안녕하세요,김영한 강사님 강의 잘 듣고 있는 전진호 학생입니다.첫번째 캡쳐사진은 제가 강의를 들으면서 적었던 코드에서 상품 주문을 클릭하고, 아무 것도 적지 않았을 때 나오는 화면입니다.두번째 캡쳐사진은 자료 소스 코드에서 동일한 작동을 했을 때 나오는 소스코드입니다. 똑같은 status=400, Bad Request인데 첫번째만 왜 에러 로그가 길게 나오는 걸까요?답변해주시면 감사하겠습니다. *) zip 파일을 export 했는데 어떻게 올려야 할지 잘 모르겠어서 추가적으로 필요하시다면 보내드리겠습니다.    

강의 내용대로 진행하였는데http://localhost:8000/user-service/actuator/prometheushttp://localhost:8000/order-service/actuator/prometheus둘다 아래 이미지와같은 에러가 발생합니다  apigateway application.yml 설정- id: user-service uri: lb://USER-SERVICE predicates: - Path=/user-service/actuator/** - Method=GET,POST filters: - RemoveRequestHeader=Cookie - RewritePath=/user-service/(?<segment>.*), /$\{segment} - id: order-service uri: lb://ORDER-SERVICE predicates: - Path=/order-service/actuator/** - Method=GET filters: - RemoveRequestHeader=Cookie - RewritePath=/order-service/(?<segment>.*), /$\{segment}  프로메테우스.yml 설정static_configs: - targets: ["localhost:9090"] - job_name: 'user-service' scrape_interval: 15s metrics_path: '/user-service/actuator/prometheus' static_configs: - targets: ['localhost:8000'] - job_name: 'order-service' scrape_interval: 15s metrics_path: '/order-service/actuator/prometheus' static_configs: - targets: ['localhost:8000'] - job_name: 'apigateway-service' scrape_interval: 15s metrics_path: '/actuator/prometheus' static_configs: - targets: ['localhost:8000'] apigateway 의 AuthorizationHeaderFilter.java// 절차 // login -> token반환받음 -> client에서 apigateway로 정보 요청 시 (토큰정보를 가지고 요청함) -> 서버에서는 토큰정보 검증 (header 안에 토큰이 포함됨) 38줄 @Override public GatewayFilter apply(Config config) { return ((exchange, chain) -> { ServerHttpRequest request = exchange.getRequest(); if(!request.getHeaders().containsKey(HttpHeaders.AUTHORIZATION)) { return onError(exchange, "no authorization header", HttpStatus.UNAUTHORIZED); } String authorizationHeader = request.getHeaders().get(HttpHeaders.AUTHORIZATION).get(0); // 반환값은 list배열이기에 0 String jwt = authorizationHeader.replace("Bearer", ""); if(!isJwtValid(jwt)) { return onError(exchange, "JWT token is not valid", HttpStatus.UNAUTHORIZED); } return chain.filter(exchange); }); }여기서 지속적으로 아래 오류가 발생중입니다2023-09-10 01:15:35.241 INFO 31372 --- [tor-http-nio-10] c.e.a.filter.GlobalFilter : Global Filter baseMessage: Spring Cloud Gateway Global Filter2023-09-10 01:15:35.241 INFO 31372 --- [tor-http-nio-10] c.e.a.filter.GlobalFilter : Global Filter Start: request id -> a5f590c1-10982023-09-10 01:15:35.270 INFO 31372 --- [tor-http-nio-10] c.e.a.filter.GlobalFilter : Global Filter End: response code -> 404 NOT_FOUND2023-09-10 01:15:35.528 INFO 31372 --- [tor-http-nio-12] c.e.a.filter.GlobalFilter : Global Filter baseMessage: Spring Cloud Gateway Global Filter2023-09-10 01:15:35.528 INFO 31372 --- [tor-http-nio-12] c.e.a.filter.GlobalFilter : Global Filter Start: request id -> d5aec101-10992023-09-10 01:15:35.528 ERROR 31372 --- [tor-http-nio-12] c.e.a.filter.AuthorizationHeaderFilter : no authorization header2023-09-10 01:15:35.528 INFO 31372 --- [tor-http-nio-12] c.e.a.filter.GlobalFilter : Global Filter End: response code -> 401 UNAUTHORIZED 이 필터관련 수정한건 없는것으로 기억하는데 제가 놓친게있을까요답답하네요 ㅠ

build.gradle에서 useJUnitPlatform()부분에 No candidates found for method call useJUnitPlatform. 에러가 뜨는 이유가 먼가요? 스프링부트 3.1버전이라 Jdk 는 17로 맞춰놓은 상태입니다.

 OpenJDK 64-Bit Server VM warning: Sharing is only supported for boot loader classes because bootstrap classpath has been appended2023-09-09T20:53:34.199+09:00 INFO 2419 --- [ main] p6spy : #1694260414199 | took 0ms | rollback | connection 2| url jdbc:h2:tcp://localhost/~/datajpa;2023-09-09T20:53:34.201+09:00 WARN 2419 --- [ main] o.s.test.context.TestContextManager : Caught exception while invoking 'afterTestMethod' callback on TestExecutionListener [org.springframework.test.context.transaction.TransactionalTestExecutionListener] for test method [public void study.datajpa.entity.MemberTest.jpaEventBaseEntity() throws java.lang.Exception] and test instance [study.datajpa.entity.MemberTest@7d9587b3]org.springframework.transaction.UnexpectedRollbackException: Transaction silently rolled back because it has been marked as rollback-onlyat org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit(AbstractPlatformTransactionManager.java:752) ~[spring-tx-6.0.11.jar:6.0.11]at org.springframework.transaction.support.AbstractPlatformTransactionManager.commit(AbstractPlatformTransactionManager.java:711) ~[spring-tx-6.0.11.jar:6.0.11]at org.springframework.test.context.transaction.TransactionContext.endTransaction(TransactionContext.java:135) ~[spring-test-6.0.11.jar:6.0.11]at org.springframework.test.context.transaction.TransactionalTestExecutionListener.afterTestMethod(TransactionalTestExecutionListener.java:259) ~[spring-test-6.0.11.jar:6.0.11]at org.springframework.test.context.TestContextManager.afterTestMethod(TestContextManager.java:440) ~[spring-test-6.0.11.jar:6.0.11]at org.springframework.test.context.junit.jupiter.SpringExtension.afterEach(SpringExtension.java:206) ~[spring-test-6.0.11.jar:6.0.11]at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeAfterEachCallbacks$12(TestMethodTestDescriptor.java:260) ~[junit-jupiter-engine-5.9.3.jar:5.9.3]at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeAllAfterMethodsOrCallbacks$13(TestMethodTestDescriptor.java:276) ~[junit-jupiter-engine-5.9.3.jar:5.9.3]at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.9.3.jar:1.9.3]at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeAllAfterMethodsOrCallbacks$14(TestMethodTestDescriptor.java:276) ~[junit-jupiter-engine-5.9.3.jar:5.9.3]at java.base/java.util.ArrayList.forEach(ArrayList.java:1511) ~[na:na]at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.invokeAllAfterMethodsOrCallbacks(TestMethodTestDescriptor.java:275) ~[junit-jupiter-engine-5.9.3.jar:5.9.3]at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.invokeAfterEachCallbacks(TestMethodTestDescriptor.java:259) ~[junit-jupiter-engine-5.9.3.jar:5.9.3]at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:144) ~[junit-jupiter-engine-5.9.3.jar:5.9.3]at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:68) ~[junit-jupiter-engine-5.9.3.jar:5.9.3]at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:151) ~[junit-platform-engine-1.9.3.jar:1.9.3]at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.9.3.jar:1.9.3]at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141) ~[junit-platform-engine-1.9.3.jar:1.9.3]at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137) ~[junit-platform-engine-1.9.3.jar:1.9.3]at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139) ~[junit-platform-engine-1.9.3.jar:1.9.3]at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.9.3.jar:1.9.3]at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138) ~[junit-platform-engine-1.9.3.jar:1.9.3]at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95) ~[junit-platform-engine-1.9.3.jar:1.9.3]at java.base/java.util.ArrayList.forEach(ArrayList.java:1511) ~[na:na]at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41) ~[junit-platform-engine-1.9.3.jar:1.9.3]at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155) ~[junit-platform-engine-1.9.3.jar:1.9.3]at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.9.3.jar:1.9.3]at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141) ~[junit-platform-engine-1.9.3.jar:1.9.3]at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137) ~[junit-platform-engine-1.9.3.jar:1.9.3]at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139) ~[junit-platform-engine-1.9.3.jar:1.9.3]at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.9.3.jar:1.9.3]at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138) ~[junit-platform-engine-1.9.3.jar:1.9.3]at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95) ~[junit-platform-engine-1.9.3.jar:1.9.3]at java.base/java.util.ArrayList.forEach(ArrayList.java:1511) ~[na:na]at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41) ~[junit-platform-engine-1.9.3.jar:1.9.3]at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155) ~[junit-platform-engine-1.9.3.jar:1.9.3]at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.9.3.jar:1.9.3]at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141) ~[junit-platform-engine-1.9.3.jar:1.9.3]at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137) ~[junit-platform-engine-1.9.3.jar:1.9.3]at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139) ~[junit-platform-engine-1.9.3.jar:1.9.3]at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.9.3.jar:1.9.3]at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138) ~[junit-platform-engine-1.9.3.jar:1.9.3]at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95) ~[junit-platform-engine-1.9.3.jar:1.9.3]at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.submit(SameThreadHierarchicalTestExecutorService.java:35) ~[junit-platform-engine-1.9.3.jar:1.9.3]at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:57) ~[junit-platform-engine-1.9.3.jar:1.9.3]at org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:54) ~[junit-platform-engine-1.9.3.jar:1.9.3]at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:147) ~[junit-platform-launcher-1.9.3.jar:1.9.3]at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:127) ~[junit-platform-launcher-1.9.3.jar:1.9.3]at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:90) ~[junit-platform-launcher-1.9.3.jar:1.9.3]at org.junit.platform.launcher.core.EngineExecutionOrchestrator.lambda$execute$0(EngineExecutionOrchestrator.java:55) ~[junit-platform-launcher-1.9.3.jar:1.9.3]at org.junit.platform.launcher.core.EngineExecutionOrchestrator.withInterceptedStreams(EngineExecutionOrchestrator.java:102) ~[junit-platform-launcher-1.9.3.jar:1.9.3]at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:54) ~[junit-platform-launcher-1.9.3.jar:1.9.3]at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:114) ~[junit-platform-launcher-1.9.3.jar:1.9.3]at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:86) ~[junit-platform-launcher-1.9.3.jar:1.9.3]at org.junit.platform.launcher.core.DefaultLauncherSession$DelegatingLauncher.execute(DefaultLauncherSession.java:86) ~[junit-platform-launcher-1.9.3.jar:1.9.3]at org.junit.platform.launcher.core.SessionPerRequestLauncher.execute(SessionPerRequestLauncher.java:53) ~[junit-platform-launcher-1.9.3.jar:1.9.3]at com.intellij.junit5.JUnit5IdeaTestRunner.startRunnerWithArgs(JUnit5IdeaTestRunner.java:57) ~[junit5-rt.jar:na]at com.intellij.rt.junit.IdeaTestRunner$Repeater$1.execute(IdeaTestRunner.java:38) ~[junit-rt.jar:na]at com.intellij.rt.execution.junit.TestsRepeater.repeat(TestsRepeater.java:11) ~[idea_rt.jar:na]at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:35) ~[junit-rt.jar:na]at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:232) ~[junit-rt.jar:na]at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:55) ~[junit-rt.jar:na]java.lang.ClassCastException: Cannot cast java.lang.String to java.time.LocalDateTimeat java.base/java.lang.Class.cast(Class.java:3889)at study.datajpa.entity.Member_Accessor_i3e07h.setProperty(Unknown Source)at org.springframework.data.mapping.model.InstantiationAwarePropertyAccessor.setProperty(InstantiationAwarePropertyAccessor.java:81)at org.springframework.data.mapping.model.SimplePersistentPropertyPathAccessor.setProperty(SimplePersistentPropertyPathAccessor.java:108)at org.springframework.data.mapping.model.SimplePersistentPropertyPathAccessor.setProperty(SimplePersistentPropertyPathAccessor.java:127)at org.springframework.data.auditing.MappingAuditableBeanWrapperFactory$MappingMetadataAuditableBeanWrapper.lambda$setProperty$0(MappingAuditableBeanWrapperFactory.java:231)at java.base/java.lang.Iterable.forEach(Iterable.java:75)at org.springframework.data.auditing.MappingAuditableBeanWrapperFactory$MappingMetadataAuditableBeanWrapper.setProperty(MappingAuditableBeanWrapperFactory.java:231)at org.springframework.data.auditing.MappingAuditableBeanWrapperFactory$MappingMetadataAuditableBeanWrapper.setLastModifiedBy(MappingAuditableBeanWrapperFactory.java:206)at org.springframework.data.auditing.AuditingHandlerSupport.touchAuditor(AuditingHandlerSupport.java:173)at org.springframework.data.auditing.AuditingHandlerSupport.lambda$touch$0(AuditingHandlerSupport.java:136)at java.base/java.util.Optional.map(Optional.java:260)at org.springframework.data.auditing.AuditingHandlerSupport.touch(AuditingHandlerSupport.java:134)at org.springframework.data.auditing.AuditingHandlerSupport.markCreated(AuditingHandlerSupport.java:114)at org.springframework.data.auditing.AuditingHandler.markCreated(AuditingHandler.java:86)at org.springframework.data.jpa.domain.support.AuditingEntityListener.touchForCreate(AuditingEntityListener.java:92)at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)at java.base/java.lang.reflect.Method.invoke(Method.java:568)at org.hibernate.jpa.event.internal.ListenerCallback.performCallback(ListenerCallback.java:55)at org.hibernate.jpa.event.internal.CallbackRegistryImpl.callback(CallbackRegistryImpl.java:113)at org.hibernate.jpa.event.internal.CallbackRegistryImpl.preCreate(CallbackRegistryImpl.java:62)at org.hibernate.event.internal.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:113)at org.hibernate.event.internal.DefaultPersistEventListener.entityIsTransient(DefaultPersistEventListener.java:175)at org.hibernate.event.internal.DefaultPersistEventListener.persist(DefaultPersistEventListener.java:93)at org.hibernate.event.internal.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:77)at org.hibernate.event.internal.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:54)at org.hibernate.event.service.internal.EventListenerGroupImpl.fireEventOnEachListener(EventListenerGroupImpl.java:127)at org.hibernate.internal.SessionImpl.firePersist(SessionImpl.java:755)at org.hibernate.internal.SessionImpl.persist(SessionImpl.java:739)at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)at java.base/java.lang.reflect.Method.invoke(Method.java:568)at org.springframework.orm.jpa.SharedEntityManagerCreator$SharedEntityManagerInvocationHandler.invoke(SharedEntityManagerCreator.java:311)at jdk.proxy2/jdk.proxy2.$Proxy132.persist(Unknown Source)at org.springframework.data.jpa.repository.support.SimpleJpaRepository.save(SimpleJpaRepository.java:617)at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)at java.base/java.lang.reflect.Method.invoke(Method.java:568)at org.springframework.data.repository.core.support.RepositoryMethodInvoker$RepositoryFragmentMethodInvoker.lambda$new$0(RepositoryMethodInvoker.java:288)at org.springframework.data.repository.core.support.RepositoryMethodInvoker.doInvoke(RepositoryMethodInvoker.java:136)at org.springframework.data.repository.core.support.RepositoryMethodInvoker.invoke(RepositoryMethodInvoker.java:120)at org.springframework.data.repository.core.support.RepositoryComposition$RepositoryFragments.invoke(RepositoryComposition.java:516)at org.springframework.data.repository.core.support.RepositoryComposition.invoke(RepositoryComposition.java:285)at org.springframework.data.repository.core.support.RepositoryFactorySupport$ImplementationMethodExecutionInterceptor.invoke(RepositoryFactorySupport.java:628)at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:184)at org.springframework.data.repository.core.support.QueryExecutorMethodInterceptor.doInvoke(QueryExecutorMethodInterceptor.java:168)at org.springframework.data.repository.core.support.QueryExecutorMethodInterceptor.invoke(QueryExecutorMethodInterceptor.java:143)at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:184)at org.springframework.data.projection.DefaultMethodInvokingMethodInterceptor.invoke(DefaultMethodInvokingMethodInterceptor.java:72)at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:184)at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:123)at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:391)at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:119)at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:184)at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:137)at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:184)at org.springframework.data.jpa.repository.support.CrudMethodMetadataPostProcessor$CrudMethodMetadataPopulatingMethodInterceptor.invoke(CrudMethodMetadataPostProcessor.java:164)at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:184)at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:97)at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:184)at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:244)at jdk.proxy2/jdk.proxy2.$Proxy145.save(Unknown Source)at study.datajpa.entity.MemberTest.jpaEventBaseEntity(MemberTest.java:30)at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)at java.base/java.lang.reflect.Method.invoke(Method.java:568)at org.junit.platform.commons.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:727)at org.junit.jupiter.engine.execution.MethodInvocation.proceed(MethodInvocation.java:60)at org.junit.jupiter.engine.execution.InvocationInterceptorChain$ValidatingInvocation.proceed(InvocationInterceptorChain.java:131)at org.junit.jupiter.engine.extension.TimeoutExtension.intercept(TimeoutExtension.java:156)at org.junit.jupiter.engine.extension.TimeoutExtension.interceptTestableMethod(TimeoutExtension.java:147)at org.junit.jupiter.engine.extension.TimeoutExtension.interceptTestMethod(TimeoutExtension.java:86)at org.junit.jupiter.engine.execution.InterceptingExecutableInvoker$ReflectiveInterceptorCall.lambda$ofVoidMethod$0(InterceptingExecutableInvoker.java:103)at org.junit.jupiter.engine.execution.InterceptingExecutableInvoker.lambda$invoke$0(InterceptingExecutableInvoker.java:93)at org.junit.jupiter.engine.execution.InvocationInterceptorChain$InterceptedInvocation.proceed(InvocationInterceptorChain.java:106)at org.junit.jupiter.engine.execution.InvocationInterceptorChain.proceed(InvocationInterceptorChain.java:64)at org.junit.jupiter.engine.execution.InvocationInterceptorChain.chainAndInvoke(InvocationInterceptorChain.java:45)at org.junit.jupiter.engine.execution.InvocationInterceptorChain.invoke(InvocationInterceptorChain.java:37)at org.junit.jupiter.engine.execution.InterceptingExecutableInvoker.invoke(InterceptingExecutableInvoker.java:92)at org.junit.jupiter.engine.execution.InterceptingExecutableInvoker.invoke(InterceptingExecutableInvoker.java:86)at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeTestMethod$7(TestMethodTestDescriptor.java:217)at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.invokeTestMethod(TestMethodTestDescriptor.java:213)at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:138)at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:68)at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:151)at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141)at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139)at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138)at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95)at java.base/java.util.ArrayList.forEach(ArrayList.java:1511)at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41)at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155)at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141)at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139)at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138)at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95)at java.base/java.util.ArrayList.forEach(ArrayList.java:1511)at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41)at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155)at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141)at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139)at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138)at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95)at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.submit(SameThreadHierarchicalTestExecutorService.java:35)at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:57)at org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:54)at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:147)at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:127)at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:90)at org.junit.platform.launcher.core.EngineExecutionOrchestrator.lambda$execute$0(EngineExecutionOrchestrator.java:55)at org.junit.platform.launcher.core.EngineExecutionOrchestrator.withInterceptedStreams(EngineExecutionOrchestrator.java:102)at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:54)at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:114)at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:86)at org.junit.platform.launcher.core.DefaultLauncherSession$DelegatingLauncher.execute(DefaultLauncherSession.java:86)at org.junit.platform.launcher.core.SessionPerRequestLauncher.execute(SessionPerRequestLauncher.java:53)at com.intellij.junit5.JUnit5IdeaTestRunner.startRunnerWithArgs(JUnit5IdeaTestRunner.java:57)at com.intellij.rt.junit.IdeaTestRunner$Repeater$1.execute(IdeaTestRunner.java:38)at com.intellij.rt.execution.junit.TestsRepeater.repeat(TestsRepeater.java:11)at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:35)at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:232)at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:55)Suppressed: org.springframework.transaction.UnexpectedRollbackException: Transaction silently rolled back because it has been marked as rollback-onlyat org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit(AbstractPlatformTransactionManager.java:752)at org.springframework.transaction.support.AbstractPlatformTransactionManager.commit(AbstractPlatformTransactionManager.java:711)at org.springframework.test.context.transaction.TransactionContext.endTransaction(TransactionContext.java:135)at org.springframework.test.context.transaction.TransactionalTestExecutionListener.afterTestMethod(TransactionalTestExecutionListener.java:259)at org.springframework.test.context.TestContextManager.afterTestMethod(TestContextManager.java:440)at org.springframework.test.context.junit.jupiter.SpringExtension.afterEach(SpringExtension.java:206)at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeAfterEachCallbacks$12(TestMethodTestDescriptor.java:260)at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeAllAfterMethodsOrCallbacks$13(TestMethodTestDescriptor.java:276)at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeAllAfterMethodsOrCallbacks$14(TestMethodTestDescriptor.java:276)at java.base/java.util.ArrayList.forEach(ArrayList.java:1511)at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.invokeAllAfterMethodsOrCallbacks(TestMethodTestDescriptor.java:275)at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.invokeAfterEachCallbacks(TestMethodTestDescriptor.java:259)at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:144)... 48 more  해결이 안되네요 ㅠㅠㅠ 

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] 제가 이해한 것은 new를 사용하면 계속 새로운 내용으로 바뀔 때마다 new 객체가 생성되어 new대신 public MemberService(MemberRepository memberRepository){ this.memberRepository = memberRepository; }을 사용하는 것인가요?이러한 방법이 DI가 맞나요?

MemberRepository를 개발할 때, @PersistenceContext를 사용할 때와 @RequiredArgsConstructor를 사용할 때 테스트 결과가 달라져서 문의남깁니다.@PersistenceContextprivate EntityManager em;은 가능하지만, @RequiredArgsConstructor를 사용할 때는 final이 들어가야만 하던데 왜 그런지 알 수 있을까요?

안녕하세요 태현님, 항상 좋은 강의 감사드립니다.다름이 아니라 저희는 직접 ec2의 서버 내에서 create table을 해주었는데 aws의 rds 라는 데이터베이스 서비스를 사용하는 것과의 차이가 궁급합니다. 굳이 rds를 빌릴 필요가 없는 것일까요?

Order 클래스에 작성한 createOrder 입니다. Order order = Order.createOrder 에서 마지막 매개변수를 불러오지 못하고 있습니다.불러올 수 있는 값에도 orderItem이 없습니다. 어떻게 해결해야 할까요 ?

안녕하세요, 김영한님 야생형 스타일로 강의 잘 듣다가 질문드립니다.질문을 적다가 order가 형성되는 순간에 해당 order와 입력된 orderItem과 연결이 되는 거 같다는 생각이 들었습니다. 제가 생각한 게 맞는지 질문드립니다. 정리하자면, OrderService에서 order 메소드를 실행할 때 orderItem과 생성된 order_id는 order가 생성되는 순간 해당 order_id와 orderItem와 연결되는 건가요? 답변해주시면 감사하겠습니다.감사합니다.

읽기 쉽게 fragments.html에 있는 코드를 settings.tags.html에 옮겨 적었습니다. 코드 내용<!DOCTYPE html> <html lang="en" xmlns:th="http://www.thymeleaf.org"> <head> <meta charset="UTF-8"> <title>Study Club</title> <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@4.4.1/dist/css/bootstrap.min.css" integrity="sha384-Vkoo8x4CGsO3+Hhxv8T/Q5PaXtkKtu6ug5TOeNV6gBiFeWPGFN9MuhOf23Q9Ifjh" crossorigin="anonymous"> <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css"> <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/@yaireo/tagify@3.5.1/dist/tagify.css"> <script src="https://code.jquery.com/jquery-3.4.1.min.js"></script> <script src="https://cdn.jsdelivr.net/npm/popper.js@1.16.0/dist/umd/popper.min.js" integrity="sha384-Q6E9RHvbIyZFJoft+2mJbHaEWldlvI9IOYy5n3zV9zzTtmI3UksdQRVvoxMfooAo" crossorigin="anonymous"></script> <script src="https://cdn.jsdelivr.net/npm/bootstrap@4.4.1/dist/js/bootstrap.min.js" integrity="sha384-wfSDF2E50Y2D1uUdj0O3uMBJnjuUD4Ih7YwaYd1iqfktj0Uod8GCExl3Og8ifwB6" crossorigin="anonymous"></script> <script src="https://cdn.jsdelivr.net/npm/jdenticon@3.2.0/dist/jdenticon.min.js" async integrity="sha384-yBhgDqxM50qJV5JPdayci8wCfooqvhFYbIKhv0hTtLvfeeyJMJCscRfFNKIxt43M" crossorigin="anonymous"> </script> <style> .container{ max-width: 100%; } .tagify-outside{ border: 0; padding: 0; margin: 0; } </style> </head> <body class="bg-light"> <nav class="navbar navbar-expand-sm navbar-dark bg-dark"> <a class="navbar-brand" href="/" th:href="@{/}"> <img src="/images/logo_symbol.png" width="30" height="30"> </a> <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation"> <span class="navbar-toggler-icon"></span> </button> <div class="collapse navbar-collapse" id="navbarSupportedContent"> <ul class="navbar-nav mr-auto"> <li class="nav-item"> <form th:action="@{/search/study}" class="form-inline" method="get"> <input class="form-control mr-sm-2" name="keyword" type="search" placeholder="스터디 찾기" aria-label="Search" /> </form> </li> </ul> <ul class="navbar-nav justify-content-end"> <li class="nav-item" sec:authorize="!isAuthenticated()"> <a class="nav-link" th:href="@{/login}">로그인</a> </li> <li class="nav-item" sec:authorize="!isAuthenticated()"> <a class="nav-link" th:href="@{/sign-up}">가입</a> </li> <li class="nav-item" sec:authorize="isAuthenticated()"> <a class="nav-link" th:href="@{/notifications}"> <i class="fa fa-bell-o"></i> </a> </li> <li class="nav-item" sec:authorize="isAuthenticated()"> <a class="nav-link btn btn-outline-primary" th:href="@{/notifications}"> <i class="fa fa-plus" aria-hidden="true"></i> 스터디 개설 </a> </li> <li class="nav-item dropdown" sec:authorize="isAuthenticated()"> <a class="nav-link dropdown-toggle" href="#" id="userDropdown" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false"> <svg th:if="${#strings.isEmpty(account?.profileImage)}" data-jdenticon-value="user127" th:data-jdenticon-value="${#authentication.name}" width="24" height="24" class="rounded border bg-light"></svg> <img th:if="${!#strings.isEmpty(account?.profileImage)}" th:src="${account.profileImage}" width="24" height="24" class="rounded border"/> </a> <div class="dropdown-menu dropdown-menu-sm-right" aria-labelledby="userDropdown"> <h6 class="dropdown-header"> <span sec:authentication="name">Username</span> </h6> <a class="dropdown-item" th:href="@{'/profile/' + ${#authentication.name}}">프로필</a> <a class="dropdown-item" >스터디</a> <div class="dropdown-divider"></div> <a class="dropdown-item" href="#" th:href="@{'/settings/profile'}">설정</a> <form class="form-inline my-2 my-lg-0" action="#" th:action="@{/logout}" method="post"> <button class="dropdown-item" type="submit">로그아웃</button> </form> </div> </li> </ul> </div> </nav> <div class="container"> <div class="row mt-5 justify-content-center"> <div class="col-2"> <div class="list-group"> <a class="list-group-item list-group-item-action" th:classappend="${currentMenu == 'profile'}? active" href="#" th:href="@{/settings/profile}">프로필</a> <a class="list-group-item list-group-item-action" th:classappend="${currentMenu == 'password'}? active" href="#" th:href="@{/settings/password}">비밀번호</a> <a class="list-group-item list-group-item-action" th:classappend="${currentMenu == 'notifications'}? active" href="#" th:href="@{/settings/notifications}">알림</a> <a class="list-group-item list-group-item-action" th:classappend="${currentMenu == 'tags'}? active" href="#" th:href="@{/settings/tags}">관심 주제</a> <a class="list-group-item list-group-item-action" th:classappend="${currentMenu == 'zones'}? active" href="#" th:href="@{/settings/zones}">활동 지역</a> <a class="list-group-item list-group-item-action list-group-item-danger" th:classappend="${currentMenu == 'account'}? active" href="#" th:href="@{/settings/account}">계정</a> </div> </div> <div class="col-8"> <div class="row"> <h2 class="col-12">관심있는 스터디 주제</h2> </div> <div class="row"> <div class="col-12"> <div class="alert alert-info" role="alert"> 참여하고 싶은 스터디 주제를 입력해 주세요. 스터디가 생기면 알림을 받을 수 있습니다. 태그 입력 후 콤마(,) 또는 엔터를 입력하세요. </div> <input id="tags" type="text" name="tags" class="tagify-outside" aria-describedby="tagHelp"/> </div> </div> </div> </div> </div> <script type="application/javascript" th:inline="javascript"> $(function () { var csrfToken = /*[[${_csrf.token}]]*/ null; var csrfHeader = /*[[${_csrf.headerName}]]*/ null; $(document).ajaxSend(function (e, xhr, options){ xhr.setRequestHeader(csrfHeader, csrfToken); }); }); </script> <script src="https://cdn.jsdelivr.net/npm/@yaireo/tagify@3.5.1/dist/tagify.min.js"></script> <script type="application/javascript" th:inline="javascript"> $(function() { function tagRequest(url, tagTitle) { $.ajax({ dataType: "json", autocomplete: { enabled: true, rightKey: true, }, contentType: "application/json; charset=utf-8", method: "POST", url: "[(${baseUrl})]" + url, data: JSON.stringify({'tagTitle': tagTitle}) }).done(function (data, status) { console.log("${data} and status is ${status}"); }); } function onAdd(e) { tagRequest("/add", e.detail.data.value); } function onRemove(e) { tagRequest("/remove", e.detail.data.value); } var tagInput = document.querySelector("#tags"); var tagify = new Tagify(tagInput, { pattern: /^.{0,20}$/, whitelist: JSON.parse(document.querySelector("#whitelist").textContent), dropdown : { enabled: 1, // suggest tags after a single character input } // map tags }); tagify.on("add", onAdd); tagify.on("remove", onRemove); // add a class to Tagify's input element tagify.DOM.input.classList.add('form-control'); // re-place Tagify's input element outside of the element (tagify.DOM.scope), just before it tagify.DOM.scope.parentNode.insertBefore(tagify.DOM.input, tagify.DOM.scope); }); </script> </body> </html>결과 화면

[질문 템플릿]1. 강의 내용과 관련된 질문인가요? 예2. 인프런의 질문 게시판과 자주 하는 질문에 없는 내용인가요? 예3. 질문 잘하기 메뉴얼을 읽어보셨나요? 예[질문 내용]본 강의에서 선생님 화면처럼 sql 이 로그에 나오지 않습니다. yml 파일은 똑같이 작성했는데도 나오지 않는 이유를 모르겠습니다... 

안녕하세요 토비님제가 자주 질문 드려서 싫어 하실거 같네요..https://www.url01.urlcom/충청도 or 제주도 or 인제군 or ...(지자체 정보 170개 )이런식으로 ~Controller.java170개의 경우를 겟매핑이나 포스트매핑(보안문제로)해야 합니다@GetMapping({ '/충청도', '/제주도', or '/인제군' or ......이런식으로 170 개의 지자체 })아래 부분을 위해서 수기 타이핑 문자열이 아닌db에서 불러와서 배열로 넣을려고 하니 되지 않아서제가 잘못 생각하고 있는지 여쭤봅니다변수 = 서비스.지자체리스트; //170개 db에서 꺼내옴@GetMapping({ value = 변수 }) ==> 이거 원래 안되는 것일 까요? 계속 스택오버플로우나 구글링 찾아봐도 제가답을 못 찾았습니다 혹시 원래 되는 기능 이라면 , 제가 어디 문서를 찾아 봤었어야 할까요?( 예를 들면 토비님 같은 경우스프링 공식 문서 샘플 설명 사이트 나, 자주 방문하는 이 사이트 찾아 보면 금방 답이 나왔을 것이다이런 부분 알려 주시면 감사합니다.. ) 

강의를 보다가 궁금한 점이 생겨 이렇게 질문을 남깁니다 !프론트에서 page, size, sort 정보를 파라미터로 넘길텐데/** * 페이징과 정렬 */ @GetMapping("/members") public Page<Member> list(Pageable pageable) { Page<Member> page = memberRepository.findAll(pageable); return page; }여기서 그러면 알아서 pageable 객체로 바인딩 되는 것인가요 ?따로 설정할 필요가 없이 page, size 값을 알아서 바인딩 시켜주는 것인지 궁금합니다.         

pinpoint docker 받아서 docker compose로 실행해봤는데요.기본으로 제공되는 quickapp에서api 요청을 계속해서 날려도 핀포인트 웹 컨트롤러에서 초반에 2~3건정도만 기록될 뿐, 추가적인 api 성공기록이 남질 않더라구요. 원래 그런건가요?다른 api 요청도 보내봤는데 아예 기록에 안남습니다

[질문 템플릿]1. 강의 내용과 관련된 질문인가요? (예)2. 인프런의 질문 게시판과 자주 하는 질문에 없는 내용인가요? (예)3. 질문 잘하기 메뉴얼을 읽어보셨나요? (예)[질문 내용]@SpringBootTest 사용 이유가 궁금합니다.강의에서 MemberServiceTest에서는 사용하지 않고 MemberServiceIntegrationTest에서는 사용을 합니다.자료에는 "스프링 컨테이너와 테스트를 함께 실행한다." 라고 간략하게 설명이 되어 있습니다.제가 이해가 부족하여 영상 및 해당 설명으로 이해가 되지 않습니다.  제가 이해한 바로는 @SpringBootTest는 DB를 사용하여 넣는 건지 궁금합니다. 감사합니다.

페치조인은 그렇다면 어떤 경우에 사용해야 한다고 봐야 하나요 ?양방향 매핑이 되어 있는 엔티티들의 경우에는 거의 쓴다고 보면 될까요 ?

[질문 템플릿]1. 강의 내용과 관련된 질문인가요? (예/아니요) 예2. 인프런의 질문 게시판과 자주 하는 질문에 없는 내용인가요? (예/아니오) 예3. 질문 잘하기 메뉴얼을 읽어보셨나요? (예/아니오) 예EntityA 1:N EntityBEntityB 1:N EntityC이런식으로 있을 때 ,EntityA 가 EntityB를 @oneToMany로 가지고있고,EntityB 가 EntityC를 @oneToMany로 가지고 있습니다. 배치사이즈 옵션을 넣고select a from EntityA a 했을때 , EntityA의 갯수만큼 EntityB에 in절로 EntityA의 키값을 넣어서 @oneToMany를 한번에 끌고왔다고 했을 때 ,EntityB안에있는 EntityC를 또 EntityB의 갯수만큼 EntityC에 in절로 EntityB의 키값을 넣어서 한번에 끌고 올 수 있는 방법이 있는지 궁금했습니다. 다중 페치조인 안되는걸 알지만 예를 들어서 이런걸 원한다고 생각하시면 될 것 같습니다select a from EntityA a join fetch EnitityB(List) b join fetch b.EntityC(List)이런식으로 컬럼 갯수가 일대다 일대다로 기하급수적으로 증가하는 경우인데배치사이즈를 사용하여 select a from EntityA a 를 했을 땐 a.EntityB 에 접근할때 당연히 in 절로 가져와주지만 EntityB의 일대다인 EntityC 를 조회 할 땐 N+1이 다시 터집니다엮여있는 모든 연관관계들을 IN절로 태우고 싶은데 방법이 없을까요?

자바에서는 Entity나 클래스를 만들 때 접근 제어자로 private을 붙이는게 일반적이었는데요. 코틀린에서는 그렇게 하면 객체를 생성하고도 밖에서 바로 접근이 안 되는 거 같네요ㅠprivate을 붙여주고 custom getter 같은걸로 객체 생성 후 호출하게 해주는 것이 좋은가요? 아니면 접근 제어자를 안 붙이고 그냥 쓰는게 좋은가요..?

[질문 템플릿]1. 강의 내용과 관련된 질문인가요? 예2. 인프런의 질문 게시판과 자주 하는 질문에 없는 내용인가요? 예3. 질문 잘하기 메뉴얼을 읽어보셨나요? 예[질문 내용]안녕하세요! [강의] 주문 조회 V6: JPA에서 DTO로 직접 조회, 플랫 데이터 최적화 관련해서 궁금한 점이 있습니다. findAllByDto_flat()에서 distinct를 통해 중복을 제거하는게 아니라 강의와 같이 findAllByDto_flat() 호출 후 groupingBy를 통해 중복을 제거했을 때 서로 어떤 차이가 있나요?

강의에서는 List<Order> orders = orderRepository.findAllByString(new OrderSearch()); 로 수업해주시는데 강의자료에는 List<Order> orders = orderRepository.findAll(); 로 나와있습니다.