기본편 v1.0 pdf 파일 26페이지에서  위 쪽에 final을 지워야 하는 거 아닌가요?? 강의에서는 final은 초기값을 받아야한다고 지워주셨는데 강의 자료에서는 final이 남아있어서 글 남깁니당 쌤 진짜 강의 들으면 들을수록 넘 좋네요.... 감사합니다😍

이거 leetcode 에서 먼저 풀어보고 강의를 듣는게 좋을까요?? 아니면 강의를 먼저 듣고 문제를 직접 푸는게 좋을까요??? 코딩 테스트에 맞춰서 공부하려면 어떻게 하는게 좋을까요?? 예전에 leetcode top 100 에서 easy 만 먼저 풀었던 적이 있는데 medium 부터는 손도 못대겠더라구요 ㅠㅠ

안녕하세요 생명주기 파트 수업을 듣던 중에 궁금한 것이 생겨서 질문드립니다 ^^; <script>   import { beforeUpdate, afterUpdate } from 'svelte';   let num = 0;   let p;   function handleClick() {     num += 1;   }   beforeUpdate(() => {     console.log('beforeUpdate', p);   })   afterUpdate(() => {     console.log('afterUpdate', p);   }) </script> <button on:click={handleClick}>Add</button> <p bind:this={p}>{num}</p> 위 코드를 실행하면 아래처럼 결과가 나옵니다. 첫번째의 beforeUpdate, 두번째의 afterUpdate는 페이지 로딩 전 후 일 것이고 세번째 beforeUpdate 로그는 코드의 마지막줄인  <p bind:this={p}>{num}</p> 에 의해서 DOM이 다시 수정되어 나온 결과라고 생각합니다 그런데 afterUpdate 로그는 왜 나오질 않는지 궁금합니다 코드를 바꿔가며 테스트해봐도 afterUpdate는 계속 동작이 되질 않습니다

총 시간은 0분/0분으로 되어있고 각 강의마다 1분 미만으로 표시되고 있습니다.

디비연동은 다른 react 수업에 나오던데 그거 보면 되나요? 그리고 또 궁금 한게... 앱과 웹은 다른데 이 수업은 앱에 치중 되어 있잖아요... 그러면 이걸로만으로 부족 하겠지만 구글스토어에서 다운 받는 어플 같은거 만들 수 있게 하는게 이 수업인가요?

docker를 설치하고 docker run -it redis 를 실행 후 이런 에러가 뜹니다..ㅠ

안녕하세요 강사님 강의 잘보고 있습니다~ 15분경에 연관관계 메서드 작성하실때 의문점이 생겼는데요 지난시간에 Team과 Member가 있는 프로젝트에서는 연관관계의 주인 쪽에서 메서드를 작성할때 public void changeTeam(Team team) { this.team = team; team.getMembers().add(this);} 이렇게 하였고 연관관계의 주인이 아닌쪽(Team)에서 메서드를 작성하실 때는 이렇게 하셨습니다. public void addMembers(Member member) { member.setTeam(this); members.add(member);} 그래서 저는 어느 쪽에서 하든지 먼저 새로운 객체를 필드에 넣어주고 리스트에 객체를 추가하는 순서라고 이해를 하였는데요 그런데 이번시간에는 public void addOrderItems(OrderItem orderItem) { orderItems.add(orderItem); orderItem.setOrder(this);} 이렇게 다른 순서로 작성하셔서 메서드 작성 순서가 바뀌어도 상관이 없는 것인지 헷갈리네요.. 제가 혹시 이해하지 못하고 놓치고 있는게 있을까요?

자영업을 하고 있는데 블로그 만들어서 홍보할 생각입니다. 많은 기대가 됩니다. ^^ 메일은 qkrwjddyd@gmail.com 입니다.

════════ Exception caught by widgets library ═══════════════════════════════════════════════════════ The following FirebaseException was thrown building StreamBuilder<FirebaseUser>(state: _StreamBuilderBaseState<FirebaseUser, AsyncSnapshot<FirebaseUser>>#fe17e): [core/no-app] No Firebase App '[DEFAULT]' has been created - call Firebase.initializeApp() The relevant error-causing widget was: StreamBuilder<FirebaseUser> file:///C:/Users/PC/AndroidStudioProjects/instagram_clone/lib/root_page.dart:10:12 When the exception was thrown, this was the stack: #0 MethodChannelFirebase.app (package:firebase_core_platform_interface/src/method_channel/method_channel_firebase.dart:118:5) #1 Firebase.app (package:firebase_core/src/firebase.dart:52:41) #2 FirebaseAuth.instance (package:firebase_auth/src/firebase_auth.dart:37:47) #3 new _LoginPageState (package:instagram_clone/login_page.dart:14:43) #4 LoginPage.createState (package:instagram_clone/login_page.dart:9:36) ... ════════════════════════════════════════════════════════════════════════════════════════════════════

항상 강의 잘 보고 있습니다. 다름이 아니라 오류 해결 시도를 많이 해봤는데 잘 안 잡혀서 여쭤 봅니다 오류 코드 올려 드리겠습니다. HTTP 상태 500 – 내부 서버 오류 타입 예외 보고 메시지 서블릿 [appServlet]을(를) 위한 Servlet.init() 호출이 예외를 발생시켰습니다. 설명 서버가, 해당 요청을 충족시키지 못하게 하는 예기치 않은 조건을 맞닥뜨렸습니다. 예외 javax.servlet.ServletException: 서블릿 [appServlet]을(를) 위한 Servlet.init() 호출이 예외를 발생시켰습니다. org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541) org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:690) org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:373) org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868) org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1590) org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) java.lang.Thread.run(Unknown Source) 근본 원인 (root cause) org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'restApiController': Unsatisfied dependency expressed through field 'userService'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userService': Injection of resource dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'loginUserBean': Scope 'session' is not active for the current thread; consider defining a scoped proxy for this bean if you intend to refer to it from a singleton; nested exception is java.lang.IllegalStateException: No thread-bound request found: Are you referring to request attributes outside of an actual web request, or processing a request outside of the originally receiving thread? If you are actually operating within a web request and still receive this message, your code is probably running outside of DispatcherServlet: In this case, use RequestContextListener or RequestContextFilter to expose the current request. org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:643) org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:116) org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:399) org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1422) org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:594) org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517) org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323) org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321) org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:879) org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:878) org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:550) org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:702) org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:668) org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:716) org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:591) org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:530) org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:170) javax.servlet.GenericServlet.init(GenericServlet.java:158) org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541) org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:690) org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:373) org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868) org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1590) org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) java.lang.Thread.run(Unknown Source) 근본 원인 (root cause) org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userService': Injection of resource dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'loginUserBean': Scope 'session' is not active for the current thread; consider defining a scoped proxy for this bean if you intend to refer to it from a singleton; nested exception is java.lang.IllegalStateException: No thread-bound request found: Are you referring to request attributes outside of an actual web request, or processing a request outside of the originally receiving thread? If you are actually operating within a web request and still receive this message, your code is probably running outside of DispatcherServlet: In this case, use RequestContextListener or RequestContextFilter to expose the current request. org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessProperties(CommonAnnotationBeanPostProcessor.java:337) org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1422) org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:594) org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517) org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323) org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321) org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276) org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1287) org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1207) org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:640) org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:116) org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:399) org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1422) org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:594) org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517) org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323) org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321) org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:879) org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:878) org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:550) org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:702) org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:668) org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:716) org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:591) org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:530) org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:170) javax.servlet.GenericServlet.init(GenericServlet.java:158) org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541) org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:690) org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:373) org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868) org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1590) org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) java.lang.Thread.run(Unknown Source) 근본 원인 (root cause) org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'loginUserBean': Scope 'session' is not active for the current thread; consider defining a scoped proxy for this bean if you intend to refer to it from a singleton; nested exception is java.lang.IllegalStateException: No thread-bound request found: Are you referring to request attributes outside of an actual web request, or processing a request outside of the originally receiving thread? If you are actually operating within a web request and still receive this message, your code is probably running outside of DispatcherServlet: In this case, use RequestContextListener or RequestContextFilter to expose the current request. org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:368) org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:276) org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:207) org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.resolveBeanByName(AbstractAutowireCapableBeanFactory.java:454) org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.autowireResource(CommonAnnotationBeanPostProcessor.java:543) org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.getResource(CommonAnnotationBeanPostProcessor.java:513) org.springframework.context.annotation.CommonAnnotationBeanPostProcessor$ResourceElement.getResourceToInject(CommonAnnotationBeanPostProcessor.java:653) org.springframework.beans.factory.annotation.InjectionMetadata$InjectedElement.inject(InjectionMetadata.java:224) org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:116) org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessProperties(CommonAnnotationBeanPostProcessor.java:334) org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1422) org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:594) org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517) org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323) org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321) org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276) org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1287) org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1207) org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:640) org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:116) org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:399) org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1422) org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:594) org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517) org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323) org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321) org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:879) org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:878) org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:550) org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:702) org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:668) org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:716) org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:591) org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:530) org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:170) javax.servlet.GenericServlet.init(GenericServlet.java:158) org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541) org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:690) org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:373) org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868) org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1590) org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) java.lang.Thread.run(Unknown Source) 근본 원인 (root cause) java.lang.IllegalStateException: No thread-bound request found: Are you referring to request attributes outside of an actual web request, or processing a request outside of the originally receiving thread? If you are actually operating within a web request and still receive this message, your code is probably running outside of DispatcherServlet: In this case, use RequestContextListener or RequestContextFilter to expose the current request. org.springframework.web.context.request.RequestContextHolder.currentRequestAttributes(RequestContextHolder.java:131) org.springframework.web.context.request.SessionScope.get(SessionScope.java:55) org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:356) org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:276) org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:207) org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.resolveBeanByName(AbstractAutowireCapableBeanFactory.java:454) org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.autowireResource(CommonAnnotationBeanPostProcessor.java:543) org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.getResource(CommonAnnotationBeanPostProcessor.java:513) org.springframework.context.annotation.CommonAnnotationBeanPostProcessor$ResourceElement.getResourceToInject(CommonAnnotationBeanPostProcessor.java:653) org.springframework.beans.factory.annotation.InjectionMetadata$InjectedElement.inject(InjectionMetadata.java:224) org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:116) org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessProperties(CommonAnnotationBeanPostProcessor.java:334) org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1422) org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:594) org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517) org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323) org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321) org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276) org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1287) org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1207) org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:640) org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:116) org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:399) org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1422) org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:594) org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517) org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323) org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321) org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:879) org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:878) org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:550) org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:702) org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:668) org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:716) org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:591) org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:530) org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:170) javax.servlet.GenericServlet.init(GenericServlet.java:158) org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541) org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:690) org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:373) org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868) org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1590) org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) java.lang.Thread.run(Unknown Source) 비고 근본 원인(root cause)의 풀 스택 트레이스를, 서버 로그들에서 확인할 수 있습니다. Apache Tomcat/9.0.36

배출구 스프라이트 slice한 후에 계층뷰에 올리고 애니메이션 폴더 만들어 애니 파일만 저장하면 자동으로 배출구 애니메이션이 만들어지는건가요? 아니면 따로 뭘 더 조정해 줘야 하나요? 수업 마지막에 다른 애니메이션을 만들 필요가 있을 때 다시 다룬다고 하셨는데 그때 알려주시는 방법대로 하면 배출구 애니메이션도 만들수 있는 거죠?

맥으로는 수업안듣는게 나을거 같습니다. 무슨 에러고치는것만 한시간 넘게걸리고 결국 해결도안되고 지금 댓글들이 다 해결해 주는거같은데 그런거를 좀 모아서 공지라도 좀 해주시지... 걍 맥으로 때려치우고 윈도우로 듣습니다 애플로는 화딱지 나서 못해먹겠네요 ㅡ,ㅡ

안녕하세요 개발자님. 카카오 api를 사용하는 과정 중에서 오류가 떠서 질문 드립니다. services.js:5 GET http://dapi.kakao.com/v2/local/search/keyword.json?page=1&size=15 400 (Bad Request) 같은 오류가 뜨는데.. 어디에서 오류가 난지 확인이 안되고 있습니다. 아래는 제 코드입니다. http://colorscripter.com/s/kBEFm54

안녕하세요:) 1. 매출은 액션플랜을 주지 못하는 후행지표라고 하셨는데, ARPPU도 어느정도 후행지표처럼 느껴져서요. ARPPU는 어떤 액션플랜을 주는지 궁금합니다. REVENUE 쪼개보기 실습을 했지만 아직 헷갈리네요. 예를 들어, '현재 서비스가 고가 상품을 프로모션해야하는 단계라고 가정한다면,  이 단계에서 OMTM으로 'ARPPU'는 되지만, '매출'은 왜 안되는지, 이 때 ARPPU는 어떤 액션플랜을 주는지  궁금합니다.  2. 항상 매출이 OMTM이 되어서 안되는 하나의 이유로, 서비스의 핵심가치와 무관하다는 내용이 나왔는데요. 매출이 늘지만 서비스가 잘못 되고 있는 예시가 궁금해서 질문드립니다.  매번 친절한 답변 감사합니다!

강의를 다 듣고 oracle 11g로 테이블 자동 생성 테스트 중에 있습니다 h2데이터베이스 사용중일땐 ddl-auto를 create로 설정하면 DB에 테이블이 없을때도 'drop table ~ if exist'을 통해 테이블이 존재 하는 경우를 체크 한 뒤 삭제하고 재생성해주었습니다 근데 오라클로 설정하니 존재여부를 확인하지 않고 바로 'drop table clip cascade constraints ' 쿼리를 날립니다 당연히 초반에 테이블이 없기 때문에 table or view does not exist라는 에러가 발생하게 됩니다 오라클 DB와 연동할때도 h2처럼 if exist로 존재여부를 확인한 뒤 테이블을 생성하는 방법은 없을까요?

안녕하세요 ! 이 문제에서 입력을 cin으로 받아 a vector에 저장하는 코드를 짰는데 마지막 숫자가 안받아지는 에러가 납니다. 코드는 다음과 같습니다. int n, k,; cin >> n >> k; vector<int> a(n); for (int i=0; i<n; i++) {     cin >> a[i]; } 확인해보니 for문의 마지막바퀴에 들어가긴 들어가는데 cin이 안됩니다. 제 컴퓨터의 오류인가요 ..? 확인해주시면 감사하겠습니다.

꼭 Decision Tree 기법 말고도 다른 머신러닝 기법들을 사용할때 max depth 나 min samples split 과 같은 parameter들은 분석자의 경험에 의해서 정하는 것인가요? 강의에서의 예제와 같이 max depth들을 예를들어 6,8,10,12,14 등으로 할때 위 6,810,12,14 과 같은 파라미터들은 어떤 기준으로 해당 수치를 정하는 것인가요?

vi 검색 영상이요

안녕하세요, 강의를 잘 따라오면서 열심히 공부하고 있는 수강생입니다.  gmarket 베스트 상품 크롤링 실습을 따라하면서 아래와 같은 오류가 나서 질문드립니다.  크롤링한 데이터 다시 크롤링하기 강의 中 2020.09.23일 기준 20번째 title,price,provider_info를 불러올 때 None값이 나타납니다. 코드의 오류일까요 g마켓의 html구조의 문제일까요 답변부탁드립니다.  

이전 GCP 환경 실습에서는 deployment를 먼저 생성하고 그 deployment가 실제 pod 객체를 생성한다고 배웠던 기억이 납니다. 또, deployment의 replicas를 통해 pod의 스케일링을 조작하기도 했었구요. 그런데 지금 pod실습에서는 pod.yaml의 생성을 통해 바로 pod을 생성했습니다. deployment의 생성 없이 pod만 바로 생성해도 문제가 없다면 deployment의 존재 의의가 무엇인가요? 그냥 replicas를 다루기 위한 도구일 뿐 필수적인 건 아니며 deployment 없이 pod을 바로 생성해도 문제가 없다고 생각해도 될까요?