inflearn logo
강의

강의

N
챌린지

챌린지

멘토링

멘토링

N
클립

클립

로드맵

로드맵

지식공유

묻고 답해요

173만명의 커뮤니티!! 함께 토론해봐요.

JPAQueryFactory 빈등록

미해결

실전! Querydsl

JPAQueryFactory를 매번 Repository마다 만들지 않고 빈으로 등록해서 사용하면 안 되나요??

  • JPAQueryFactory
  • JPA
  • java
hwajo0 댓글 1 좋아요 0 조회수 387

thymeleaf, cannot resolve vars 에러 문제

미해결

실전! 스프링 부트와 JPA 활용1 - 웹 애플리케이션 개발

이런식으로 에러가 떠서 구글링을 해보니 다양한 해결책이 있긴한데 그것이 옳은 방식으로 해결되는 것인지 모르겠습니다 <html xmlns: th ="http://www.thymeleaf.org" > 여기에서 www를 삭제하면 th: 라인이 전부 초록색으로 변하면서 에러는 해결되기는 하더라고요 다른 해결 방식이 있을까요?

  • spring
  • spring-boot
  • JPA
  • java
  • 웹앱
스프링링 댓글 4 좋아요 0 조회수 1507

spring 공부 자료에 관해서

미해결

스프링 MVC 1편 - 백엔드 웹 개발 핵심 기술

안녕하세요 강의는 매우 잘 듣고 있습니다. 강사님이 설명해주신 부분에 대해서 개인적으로 더 공부하고 싶은데 혹시 스프링은 참고할만한 사이트가 있을까요? 예를들어 postmapping 같은 경우 https://docs.spring.io/spring-framework/docs/current/javadoc-api/org/springframework/web/bind/annotation/PostMapping.html 구글링하면 이런 사이트가 나오는데 이런 형식 말고 혹시 사용법이나 설명, 예제가 자세한 문서가 있을까요??

  • spring
  • MVC
창완 댓글 2 좋아요 0 조회수 879

데이터베이스 연동관련 문의

해결됨

스프링 입문 - 코드로 배우는 스프링 부트, 웹 MVC, DB 접근 기술

안녕하세요, 강의 잘 듣고 있는 학생입니다. 다름이 아니라 "스프링 통합 테스트"부분에서 기존 메모리에서 진행하던 테스트를 DB랑 연동해서 진행하는 부분에서, 테스트로 진행한 name이 들어가지 않는 중입니다. 테스트 돌릴시 fail은 따로 뜨지 않고, 잘 넘어가는 중입니다. 그리고 id 시퀀스도 하나 증가해서 잘 되는데 name이 등록이 되지 않더라고요. 따로 프로젝트를 실행해서 웹페이지에서 넣으면 문제없이 동작하는 중입니다. (따로 id 시퀀스가 증가가 잘되는 것을 확인한게 웹페이지에서 넣고, 테스트로 돌리고, 다시 웹페이지에서 넣었을시, id가 8,10이 뜨는걸로 확인했습니다.) 어떻게 수정하면 될까요..ㅎ?

  • spring
  • java
  • spring-boot
  • MVC
novah 댓글 4 좋아요 0 조회수 239

세션의 동작원리와 코드에 대해서 질문드립니다

미해결

스프링 MVC 2편 - 백엔드 웹 개발 활용 기술

직접 세션을 만든경우 이런메커니즘으로 이해했습니다. 예를들어 유저a가 처음로그인할경우에 1.세션id 생성 (1234 라고가정) 2.세션store(Map)에 저장(1234,유저a) 3.쿠키생성("mySessionId", 1234) 4.쿠키를 response에 저장후 응답 다시 요청을하면 5. 서버는 클라이언트가 넘겨준 여러개의 쿠키중("mySessionId", 1234) 쿠키를 찾고 6. 서버는 이 쿠키를 가지고 세션store에서 유저a정보를 찾아낸다. 이때 세션이라는게 세션store에 저장된 (key,value)한 쌍을 세션이라고 보는건가요?? 아니면 세션store(Map)자체를 세션이라고 보는건가요? 그리고 HttpSession 이라는 기능을 사용했을때 1. HttpSession session = request.getSession(); 2.session.setAttribute(SessionConst.LOGIN_MEMBER, loginMember); 이 두줄의 코드가 위의 1,2,3,4의 역할을 한다고 보면 되는건가요? 그렇다면 request.getSession()이 세션을 생성하거나 반환하는것과 더불어 세션id를 생성하고 쿠키도 생성하는 역할을 하는건가요? 사실 이것뿐만 아니라 HttpSession기능을 사용하였을때 원리가 머릿속에 그려지지가 않습니다 ㅠㅠ 질문이 많아서 죄송합니다.. 계속 돌려봐도 이해가 잘 되지 않아 질문드립니다

  • MVC
  • spring
박시균 댓글 1 좋아요 3 조회수 812

#ids.seq 질문입니다.

해결됨

스프링 MVC 2편 - 백엔드 웹 개발 활용 기술

공식 문서를 보니 ids에 prev 말고도 seq, next가 있어서 직접 해보았는데 seq를 사용하니 regions2, regions4, regions6으로 나오더라구요. next를 사용하면 regions2, regions3, regions4 순으로 나오구요. 실습대로 prev를 사용하면 regions1, regions2, regions3 순으로 나옵니다. 카운팅이 어떻게 되는지 모르겠습니다. prev면 이전 카운트를 가져오는 것 같아 시작 카운트가 2인가? 생각했는데 next를 보면 아닌 것 같고 seq는 순서대로 증가할 것 같은데 2 단위로 증가하는 걸 보니 헷갈립니다. 공식 문서에도 별다른 설명이 없어 질문드립니다.

  • MVC
  • spring
jeidiiy 댓글 2 좋아요 4 조회수 820

서블릿에서 http 메서드 질문드립니다.

미해결

스프링 MVC 1편 - 백엔드 웹 개발 핵심 기술

Get/Post/Put/Patch 등등 메서드가 여러개 있는데 쿼리파라미터 이용하면 무조건 Get, html form 이용하면 무조건 Post 이런 식으로 메서드가 정해져있는건가요 ? 그리고 서블릿 자체에서는 이것들이 어떻게 들어오는지 인식하고 각각 처리 하는건가요 ? 자바 소스로 따로 put인경우 , get인 경우 등 나눠주지 않았는데 어떻게 인식하는지가 궁금합니ㅏㄷ.

  • spring
  • MVC
댓글 1 좋아요 0 조회수 190

선생님 배포관련 궁금한게 있습니다.

미해결

스프링 MVC 1편 - 백엔드 웹 개발 핵심 기술

배포할때 저는 로컬에서 개발하고 테스트한 후에 리눅스 서버에 환경셋팅하고 개발된 프로젝트를 war로 올려서 톰캣을 실행시키는 방식으로 배포했었는데요. 1. 스프링부트 그래들 jar패키지로 로컬에서 개발을 완료하면 리눅스 서버에 배포할때는 그냥 jar만 옮겨서 실행시키면 되나요? 2. 톰캣을 내렷다 올리는 작업같은 경우는 어떤식으로 하는건가요? 질문이 아직 모르는게 너무 많네요 열심히하겠습니다ㅠㅠ

  • MVC
  • spring
궁콘이 댓글 1 좋아요 2 조회수 629

강의 내용중 이미지 파일 출력 핸들러 메소드의 보안적 문제 언급에 대한 질문입니다.

해결됨

스프링 MVC 2편 - 백엔드 웹 개발 활용 기술

안녕하세요. 이번 강의 내용에서 이미지 출력 처리에 있어서는 여러 방법 중 UrlResource를 사용하여 처리하는 과정을 볼 수 있었습니다. @ResponseBody @GetMapping ( " /images/{filename} " ) public Resource downloadImage ( @PathVariable String filename ) throws MalformedURLException { return new UrlResource ( "file:" + fileStore . getFullPath ( filename )) ; } 다만, 32:25 부분에서 "위 코드 만으로는 보안에 취약해 보일 수 있으니, 여러 체크 기능을 넣는 것이 좋다"라고 언급하신 부분에 대해 어떤 부분이 보안에 취약할까 생각하던 중 도무지 생각나질 않아서 좀 더 구체적인 내용을 얻어갈 수 있을까 해서 질문드립니다. 보안 이슈에 대한 설명만 해주셔도, 취약점 체크를 위한 코딩에 도움이 될 것 같습니다. 미리 답변 감사드립니다.

  • 스프링
  • spring
  • mvc
  • MVC
Henu 댓글 1 좋아요 3 조회수 291

프록시 관련해서 질문 있습니다.

미해결

자바 ORM 표준 JPA 프로그래밍 - 기본편

안녕하세요! 강사님께서 em.clear를 한순간 끈건 아니지만 영속석 컨텍스트안에 완전히 다 지우고 새로 만든거라고 하셨는데 refMember.getUserName();을 한 순간에 DB를 조회해서 쿼리가 나가서 해당 클래스가 영속성 컨텍스안에 들어가는걸로 알고 있습니다. 근데 아직 DB 조회를 하기전( refMember.getUsername()을 하기전 )이라 영속성 컨텍스트안에 해당 클래스가 없는거 아닌가요? 항상 강의 잘보고있습니다 . 감사합니다!!

  • 질문
  • java
  • JPA
gmlwjd4667 댓글 1 좋아요 0 조회수 183

repository은 트랜젝션이 기본인가요?

미해결

실전! 스프링 부트와 JPA 활용2 - API 개발과 성능 최적화

예전에는 service단에서 trasaction을 걸어서 했었는데 repository에 기본적으로 @trasantional이 적용되어있나요?? 그렇기 때문에 db에서 쿼리를 해올수잇는건지 궁금합니다 ㅎㅎ 추가적으로 repository에 transation이 걸려있다면 왜 service 클래스에 이중으로 @trasational 어노테이션을 거는건가요?

  • spring-boot
  • java
  • spring
  • JPA
원석나 댓글 1 좋아요 1 조회수 2426

@Id 자료형 질문

해결됨

자바 ORM 표준 JPA 프로그래밍 - 기본편

[기본 키 맵핑] 7분 55초 int가 애매하다고 하신후 이후에 말씀하신 부분이 잘 안들려서 이해를 못했습니다. 어떤 말씀을 하신건지 다시한번 알려주실 수 있을까요?

  • java
  • JPA
창신동 장첸 댓글 1 좋아요 1 조회수 369

th:field

미해결

스프링 MVC 2편 - 백엔드 웹 개발 활용 기술

안녕하세요 등록지역 코드에 대해 질문하나 하겠습니다. <div> <div>등록 지역</div> <div th:each="region : ${regions}" class="form-check form-check-inline"> <input type="checkbox" th:field="${item.regions}" th:value="${region.key}" class="form-check-input"> <label th:for="${#ids.prev('regions')}" th:text="${region.value}" class="form-check-label">서울</label> </div> </div> ============================================= 이 코드에서 th:field="${item.regions}" 이 속성은 id,name,value 를 세팅을 해주는데 이 등록 지역 코드는 value를 별도로 또 지정해주셨더라구요 이 의미는 id,name 은 th:field="${item.regions}" 이걸로 세팅을 하고 value는 컨트롤러에서 담은 @ModelAttribute("regions") 값으로 쓰겠다는의미이구 이는 value 직접 지정해주면 우선순위가 더 높아서 세팅이 되는거구요.. 제가 이해한게맞나요 ? .......................... 끝으로 자동으로 checked 해주는 기능 대박이네요.. 좋은 설명 항상 감사합니다

  • spring
  • MVC
기팝 댓글 1 좋아요 5 조회수 692

인코딩 문제

미해결

스프링 MVC 2편 - 백엔드 웹 개발 활용 기술

addItemV3를 따라하다가 상품 등록은 괜찮은데 error메세지만 문자가 깨지는 일이 발생합니다. 설정도 validation 프로젝트 받아서 열었더니 차이가 없었는데 뭐가 문제인지 알고 싶습니다. 인코딩 설정을 어떻게 해줘야 깨지지 않을까요

  • 한글깨짐
  • spring
  • MVC
토토리 댓글 7 좋아요 0 조회수 1424

beans.xml 설정시

미해결

윤재성의 스프링 프레임워크 개발자를 위한 실습을 통한 입문 과정

안녕하세요 xml설정시 org.springframework.beans.factory.xml. XmlBeanDefinitionStoreException : 에러가 나서 해결하던중 <beans xmlns="http://www.springframwork.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd"> </beans> 를 <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd"> </beans> 와 같이 spring-beans-3.0.xsd 설정해주니 에러가 안나는 이유가 궁금합니다. 처음에는 오타문제인줄 알았으나 오타는 없었습니다.

  • java
  • spring
alclsloo 댓글 2 좋아요 0 조회수 1787

Whitelabel Error Page 에러

해결됨

스프링 입문 - 코드로 배우는 스프링 부트, 웹 MVC, DB 접근 기술

h2 데이터베이스에는 값이 제대로 들어가 있는데 회원 목록에 들어가면 오류가 뜨네요.. 그래서 회원 가입에서 등록한 값은 값이 제대로 들어오는 지 확인하려 하니 등록 버튼을 누르면 똑같이 Whitelabel Error Page 가 뜹니다.. 재부팅, db 삭제 후 재생성, 8080 포트 삭제 후 재시작, gradle 리프레쉬, 질문 확인, 코드 재확인 등 여러가지 시도해봤지만 해결이 되지 않아 질문드립니다ㅠㅠㅠ <오류 코드> org.h2.jdbc.JdbcSQLNonTransientConnectionException: Database may be already in use: null. Possible solutions: close all other connection(s); use the server mode [90020-200] at org.h2.message.DbException.getJdbcSQLException(DbException.java:622) ~[h2-1.4.200.jar:1.4.200] at org.h2.message.DbException.getJdbcSQLException(DbException.java:429) ~[h2-1.4.200.jar:1.4.200] at org.h2.message.DbException.get(DbException.java:194) ~[h2-1.4.200.jar:1.4.200] at org.h2.mvstore.db.MVTableEngine$Store.convertIllegalStateException(MVTableEngine.java:206) ~[h2-1.4.200.jar:1.4.200] at org.h2.mvstore.db.MVTableEngine$Store.open(MVTableEngine.java:182) ~[h2-1.4.200.jar:1.4.200] at org.h2.mvstore.db.MVTableEngine.init(MVTableEngine.java:103) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Database.getPageStore(Database.java:2659) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Database.open(Database.java:675) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Database.openDatabase(Database.java:307) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Database.<init>(Database.java:301) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Engine.openSession(Engine.java:74) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Engine.openSession(Engine.java:192) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Engine.createSessionAndValidate(Engine.java:171) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Engine.createSession(Engine.java:166) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Engine.createSession(Engine.java:29) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.SessionRemote.connectEmbeddedOrServer(SessionRemote.java:340) ~[h2-1.4.200.jar:1.4.200] at org.h2.jdbc.JdbcConnection.<init>(JdbcConnection.java:173) ~[h2-1.4.200.jar:1.4.200] at org.h2.jdbc.JdbcConnection.<init>(JdbcConnection.java:152) ~[h2-1.4.200.jar:1.4.200] at org.h2.Driver.connect(Driver.java:69) ~[h2-1.4.200.jar:1.4.200] 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.springframework.jdbc.datasource.DataSourceUtils.fetchConnection(DataSourceUtils.java:158) ~[spring-jdbc-5.3.8.jar:5.3.8] at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:116) ~[spring-jdbc-5.3.8.jar:5.3.8] at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:79) ~[spring-jdbc-5.3.8.jar:5.3.8] at spring.springintroduction.repository.JdbcMemberRepository.getConnection(JdbcMemberRepository.java:138) ~[classes/:na] at spring.springintroduction.repository.JdbcMemberRepository.findByName(JdbcMemberRepository.java:117) ~[classes/:na] at spring.springintroduction.service.MemberService.validateDuplicateMember(MemberService.java:30) ~[classes/:na] at spring.springintroduction.service.MemberService.join(MemberService.java:23) ~[classes/:na] at spring.springintroduction.controller.MemberController.create(MemberController.java:33) ~[classes/:na] at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na] at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:na] at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na] at java.base/java.lang.reflect.Method.invoke(Method.java:566) ~[na:na] at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:197) ~[spring-web-5.3.8.jar:5.3.8] at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:141) ~[spring-web-5.3.8.jar:5.3.8] at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:106) ~[spring-webmvc-5.3.8.jar:5.3.8] at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:894) ~[spring-webmvc-5.3.8.jar:5.3.8] at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:808) ~[spring-webmvc-5.3.8.jar:5.3.8] at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-5.3.8.jar:5.3.8] at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1063) ~[spring-webmvc-5.3.8.jar:5.3.8] at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:963) ~[spring-webmvc-5.3.8.jar:5.3.8] at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) ~[spring-webmvc-5.3.8.jar:5.3.8] at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:909) ~[spring-webmvc-5.3.8.jar:5.3.8] at javax.servlet.http.HttpServlet.service(HttpServlet.java:681) ~[tomcat-embed-core-9.0.48.jar:4.0.FR] at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) ~[spring-webmvc-5.3.8.jar:5.3.8] at javax.servlet.http.HttpServlet.service(HttpServlet.java:764) ~[tomcat-embed-core-9.0.48.jar:4.0.FR] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:228) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) ~[tomcat-embed-websocket-9.0.48.jar:9.0.48] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:190) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-5.3.8.jar:5.3.8] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.8.jar:5.3.8] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:190) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[spring-web-5.3.8.jar:5.3.8] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.8.jar:5.3.8] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:190) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-5.3.8.jar:5.3.8] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.8.jar:5.3.8] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:190) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:542) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:143) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:357) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:382) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:893) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1723) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) ~[na:na] at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) ~[na:na] at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at java.base/java.lang.Thread.run(Thread.java:834) ~[na:na] Caused by: java.lang.IllegalStateException: The file is locked: nio:C:/Users/hikar/Documents/H2/Spring-introduction.mv.db [1.4.200/7] at org.h2.mvstore.DataUtils.newIllegalStateException(DataUtils.java:950) ~[h2-1.4.200.jar:1.4.200] at org.h2.mvstore.FileStore.open(FileStore.java:172) ~[h2-1.4.200.jar:1.4.200] at org.h2.mvstore.MVStore.<init>(MVStore.java:381) ~[h2-1.4.200.jar:1.4.200] at org.h2.mvstore.MVStore$Builder.open(MVStore.java:3579) ~[h2-1.4.200.jar:1.4.200] at org.h2.mvstore.db.MVTableEngine$Store.open(MVTableEngine.java:170) ~[h2-1.4.200.jar:1.4.200] ... 79 common frames omitted 2021-07-31 15:19:52.530 ERROR 8400 --- [nio-8080-exec-6] o.a.c.c.C.[.[.[/].[dispatcherServlet] : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is java.lang.IllegalStateException: org.springframework.jdbc.CannotGetJdbcConnectionException: Failed to obtain JDBC Connection; nested exception is org.h2.jdbc.JdbcSQLNonTransientConnectionException: Database may be already in use: null. Possible solutions: close all other connection(s); use the server mode [90020-200]] with root cause java.lang.IllegalStateException: The file is locked: nio:C:/Users/hikar/Documents/H2/Spring-introduction.mv.db [1.4.200/7] at org.h2.mvstore.DataUtils.newIllegalStateException(DataUtils.java:950) ~[h2-1.4.200.jar:1.4.200] at org.h2.mvstore.FileStore.open(FileStore.java:172) ~[h2-1.4.200.jar:1.4.200] at org.h2.mvstore.MVStore.<init>(MVStore.java:381) ~[h2-1.4.200.jar:1.4.200] at org.h2.mvstore.MVStore$Builder.open(MVStore.java:3579) ~[h2-1.4.200.jar:1.4.200] at org.h2.mvstore.db.MVTableEngine$Store.open(MVTableEngine.java:170) ~[h2-1.4.200.jar:1.4.200] at org.h2.mvstore.db.MVTableEngine.init(MVTableEngine.java:103) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Database.getPageStore(Database.java:2659) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Database.open(Database.java:675) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Database.openDatabase(Database.java:307) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Database.<init>(Database.java:301) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Engine.openSession(Engine.java:74) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Engine.openSession(Engine.java:192) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Engine.createSessionAndValidate(Engine.java:171) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Engine.createSession(Engine.java:166) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Engine.createSession(Engine.java:29) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.SessionRemote.connectEmbeddedOrServer(SessionRemote.java:340) ~[h2-1.4.200.jar:1.4.200] at org.h2.jdbc.JdbcConnection.<init>(JdbcConnection.java:173) ~[h2-1.4.200.jar:1.4.200] at org.h2.jdbc.JdbcConnection.<init>(JdbcConnection.java:152) ~[h2-1.4.200.jar:1.4.200] at org.h2.Driver.connect(Driver.java:69) ~[h2-1.4.200.jar:1.4.200] 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.springframework.jdbc.datasource.DataSourceUtils.fetchConnection(DataSourceUtils.java:158) ~[spring-jdbc-5.3.8.jar:5.3.8] at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:116) ~[spring-jdbc-5.3.8.jar:5.3.8] at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:79) ~[spring-jdbc-5.3.8.jar:5.3.8] at spring.springintroduction.repository.JdbcMemberRepository.getConnection(JdbcMemberRepository.java:138) ~[classes/:na] at spring.springintroduction.repository.JdbcMemberRepository.findByName(JdbcMemberRepository.java:117) ~[classes/:na] at spring.springintroduction.service.MemberService.validateDuplicateMember(MemberService.java:30) ~[classes/:na] at spring.springintroduction.service.MemberService.join(MemberService.java:23) ~[classes/:na] at spring.springintroduction.controller.MemberController.create(MemberController.java:33) ~[classes/:na] at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na] at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:na] at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na] at java.base/java.lang.reflect.Method.invoke(Method.java:566) ~[na:na] at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:197) ~[spring-web-5.3.8.jar:5.3.8] at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:141) ~[spring-web-5.3.8.jar:5.3.8] at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:106) ~[spring-webmvc-5.3.8.jar:5.3.8] at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:894) ~[spring-webmvc-5.3.8.jar:5.3.8] at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:808) ~[spring-webmvc-5.3.8.jar:5.3.8] at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-5.3.8.jar:5.3.8] at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1063) ~[spring-webmvc-5.3.8.jar:5.3.8] at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:963) ~[spring-webmvc-5.3.8.jar:5.3.8] at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) ~[spring-webmvc-5.3.8.jar:5.3.8] at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:909) ~[spring-webmvc-5.3.8.jar:5.3.8] at javax.servlet.http.HttpServlet.service(HttpServlet.java:681) ~[tomcat-embed-core-9.0.48.jar:4.0.FR] at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) ~[spring-webmvc-5.3.8.jar:5.3.8] at javax.servlet.http.HttpServlet.service(HttpServlet.java:764) ~[tomcat-embed-core-9.0.48.jar:4.0.FR] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:228) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) ~[tomcat-embed-websocket-9.0.48.jar:9.0.48] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:190) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-5.3.8.jar:5.3.8] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.8.jar:5.3.8] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:190) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[spring-web-5.3.8.jar:5.3.8] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.8.jar:5.3.8] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:190) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-5.3.8.jar:5.3.8] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.8.jar:5.3.8] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:190) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:542) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:143) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:357) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:382) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:893) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1723) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) ~[na:na] at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) ~[na:na] at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at java.base/java.lang.Thread.run(Thread.java:834) ~[na:na] 2021-07-31 15:24:32.787 INFO 8400 --- [nio-8080-exec-4] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Starting... 2021-07-31 15:24:33.820 ERROR 8400 --- [nio-8080-exec-4] com.zaxxer.hikari.pool.HikariPool : HikariPool-1 - Exception during pool initialization. org.h2.jdbc.JdbcSQLNonTransientConnectionException: Database may be already in use: null. Possible solutions: close all other connection(s); use the server mode [90020-200] at org.h2.message.DbException.getJdbcSQLException(DbException.java:622) ~[h2-1.4.200.jar:1.4.200] at org.h2.message.DbException.getJdbcSQLException(DbException.java:429) ~[h2-1.4.200.jar:1.4.200] at org.h2.message.DbException.get(DbException.java:194) ~[h2-1.4.200.jar:1.4.200] at org.h2.mvstore.db.MVTableEngine$Store.convertIllegalStateException(MVTableEngine.java:206) ~[h2-1.4.200.jar:1.4.200] at org.h2.mvstore.db.MVTableEngine$Store.open(MVTableEngine.java:182) ~[h2-1.4.200.jar:1.4.200] at org.h2.mvstore.db.MVTableEngine.init(MVTableEngine.java:103) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Database.getPageStore(Database.java:2659) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Database.open(Database.java:675) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Database.openDatabase(Database.java:307) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Database.<init>(Database.java:301) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Engine.openSession(Engine.java:74) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Engine.openSession(Engine.java:192) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Engine.createSessionAndValidate(Engine.java:171) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Engine.createSession(Engine.java:166) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Engine.createSession(Engine.java:29) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.SessionRemote.connectEmbeddedOrServer(SessionRemote.java:340) ~[h2-1.4.200.jar:1.4.200] at org.h2.jdbc.JdbcConnection.<init>(JdbcConnection.java:173) ~[h2-1.4.200.jar:1.4.200] at org.h2.jdbc.JdbcConnection.<init>(JdbcConnection.java:152) ~[h2-1.4.200.jar:1.4.200] at org.h2.Driver.connect(Driver.java:69) ~[h2-1.4.200.jar:1.4.200] 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.springframework.jdbc.datasource.DataSourceUtils.fetchConnection(DataSourceUtils.java:158) ~[spring-jdbc-5.3.8.jar:5.3.8] at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:116) ~[spring-jdbc-5.3.8.jar:5.3.8] at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:79) ~[spring-jdbc-5.3.8.jar:5.3.8] at spring.springintroduction.repository.JdbcMemberRepository.getConnection(JdbcMemberRepository.java:138) ~[classes/:na] at spring.springintroduction.repository.JdbcMemberRepository.findAll(JdbcMemberRepository.java:90) ~[classes/:na] at spring.springintroduction.service.MemberService.findMembers(MemberService.java:37) ~[classes/:na] at spring.springintroduction.controller.MemberController.list(MemberController.java:40) ~[classes/:na] at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na] at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:na] at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na] at java.base/java.lang.reflect.Method.invoke(Method.java:566) ~[na:na] at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:197) ~[spring-web-5.3.8.jar:5.3.8] at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:141) ~[spring-web-5.3.8.jar:5.3.8] at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:106) ~[spring-webmvc-5.3.8.jar:5.3.8] at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:894) ~[spring-webmvc-5.3.8.jar:5.3.8] at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:808) ~[spring-webmvc-5.3.8.jar:5.3.8] at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-5.3.8.jar:5.3.8] at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1063) ~[spring-webmvc-5.3.8.jar:5.3.8] at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:963) ~[spring-webmvc-5.3.8.jar:5.3.8] at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) ~[spring-webmvc-5.3.8.jar:5.3.8] at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898) ~[spring-webmvc-5.3.8.jar:5.3.8] at javax.servlet.http.HttpServlet.service(HttpServlet.java:655) ~[tomcat-embed-core-9.0.48.jar:4.0.FR] at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) ~[spring-webmvc-5.3.8.jar:5.3.8] at javax.servlet.http.HttpServlet.service(HttpServlet.java:764) ~[tomcat-embed-core-9.0.48.jar:4.0.FR] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:228) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) ~[tomcat-embed-websocket-9.0.48.jar:9.0.48] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:190) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-5.3.8.jar:5.3.8] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.8.jar:5.3.8] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:190) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[spring-web-5.3.8.jar:5.3.8] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.8.jar:5.3.8] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:190) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-5.3.8.jar:5.3.8] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.8.jar:5.3.8] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:190) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:542) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:143) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:357) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:382) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:893) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1723) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) ~[na:na] at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) ~[na:na] at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at java.base/java.lang.Thread.run(Thread.java:834) ~[na:na] Caused by: java.lang.IllegalStateException: The file is locked: nio:C:/Users/hikar/Documents/H2/Spring-introduction.mv.db [1.4.200/7] at org.h2.mvstore.DataUtils.newIllegalStateException(DataUtils.java:950) ~[h2-1.4.200.jar:1.4.200] at org.h2.mvstore.FileStore.open(FileStore.java:172) ~[h2-1.4.200.jar:1.4.200] at org.h2.mvstore.MVStore.<init>(MVStore.java:381) ~[h2-1.4.200.jar:1.4.200] at org.h2.mvstore.MVStore$Builder.open(MVStore.java:3579) ~[h2-1.4.200.jar:1.4.200] at org.h2.mvstore.db.MVTableEngine$Store.open(MVTableEngine.java:170) ~[h2-1.4.200.jar:1.4.200] ... 78 common frames omitted 2021-07-31 15:24:33.823 ERROR 8400 --- [nio-8080-exec-4] o.a.c.c.C.[.[.[/].[dispatcherServlet] : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is java.lang.IllegalStateException: org.springframework.jdbc.CannotGetJdbcConnectionException: Failed to obtain JDBC Connection; nested exception is org.h2.jdbc.JdbcSQLNonTransientConnectionException: Database may be already in use: null. Possible solutions: close all other connection(s); use the server mode [90020-200]] with root cause java.lang.IllegalStateException: The file is locked: nio:C:/Users/hikar/Documents/H2/Spring-introduction.mv.db [1.4.200/7] at org.h2.mvstore.DataUtils.newIllegalStateException(DataUtils.java:950) ~[h2-1.4.200.jar:1.4.200] at org.h2.mvstore.FileStore.open(FileStore.java:172) ~[h2-1.4.200.jar:1.4.200] at org.h2.mvstore.MVStore.<init>(MVStore.java:381) ~[h2-1.4.200.jar:1.4.200] at org.h2.mvstore.MVStore$Builder.open(MVStore.java:3579) ~[h2-1.4.200.jar:1.4.200] at org.h2.mvstore.db.MVTableEngine$Store.open(MVTableEngine.java:170) ~[h2-1.4.200.jar:1.4.200] at org.h2.mvstore.db.MVTableEngine.init(MVTableEngine.java:103) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Database.getPageStore(Database.java:2659) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Database.open(Database.java:675) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Database.openDatabase(Database.java:307) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Database.<init>(Database.java:301) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Engine.openSession(Engine.java:74) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Engine.openSession(Engine.java:192) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Engine.createSessionAndValidate(Engine.java:171) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Engine.createSession(Engine.java:166) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Engine.createSession(Engine.java:29) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.SessionRemote.connectEmbeddedOrServer(SessionRemote.java:340) ~[h2-1.4.200.jar:1.4.200] at org.h2.jdbc.JdbcConnection.<init>(JdbcConnection.java:173) ~[h2-1.4.200.jar:1.4.200] at org.h2.jdbc.JdbcConnection.<init>(JdbcConnection.java:152) ~[h2-1.4.200.jar:1.4.200] at org.h2.Driver.connect(Driver.java:69) ~[h2-1.4.200.jar:1.4.200] 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.springframework.jdbc.datasource.DataSourceUtils.fetchConnection(DataSourceUtils.java:158) ~[spring-jdbc-5.3.8.jar:5.3.8] at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:116) ~[spring-jdbc-5.3.8.jar:5.3.8] at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:79) ~[spring-jdbc-5.3.8.jar:5.3.8] at spring.springintroduction.repository.JdbcMemberRepository.getConnection(JdbcMemberRepository.java:138) ~[classes/:na] at spring.springintroduction.repository.JdbcMemberRepository.findAll(JdbcMemberRepository.java:90) ~[classes/:na] at spring.springintroduction.service.MemberService.findMembers(MemberService.java:37) ~[classes/:na] at spring.springintroduction.controller.MemberController.list(MemberController.java:40) ~[classes/:na] at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na] at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:na] at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na] at java.base/java.lang.reflect.Method.invoke(Method.java:566) ~[na:na] at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:197) ~[spring-web-5.3.8.jar:5.3.8] at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:141) ~[spring-web-5.3.8.jar:5.3.8] at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:106) ~[spring-webmvc-5.3.8.jar:5.3.8] at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:894) ~[spring-webmvc-5.3.8.jar:5.3.8] at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:808) ~[spring-webmvc-5.3.8.jar:5.3.8] at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-5.3.8.jar:5.3.8] at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1063) ~[spring-webmvc-5.3.8.jar:5.3.8] at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:963) ~[spring-webmvc-5.3.8.jar:5.3.8] at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) ~[spring-webmvc-5.3.8.jar:5.3.8] at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898) ~[spring-webmvc-5.3.8.jar:5.3.8] at javax.servlet.http.HttpServlet.service(HttpServlet.java:655) ~[tomcat-embed-core-9.0.48.jar:4.0.FR] at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) ~[spring-webmvc-5.3.8.jar:5.3.8] at javax.servlet.http.HttpServlet.service(HttpServlet.java:764) ~[tomcat-embed-core-9.0.48.jar:4.0.FR] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:228) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) ~[tomcat-embed-websocket-9.0.48.jar:9.0.48] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:190) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-5.3.8.jar:5.3.8] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.8.jar:5.3.8] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:190) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[spring-web-5.3.8.jar:5.3.8] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.8.jar:5.3.8] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:190) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-5.3.8.jar:5.3.8] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.8.jar:5.3.8] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:190) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:542) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:143) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:357) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:382) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:893) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1723) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) ~[na:na] at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) ~[na:na] at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at java.base/java.lang.Thread.run(Thread.java:834) ~[na:na] 2021-07-31 15:33:27.987 INFO 8400 --- [nio-8080-exec-8] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Starting... 2021-07-31 15:33:29.015 ERROR 8400 --- [nio-8080-exec-8] com.zaxxer.hikari.pool.HikariPool : HikariPool-1 - Exception during pool initialization. org.h2.jdbc.JdbcSQLNonTransientConnectionException: Database may be already in use: null. Possible solutions: close all other connection(s); use the server mode [90020-200] at org.h2.message.DbException.getJdbcSQLException(DbException.java:622) ~[h2-1.4.200.jar:1.4.200] at org.h2.message.DbException.getJdbcSQLException(DbException.java:429) ~[h2-1.4.200.jar:1.4.200] at org.h2.message.DbException.get(DbException.java:194) ~[h2-1.4.200.jar:1.4.200] at org.h2.mvstore.db.MVTableEngine$Store.convertIllegalStateException(MVTableEngine.java:206) ~[h2-1.4.200.jar:1.4.200] at org.h2.mvstore.db.MVTableEngine$Store.open(MVTableEngine.java:182) ~[h2-1.4.200.jar:1.4.200] at org.h2.mvstore.db.MVTableEngine.init(MVTableEngine.java:103) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Database.getPageStore(Database.java:2659) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Database.open(Database.java:675) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Database.openDatabase(Database.java:307) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Database.<init>(Database.java:301) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Engine.openSession(Engine.java:74) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Engine.openSession(Engine.java:192) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Engine.createSessionAndValidate(Engine.java:171) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Engine.createSession(Engine.java:166) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Engine.createSession(Engine.java:29) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.SessionRemote.connectEmbeddedOrServer(SessionRemote.java:340) ~[h2-1.4.200.jar:1.4.200] at org.h2.jdbc.JdbcConnection.<init>(JdbcConnection.java:173) ~[h2-1.4.200.jar:1.4.200] at org.h2.jdbc.JdbcConnection.<init>(JdbcConnection.java:152) ~[h2-1.4.200.jar:1.4.200] at org.h2.Driver.connect(Driver.java:69) ~[h2-1.4.200.jar:1.4.200] 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.springframework.jdbc.datasource.DataSourceUtils.fetchConnection(DataSourceUtils.java:158) ~[spring-jdbc-5.3.8.jar:5.3.8] at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:116) ~[spring-jdbc-5.3.8.jar:5.3.8] at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:79) ~[spring-jdbc-5.3.8.jar:5.3.8] at spring.springintroduction.repository.JdbcMemberRepository.getConnection(JdbcMemberRepository.java:138) ~[classes/:na] at spring.springintroduction.repository.JdbcMemberRepository.findByName(JdbcMemberRepository.java:117) ~[classes/:na] at spring.springintroduction.service.MemberService.validateDuplicateMember(MemberService.java:30) ~[classes/:na] at spring.springintroduction.service.MemberService.join(MemberService.java:23) ~[classes/:na] at spring.springintroduction.controller.MemberController.create(MemberController.java:33) ~[classes/:na] at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na] at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:na] at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na] at java.base/java.lang.reflect.Method.invoke(Method.java:566) ~[na:na] at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:197) ~[spring-web-5.3.8.jar:5.3.8] at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:141) ~[spring-web-5.3.8.jar:5.3.8] at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:106) ~[spring-webmvc-5.3.8.jar:5.3.8] at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:894) ~[spring-webmvc-5.3.8.jar:5.3.8] at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:808) ~[spring-webmvc-5.3.8.jar:5.3.8] at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-5.3.8.jar:5.3.8] at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1063) ~[spring-webmvc-5.3.8.jar:5.3.8] at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:963) ~[spring-webmvc-5.3.8.jar:5.3.8] at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) ~[spring-webmvc-5.3.8.jar:5.3.8] at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:909) ~[spring-webmvc-5.3.8.jar:5.3.8] at javax.servlet.http.HttpServlet.service(HttpServlet.java:681) ~[tomcat-embed-core-9.0.48.jar:4.0.FR] at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) ~[spring-webmvc-5.3.8.jar:5.3.8] at javax.servlet.http.HttpServlet.service(HttpServlet.java:764) ~[tomcat-embed-core-9.0.48.jar:4.0.FR] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:228) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) ~[tomcat-embed-websocket-9.0.48.jar:9.0.48] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:190) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-5.3.8.jar:5.3.8] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.8.jar:5.3.8] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:190) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[spring-web-5.3.8.jar:5.3.8] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.8.jar:5.3.8] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:190) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-5.3.8.jar:5.3.8] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.8.jar:5.3.8] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:190) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:542) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:143) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:357) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:382) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:893) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1723) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) ~[na:na] at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) ~[na:na] at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at java.base/java.lang.Thread.run(Thread.java:834) ~[na:na] Caused by: java.lang.IllegalStateException: The file is locked: nio:C:/Users/hikar/Documents/H2/Spring-introduction.mv.db [1.4.200/7] at org.h2.mvstore.DataUtils.newIllegalStateException(DataUtils.java:950) ~[h2-1.4.200.jar:1.4.200] at org.h2.mvstore.FileStore.open(FileStore.java:172) ~[h2-1.4.200.jar:1.4.200] at org.h2.mvstore.MVStore.<init>(MVStore.java:381) ~[h2-1.4.200.jar:1.4.200] at org.h2.mvstore.MVStore$Builder.open(MVStore.java:3579) ~[h2-1.4.200.jar:1.4.200] at org.h2.mvstore.db.MVTableEngine$Store.open(MVTableEngine.java:170) ~[h2-1.4.200.jar:1.4.200] ... 79 common frames omitted 2021-07-31 15:33:29.017 ERROR 8400 --- [nio-8080-exec-8] o.a.c.c.C.[.[.[/].[dispatcherServlet] : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is java.lang.IllegalStateException: org.springframework.jdbc.CannotGetJdbcConnectionException: Failed to obtain JDBC Connection; nested exception is org.h2.jdbc.JdbcSQLNonTransientConnectionException: Database may be already in use: null. Possible solutions: close all other connection(s); use the server mode [90020-200]] with root cause java.lang.IllegalStateException: The file is locked: nio:C:/Users/hikar/Documents/H2/Spring-introduction.mv.db [1.4.200/7] at org.h2.mvstore.DataUtils.newIllegalStateException(DataUtils.java:950) ~[h2-1.4.200.jar:1.4.200] at org.h2.mvstore.FileStore.open(FileStore.java:172) ~[h2-1.4.200.jar:1.4.200] at org.h2.mvstore.MVStore.<init>(MVStore.java:381) ~[h2-1.4.200.jar:1.4.200] at org.h2.mvstore.MVStore$Builder.open(MVStore.java:3579) ~[h2-1.4.200.jar:1.4.200] at org.h2.mvstore.db.MVTableEngine$Store.open(MVTableEngine.java:170) ~[h2-1.4.200.jar:1.4.200] at org.h2.mvstore.db.MVTableEngine.init(MVTableEngine.java:103) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Database.getPageStore(Database.java:2659) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Database.open(Database.java:675) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Database.openDatabase(Database.java:307) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Database.<init>(Database.java:301) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Engine.openSession(Engine.java:74) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Engine.openSession(Engine.java:192) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Engine.createSessionAndValidate(Engine.java:171) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Engine.createSession(Engine.java:166) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Engine.createSession(Engine.java:29) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.SessionRemote.connectEmbeddedOrServer(SessionRemote.java:340) ~[h2-1.4.200.jar:1.4.200] at org.h2.jdbc.JdbcConnection.<init>(JdbcConnection.java:173) ~[h2-1.4.200.jar:1.4.200] at org.h2.jdbc.JdbcConnection.<init>(JdbcConnection.java:152) ~[h2-1.4.200.jar:1.4.200] at org.h2.Driver.connect(Driver.java:69) ~[h2-1.4.200.jar:1.4.200] 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.springframework.jdbc.datasource.DataSourceUtils.fetchConnection(DataSourceUtils.java:158) ~[spring-jdbc-5.3.8.jar:5.3.8] at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:116) ~[spring-jdbc-5.3.8.jar:5.3.8] at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:79) ~[spring-jdbc-5.3.8.jar:5.3.8] at spring.springintroduction.repository.JdbcMemberRepository.getConnection(JdbcMemberRepository.java:138) ~[classes/:na] at spring.springintroduction.repository.JdbcMemberRepository.findByName(JdbcMemberRepository.java:117) ~[classes/:na] at spring.springintroduction.service.MemberService.validateDuplicateMember(MemberService.java:30) ~[classes/:na] at spring.springintroduction.service.MemberService.join(MemberService.java:23) ~[classes/:na] at spring.springintroduction.controller.MemberController.create(MemberController.java:33) ~[classes/:na] at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na] at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:na] at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na] at java.base/java.lang.reflect.Method.invoke(Method.java:566) ~[na:na] at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:197) ~[spring-web-5.3.8.jar:5.3.8] at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:141) ~[spring-web-5.3.8.jar:5.3.8] at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:106) ~[spring-webmvc-5.3.8.jar:5.3.8] at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:894) ~[spring-webmvc-5.3.8.jar:5.3.8] at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:808) ~[spring-webmvc-5.3.8.jar:5.3.8] at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-5.3.8.jar:5.3.8] at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1063) ~[spring-webmvc-5.3.8.jar:5.3.8] at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:963) ~[spring-webmvc-5.3.8.jar:5.3.8] at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) ~[spring-webmvc-5.3.8.jar:5.3.8] at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:909) ~[spring-webmvc-5.3.8.jar:5.3.8] at javax.servlet.http.HttpServlet.service(HttpServlet.java:681) ~[tomcat-embed-core-9.0.48.jar:4.0.FR] at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) ~[spring-webmvc-5.3.8.jar:5.3.8] at javax.servlet.http.HttpServlet.service(HttpServlet.java:764) ~[tomcat-embed-core-9.0.48.jar:4.0.FR] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:228) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) ~[tomcat-embed-websocket-9.0.48.jar:9.0.48] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:190) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-5.3.8.jar:5.3.8] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.8.jar:5.3.8] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:190) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[spring-web-5.3.8.jar:5.3.8] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.8.jar:5.3.8] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:190) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-5.3.8.jar:5.3.8] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.8.jar:5.3.8] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:190) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:542) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:143) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:357) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:382) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:893) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1723) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) ~[na:na] at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) ~[na:na] at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at java.base/java.lang.Thread.run(Thread.java:834) ~[na:na] 2021-07-31 15:33:57.540 INFO 8400 --- [nio-8080-exec-3] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Starting... 2021-07-31 15:33:58.566 ERROR 8400 --- [nio-8080-exec-3] com.zaxxer.hikari.pool.HikariPool : HikariPool-1 - Exception during pool initialization. org.h2.jdbc.JdbcSQLNonTransientConnectionException: Database may be already in use: null. Possible solutions: close all other connection(s); use the server mode [90020-200] at org.h2.message.DbException.getJdbcSQLException(DbException.java:622) ~[h2-1.4.200.jar:1.4.200] at org.h2.message.DbException.getJdbcSQLException(DbException.java:429) ~[h2-1.4.200.jar:1.4.200] at org.h2.message.DbException.get(DbException.java:194) ~[h2-1.4.200.jar:1.4.200] at org.h2.mvstore.db.MVTableEngine$Store.convertIllegalStateException(MVTableEngine.java:206) ~[h2-1.4.200.jar:1.4.200] at org.h2.mvstore.db.MVTableEngine$Store.open(MVTableEngine.java:182) ~[h2-1.4.200.jar:1.4.200] at org.h2.mvstore.db.MVTableEngine.init(MVTableEngine.java:103) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Database.getPageStore(Database.java:2659) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Database.open(Database.java:675) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Database.openDatabase(Database.java:307) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Database.<init>(Database.java:301) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Engine.openSession(Engine.java:74) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Engine.openSession(Engine.java:192) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Engine.createSessionAndValidate(Engine.java:171) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Engine.createSession(Engine.java:166) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Engine.createSession(Engine.java:29) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.SessionRemote.connectEmbeddedOrServer(SessionRemote.java:340) ~[h2-1.4.200.jar:1.4.200] at org.h2.jdbc.JdbcConnection.<init>(JdbcConnection.java:173) ~[h2-1.4.200.jar:1.4.200] at org.h2.jdbc.JdbcConnection.<init>(JdbcConnection.java:152) ~[h2-1.4.200.jar:1.4.200] at org.h2.Driver.connect(Driver.java:69) ~[h2-1.4.200.jar:1.4.200] 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.springframework.jdbc.datasource.DataSourceUtils.fetchConnection(DataSourceUtils.java:158) ~[spring-jdbc-5.3.8.jar:5.3.8] at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:116) ~[spring-jdbc-5.3.8.jar:5.3.8] at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:79) ~[spring-jdbc-5.3.8.jar:5.3.8] at spring.springintroduction.repository.JdbcMemberRepository.getConnection(JdbcMemberRepository.java:138) ~[classes/:na] at spring.springintroduction.repository.JdbcMemberRepository.findAll(JdbcMemberRepository.java:90) ~[classes/:na] at spring.springintroduction.service.MemberService.findMembers(MemberService.java:37) ~[classes/:na] at spring.springintroduction.controller.MemberController.list(MemberController.java:40) ~[classes/:na] at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na] at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:na] at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na] at java.base/java.lang.reflect.Method.invoke(Method.java:566) ~[na:na] at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:197) ~[spring-web-5.3.8.jar:5.3.8] at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:141) ~[spring-web-5.3.8.jar:5.3.8] at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:106) ~[spring-webmvc-5.3.8.jar:5.3.8] at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:894) ~[spring-webmvc-5.3.8.jar:5.3.8] at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:808) ~[spring-webmvc-5.3.8.jar:5.3.8] at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-5.3.8.jar:5.3.8] at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1063) ~[spring-webmvc-5.3.8.jar:5.3.8] at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:963) ~[spring-webmvc-5.3.8.jar:5.3.8] at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) ~[spring-webmvc-5.3.8.jar:5.3.8] at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898) ~[spring-webmvc-5.3.8.jar:5.3.8] at javax.servlet.http.HttpServlet.service(HttpServlet.java:655) ~[tomcat-embed-core-9.0.48.jar:4.0.FR] at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) ~[spring-webmvc-5.3.8.jar:5.3.8] at javax.servlet.http.HttpServlet.service(HttpServlet.java:764) ~[tomcat-embed-core-9.0.48.jar:4.0.FR] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:228) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) ~[tomcat-embed-websocket-9.0.48.jar:9.0.48] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:190) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-5.3.8.jar:5.3.8] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.8.jar:5.3.8] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:190) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[spring-web-5.3.8.jar:5.3.8] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.8.jar:5.3.8] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:190) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-5.3.8.jar:5.3.8] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.8.jar:5.3.8] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:190) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:542) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:143) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:357) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:382) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:893) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1723) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) ~[na:na] at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) ~[na:na] at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at java.base/java.lang.Thread.run(Thread.java:834) ~[na:na] Caused by: java.lang.IllegalStateException: The file is locked: nio:C:/Users/hikar/Documents/H2/Spring-introduction.mv.db [1.4.200/7] at org.h2.mvstore.DataUtils.newIllegalStateException(DataUtils.java:950) ~[h2-1.4.200.jar:1.4.200] at org.h2.mvstore.FileStore.open(FileStore.java:172) ~[h2-1.4.200.jar:1.4.200] at org.h2.mvstore.MVStore.<init>(MVStore.java:381) ~[h2-1.4.200.jar:1.4.200] at org.h2.mvstore.MVStore$Builder.open(MVStore.java:3579) ~[h2-1.4.200.jar:1.4.200] at org.h2.mvstore.db.MVTableEngine$Store.open(MVTableEngine.java:170) ~[h2-1.4.200.jar:1.4.200] ... 78 common frames omitted 2021-07-31 15:33:58.570 ERROR 8400 --- [nio-8080-exec-3] o.a.c.c.C.[.[.[/].[dispatcherServlet] : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is java.lang.IllegalStateException: org.springframework.jdbc.CannotGetJdbcConnectionException: Failed to obtain JDBC Connection; nested exception is org.h2.jdbc.JdbcSQLNonTransientConnectionException: Database may be already in use: null. Possible solutions: close all other connection(s); use the server mode [90020-200]] with root cause java.lang.IllegalStateException: The file is locked: nio:C:/Users/hikar/Documents/H2/Spring-introduction.mv.db [1.4.200/7] at org.h2.mvstore.DataUtils.newIllegalStateException(DataUtils.java:950) ~[h2-1.4.200.jar:1.4.200] at org.h2.mvstore.FileStore.open(FileStore.java:172) ~[h2-1.4.200.jar:1.4.200] at org.h2.mvstore.MVStore.<init>(MVStore.java:381) ~[h2-1.4.200.jar:1.4.200] at org.h2.mvstore.MVStore$Builder.open(MVStore.java:3579) ~[h2-1.4.200.jar:1.4.200] at org.h2.mvstore.db.MVTableEngine$Store.open(MVTableEngine.java:170) ~[h2-1.4.200.jar:1.4.200] at org.h2.mvstore.db.MVTableEngine.init(MVTableEngine.java:103) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Database.getPageStore(Database.java:2659) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Database.open(Database.java:675) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Database.openDatabase(Database.java:307) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Database.<init>(Database.java:301) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Engine.openSession(Engine.java:74) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Engine.openSession(Engine.java:192) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Engine.createSessionAndValidate(Engine.java:171) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Engine.createSession(Engine.java:166) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.Engine.createSession(Engine.java:29) ~[h2-1.4.200.jar:1.4.200] at org.h2.engine.SessionRemote.connectEmbeddedOrServer(SessionRemote.java:340) ~[h2-1.4.200.jar:1.4.200] at org.h2.jdbc.JdbcConnection.<init>(JdbcConnection.java:173) ~[h2-1.4.200.jar:1.4.200] at org.h2.jdbc.JdbcConnection.<init>(JdbcConnection.java:152) ~[h2-1.4.200.jar:1.4.200] at org.h2.Driver.connect(Driver.java:69) ~[h2-1.4.200.jar:1.4.200] 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.springframework.jdbc.datasource.DataSourceUtils.fetchConnection(DataSourceUtils.java:158) ~[spring-jdbc-5.3.8.jar:5.3.8] at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:116) ~[spring-jdbc-5.3.8.jar:5.3.8] at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:79) ~[spring-jdbc-5.3.8.jar:5.3.8] at spring.springintroduction.repository.JdbcMemberRepository.getConnection(JdbcMemberRepository.java:138) ~[classes/:na] at spring.springintroduction.repository.JdbcMemberRepository.findAll(JdbcMemberRepository.java:90) ~[classes/:na] at spring.springintroduction.service.MemberService.findMembers(MemberService.java:37) ~[classes/:na] at spring.springintroduction.controller.MemberController.list(MemberController.java:40) ~[classes/:na] at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na] at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:na] at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na] at java.base/java.lang.reflect.Method.invoke(Method.java:566) ~[na:na] at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:197) ~[spring-web-5.3.8.jar:5.3.8] at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:141) ~[spring-web-5.3.8.jar:5.3.8] at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:106) ~[spring-webmvc-5.3.8.jar:5.3.8] at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:894) ~[spring-webmvc-5.3.8.jar:5.3.8] at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:808) ~[spring-webmvc-5.3.8.jar:5.3.8] at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-5.3.8.jar:5.3.8] at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1063) ~[spring-webmvc-5.3.8.jar:5.3.8] at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:963) ~[spring-webmvc-5.3.8.jar:5.3.8] at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) ~[spring-webmvc-5.3.8.jar:5.3.8] at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898) ~[spring-webmvc-5.3.8.jar:5.3.8] at javax.servlet.http.HttpServlet.service(HttpServlet.java:655) ~[tomcat-embed-core-9.0.48.jar:4.0.FR] at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) ~[spring-webmvc-5.3.8.jar:5.3.8] at javax.servlet.http.HttpServlet.service(HttpServlet.java:764) ~[tomcat-embed-core-9.0.48.jar:4.0.FR] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:228) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) ~[tomcat-embed-websocket-9.0.48.jar:9.0.48] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:190) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-5.3.8.jar:5.3.8] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.8.jar:5.3.8] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:190) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[spring-web-5.3.8.jar:5.3.8] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.8.jar:5.3.8] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:190) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-5.3.8.jar:5.3.8] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.8.jar:5.3.8] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:190) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:542) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:143) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:357) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:382) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:893) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1723) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) ~[na:na] at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) ~[na:na] at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) ~[tomcat-embed-core-9.0.48.jar:9.0.48] at java.base/java.lang.Thread.run(Thread.java:834) ~[na:na] <소스 코드>

  • error
  • java
  • jdbc
  • h2
  • spring
  • spring-boot
  • MVC
코카콜라 댓글 7 좋아요 0 조회수 813

errors.properties에 Range={0}, {2} ~ {1} 허용 이라 써 있는 부분 질문입니다.

미해결

스프링 MVC 2편 - 백엔드 웹 개발 활용 기술

저는 당연히 순서대로 {1}이 1000을 의미하고 {2}가 1000000을 의미 할 줄 알았는데 {2} ~ {1} 로 써야 1000 ~ 1000000가 나오네요 {1}, {2}의 안의 숫자 1,2의미가 무엇인가요??

  • spring
  • MVC
qkrwnstns52 댓글 2 좋아요 11 조회수 827

IO Exception: null [90028-200] 90028/90028 오류

미해결

실전! 스프링 부트와 JPA 활용1 - 웹 애플리케이션 개발

jpashop.mv.db파일이 생성되지 않고 , IO Exception: null [90028-200] 90028/90028 가 뜨는데 제가 이전 수업에서 사용했던 test.mv.db파일이 있어서 jpashop.mv.db파일이 생성이 안되는건지 모르겠습니다. 도움주시면 감사하겠습니다 ㅜㅜ

  • JPA
  • spring
  • java
  • 웹앱
  • spring-boot
신동민 댓글 3 좋아요 0 조회수 3428

FieldError에 arguments로 Integer를 넘겨줬는데 화면에는 콤마가 포함되는 이유가 궁금해요.

미해결

스프링 MVC 2편 - 백엔드 웹 개발 활용 기술

FieldError 생성자 중 arguments에 Object 배열을 전달하는데 분명 Integer 값을 전달했음에도 화면에는 알아서 1000 단위로 콤마가 찍혀서 나오는 이유가 궁금합니다. 혼자서 검색으로 알아보려 했는데 어디서 찾아야 하는지도 몰라 계속 헤매기만 하네요. ㅠㅠ

  • spring
  • spring-boot
  • MVC
  • spring
송민기 댓글 1 좋아요 4 조회수 350

Hibernate5Module가 기본상태일때

미해결

실전! 스프링 부트와 JPA 활용2 - API 개발과 성능 최적화

하이버네이트 모듈이 기본상태일때 orderItem을 DB에서 자꾸 쿼리하는게 로그상에 보여서 질문드리는데요 이 상태에서 Order엔티티에 "orderItems" 는 1대다 관계로 묶여있어서 당연히 기본이 lazy로딩이라서 orderItems에 접근하지 않는한 DB에서 쿼리하지 않을줄 알았는데 쿼리가 나가더라구요 ..? 왜 그런걸까요 ..?? 제가 배운 내용으로는 이해가 가지 않아서 ㅠㅠ

  • java
  • spring-boot
  • spring
  • JPA
원석나 댓글 4 좋아요 3 조회수 607

인기 태그

인프런 TOP Writers

주간 인기글