링 의존 테스트를 순수 자바 기반의 테스트로 바꾸며 어떤 식으로 나오게 될지 궁금합니다. 감사합니다.

UserServiceImplString orderUrl = String.format(env.getProperty("order_service.url"), userId);user-service.ymlorder_service: url: http://127.0.0.1:8000/order-service/%s/orders The request was rejected because the URL contained a potentially malicious String "%0A"실행 중에 해당 에러가 발생했습니다.springSecurity가 버전업 되어 %s같은 것들을 사용하지 못하게 막은 것 같은데 해결 방안을 알고 싶습니다.정확한 에러는 아래와 같습니다.org.springframework.security.web.firewall.RequestRejectedException: The request was rejected because the URL contained a potentially malicious String "%0A"*spring Security 2.7.12

# hello-template.html <!DOCTYPE HTML> <html xmlns:th="http://www.thymeleaf.org"> <body> <p th:text="'hello '+ ${name}">hello. empty</p> </body> </html>package sebdev.prac1.controller; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.RequestParam; @Controller public class HelloController { @GetMapping("hello") public String hello(Model model){ model.addAttribute("data","spring"); return "hello"; } @GetMapping("hello-mvc") public String helloMvc(@RequestParam("name") String name, Model model){ model.addAttribute("name", name); return "hello-template"; } } 리턴값 hello-template에 맞춰 hello-template.html으로 맞춰주었는데이런식으로 오류가 납니다.

안녕하세요 강의 잘 듣고 있습니다.!!127.0.0.1:8083/connectors로 POST 요청으로{ "name": "my-source-connect", "config": { "connector.class": "io.confluent.connect.jdbc.JdbcSourceConnector", "connection.url": "jdbc:mariadb://localhost:3306/mydb", "connection.user": "root", "connection.password": "지정한 password", "mode": "incrementing", "incrementing.column.name": "id", "table.whitelist": "users", "topic.prefix": "my_topic_", "tasks.max": "1" } }201 응답으로 잘 왔습니다.{ "name": "my-source-connect2", "config": { "connector.class": "io.confluent.connect.jdbc.JdbcSourceConnector", "connection.url": "jdbc:mariadb://localhost:3306/mydb", "connection.user": "root", "connection.password": "지정한 password", "mode": "incrementing", "incrementing.column.name": "id", "table.whitelist": "users", "topic.prefix": "my_topic_", "tasks.max": "1", "name": "my-source-connect2" }, "tasks": [], "type": "source" }127.0.0.1:8083/connectors/my-source-connect/status를 보니{ "name": "my-source-connect", "connector": { "state": "FAILED", "worker_id": "192.168.200.174:8083", "trace": "org.apache.kafka.connect.errors.ConnectException: java.sql.SQLException: No suitable driver found for jdbc:mysql://localhost:3306/mydb\n\tat io.confluent.connect.jdbc.util.CachedConnectionProvider.getConnection(CachedConnectionProvider.java:62)\n\tat io.confluent.connect.jdbc.JdbcSourceConnector.start(JdbcSourceConnector.java:95)\n\tat org.apache.kafka.connect.runtime.WorkerConnector.doStart(WorkerConnector.java:190)\n\tat org.apache.kafka.connect.runtime.WorkerConnector.start(WorkerConnector.java:215)\n\tat org.apache.kafka.connect.runtime.WorkerConnector.doTransitionTo(WorkerConnector.java:360)\n\tat org.apache.kafka.connect.runtime.WorkerConnector.doTransitionTo(WorkerConnector.java:343)\n\tat org.apache.kafka.connect.runtime.WorkerConnector.doRun(WorkerConnector.java:143)\n\tat org.apache.kafka.connect.runtime.WorkerConnector.run(WorkerConnector.java:121)\n\tat org.apache.kafka.connect.runtime.isolation.Plugins.lambda$withClassLoader$1(Plugins.java:181)\n\tat java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539)\n\tat java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)\n\tat java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)\n\tat java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)\n\tat java.base/java.lang.Thread.run(Thread.java:833)\nCaused by: java.sql.SQLException: No suitable driver found for jdbc:mysql://localhost:3306/mydb\n\tat java.sql/java.sql.DriverManager.getConnection(DriverManager.java:706)\n\tat java.sql/java.sql.DriverManager.getConnection(DriverManager.java:190)\n\tat io.confluent.connect.jdbc.dialect.GenericDatabaseDialect.getConnection(GenericDatabaseDialect.java:250)\n\tat io.confluent.connect.jdbc.util.CachedConnectionProvider.newConnection(CachedConnectionProvider.java:84)\n\tat io.confluent.connect.jdbc.util.CachedConnectionProvider.getConnection(CachedConnectionProvider.java:54)\n\t... 13 more\n" }, "tasks": [], "type": "source" }터미널에서 확인해보니 127.0.0.1:8083/connectors로 POST 요청으로 보낼 때[2023-08-08 19:11:24,848] INFO JdbcSourceConnectorConfig values: batch.max.rows = 100 catalog.pattern = null connection.attempts = 3 connection.backoff.ms = 10000 connection.password = [hidden] connection.url = jdbc:mariadb://localhost:3306/mydb connection.user = root db.timezone = UTC dialect.name = incrementing.column.name = id mode = incrementing numeric.mapping = null numeric.precision.mapping = false poll.interval.ms = 5000 query = query.retry.attempts = -1 query.suffix = quote.sql.identifiers = ALWAYS schema.pattern = null table.blacklist = [] table.monitoring.startup.polling.limit.ms = 10000 table.poll.interval.ms = 60000 table.types = [TABLE] table.whitelist = [users] timestamp.column.name = [] timestamp.delay.interval.ms = 0 timestamp.granularity = connect_logical timestamp.initial = null topic.prefix = my_topic_ transaction.isolation.mode = DEFAULT validate.non.null = true (io.confluent.connect.jdbc.source.JdbcSourceConnectorConfig:376) [2023-08-08 19:11:24,850] INFO AbstractConfig values: (org.apache.kafka.common.config.AbstractConfig:376) [2023-08-08 19:11:24,856] INFO [Worker clientId=connect-1, groupId=connect-cluster] Connector my-source-connect2 config updated (org.apache.kafka.connect.runtime.distributed.DistributedHerder:2092) [2023-08-08 19:11:24,858] INFO [Worker clientId=connect-1, groupId=connect-cluster] Rebalance started (org.apache.kafka.connect.runtime.distributed.WorkerCoordinator:231) [2023-08-08 19:11:24,858] INFO [Worker clientId=connect-1, groupId=connect-cluster] (Re-)joining group (org.apache.kafka.connect.runtime.distributed.WorkerCoordinator:566) [2023-08-08 19:11:24,860] INFO 127.0.0.1 - - [08/8월/2023:10:11:24 +0000] "POST /connectors HTTP/1.1" 201 400 "-" "PostmanRuntime/7.32.3" 18 (org.apache.kafka.connect.runtime.rest.RestServer:62) [2023-08-08 19:11:24,861] INFO [Worker clientId=connect-1, groupId=connect-cluster] Successfully joined group with generation Generation{generationId=4, memberId='connect-1-a7b22fdb-774a-479a-9618-b4e9504e4e95', protocol='sessioned'} (org.apache.kafka.connect.runtime.distributed.WorkerCoordinator:627) [2023-08-08 19:11:24,866] INFO [Worker clientId=connect-1, groupId=connect-cluster] Successfully synced group in generation Generation{generationId=4, memberId='connect-1-a7b22fdb-774a-479a-9618-b4e9504e4e95', protocol='sessioned'} (org.apache.kafka.connect.runtime.distributed.WorkerCoordinator:802) [2023-08-08 19:11:24,866] INFO [Worker clientId=connect-1, groupId=connect-cluster] Joined group at generation 4 with protocol version 2 and got assignment: Assignment{error=0, leader='connect-1-a7b22fdb-774a-479a-9618-b4e9504e4e95', leaderUrl='http://192.168.200.174:8083/', offset=5, connectorIds=[my-source-connect2, my-source-connect1, my-source-connect], taskIds=[], revokedConnectorIds=[], revokedTaskIds=[], delay=0} with rebalance delay: 0 (org.apache.kafka.connect.runtime.distributed.DistributedHerder:2282) [2023-08-08 19:11:24,866] INFO [Worker clientId=connect-1, groupId=connect-cluster] Starting connectors and tasks using config offset 5 (org.apache.kafka.connect.runtime.distributed.DistributedHerder:1676) [2023-08-08 19:11:24,867] INFO [Worker clientId=connect-1, groupId=connect-cluster] Starting connector my-source-connect2 (org.apache.kafka.connect.runtime.distributed.DistributedHerder:1793) [2023-08-08 19:11:24,867] INFO [my-source-connect2|worker] Creating connector my-source-connect2 of type io.confluent.connect.jdbc.JdbcSourceConnector (org.apache.kafka.connect.runtime.Worker:293) [2023-08-08 19:11:24,867] INFO [my-source-connect2|worker] SourceConnectorConfig values: config.action.reload = restart connector.class = io.confluent.connect.jdbc.JdbcSourceConnector errors.log.enable = false errors.log.include.messages = false errors.retry.delay.max.ms = 60000 errors.retry.timeout = 0 errors.tolerance = none exactly.once.support = requested header.converter = null key.converter = null name = my-source-connect2 offsets.storage.topic = null predicates = [] tasks.max = 1 topic.creation.groups = [] transaction.boundary = poll transaction.boundary.interval.ms = null transforms = [] value.converter = null (org.apache.kafka.connect.runtime.SourceConnectorConfig:376) [2023-08-08 19:11:24,867] INFO [my-source-connect2|worker] EnrichedConnectorConfig values: config.action.reload = restart connector.class = io.confluent.connect.jdbc.JdbcSourceConnector errors.log.enable = false errors.log.include.messages = false errors.retry.delay.max.ms = 60000 errors.retry.timeout = 0 errors.tolerance = none exactly.once.support = requested header.converter = null key.converter = null name = my-source-connect2 offsets.storage.topic = null predicates = [] tasks.max = 1 topic.creation.groups = [] transaction.boundary = poll transaction.boundary.interval.ms = null transforms = [] value.converter = null (org.apache.kafka.connect.runtime.ConnectorConfig$EnrichedConnectorConfig:376) [2023-08-08 19:11:24,868] INFO [my-source-connect2|worker] Instantiated connector my-source-connect2 with version 10.7.3 of type class io.confluent.connect.jdbc.JdbcSourceConnector (org.apache.kafka.connect.runtime.Worker:315) [2023-08-08 19:11:24,868] INFO [my-source-connect2|worker] Finished creating connector my-source-connect2 (org.apache.kafka.connect.runtime.Worker:336) [2023-08-08 19:11:24,868] INFO [Worker clientId=connect-1, groupId=connect-cluster] Finished starting connectors and tasks (org.apache.kafka.connect.runtime.distributed.DistributedHerder:1704) [2023-08-08 19:11:24,868] INFO [my-source-connect2|worker] Starting JDBC Source Connector (io.confluent.connect.jdbc.JdbcSourceConnector:71) [2023-08-08 19:11:24,869] INFO [my-source-connect2|worker] JdbcSourceConnectorConfig values: batch.max.rows = 100 catalog.pattern = null connection.attempts = 3 connection.backoff.ms = 10000 connection.password = [hidden] connection.url = jdbc:mariadb://localhost:3306/mydb connection.user = root db.timezone = UTC dialect.name = incrementing.column.name = id mode = incrementing numeric.mapping = null numeric.precision.mapping = false poll.interval.ms = 5000 query = query.retry.attempts = -1 query.suffix = quote.sql.identifiers = ALWAYS schema.pattern = null table.blacklist = [] table.monitoring.startup.polling.limit.ms = 10000 table.poll.interval.ms = 60000 table.types = [TABLE] table.whitelist = [users] timestamp.column.name = [] timestamp.delay.interval.ms = 0 timestamp.granularity = connect_logical timestamp.initial = null topic.prefix = my_topic_ transaction.isolation.mode = DEFAULT validate.non.null = true (io.confluent.connect.jdbc.source.JdbcSourceConnectorConfig:376) [2023-08-08 19:11:24,869] INFO [my-source-connect2|worker] Validating JDBC URL. (io.confluent.connect.jdbc.dialect.DatabaseDialects:171) [2023-08-08 19:11:24,869] INFO [my-source-connect2|worker] Validated JDBC URL. (io.confluent.connect.jdbc.dialect.DatabaseDialects:174) [2023-08-08 19:11:24,869] INFO [my-source-connect2|worker] Validating JDBC URL. (io.confluent.connect.jdbc.dialect.DatabaseDialects:171) [2023-08-08 19:11:24,869] INFO [my-source-connect2|worker] Validated JDBC URL. (io.confluent.connect.jdbc.dialect.DatabaseDialects:174) [2023-08-08 19:11:24,869] INFO [my-source-connect2|worker] Initial connection attempt with the database. (io.confluent.connect.jdbc.JdbcSourceConnector:94) [2023-08-08 19:11:24,871] INFO [my-source-connect2|worker] Unable to connect to database on attempt 1/3. Will retry in 10000 ms. (io.confluent.connect.jdbc.util.CachedConnectionProvider:90) java.sql.SQLException: No suitable driver found for jdbc:mariadb://localhost:3306/mydb at java.sql/java.sql.DriverManager.getConnection(DriverManager.java:706) at java.sql/java.sql.DriverManager.getConnection(DriverManager.java:190) at io.confluent.connect.jdbc.dialect.GenericDatabaseDialect.getConnection(GenericDatabaseDialect.java:250) at io.confluent.connect.jdbc.util.CachedConnectionProvider.newConnection(CachedConnectionProvider.java:84) at io.confluent.connect.jdbc.util.CachedConnectionProvider.getConnection(CachedConnectionProvider.java:54) at io.confluent.connect.jdbc.JdbcSourceConnector.start(JdbcSourceConnector.java:95) at org.apache.kafka.connect.runtime.WorkerConnector.doStart(WorkerConnector.java:190) at org.apache.kafka.connect.runtime.WorkerConnector.start(WorkerConnector.java:215) at org.apache.kafka.connect.runtime.WorkerConnector.doTransitionTo(WorkerConnector.java:360) at org.apache.kafka.connect.runtime.WorkerConnector.doTransitionTo(WorkerConnector.java:343) at org.apache.kafka.connect.runtime.WorkerConnector.doRun(WorkerConnector.java:143) at org.apache.kafka.connect.runtime.WorkerConnector.run(WorkerConnector.java:121) at org.apache.kafka.connect.runtime.isolation.Plugins.lambda$withClassLoader$1(Plugins.java:181) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:833) [2023-08-08 19:11:34,877] INFO [my-source-connect2|worker] Unable to connect to database on attempt 2/3. Will retry in 10000 ms. (io.confluent.connect.jdbc.util.CachedConnectionProvider:90) java.sql.SQLException: No suitable driver found for jdbc:mariadb://localhost:3306/mydb at java.sql/java.sql.DriverManager.getConnection(DriverManager.java:706) at java.sql/java.sql.DriverManager.getConnection(DriverManager.java:190) at io.confluent.connect.jdbc.dialect.GenericDatabaseDialect.getConnection(GenericDatabaseDialect.java:250) at io.confluent.connect.jdbc.util.CachedConnectionProvider.newConnection(CachedConnectionProvider.java:84) at io.confluent.connect.jdbc.util.CachedConnectionProvider.getConnection(CachedConnectionProvider.java:54) at io.confluent.connect.jdbc.JdbcSourceConnector.start(JdbcSourceConnector.java:95) at org.apache.kafka.connect.runtime.WorkerConnector.doStart(WorkerConnector.java:190) at org.apache.kafka.connect.runtime.WorkerConnector.start(WorkerConnector.java:215) at org.apache.kafka.connect.runtime.WorkerConnector.doTransitionTo(WorkerConnector.java:360) at org.apache.kafka.connect.runtime.WorkerConnector.doTransitionTo(WorkerConnector.java:343) at org.apache.kafka.connect.runtime.WorkerConnector.doRun(WorkerConnector.java:143) at org.apache.kafka.connect.runtime.WorkerConnector.run(WorkerConnector.java:121) at org.apache.kafka.connect.runtime.isolation.Plugins.lambda$withClassLoader$1(Plugins.java:181) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:833)으로 발생합니다. 에러를 보니 java.sql.SQLException: No suitable driver found for jdbc:mariadb://localhost:3306/mydbKafka Connect 런타임에서 MariaDB의 JDBC 드라이버를 찾지 못한거 같았습니다.~/confluent-7.4.0/etc/kafka/connectdistributed.properties 경로에plugin.path=/Users/ryu/kafka/confluentinc-kafka-connect-jdbc-10.7.3/lib잘 지정해준거 같았고 문제가 예상되는 부분은 현재 gradle을 사용해서 예제를 따라하고 있었습니다. ...Maven Local Repository에 라이브러리 배포하는 식으로해서plugins { id 'java-library' id 'maven-publish' id 'org.springframework.boot' version '2.7.14' id 'io.spring.dependency-management' version '1.0.15.RELEASE' } group = 'com.spring' version = '0.0.1-SNAPSHOT' java { sourceCompatibility = '17' } configurations { compileOnly { extendsFrom annotationProcessor } } repositories { mavenCentral() } ext { set('springCloudVersion', "2021.0.8") } dependencies { implementation 'org.springframework.boot:spring-boot-starter-data-jpa' implementation 'org.springframework.boot:spring-boot-starter-web' implementation 'org.springframework.cloud:spring-cloud-starter-netflix-eureka-client' implementation 'org.modelmapper:modelmapper:2.4.5' implementation 'org.mariadb.jdbc:mariadb-java-client:2.7.2' compileOnly 'org.projectlombok:lombok' developmentOnly 'org.springframework.boot:spring-boot-devtools' runtimeOnly 'com.h2database:h2:1.3.176' annotationProcessor 'org.projectlombok:lombok' testImplementation 'org.springframework.boot:spring-boot-starter-test' } dependencyManagement { imports { mavenBom "org.springframework.cloud:spring-cloud-dependencies:${springCloudVersion}" } } tasks.named('test') { useJUnitPlatform() } publishing { publications { maven(MavenPublication) { groupId = 'org.mariadb.jdbc' // groupId artifactId = 'mariadb-java-client' // artifactId version = '2.7.2' // version from components.java } } }publishMavenPublicationToMavenLocal 을 통해서 배포해버리고...maven의 기본 repository인 .m2에서 확인했을 때.jar 파일이 mariadb-java-client-3.1.4-plain.jar 밖에 없어 사용했는데 혹시 gradle을 이용하면서 해결할 수 있는 방법이 있을까요?  

안녕하세요 이 강의를 본격적으로 듣기 전에 자바강의를 충분히 이해하고 싶습니다 그래서 이것이 자바다 와 자바의 정석중에 고민이 됩니다 자바의 정석은 서점에 가도 밀봉되어있어 책 내용을 알수가없어서 고민이됩니다. 각자의 장단점이 뚜렷하겠지만 혹시 선생님이 추천해주실만한 자바 강의가 있을까요? 그리고 자바를 공부하는데 어느 부분이 제일 필요한지도 궁금합니다

컨트롤러에서int i = menuSvc.doUpdate(coffeeMenu);앞에 int i 변수선언을 하는 이유가 있을까요??강의 내용중 Mybatis 가 숫자를 반환해준다고 하신거같은데 살짝 이해가 안가서요  혹시 제가 국비 다니고있습니다.프로젝트 진행중인데 프론트 쪽이 리엑트 쓰는데JSON형식으로 넘겨줘야한다고 하더라고요RestComtroller 또는 Controller 클래스 레벨에 선언후메소드에서 Responsbody 선언하고 똑같이 리턴은String 으로 해서 View 페이지에 보내면될까요? 제가 다니는 학원에서는 리엑트를 안배우고 vue2 를 배워서 이부분이 너무 무지해서 좀 막막합니다 

인증 거부 처리 -8:42 ) LoginController 에서 Account account = (Account) authentication.getPrincipal();이 가능 한 이유가 저희가 인증 객체를CustomAuthenticationProvider코드에서 UsernamePasswordAuthenticationToken authenticationToken = new UsernamePasswordAuthenticationToken(accountContext.getAccount(), null, accountContext.getAuthorities()); 로 토큰을 만들어서 스프링이 내부적으로 SecurityContext 안에 accountContext.getAccount(); (인증객체) 을 저장했기 때문에 가능하다고 이해했는데 맞나요 ?