requirements.txt 토씨 하나 안틀리고 작성하고,pip install -r requirements.txt를 하면 return data.decode(UnicodeDecodeError: 'cp949' codec can't decode byte 0xec in position 2: illegal multibyte sequence오류가 떠서 검색 결과, 파일 읽을 때는 file_open = open("file path", 'r', encoding="UTF-8") 이렇게 하라는 글이 많았는데, 해당 f.read하는 라이브러리 찾아가서(req_file.py)try: with open(url, "rb", encoding="UTF-8") as f: 이렇게 바꿔주고 실행해도 에러 나오구요(ValueError: binary mode doesn't take an encoding argument)...어디서는 또pip install pygetwindow==0.0.1 하고 다시 해보면 되었다는 글이 있어서 해보았는데도 안되네요 ㅠㅠㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡ앜ㅋㅋㅋhttps://www.inflearn.com/questions/180989/pip-install-r-requirements-txt-%EC%98%A4%EB%A5%98여기 말대로 주석은 지우고 실행해보니까 됩니다!!!그런데 궁금한 점) 왜 강사님 컴퓨터에선 되고 내 컴퓨터에서는 안되는지... 올해 새로 산 노트북인데 ㅠㅠ

안녕하세요 선생님 강의 수강 중 질문이 3가지 있어서 질문드려요 !  Post Entity 생성에서 body 컬럼을 이렇게 만드는데요.@Column({nullable: true, type:"text"})body: string;Q. body는 string 이란것을 명시했는데 type:"text"를 따로 입력한 이유가 뭔가요 선생님~? 그리고 궁금한게 또 있습니다.@Column() @ManyToOne(()=> Post)post: Post;Q. Vote Entity 생성에서 post 컬럼을 만들 때 ManyToOne 데코레이터를 쓸 때 왜 타입만 명시하는건가요?Post Entity 에서는 @ManyToOne(() => User, (user) => user.posts) 이렇게 사용하는데요 ㅠ 마지막 질문 입니다. Comment Entity 속 코드 인데요 reduce메소드에서 || 연산자가 어떻게 동작하는 지 궁금합니다. || or 연산자니까 (curObject.value || 0) 는 true or false 인데 Q. 왜 curObject.value 만 쓰지 않고 curObject.value || 0 을 더했는 지 궁금합니다 ㅠㅠ @Expose() get voteScore(): number { const initalValue = 0return this.votes?.reduce((prevValue, curObject) => prevValue + (curObject.value || 0), initalValue) }   

선생님 빨간 줄 어떻게 해결해야 하는건지요..?구글에 찾아보니까 ojdbc 필요하다 해서 저는 mysql 사용하려고 하니까 mysql 커넥터 j를 빌드패스에 추가했습니다..소스는 선생님 깃허브 그대로 가져왔습니다.

1. 책 - 기술 서적 선택 순서자바 기본서 추천에 대해서 / 대표적인 기본서 비교이 링크의 글이 삭제되었습니다!다른 링크로 대체해야될거같아요

[질문 템플릿]1. 강의 내용과 관련된 질문인가요? 예(저번시간 내용과의 응용)2. 인프런의 질문 게시판과 자주 하는 질문에 없는 내용인가요? 예3. 질문 잘하기 메뉴얼을 읽어보셨나요? 예[질문 내용]저번 시간에 공부한 LoginCheckInterCeptor와 이번 시간에 배운 오류 페이지를 응용하여 적용해보려고 하니 먼저 로그인 페이지로 이동한 다음 404 에러 페이지로 이동하게 되었습니다. 이 경우 WhiteList 인터셉터를 따로 만들어 404에러(잘못된 URL)를 먼저 체크 할 수 있도록 하는 방법으로 해결하려고 구상하고 있습니다. 이 방법으로 해결하는게 맞나요?

강의 자료를 열어보니 pdf 파일로 목차만 나와있던데 모든 자료가 나와 있는 강의 자료가 있다면 부탁드립니다! xmsd888@naver.com입니다 감사합니다!

ERROR in ./src/main/index.js 6:0-26Module not found: Error: Can't resolve 'axois' in 'C:\Users\wasab\OneDrive\바탕 화면\reactfirst\src\main'이런식으로 떠요 분명히 index.js에 axios를 import했고 npm으로 install packages.json하고 module에 axios있는것을 확인하였는데 지속적으로 오류가납니다

안녕하세요. 연휴에도 고생 많으십니다.HelloSpringApplication 실행시 계속 에러가 떠서 질문 남깁니다.. 2022-12-25 12:02:05.428 ERROR 69371 --- [ main] com.zaxxer.hikari.pool.HikariPool : HikariPool-1 - Exception during pool initialization.org.h2.jdbc.JdbcSQLNonTransientConnectionException: Connection is broken: "java.net.ConnectException: Connection refused (Connection refused): localhost" [90067-214] at org.h2.message.DbException.getJdbcSQLException(DbException.java:678) ~[h2-2.1.214.jar:2.1.214] at org.h2.message.DbException.getJdbcSQLException(DbException.java:477) ~[h2-2.1.214.jar:2.1.214] at org.h2.message.DbException.get(DbException.java:212) ~[h2-2.1.214.jar:2.1.214] at org.h2.engine.SessionRemote.connectServer(SessionRemote.java:437) ~[h2-2.1.214.jar:2.1.214] at org.h2.engine.SessionRemote.connectEmbeddedOrServer(SessionRemote.java:325) ~[h2-2.1.214.jar:2.1.214] at org.h2.jdbc.JdbcConnection.<init>(JdbcConnection.java:122) ~[h2-2.1.214.jar:2.1.214] at org.h2.Driver.connect(Driver.java:59) ~[h2-2.1.214.jar:2.1.214] at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:138) ~[HikariCP-4.0.3.jar:na] at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:364) ~[HikariCP-4.0.3.jar:na] at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:206) ~[HikariCP-4.0.3.jar:na] at com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:476) ~[HikariCP-4.0.3.jar:na] at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:561) ~[HikariCP-4.0.3.jar:na] at com.zaxxer.hikari.pool.HikariPool.<init>(HikariPool.java:115) ~[HikariCP-4.0.3.jar:na] at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:112) ~[HikariCP-4.0.3.jar:na] at org.hibernate.engine.jdbc.connections.internal.DatasourceConnectionProviderImpl.getConnection(DatasourceConnectionProviderImpl.java:122) ~[hibernate-core-5.6.14.Final.jar:5.6.14.Final] at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator$ConnectionProviderJdbcConnectionAccess.obtainConnection(JdbcEnvironmentInitiator.java:181) ~[hibernate-core-5.6.14.Final.jar:5.6.14.Final] at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:68) ~[hibernate-core-5.6.14.Final.jar:5.6.14.Final] at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:35) ~[hibernate-core-5.6.14.Final.jar:5.6.14.Final] at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.initiateService(StandardServiceRegistryImpl.java:101) ~[hibernate-core-5.6.14.Final.jar:5.6.14.Final] at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:263) ~[hibernate-core-5.6.14.Final.jar:5.6.14.Final] at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:237) ~[hibernate-core-5.6.14.Final.jar:5.6.14.Final] at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:214) ~[hibernate-core-5.6.14.Final.jar:5.6.14.Final] at org.hibernate.id.factory.internal.DefaultIdentifierGeneratorFactory.injectServices(DefaultIdentifierGeneratorFactory.java:175) ~[hibernate-core-5.6.14.Final.jar:5.6.14.Final] at org.hibernate.service.internal.AbstractServiceRegistryImpl.injectDependencies(AbstractServiceRegistryImpl.java:286) ~[hibernate-core-5.6.14.Final.jar:5.6.14.Final] at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:243) ~[hibernate-core-5.6.14.Final.jar:5.6.14.Final] at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:214) ~[hibernate-core-5.6.14.Final.jar:5.6.14.Final] at org.hibernate.boot.internal.InFlightMetadataCollectorImpl.<init>(InFlightMetadataCollectorImpl.java:173) ~[hibernate-core-5.6.14.Final.jar:5.6.14.Final] at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete(MetadataBuildingProcess.java:127) ~[hibernate-core-5.6.14.Final.jar:5.6.14.Final] at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.metadata(EntityManagerFactoryBuilderImpl.java:1460) ~[hibernate-core-5.6.14.Final.jar:5.6.14.Final] at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:1494) ~[hibernate-core-5.6.14.Final.jar:5.6.14.Final] at org.springframework.orm.jpa.vendor.SpringHibernateJpaPersistenceProvider.createContainerEntityManagerFactory(SpringHibernateJpaPersistenceProvider.java:58) ~[spring-orm-5.3.24.jar:5.3.24] at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:365) ~[spring-orm-5.3.24.jar:5.3.24] at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.buildNativeEntityManagerFactory(AbstractEntityManagerFactoryBean.java:409) ~[spring-orm-5.3.24.jar:5.3.24] at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:396) ~[spring-orm-5.3.24.jar:5.3.24] at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.afterPropertiesSet(LocalContainerEntityManagerFactoryBean.java:341) ~[spring-orm-5.3.24.jar:5.3.24] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1863) ~[spring-beans-5.3.24.jar:5.3.24] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1800) ~[spring-beans-5.3.24.jar:5.3.24] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:620) ~[spring-beans-5.3.24.jar:5.3.24] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542) ~[spring-beans-5.3.24.jar:5.3.24] at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[spring-beans-5.3.24.jar:5.3.24] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.24.jar:5.3.24] at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.24.jar:5.3.24] at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) ~[spring-beans-5.3.24.jar:5.3.24] at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1154) ~[spring-context-5.3.24.jar:5.3.24] at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:908) ~[spring-context-5.3.24.jar:5.3.24] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:583) ~[spring-context-5.3.24.jar:5.3.24] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:147) ~[spring-boot-2.7.6.jar:2.7.6] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:731) ~[spring-boot-2.7.6.jar:2.7.6] at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:408) ~[spring-boot-2.7.6.jar:2.7.6] at org.springframework.boot.SpringApplication.run(SpringApplication.java:307) ~[spring-boot-2.7.6.jar:2.7.6] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1303) ~[spring-boot-2.7.6.jar:2.7.6] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1292) ~[spring-boot-2.7.6.jar:2.7.6] at hello.hellospring.HelloSpringApplication.main(HelloSpringApplication.java:10) ~[classes/:na]Caused by: java.net.ConnectException: Connection refused (Connection refused) at java.base/java.net.PlainSocketImpl.socketConnect(Native Method) ~[na:na] at java.base/java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:412) ~[na:na] at java.base/java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:255) ~[na:na] at java.base/java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:237) ~[na:na] at java.base/java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) ~[na:na] at java.base/java.net.Socket.connect(Socket.java:608) ~[na:na] at org.h2.util.NetUtils.createSocket(NetUtils.java:135) ~[h2-2.1.214.jar:2.1.214] at org.h2.util.NetUtils.createSocket(NetUtils.java:99) ~[h2-2.1.214.jar:2.1.214] at org.h2.engine.SessionRemote.initTransfer(SessionRemote.java:130) ~[h2-2.1.214.jar:2.1.214] at org.h2.engine.SessionRemote.connectServer(SessionRemote.java:433) ~[h2-2.1.214.jar:2.1.214] ... 49 common frames omitted2022-12-25 12:02:05.432 WARN 69371 --- [ main] o.h.e.j.e.i.JdbcEnvironmentInitiator : HHH000342: Could not obtain connection to query metadataorg.h2.jdbc.JdbcSQLNonTransientConnectionException: Connection is broken: "java.net.ConnectException: Connection refused (Connection refused): localhost" [90067-214] at org.h2.message.DbException.getJdbcSQLException(DbException.java:678) ~[h2-2.1.214.jar:2.1.214] at org.h2.message.DbException.getJdbcSQLException(DbException.java:477) ~[h2-2.1.214.jar:2.1.214] at org.h2.message.DbException.get(DbException.java:212) ~[h2-2.1.214.jar:2.1.214] at org.h2.engine.SessionRemote.connectServer(SessionRemote.java:437) ~[h2-2.1.214.jar:2.1.214] at org.h2.engine.SessionRemote.connectEmbeddedOrServer(SessionRemote.java:325) ~[h2-2.1.214.jar:2.1.214] at org.h2.jdbc.JdbcConnection.<init>(JdbcConnection.java:122) ~[h2-2.1.214.jar:2.1.214] at org.h2.Driver.connect(Driver.java:59) ~[h2-2.1.214.jar:2.1.214] at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:138) ~[HikariCP-4.0.3.jar:na] at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:364) ~[HikariCP-4.0.3.jar:na] at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:206) ~[HikariCP-4.0.3.jar:na] at com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:476) ~[HikariCP-4.0.3.jar:na] at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:561) ~[HikariCP-4.0.3.jar:na] at com.zaxxer.hikari.pool.HikariPool.<init>(HikariPool.java:115) ~[HikariCP-4.0.3.jar:na] at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:112) ~[HikariCP-4.0.3.jar:na] at org.hibernate.engine.jdbc.connections.internal.DatasourceConnectionProviderImpl.getConnection(DatasourceConnectionProviderImpl.java:122) ~[hibernate-core-5.6.14.Final.jar:5.6.14.Final] at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator$ConnectionProviderJdbcConnectionAccess.obtainConnection(JdbcEnvironmentInitiator.java:181) ~[hibernate-core-5.6.14.Final.jar:5.6.14.Final] at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:68) ~[hibernate-core-5.6.14.Final.jar:5.6.14.Final] at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:35) ~[hibernate-core-5.6.14.Final.jar:5.6.14.Final] at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.initiateService(StandardServiceRegistryImpl.java:101) ~[hibernate-core-5.6.14.Final.jar:5.6.14.Final] at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:263) ~[hibernate-core-5.6.14.Final.jar:5.6.14.Final] at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:237) ~[hibernate-core-5.6.14.Final.jar:5.6.14.Final] at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:214) ~[hibernate-core-5.6.14.Final.jar:5.6.14.Final] at org.hibernate.id.factory.internal.DefaultIdentifierGeneratorFactory.injectServices(DefaultIdentifierGeneratorFactory.java:175) ~[hibernate-core-5.6.14.Final.jar:5.6.14.Final] at org.hibernate.service.internal.AbstractServiceRegistryImpl.injectDependencies(AbstractServiceRegistryImpl.java:286) ~[hibernate-core-5.6.14.Final.jar:5.6.14.Final] at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:243) ~[hibernate-core-5.6.14.Final.jar:5.6.14.Final] at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:214) ~[hibernate-core-5.6.14.Final.jar:5.6.14.Final] at org.hibernate.boot.internal.InFlightMetadataCollectorImpl.<init>(InFlightMetadataCollectorImpl.java:173) ~[hibernate-core-5.6.14.Final.jar:5.6.14.Final] at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete(MetadataBuildingProcess.java:127) ~[hibernate-core-5.6.14.Final.jar:5.6.14.Final] at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.metadata(EntityManagerFactoryBuilderImpl.java:1460) ~[hibernate-core-5.6.14.Final.jar:5.6.14.Final] at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:1494) ~[hibernate-core-5.6.14.Final.jar:5.6.14.Final] at org.springframework.orm.jpa.vendor.SpringHibernateJpaPersistenceProvider.createContainerEntityManagerFactory(SpringHibernateJpaPersistenceProvider.java:58) ~[spring-orm-5.3.24.jar:5.3.24] at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:365) ~[spring-orm-5.3.24.jar:5.3.24] at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.buildNativeEntityManagerFactory(AbstractEntityManagerFactoryBean.java:409) ~[spring-orm-5.3.24.jar:5.3.24] at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:396) ~[spring-orm-5.3.24.jar:5.3.24] at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.afterPropertiesSet(LocalContainerEntityManagerFactoryBean.java:341) ~[spring-orm-5.3.24.jar:5.3.24] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1863) ~[spring-beans-5.3.24.jar:5.3.24] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1800) ~[spring-beans-5.3.24.jar:5.3.24] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:620) ~[spring-beans-5.3.24.jar:5.3.24] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542) ~[spring-beans-5.3.24.jar:5.3.24] at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[spring-beans-5.3.24.jar:5.3.24] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.24.jar:5.3.24] at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.24.jar:5.3.24] at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) ~[spring-beans-5.3.24.jar:5.3.24] at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1154) ~[spring-context-5.3.24.jar:5.3.24] at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:908) ~[spring-context-5.3.24.jar:5.3.24] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:583) ~[spring-context-5.3.24.jar:5.3.24] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:147) ~[spring-boot-2.7.6.jar:2.7.6] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:731) ~[spring-boot-2.7.6.jar:2.7.6] at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:408) ~[spring-boot-2.7.6.jar:2.7.6] at org.springframework.boot.SpringApplication.run(SpringApplication.java:307) ~[spring-boot-2.7.6.jar:2.7.6] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1303) ~[spring-boot-2.7.6.jar:2.7.6] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1292) ~[spring-boot-2.7.6.jar:2.7.6] at hello.hellospring.HelloSpringApplication.main(HelloSpringApplication.java:10) ~[classes/:na]Caused by: java.net.ConnectException: Connection refused (Connection refused) at java.base/java.net.PlainSocketImpl.socketConnect(Native Method) ~[na:na] at java.base/java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:412) ~[na:na] at java.base/java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:255) ~[na:na] at java.base/java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:237) ~[na:na] at java.base/java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) ~[na:na] at java.base/java.net.Socket.connect(Socket.java:608) ~[na:na] at org.h2.util.NetUtils.createSocket(NetUtils.java:135) ~[h2-2.1.214.jar:2.1.214] at org.h2.util.NetUtils.createSocket(NetUtils.java:99) ~[h2-2.1.214.jar:2.1.214] at org.h2.engine.SessionRemote.initTransfer(SessionRemote.java:130) ~[h2-2.1.214.jar:2.1.214] at org.h2.engine.SessionRemote.connectServer(SessionRemote.java:433) ~[h2-2.1.214.jar:2.1.214] ... 49 common frames omitted2022-12-25 12:02:05.434 ERROR 69371 --- [ main] j.LocalContainerEntityManagerFactoryBean : Failed to initialize JPA EntityManagerFactory: Unable to create requested service [org.hibernate.engine.jdbc.env.spi.JdbcEnvironment]2022-12-25 12:02:05.436 WARN 69371 --- [ main] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaConfiguration.class]: Invocation of init method failed; nested exception is org.hibernate.service.spi.ServiceException: Unable to create requested service [org.hibernate.engine.jdbc.env.spi.JdbcEnvironment]2022-12-25 12:02:05.446 INFO 69371 --- [ main] o.apache.catalina.core.StandardService : Stopping service [Tomcat]2022-12-25 12:02:05.473 INFO 69371 --- [ main] ConditionEvaluationReportLoggingListener : Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.2022-12-25 12:02:05.501 ERROR 69371 --- [ main] o.s.boot.SpringApplication : Application run failedorg.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaConfiguration.class]: Invocation of init method failed; nested exception is org.hibernate.service.spi.ServiceException: Unable to create requested service [org.hibernate.engine.jdbc.env.spi.JdbcEnvironment] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1804) ~[spring-beans-5.3.24.jar:5.3.24] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:620) ~[spring-beans-5.3.24.jar:5.3.24] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542) ~[spring-beans-5.3.24.jar:5.3.24] at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[spring-beans-5.3.24.jar:5.3.24] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.24.jar:5.3.24] at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.24.jar:5.3.24] at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) ~[spring-beans-5.3.24.jar:5.3.24] at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1154) ~[spring-context-5.3.24.jar:5.3.24] at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:908) ~[spring-context-5.3.24.jar:5.3.24] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:583) ~[spring-context-5.3.24.jar:5.3.24] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:147) ~[spring-boot-2.7.6.jar:2.7.6] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:731) ~[spring-boot-2.7.6.jar:2.7.6] at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:408) ~[spring-boot-2.7.6.jar:2.7.6] at org.springframework.boot.SpringApplication.run(SpringApplication.java:307) ~[spring-boot-2.7.6.jar:2.7.6] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1303) ~[spring-boot-2.7.6.jar:2.7.6] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1292) ~[spring-boot-2.7.6.jar:2.7.6] at hello.hellospring.HelloSpringApplication.main(HelloSpringApplication.java:10) ~[classes/:na]Caused by: org.hibernate.service.spi.ServiceException: Unable to create requested service [org.hibernate.engine.jdbc.env.spi.JdbcEnvironment] at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:275) ~[hibernate-core-5.6.14.Final.jar:5.6.14.Final] at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:237) ~[hibernate-core-5.6.14.Final.jar:5.6.14.Final] at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:214) ~[hibernate-core-5.6.14.Final.jar:5.6.14.Final] at org.hibernate.id.factory.internal.DefaultIdentifierGeneratorFactory.injectServices(DefaultIdentifierGeneratorFactory.java:175) ~[hibernate-core-5.6.14.Final.jar:5.6.14.Final] at org.hibernate.service.internal.AbstractServiceRegistryImpl.injectDependencies(AbstractServiceRegistryImpl.java:286) ~[hibernate-core-5.6.14.Final.jar:5.6.14.Final] at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:243) ~[hibernate-core-5.6.14.Final.jar:5.6.14.Final] at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:214) ~[hibernate-core-5.6.14.Final.jar:5.6.14.Final] at org.hibernate.boot.internal.InFlightMetadataCollectorImpl.<init>(InFlightMetadataCollectorImpl.java:173) ~[hibernate-core-5.6.14.Final.jar:5.6.14.Final] at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete(MetadataBuildingProcess.java:127) ~[hibernate-core-5.6.14.Final.jar:5.6.14.Final] at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.metadata(EntityManagerFactoryBuilderImpl.java:1460) ~[hibernate-core-5.6.14.Final.jar:5.6.14.Final] at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:1494) ~[hibernate-core-5.6.14.Final.jar:5.6.14.Final] at org.springframework.orm.jpa.vendor.SpringHibernateJpaPersistenceProvider.createContainerEntityManagerFactory(SpringHibernateJpaPersistenceProvider.java:58) ~[spring-orm-5.3.24.jar:5.3.24] at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:365) ~[spring-orm-5.3.24.jar:5.3.24] at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.buildNativeEntityManagerFactory(AbstractEntityManagerFactoryBean.java:409) ~[spring-orm-5.3.24.jar:5.3.24] at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:396) ~[spring-orm-5.3.24.jar:5.3.24] at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.afterPropertiesSet(LocalContainerEntityManagerFactoryBean.java:341) ~[spring-orm-5.3.24.jar:5.3.24] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1863) ~[spring-beans-5.3.24.jar:5.3.24] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1800) ~[spring-beans-5.3.24.jar:5.3.24] ... 16 common frames omittedCaused by: org.hibernate.HibernateException: Access to DialectResolutionInfo cannot be null when 'hibernate.dialect' not set at org.hibernate.engine.jdbc.dialect.internal.DialectFactoryImpl.determineDialect(DialectFactoryImpl.java:100) ~[hibernate-core-5.6.14.Final.jar:5.6.14.Final] at org.hibernate.engine.jdbc.dialect.internal.DialectFactoryImpl.buildDialect(DialectFactoryImpl.java:54) ~[hibernate-core-5.6.14.Final.jar:5.6.14.Final] at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:138) ~[hibernate-core-5.6.14.Final.jar:5.6.14.Final] at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:35) ~[hibernate-core-5.6.14.Final.jar:5.6.14.Final] at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.initiateService(StandardServiceRegistryImpl.java:101) ~[hibernate-core-5.6.14.Final.jar:5.6.14.Final] at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:263) ~[hibernate-core-5.6.14.Final.jar:5.6.14.Final] ... 33 common frames omittedProcess finished with exit code 1  에러 내용이 너무 길어서, 보기 힘들게 긁어온점 양해 부탁드립니다.. ㅠㅠ올 한해 마무리 잘 하세요!

model.addAttribute("list", list);에 담은 것을<c:forEach var="vo" items="${list}"><tr><td>${vo.idx }</td><td>${vo.title }</td><td>${vo.writer }</td><td>${vo.indate }</td><td>${vo.count }</td></tr></c:forEach>모델로 담은 것을 jstl 문법이 아닌<%%> 자바 소스로는 어떻게 할수 있을까요?~어떻게 작성하면 되는지 궁금합니다.!

제가 수업을 놓쳐서 그런거지..아래 진도에서 언급한 "그림"이 무엇을 의미하는 건가요?강사님이 몇천장씩 그렸다는 게..포인터간의 관계도를 얘기 하는건가요?아니면 어떤 배열을 포인터로 구현하는 프로그램을 얘기하시는건지요?

모바일에서는 강의자료 다운로드가 가능한데요, 데스크탑환경에서는 제가 자료를 찾기가 어렵습니다. 어떻게 다운받을 수 있습니까??

강의 설명과 달리 실수로 include <limits>와 include <algorithm>을 뺐는데도 정상적으로 아래와 같이 수행이 됩니다.. 이유가 뭘까요? Microsoft Visual Studio Community 2022 (64-bit) - Current Version 17.4.2

 오류 원문'Menu' components don't accept text as child elements. Text in JSX has the type 'string', but the expected type of 'children' is 'Element'. Workspace/index.tsx에서 오류 Menu 컴포넌트에서 interface Props를 children 부분에서 오류 난 것 해결 참고한 사이트 : Text in JSX has the type 'string', but the expected type of 'children' is 'string | Element | Element[] 코드 이전 코드(components/Menu/index.tsx)interface Props { show: boolean; onCloseModal: (e: any) => void; style: CSSProperties; closeButton?: boolean; children: JSX.Element; } 수정 코드(components/Menu/index.tsx)interface Props { show: boolean; onCloseModal: (e: any) => void; style: CSSProperties; closeButton?: boolean; children: React.ReactNode; }

안녕하세요저는 데이터 시각화 개발을 하고 있는 개발자입니다.그래서 SVG에 관심이 많고 SVG를 사용해서 차트 및 그래프를 개발하고 있는데요1~2년 전만해도 라이브러리에 의존해서 개발하다가현재는 다양한 기획의도를 뒷받침 하기 위해 자체 라이브러리를 만들어 사용하고 있습니다드리고 싶은 질문은개발을 하다보니 디자인팀의 요구사항을 SVG 고유 태그만으로는 수용이 안되어 foreignObject 태그를 사용하여 html코드를 작성하여 만들고 있는데요혹시 foreignObject의 특징과 단점을 알 수 있을까요? 예를 들면 성능이 떨어진다든지 하는..기존 SVG 태그를 사용하는 것보다는 뭔가 다른 점이 있을 것 같은데 검증 자료가 딱히 없고 성능 차이도 엄청 크게 차이나지는 않는 거 같아서요..ㅠ아무튼 1분코딩님 덕분에 SVG에 대해 더 알게 되어 감사합니다.예전에 양재동코드랩 강의 하실 때 SVG, Canvas 실강으로 들어서 도움 많이 받았는데 이렇게 온라인 강의도 만들어주셔서 감사합니다.^^국내에는 SVG자료가 없다보니 이 강의는 정말 귀하네요이런 강의 더 부탁 드립니다^^감사합니다.

2:00 쯤 강의 내용이 이해되지 않아 질문드립니다. MemberRepository repository = new MemoryMemberRepository();위 구문은 MemoryMemberRepository class를import 하지 않았고,롬복을 사용하지도 않았고,같은 package에 있지도 않는데어떻게 MemoryMemberRepository 클래스의 인스턴스 객체인 repository를 생성할 수 있습니까?MemoryMemberRepository 클래스의 접근제어자가 public이여서 가능한걸까요?

[질문 템플릿]1. 강의 내용과 관련된 질문인가요? 예2. 인프런의 질문 게시판과 자주 하는 질문에 없는 내용인가요? 예3. 질문 잘하기 메뉴얼을 읽어보셨나요? 예[질문 내용]java 11로 하라하셔서, jdk 17을 원래 쓰고 있었는데 11을 다시 다운 받긴했는데 그 뒤로 어떻게 적용하는지 잘 모르겠어요. 환경변수도 새로 설정해줘야하나요?스프링부트 설치할 때 자바 버전을 11로 하긴 했는데, sdk에는 17로 돼있는데 sdk도 11로 바꿔야 이상이 없는 건가요? Gradle JVM도 17로 돼있는데 이것도 바꾸나요? 일일이 하나하나 다 11로 고치는 거 맞나요?sdk랑 jvm 말고도 또 바꿔줘야할 부분이 있을까요?

자바스크립트는 오버로딩을 지원하지 않는 걸로 알고 있습니다.useRef가 3가지 경우로 나눠서 사용이 가능한 이유가 궁금합니다.

- 학습 관련 질문을 남겨주세요. 상세히 작성하면 더 좋아요! - 먼저 유사한 질문이 있었는지 검색해보세요. - 서로 예의를 지키며 존중하는 문화를 만들어가요. - 잠깐! 인프런 서비스 운영 관련 문의는 1:1 문의하기를 이용해주세요.안녕하세요 선생님, 비트연산에 아직 익숙치 않아서해당 문제 비트연산 사용안코 풀었습니다. (백트랙킹)https://www.acmicpc.net/source/53040638질문게시판에 있는 반례들은 모두 맞았습니다만, 어떤 문제로 8%에서 계속 틀리고 있는데, 원인을 못찾겠습니다. 반례가 있을까요? 

 시작도 하기 전에 갖가지 오류가 너무 난무해서 슬프네요 ㅠㅠ 왜 그럴까요? ㅠㅠㅠ

안녕하세요 선생님Banner 컴포넌트를 생성하는 과정에서, fetchData를 이용해 TMDB에 데이터를 요청하는 함수가 있는데 요청을 2번 합니다....선생님의 코드를 똑같이 따라쳤는데 왜 2번 requests를 보내는지 궁금합니다.제 코드는 깃허브에 올려두었습니다!https://github.com/gyur1kim/inflearn_react_a-z/blob/master/221219_netflix-clone/src/components/Banner.js