묻고 답해요
158만명의 커뮤니티!! 함께 토론해봐요.
인프런 TOP Writers
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해결됨스프링 MVC 2편 - 백엔드 웹 개발 활용 기술
쿠키와 세션의 관계에 대해서
[질문 템플릿]1. 강의 내용과 관련된 질문인가요? (예2. 인프런의 질문 게시판과 자주 하는 질문에 없는 내용인가요? (예3. 질문 잘하기 메뉴얼을 읽어보셨나요? (예[질문 내용]세션안에 쿠키가 사용된다 하셔가지고 sessionId와 value가 무슨 관계가 있나? 생각했습니다.저희가 직접 만든 session이용 파트에서 SessionManager의 코드 중Cookie MySessionCookie=new Cookie(SESSION_COOKIE_NAME,sessionID)가 있습니다.그래서 HttpSession 에서 실험해 보았는데요. session.setAttribute(SessionConst.LOGIN_MEMBER,loginMember); System.out.println(session.getId()); System.out.println(session.getAttribute(SessionConst.LOGIN_MEMBER)); Cookie []cookie=request.getCookies(); for(int i=0;i<cookie.length;i++){ System.out.println(cookie[i].getValue()); System.out.println(cookie[i].getName()); } 이거로요.0BF73A108D2A8687E85F4D84FF0BD3FF->sessionID21BCD10FFBAA82EDCBF8D917BCEC0BE8->쿠키의 값 value 인데왜 둘이 다른 걸까요?쿠키와 세션의 관계가 헷갈리네요.
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해결됨[코드캠프] 부트캠프에서 만든 고농축 프론트엔드 코스
싸이월드 만들기 4탄 질문
id="myword"가 떡하니 있는데 왜저럴까요..let lastword = word[word.length-1] let firstword = myword[0]부분도 let 선언이 안되는것같습니다 ㅠ game.html:<!DOCTYPE html> <html lang="ko"> <head> <title>Game</title> <link href="./styles/game.css" rel="stylesheet"> <script src="./game.js"></script> </head> <body> <div class="wrapper"> <div class="wrapper__header"> <div class="header__title"> <div class="title">GAME</div> <div class="subtitle">TODAY CHOICE</div> </div> <div class="divideLine"></div> </div> <div class="game__container"> <img src="./images/word.png"> <div class="game__title">끝말잇기</div> <div class="game__subtitle">제시어 : <span id="word">코드캠프</span> </div> <div class="word__text"> <input class="textbox" id="myword" placeholder="단어를 입력하세요"> <button class="search" onclick="startWord()">입력</button> </div> <div class="word__result" id="result">결과!</div> </div> <div class="game__container"> <img src="./images/lotto.png"> <div class="game__title">LOTTO</div> <div class="game__subtitle"> 버튼을 누르세요. </div> <div class="lotto__text"> <div class="number__box"> <span class="number1">3</span> <span class="number1">5</span> <span class="number1">10</span> <span class="number1">24</span> <span class="number1">30</span> <span class="number1">34</span> </div> <button class="lotto_button">추첨</button> </div> </div> </div> </body> </html> game.js:const startWord = () => { let myword = document.getElementById("").value let word = document.getElementById("word").innerText let lastword = word[word.length-1] let firstword = myword[0] if(lastword === firstword){ document.getElementById("result").innerText = "정답입니다" document.getElementById("word").innerText = myword docement.getElementById("myword").value = "" } else { document.getElementById("result").innerText="떙!" docement.getElementById("myword").value = "" } }
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미해결
m1에서 intel 어셈블리 실행시키는 방법
지금 리눅스를 처음 사용해보는데 리눅스를 이용해 시스템 해킹을 공부하고 있습니다만m1 맥북에서 UTM을 사용해서 셸코드 작성 후 컴파일을 하려고 하니 에러가 나길래 구글링 해보니qemu라는 애물레이션을 써야된다고 나오는데리눅스에 익숙치 않다보니 설치방법을 잘 모르겠어서 글 쓰게 되었습니다..기초부터 강의 수강해서 공부할 계획인데 해킹 방법도 같이 공부하려고 합니다답변 달아주시면 정말 감사하겠습니다..!!
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미해결실전! 스프링 데이터 JPA
List<MemberDto> findMemberDto(); test에서 에러
안녕하세요. MemberRepository 에서 @Query("select new study.datajpa.dto.MemberDto(m.id, m.username, t.name from Member m join m.team t") List<MemberDto> findMemberDto();메소드를 만들고test케이스 실행시 에러가 납니다.// @Query DTO 조회하기 @Test public void findMemberDto() throws Exception { Team team = new Team("teamA"); teamRepository.save(team); Member m1 = new Member("aaa", 10); m1.setTeam(team); memberRepository.save(m1); //given List<MemberDto> memberDto = memberRepository.findMemberDto(); for (MemberDto dto : memberDto) { System.out.println("MemberDto = " + dto); } }MemberDtopackage study.datajpa.dto; import lombok.Data; @Data public class MemberDto { private Long id; private String username; private String teamName; public MemberDto(Long id, String username, String teamName) { this.id = id; this.username = username; this.teamName = teamName; } } 에러내용Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled. 2023-06-21 23:06:10.483 ERROR 15020 --- [ main] o.s.boot.SpringApplication : Application run failed org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'memberRepository' defined in study.datajpa.repository.MemberRepository defined in @EnableJpaRepositories declared on JpaRepositoriesRegistrar.EnableJpaRepositoriesConfiguration: Invocation of init method failed; nested exception is org.springframework.data.repository.query.QueryCreationException: Could not create query for public abstract java.util.List study.datajpa.repository.MemberRepository.findUser(java.lang.String,int); Reason: Validation failed for query for method public abstract java.util.List study.datajpa.repository.MemberRepository.findUser(java.lang.String,int)!; nested exception is java.lang.IllegalArgumentException: Validation failed for query for method public abstract java.util.List study.datajpa.repository.MemberRepository.findUser(java.lang.String,int)! at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1804) ~[spring-beans-5.3.27.jar:5.3.27] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:620) ~[spring-beans-5.3.27.jar:5.3.27] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542) ~[spring-beans-5.3.27.jar:5.3.27] at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[spring-beans-5.3.27.jar:5.3.27] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.27.jar:5.3.27] at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.27.jar:5.3.27] at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) ~[spring-beans-5.3.27.jar:5.3.27] at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:936) ~[spring-beans-5.3.27.jar:5.3.27] at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:920) ~[spring-context-5.3.27.jar:5.3.27] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:583) ~[spring-context-5.3.27.jar:5.3.27] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:731) ~[spring-boot-2.7.12.jar:2.7.12] at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:408) ~[spring-boot-2.7.12.jar:2.7.12] at org.springframework.boot.SpringApplication.run(SpringApplication.java:307) ~[spring-boot-2.7.12.jar:2.7.12] at org.springframework.boot.test.context.SpringBootContextLoader.loadContext(SpringBootContextLoader.java:136) ~[spring-boot-test-2.7.12.jar:2.7.12] at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContextInternal(DefaultCacheAwareContextLoaderDelegate.java:141) ~[spring-test-5.3.27.jar:5.3.27] at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:90) ~[spring-test-5.3.27.jar:5.3.27] at org.springframework.test.context.support.DefaultTestContext.getApplicationContext(DefaultTestContext.java:124) ~[spring-test-5.3.27.jar:5.3.27] at org.springframework.test.context.web.ServletTestExecutionListener.setUpRequestContextIfNecessary(ServletTestExecutionListener.java:190) ~[spring-test-5.3.27.jar:5.3.27] at org.springframework.test.context.web.ServletTestExecutionListener.prepareTestInstance(ServletTestExecutionListener.java:132) ~[spring-test-5.3.27.jar:5.3.27] at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:248) ~[spring-test-5.3.27.jar:5.3.27] at org.springframework.test.context.junit.jupiter.SpringExtension.postProcessTestInstance(SpringExtension.java:138) ~[spring-test-5.3.27.jar:5.3.27] at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$invokeTestInstancePostProcessors$8(ClassBasedTestDescriptor.java:363) ~[junit-jupiter-engine-5.8.2.jar:5.8.2] at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.executeAndMaskThrowable(ClassBasedTestDescriptor.java:368) ~[junit-jupiter-engine-5.8.2.jar:5.8.2] at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$invokeTestInstancePostProcessors$9(ClassBasedTestDescriptor.java:363) ~[junit-jupiter-engine-5.8.2.jar:5.8.2] at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197) ~[na:na] at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:179) ~[na:na] at java.base/java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1625) ~[na:na] at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:509) ~[na:na] at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:499) ~[na:na] at java.base/java.util.stream.StreamSpliterators$WrappingSpliterator.forEachRemaining(StreamSpliterators.java:310) ~[na:na] at java.base/java.util.stream.Streams$ConcatSpliterator.forEachRemaining(Streams.java:735) ~[na:na] at java.base/java.util.stream.Streams$ConcatSpliterator.forEachRemaining(Streams.java:734) ~[na:na] at java.base/java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:762) ~[na:na] at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.invokeTestInstancePostProcessors(ClassBasedTestDescriptor.java:362) ~[junit-jupiter-engine-5.8.2.jar:5.8.2] at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$instantiateAndPostProcessTestInstance$6(ClassBasedTestDescriptor.java:283) ~[junit-jupiter-engine-5.8.2.jar:5.8.2] at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.8.2.jar:1.8.2] at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.instantiateAndPostProcessTestInstance(ClassBasedTestDescriptor.java:282) ~[junit-jupiter-engine-5.8.2.jar:5.8.2] at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$testInstancesProvider$4(ClassBasedTestDescriptor.java:272) ~[junit-jupiter-engine-5.8.2.jar:5.8.2] at java.base/java.util.Optional.orElseGet(Optional.java:364) ~[na:na] at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$testInstancesProvider$5(ClassBasedTestDescriptor.java:271) ~[junit-jupiter-engine-5.8.2.jar:5.8.2] at org.junit.jupiter.engine.execution.TestInstancesProvider.getTestInstances(TestInstancesProvider.java:31) ~[junit-jupiter-engine-5.8.2.jar:5.8.2] at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$prepare$0(TestMethodTestDescriptor.java:102) ~[junit-jupiter-engine-5.8.2.jar:5.8.2] at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.8.2.jar:1.8.2] at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.prepare(TestMethodTestDescriptor.java:101) ~[junit-jupiter-engine-5.8.2.jar:5.8.2] at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.prepare(TestMethodTestDescriptor.java:66) ~[junit-jupiter-engine-5.8.2.jar:5.8.2] at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$prepare$2(NodeTestTask.java:123) ~[junit-platform-engine-1.8.2.jar:1.8.2] at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.8.2.jar:1.8.2] at org.junit.platform.engine.support.hierarchical.NodeTestTask.prepare(NodeTestTask.java:123) ~[junit-platform-engine-1.8.2.jar:1.8.2] at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:90) ~[junit-platform-engine-1.8.2.jar:1.8.2] at java.base/java.util.ArrayList.forEach(ArrayList.java:1511) ~[na:na] at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41) ~[junit-platform-engine-1.8.2.jar:1.8.2] at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155) ~[junit-platform-engine-1.8.2.jar:1.8.2] at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.8.2.jar:1.8.2] at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141) ~[junit-platform-engine-1.8.2.jar:1.8.2] at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137) ~[junit-platform-engine-1.8.2.jar:1.8.2] at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139) ~[junit-platform-engine-1.8.2.jar:1.8.2] at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.8.2.jar:1.8.2] at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138) ~[junit-platform-engine-1.8.2.jar:1.8.2] at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95) ~[junit-platform-engine-1.8.2.jar:1.8.2] at java.base/java.util.ArrayList.forEach(ArrayList.java:1511) ~[na:na] at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41) ~[junit-platform-engine-1.8.2.jar:1.8.2] at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155) ~[junit-platform-engine-1.8.2.jar:1.8.2] at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.8.2.jar:1.8.2] at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141) ~[junit-platform-engine-1.8.2.jar:1.8.2] at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137) ~[junit-platform-engine-1.8.2.jar:1.8.2] at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139) ~[junit-platform-engine-1.8.2.jar:1.8.2] at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.8.2.jar:1.8.2] at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138) ~[junit-platform-engine-1.8.2.jar:1.8.2] at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95) ~[junit-platform-engine-1.8.2.jar:1.8.2] at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.submit(SameThreadHierarchicalTestExecutorService.java:35) ~[junit-platform-engine-1.8.2.jar:1.8.2] at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:57) ~[junit-platform-engine-1.8.2.jar:1.8.2] at org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:54) ~[junit-platform-engine-1.8.2.jar:1.8.2] at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:107) ~[junit-platform-launcher-1.8.2.jar:1.8.2] at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:88) ~[junit-platform-launcher-1.8.2.jar:1.8.2] at org.junit.platform.launcher.core.EngineExecutionOrchestrator.lambda$execute$0(EngineExecutionOrchestrator.java:54) ~[junit-platform-launcher-1.8.2.jar:1.8.2] at org.junit.platform.launcher.core.EngineExecutionOrchestrator.withInterceptedStreams(EngineExecutionOrchestrator.java:67) ~[junit-platform-launcher-1.8.2.jar:1.8.2] at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:52) ~[junit-platform-launcher-1.8.2.jar:1.8.2] at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:114) ~[junit-platform-launcher-1.8.2.jar:1.8.2] at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:86) ~[junit-platform-launcher-1.8.2.jar:1.8.2] at org.junit.platform.launcher.core.DefaultLauncherSession$DelegatingLauncher.execute(DefaultLauncherSession.java:86) ~[junit-platform-launcher-1.8.2.jar:1.8.2] at org.junit.platform.launcher.core.SessionPerRequestLauncher.execute(SessionPerRequestLauncher.java:53) ~[junit-platform-launcher-1.8.2.jar:1.8.2] at com.intellij.junit5.JUnit5IdeaTestRunner.startRunnerWithArgs(JUnit5IdeaTestRunner.java:57) ~[junit5-rt.jar:na] at com.intellij.rt.junit.IdeaTestRunner$Repeater$1.execute(IdeaTestRunner.java:38) ~[junit-rt.jar:na] at com.intellij.rt.execution.junit.TestsRepeater.repeat(TestsRepeater.java:11) ~[idea_rt.jar:na] at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:35) ~[junit-rt.jar:na] at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:235) ~[junit-rt.jar:na] at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:54) ~[junit-rt.jar:na] Caused by: org.springframework.data.repository.query.QueryCreationException: Could not create query for public abstract java.util.List study.datajpa.repository.MemberRepository.findUser(java.lang.String,int); Reason: Validation failed for query for method public abstract java.util.List study.datajpa.repository.MemberRepository.findUser(java.lang.String,int)!; nested exception is java.lang.IllegalArgumentException: Validation failed for query for method public abstract java.util.List study.datajpa.repository.MemberRepository.findUser(java.lang.String,int)! at org.springframework.data.repository.query.QueryCreationException.create(QueryCreationException.java:101) ~[spring-data-commons-2.7.12.jar:2.7.12] at org.springframework.data.repository.core.support.QueryExecutorMethodInterceptor.lookupQuery(QueryExecutorMethodInterceptor.java:107) ~[spring-data-commons-2.7.12.jar:2.7.12] at org.springframework.data.repository.core.support.QueryExecutorMethodInterceptor.lambda$mapMethodsToQuery$1(QueryExecutorMethodInterceptor.java:95) ~[spring-data-commons-2.7.12.jar:2.7.12] at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197) ~[na:na] at java.base/java.util.Iterator.forEachRemaining(Iterator.java:133) ~[na:na] at java.base/java.util.Collections$UnmodifiableCollection$1.forEachRemaining(Collections.java:1061) ~[na:na] at java.base/java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1845) ~[na:na] at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:509) ~[na:na] at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:499) ~[na:na] at java.base/java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:921) ~[na:na] at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[na:na] at java.base/java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:682) ~[na:na] at org.springframework.data.repository.core.support.QueryExecutorMethodInterceptor.mapMethodsToQuery(QueryExecutorMethodInterceptor.java:97) ~[spring-data-commons-2.7.12.jar:2.7.12] at org.springframework.data.repository.core.support.QueryExecutorMethodInterceptor.lambda$new$0(QueryExecutorMethodInterceptor.java:87) ~[spring-data-commons-2.7.12.jar:2.7.12] at java.base/java.util.Optional.map(Optional.java:260) ~[na:na] at org.springframework.data.repository.core.support.QueryExecutorMethodInterceptor.<init>(QueryExecutorMethodInterceptor.java:87) ~[spring-data-commons-2.7.12.jar:2.7.12] at org.springframework.data.repository.core.support.RepositoryFactorySupport.getRepository(RepositoryFactorySupport.java:365) ~[spring-data-commons-2.7.12.jar:2.7.12] at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.lambda$afterPropertiesSet$5(RepositoryFactoryBeanSupport.java:323) ~[spring-data-commons-2.7.12.jar:2.7.12] at org.springframework.data.util.Lazy.getNullable(Lazy.java:231) ~[spring-data-commons-2.7.12.jar:2.7.12] at org.springframework.data.util.Lazy.get(Lazy.java:115) ~[spring-data-commons-2.7.12.jar:2.7.12] at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.afterPropertiesSet(RepositoryFactoryBeanSupport.java:329) ~[spring-data-commons-2.7.12.jar:2.7.12] at org.springframework.data.jpa.repository.support.JpaRepositoryFactoryBean.afterPropertiesSet(JpaRepositoryFactoryBean.java:144) ~[spring-data-jpa-2.7.12.jar:2.7.12] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1863) ~[spring-beans-5.3.27.jar:5.3.27] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1800) ~[spring-beans-5.3.27.jar:5.3.27] ... 86 common frames omitted Caused by: java.lang.IllegalArgumentException: Validation failed for query for method public abstract java.util.List study.datajpa.repository.MemberRepository.findUser(java.lang.String,int)! at org.springframework.data.jpa.repository.query.SimpleJpaQuery.validateQuery(SimpleJpaQuery.java:96) ~[spring-data-jpa-2.7.12.jar:2.7.12] at org.springframework.data.jpa.repository.query.SimpleJpaQuery.<init>(SimpleJpaQuery.java:66) ~[spring-data-jpa-2.7.12.jar:2.7.12] at org.springframework.data.jpa.repository.query.JpaQueryFactory.fromMethodWithQueryString(JpaQueryFactory.java:51) ~[spring-data-jpa-2.7.12.jar:2.7.12] at org.springframework.data.jpa.repository.query.JpaQueryLookupStrategy$DeclaredQueryLookupStrategy.resolveQuery(JpaQueryLookupStrategy.java:169) ~[spring-data-jpa-2.7.12.jar:2.7.12] at org.springframework.data.jpa.repository.query.JpaQueryLookupStrategy$CreateIfNotFoundQueryLookupStrategy.resolveQuery(JpaQueryLookupStrategy.java:253) ~[spring-data-jpa-2.7.12.jar:2.7.12] at org.springframework.data.jpa.repository.query.JpaQueryLookupStrategy$AbstractQueryLookupStrategy.resolveQuery(JpaQueryLookupStrategy.java:93) ~[spring-data-jpa-2.7.12.jar:2.7.12] at org.springframework.data.repository.core.support.QueryExecutorMethodInterceptor.lookupQuery(QueryExecutorMethodInterceptor.java:103) ~[spring-data-commons-2.7.12.jar:2.7.12] ... 108 common frames omitted Caused by: java.lang.IllegalArgumentException: org.hibernate.hql.internal.ast.QuerySyntaxException: m is not mapped [select m from m where m.username = :username and m.age = :age] at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:138) ~[hibernate-core-5.6.15.Final.jar:5.6.15.Final] at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:181) ~[hibernate-core-5.6.15.Final.jar:5.6.15.Final] at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:188) ~[hibernate-core-5.6.15.Final.jar:5.6.15.Final] at org.hibernate.internal.AbstractSharedSessionContract.createQuery(AbstractSharedSessionContract.java:757) ~[hibernate-core-5.6.15.Final.jar:5.6.15.Final] at org.hibernate.internal.AbstractSharedSessionContract.createQuery(AbstractSharedSessionContract.java:114) ~[hibernate-core-5.6.15.Final.jar:5.6.15.Final] at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na] at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[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:568) ~[na:na] at org.springframework.orm.jpa.ExtendedEntityManagerCreator$ExtendedEntityManagerInvocationHandler.invoke(ExtendedEntityManagerCreator.java:362) ~[spring-orm-5.3.27.jar:5.3.27] at jdk.proxy2/jdk.proxy2.$Proxy109.createQuery(Unknown Source) ~[na:na] at org.springframework.data.jpa.repository.query.SimpleJpaQuery.validateQuery(SimpleJpaQuery.java:90) ~[spring-data-jpa-2.7.12.jar:2.7.12] ... 114 common frames omitted Caused by: org.hibernate.hql.internal.ast.QuerySyntaxException: m is not mapped [select m from m where m.username = :username and m.age = :age] at org.hibernate.hql.internal.ast.QuerySyntaxException.generateQueryException(QuerySyntaxException.java:79) ~[hibernate-core-5.6.15.Final.jar:5.6.15.Final] at org.hibernate.QueryException.wrapWithQueryString(QueryException.java:103) ~[hibernate-core-5.6.15.Final.jar:5.6.15.Final] at org.hibernate.hql.internal.ast.QueryTranslatorImpl.doCompile(QueryTranslatorImpl.java:220) ~[hibernate-core-5.6.15.Final.jar:5.6.15.Final] at org.hibernate.hql.internal.ast.QueryTranslatorImpl.compile(QueryTranslatorImpl.java:144) ~[hibernate-core-5.6.15.Final.jar:5.6.15.Final] at org.hibernate.engine.query.spi.HQLQueryPlan.<init>(HQLQueryPlan.java:112) ~[hibernate-core-5.6.15.Final.jar:5.6.15.Final] at org.hibernate.engine.query.spi.HQLQueryPlan.<init>(HQLQueryPlan.java:73) ~[hibernate-core-5.6.15.Final.jar:5.6.15.Final] at org.hibernate.engine.query.spi.QueryPlanCache.getHQLQueryPlan(QueryPlanCache.java:162) ~[hibernate-core-5.6.15.Final.jar:5.6.15.Final] at org.hibernate.internal.AbstractSharedSessionContract.getQueryPlan(AbstractSharedSessionContract.java:636) ~[hibernate-core-5.6.15.Final.jar:5.6.15.Final] at org.hibernate.internal.AbstractSharedSessionContract.createQuery(AbstractSharedSessionContract.java:748) ~[hibernate-core-5.6.15.Final.jar:5.6.15.Final] ... 122 common frames omitted Caused by: org.hibernate.hql.internal.ast.QuerySyntaxException: m is not mapped at org.hibernate.hql.internal.ast.util.SessionFactoryHelper.requireClassPersister(SessionFactoryHelper.java:170) ~[hibernate-core-5.6.15.Final.jar:5.6.15.Final] at org.hibernate.hql.internal.ast.tree.FromElementFactory.addFromElement(FromElementFactory.java:91) ~[hibernate-core-5.6.15.Final.jar:5.6.15.Final] at org.hibernate.hql.internal.ast.tree.FromClause.addFromElement(FromClause.java:77) ~[hibernate-core-5.6.15.Final.jar:5.6.15.Final] at org.hibernate.hql.internal.ast.HqlSqlWalker.createFromElement(HqlSqlWalker.java:334) ~[hibernate-core-5.6.15.Final.jar:5.6.15.Final] at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.fromElement(HqlSqlBaseWalker.java:3782) ~[hibernate-core-5.6.15.Final.jar:5.6.15.Final] at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.fromElementList(HqlSqlBaseWalker.java:3671) ~[hibernate-core-5.6.15.Final.jar:5.6.15.Final] at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.fromClause(HqlSqlBaseWalker.java:746) ~[hibernate-core-5.6.15.Final.jar:5.6.15.Final] at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.query(HqlSqlBaseWalker.java:602) ~[hibernate-core-5.6.15.Final.jar:5.6.15.Final] at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.selectStatement(HqlSqlBaseWalker.java:339) ~[hibernate-core-5.6.15.Final.jar:5.6.15.Final] at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.statement(HqlSqlBaseWalker.java:287) ~[hibernate-core-5.6.15.Final.jar:5.6.15.Final] at org.hibernate.hql.internal.ast.QueryTranslatorImpl.analyze(QueryTranslatorImpl.java:276) ~[hibernate-core-5.6.15.Final.jar:5.6.15.Final] at org.hibernate.hql.internal.ast.QueryTranslatorImpl.doCompile(QueryTranslatorImpl.java:192) ~[hibernate-core-5.6.15.Final.jar:5.6.15.Final] ... 128 common frames omitted 2023-06-21 23:06:10.487 ERROR 15020 --- [ main] o.s.test.context.TestContextManager : Caught exception while allowing TestExecutionListener [org.springframework.test.context.web.ServletTestExecutionListener@6e01f9b0] to prepare test instance [study.datajpa.repository.MemberRepositoryTest@44ec4a38] java.lang.IllegalStateException: Failed to load ApplicationContext at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:98) ~[spring-test-5.3.27.jar:5.3.27] at org.springframework.test.context.support.DefaultTestContext.getApplicationContext(DefaultTestContext.java:124) ~[spring-test-5.3.27.jar:5.3.27] at org.springframework.test.context.web.ServletTestExecutionListener.setUpRequestContextIfNecessary(ServletTestExecutionListener.java:190) ~[spring-test-5.3.27.jar:5.3.27] at org.springframework.test.context.web.ServletTestExecutionListener.prepareTestInstance(ServletTestExecutionListener.java:132) ~[spring-test-5.3.27.jar:5.3.27] at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:248) ~[spring-test-5.3.27.jar:5.3.27] at org.springframework.test.context.junit.jupiter.SpringExtension.postProcessTestInstance(SpringExtension.java:138) ~[spring-test-5.3.27.jar:5.3.27] at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$invokeTestInstancePostProcessors$8(ClassBasedTestDescriptor.java:363) ~[junit-jupiter-engine-5.8.2.jar:5.8.2] at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.executeAndMaskThrowable(ClassBasedTestDescriptor.java:368) ~[junit-jupiter-engine-5.8.2.jar:5.8.2] at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$invokeTestInstancePostProcessors$9(ClassBasedTestDescriptor.java:363) ~[junit-jupiter-engine-5.8.2.jar:5.8.2] at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197) ~[na:na] at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:179) ~[na:na] at java.base/java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1625) ~[na:na] at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:509) ~[na:na] at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:499) ~[na:na] at java.base/java.util.stream.StreamSpliterators$WrappingSpliterator.forEachRemaining(StreamSpliterators.java:310) ~[na:na] at java.base/java.util.stream.Streams$ConcatSpliterator.forEachRemaining(Streams.java:735) ~[na:na] at java.base/java.util.stream.Streams$ConcatSpliterator.forEachRemaining(Streams.java:734) ~[na:na] at java.base/java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:762) ~[na:na] at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.invokeTestInstancePostProcessors(ClassBasedTestDescriptor.java:362) ~[junit-jupiter-engine-5.8.2.jar:5.8.2] at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$instantiateAndPostProcessTestInstance$6(ClassBasedTestDescriptor.java:283) ~[junit-jupiter-engine-5.8.2.jar:5.8.2] at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.8.2.jar:1.8.2] at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.instantiateAndPostProcessTestInstance(ClassBasedTestDescriptor.java:282) ~[junit-jupiter-engine-5.8.2.jar:5.8.2] at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$testInstancesProvider$4(ClassBasedTestDescriptor.java:272) ~[junit-jupiter-engine-5.8.2.jar:5.8.2] at java.base/java.util.Optional.orElseGet(Optional.java:364) ~[na:na] at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$testInstancesProvider$5(ClassBasedTestDescriptor.java:271) ~[junit-jupiter-engine-5.8.2.jar:5.8.2] at org.junit.jupiter.engine.execution.TestInstancesProvider.getTestInstances(TestInstancesProvider.java:31) ~[junit-jupiter-engine-5.8.2.jar:5.8.2] at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$prepare$0(TestMethodTestDescriptor.java:102) ~[junit-jupiter-engine-5.8.2.jar:5.8.2] at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.8.2.jar:1.8.2] at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.prepare(TestMethodTestDescriptor.java:101) ~[junit-jupiter-engine-5.8.2.jar:5.8.2] at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.prepare(TestMethodTestDescriptor.java:66) ~[junit-jupiter-engine-5.8.2.jar:5.8.2] at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$prepare$2(NodeTestTask.java:123) ~[junit-platform-engine-1.8.2.jar:1.8.2] at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.8.2.jar:1.8.2] at org.junit.platform.engine.support.hierarchical.NodeTestTask.prepare(NodeTestTask.java:123) ~[junit-platform-engine-1.8.2.jar:1.8.2] at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:90) ~[junit-platform-engine-1.8.2.jar:1.8.2] at java.base/java.util.ArrayList.forEach(ArrayList.java:1511) ~[na:na] at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41) ~[junit-platform-engine-1.8.2.jar:1.8.2] at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155) ~[junit-platform-engine-1.8.2.jar:1.8.2] at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.8.2.jar:1.8.2] at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141) ~[junit-platform-engine-1.8.2.jar:1.8.2] at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137) ~[junit-platform-engine-1.8.2.jar:1.8.2] at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139) ~[junit-platform-engine-1.8.2.jar:1.8.2] at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.8.2.jar:1.8.2] at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138) ~[junit-platform-engine-1.8.2.jar:1.8.2] at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95) ~[junit-platform-engine-1.8.2.jar:1.8.2] at java.base/java.util.ArrayList.forEach(ArrayList.java:1511) ~[na:na] at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41) ~[junit-platform-engine-1.8.2.jar:1.8.2] at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155) ~[junit-platform-engine-1.8.2.jar:1.8.2] at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.8.2.jar:1.8.2] at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141) ~[junit-platform-engine-1.8.2.jar:1.8.2] at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137) ~[junit-platform-engine-1.8.2.jar:1.8.2] at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139) ~[junit-platform-engine-1.8.2.jar:1.8.2] at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.8.2.jar:1.8.2] at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138) ~[junit-platform-engine-1.8.2.jar:1.8.2] at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95) ~[junit-platform-engine-1.8.2.jar:1.8.2] at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.submit(SameThreadHierarchicalTestExecutorService.java:35) ~[junit-platform-engine-1.8.2.jar:1.8.2] at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:57) ~[junit-platform-engine-1.8.2.jar:1.8.2] at org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:54) ~[junit-platform-engine-1.8.2.jar:1.8.2] at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:107) ~[junit-platform-launcher-1.8.2.jar:1.8.2] at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:88) ~[junit-platform-launcher-1.8.2.jar:1.8.2] at org.junit.platform.launcher.core.EngineExecutionOrchestrator.lambda$execute$0(EngineExecutionOrchestrator.java:54) ~[junit-platform-launcher-1.8.2.jar:1.8.2] at org.junit.platform.launcher.core.EngineExecutionOrchestrator.withInterceptedStreams(EngineExecutionOrchestrator.java:67) ~[junit-platform-launcher-1.8.2.jar:1.8.2] at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:52) ~[junit-platform-launcher-1.8.2.jar:1.8.2] at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:114) ~[junit-platform-launcher-1.8.2.jar:1.8.2] at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:86) ~[junit-platform-launcher-1.8.2.jar:1.8.2] at org.junit.platform.launcher.core.DefaultLauncherSession$DelegatingLauncher.execute(DefaultLauncherSession.java:86) ~[junit-platform-launcher-1.8.2.jar:1.8.2] at org.junit.platform.launcher.core.SessionPerRequestLauncher.execute(SessionPerRequestLauncher.java:53) ~[junit-platform-launcher-1.8.2.jar:1.8.2] at com.intellij.junit5.JUnit5IdeaTestRunner.startRunnerWithArgs(JUnit5IdeaTestRunner.java:57) ~[junit5-rt.jar:na] at com.intellij.rt.junit.IdeaTestRunner$Repeater$1.execute(IdeaTestRunner.java:38) ~[junit-rt.jar:na] at com.intellij.rt.execution.junit.TestsRepeater.repeat(TestsRepeater.java:11) ~[idea_rt.jar:na] at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:35) ~[junit-rt.jar:na] at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:235) ~[junit-rt.jar:na] at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:54) ~[junit-rt.jar:na] Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'memberRepository' defined in study.datajpa.repository.MemberRepository defined in @EnableJpaRepositories declared on JpaRepositoriesRegistrar.EnableJpaRepositoriesConfiguration: Invocation of init method failed; nested exception is org.springframework.data.repository.query.QueryCreationException: Could not create query for public abstract java.util.List study.datajpa.repository.MemberRepository.findUser(java.lang.String,int); Reason: Validation failed for query for method public abstract java.util.List study.datajpa.repository.MemberRepository.findUser(java.lang.String,int)!; nested exception is java.lang.IllegalArgumentException: Validation failed for query for method public abstract java.util.List study.datajpa.repository.MemberRepository.findUser(java.lang.String,int)! at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1804) ~[spring-beans-5.3.27.jar:5.3.27] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:620) ~[spring-beans-5.3.27.jar:5.3.27] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542) ~[spring-beans-5.3.27.jar:5.3.27] at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[spring-beans-5.3.27.jar:5.3.27] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.27.jar:5.3.27] at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.27.jar:5.3.27] at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) ~[spring-beans-5.3.27.jar:5.3.27] at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:936) ~[spring-beans-5.3.27.jar:5.3.27] at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:920) ~[spring-context-5.3.27.jar:5.3.27] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:583) ~[spring-context-5.3.27.jar:5.3.27] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:731) ~[spring-boot-2.7.12.jar:2.7.12] at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:408) ~[spring-boot-2.7.12.jar:2.7.12] at org.springframework.boot.SpringApplication.run(SpringApplication.java:307) ~[spring-boot-2.7.12.jar:2.7.12] at org.springframework.boot.test.context.SpringBootContextLoader.loadContext(SpringBootContextLoader.java:136) ~[spring-boot-test-2.7.12.jar:2.7.12] at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContextInternal(DefaultCacheAwareContextLoaderDelegate.java:141) ~[spring-test-5.3.27.jar:5.3.27] at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:90) ~[spring-test-5.3.27.jar:5.3.27] ... 71 common frames omitted Caused by: org.springframework.data.repository.query.QueryCreationException: Could not create query for public abstract java.util.List study.datajpa.repository.MemberRepository.findUser(java.lang.String,int); Reason: Validation failed for query for method public abstract java.util.List study.datajpa.repository.MemberRepository.findUser(java.lang.String,int)!; nested exception is java.lang.IllegalArgumentException: Validation failed for query for method public abstract java.util.List study.datajpa.repository.MemberRepository.findUser(java.lang.String,int)! at org.springframework.data.repository.query.QueryCreationException.create(QueryCreationException.java:101) ~[spring-data-commons-2.7.12.jar:2.7.12] at org.springframework.data.repository.core.support.QueryExecutorMethodInterceptor.lookupQuery(QueryExecutorMethodInterceptor.java:107) ~[spring-data-commons-2.7.12.jar:2.7.12] at org.springframework.data.repository.core.support.QueryExecutorMethodInterceptor.lambda$mapMethodsToQuery$1(QueryExecutorMethodInterceptor.java:95) ~[spring-data-commons-2.7.12.jar:2.7.12] at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197) ~[na:na] at java.base/java.util.Iterator.forEachRemaining(Iterator.java:133) ~[na:na] at java.base/java.util.Collections$UnmodifiableCollection$1.forEachRemaining(Collections.java:1061) ~[na:na] at java.base/java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1845) ~[na:na] at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:509) ~[na:na] at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:499) ~[na:na] at java.base/java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:921) ~[na:na] at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[na:na] at java.base/java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:682) ~[na:na] at org.springframework.data.repository.core.support.QueryExecutorMethodInterceptor.mapMethodsToQuery(QueryExecutorMethodInterceptor.java:97) ~[spring-data-commons-2.7.12.jar:2.7.12] at org.springframework.data.repository.core.support.QueryExecutorMethodInterceptor.lambda$new$0(QueryExecutorMethodInterceptor.java:87) ~[spring-data-commons-2.7.12.jar:2.7.12] at java.base/java.util.Optional.map(Optional.java:260) ~[na:na] at org.springframework.data.repository.core.support.QueryExecutorMethodInterceptor.<init>(QueryExecutorMethodInterceptor.java:87) ~[spring-data-commons-2.7.12.jar:2.7.12] at org.springframework.data.repository.core.support.RepositoryFactorySupport.getRepository(RepositoryFactorySupport.java:365) ~[spring-data-commons-2.7.12.jar:2.7.12] at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.lambda$afterPropertiesSet$5(RepositoryFactoryBeanSupport.java:323) ~[spring-data-commons-2.7.12.jar:2.7.12] at org.springframework.data.util.Lazy.getNullable(Lazy.java:231) ~[spring-data-commons-2.7.12.jar:2.7.12] at org.springframework.data.util.Lazy.get(Lazy.java:115) ~[spring-data-commons-2.7.12.jar:2.7.12] at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.afterPropertiesSet(RepositoryFactoryBeanSupport.java:329) ~[spring-data-commons-2.7.12.jar:2.7.12] at org.springframework.data.jpa.repository.support.JpaRepositoryFactoryBean.afterPropertiesSet(JpaRepositoryFactoryBean.java:144) ~[spring-data-jpa-2.7.12.jar:2.7.12] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1863) ~[spring-beans-5.3.27.jar:5.3.27] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1800) ~[spring-beans-5.3.27.jar:5.3.27] ... 86 common frames omitted Caused by: java.lang.IllegalArgumentException: Validation failed for query for method public abstract java.util.List study.datajpa.repository.MemberRepository.findUser(java.lang.String,int)! at org.springframework.data.jpa.repository.query.SimpleJpaQuery.validateQuery(SimpleJpaQuery.java:96) ~[spring-data-jpa-2.7.12.jar:2.7.12] at org.springframework.data.jpa.repository.query.SimpleJpaQuery.<init>(SimpleJpaQuery.java:66) ~[spring-data-jpa-2.7.12.jar:2.7.12] at org.springframework.data.jpa.repository.query.JpaQueryFactory.fromMethodWithQueryString(JpaQueryFactory.java:51) ~[spring-data-jpa-2.7.12.jar:2.7.12] at org.springframework.data.jpa.repository.query.JpaQueryLookupStrategy$DeclaredQueryLookupStrategy.resolveQuery(JpaQueryLookupStrategy.java:169) ~[spring-data-jpa-2.7.12.jar:2.7.12] at org.springframework.data.jpa.repository.query.JpaQueryLookupStrategy$CreateIfNotFoundQueryLookupStrategy.resolveQuery(JpaQueryLookupStrategy.java:253) ~[spring-data-jpa-2.7.12.jar:2.7.12] at org.springframework.data.jpa.repository.query.JpaQueryLookupStrategy$AbstractQueryLookupStrategy.resolveQuery(JpaQueryLookupStrategy.java:93) ~[spring-data-jpa-2.7.12.jar:2.7.12] at org.springframework.data.repository.core.support.QueryExecutorMethodInterceptor.lookupQuery(QueryExecutorMethodInterceptor.java:103) ~[spring-data-commons-2.7.12.jar:2.7.12] ... 108 common frames omitted Caused by: java.lang.IllegalArgumentException: org.hibernate.hql.internal.ast.QuerySyntaxException: m is not mapped [select m from m where m.username = :username and m.age = :age] at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:138) ~[hibernate-core-5.6.15.Final.jar:5.6.15.Final] at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:181) ~[hibernate-core-5.6.15.Final.jar:5.6.15.Final] at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:188) ~[hibernate-core-5.6.15.Final.jar:5.6.15.Final] at org.hibernate.internal.AbstractSharedSessionContract.createQuery(AbstractSharedSessionContract.java:757) ~[hibernate-core-5.6.15.Final.jar:5.6.15.Final] at org.hibernate.internal.AbstractSharedSessionContract.createQuery(AbstractSharedSessionContract.java:114) ~[hibernate-core-5.6.15.Final.jar:5.6.15.Final] at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na] at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[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:568) ~[na:na] at org.springframework.orm.jpa.ExtendedEntityManagerCreator$ExtendedEntityManagerInvocationHandler.invoke(ExtendedEntityManagerCreator.java:362) ~[spring-orm-5.3.27.jar:5.3.27] at jdk.proxy2/jdk.proxy2.$Proxy109.createQuery(Unknown Source) ~[na:na] at org.springframework.data.jpa.repository.query.SimpleJpaQuery.validateQuery(SimpleJpaQuery.java:90) ~[spring-data-jpa-2.7.12.jar:2.7.12] ... 114 common frames omitted Caused by: org.hibernate.hql.internal.ast.QuerySyntaxException: m is not mapped [select m from m where m.username = :username and m.age = :age] at org.hibernate.hql.internal.ast.QuerySyntaxException.generateQueryException(QuerySyntaxException.java:79) ~[hibernate-core-5.6.15.Final.jar:5.6.15.Final] at org.hibernate.QueryException.wrapWithQueryString(QueryException.java:103) ~[hibernate-core-5.6.15.Final.jar:5.6.15.Final] at org.hibernate.hql.internal.ast.QueryTranslatorImpl.doCompile(QueryTranslatorImpl.java:220) ~[hibernate-core-5.6.15.Final.jar:5.6.15.Final] at org.hibernate.hql.internal.ast.QueryTranslatorImpl.compile(QueryTranslatorImpl.java:144) ~[hibernate-core-5.6.15.Final.jar:5.6.15.Final] at org.hibernate.engine.query.spi.HQLQueryPlan.<init>(HQLQueryPlan.java:112) ~[hibernate-core-5.6.15.Final.jar:5.6.15.Final] at org.hibernate.engine.query.spi.HQLQueryPlan.<init>(HQLQueryPlan.java:73) ~[hibernate-core-5.6.15.Final.jar:5.6.15.Final] at org.hibernate.engine.query.spi.QueryPlanCache.getHQLQueryPlan(QueryPlanCache.java:162) ~[hibernate-core-5.6.15.Final.jar:5.6.15.Final] at org.hibernate.internal.AbstractSharedSessionContract.getQueryPlan(AbstractSharedSessionContract.java:636) ~[hibernate-core-5.6.15.Final.jar:5.6.15.Final] at org.hibernate.internal.AbstractSharedSessionContract.createQuery(AbstractSharedSessionContract.java:748) ~[hibernate-core-5.6.15.Final.jar:5.6.15.Final] ... 122 common frames omitted Caused by: org.hibernate.hql.internal.ast.QuerySyntaxException: m is not mapped at org.hibernate.hql.internal.ast.util.SessionFactoryHelper.requireClassPersister(SessionFactoryHelper.java:170) ~[hibernate-core-5.6.15.Final.jar:5.6.15.Final] at org.hibernate.hql.internal.ast.tree.FromElementFactory.addFromElement(FromElementFactory.java:91) ~[hibernate-core-5.6.15.Final.jar:5.6.15.Final] at org.hibernate.hql.internal.ast.tree.FromClause.addFromElement(FromClause.java:77) ~[hibernate-core-5.6.15.Final.jar:5.6.15.Final] at org.hibernate.hql.internal.ast.HqlSqlWalker.createFromElement(HqlSqlWalker.java:334) ~[hibernate-core-5.6.15.Final.jar:5.6.15.Final] at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.fromElement(HqlSqlBaseWalker.java:3782) ~[hibernate-core-5.6.15.Final.jar:5.6.15.Final] at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.fromElementList(HqlSqlBaseWalker.java:3671) ~[hibernate-core-5.6.15.Final.jar:5.6.15.Final] at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.fromClause(HqlSqlBaseWalker.java:746) ~[hibernate-core-5.6.15.Final.jar:5.6.15.Final] at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.query(HqlSqlBaseWalker.java:602) ~[hibernate-core-5.6.15.Final.jar:5.6.15.Final] at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.selectStatement(HqlSqlBaseWalker.java:339) ~[hibernate-core-5.6.15.Final.jar:5.6.15.Final] at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.statement(HqlSqlBaseWalker.java:287) ~[hibernate-core-5.6.15.Final.jar:5.6.15.Final] at org.hibernate.hql.internal.ast.QueryTranslatorImpl.analyze(QueryTranslatorImpl.java:276) ~[hibernate-core-5.6.15.Final.jar:5.6.15.Final] at org.hibernate.hql.internal.ast.QueryTranslatorImpl.doCompile(QueryTranslatorImpl.java:192) ~[hibernate-core-5.6.15.Final.jar:5.6.15.Final] ... 128 common frames omitted 어디서 문제가 발생된걸까요?
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미해결성공적인 진짜 iOS 개발자 되기 [기초부터 실무까지]
self.navigationBar.topItem?.leftBarButtonItem을 해도 button이 보이지 않습니다
강사님의 코드와 똑같이 코드를 구성했는데 버튼이 보이지 않습니다addsubView방식은 보이는 상황입니다 ㅠㅠ혹시 바뀐부분이있는걸까요
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미해결
스프링부트 mysql 연결은 했는데요
의존성 추가 및 yml 파일에 설정까지 연결을 하란데로 다 했습니다..다 잘돌아가는데 데이터만 안들어갑니다..ㅜㅜ 이유가 뭘까요?? bulid.gradle 부분 plugins { id 'java' id 'org.springframework.boot' version '2.7.12' id 'io.spring.dependency-management' version '1.0.15.RELEASE' } group = 'carrot' version = '0.0.1-SNAPSHOT' sourceCompatibility = '17' repositories { mavenCentral() } dependencies { //implementation 'mysql:mysql-connector-java' runtimeOnly 'mysql:mysql-connector-java:8.0.25' implementation 'org.mybatis.spring.boot:mybatis-spring-boot-starter:2.2.0' implementation 'org.springframework.boot:spring-boot-starter-web' implementation 'org.springframework.boot:spring-boot-starter-thymeleaf' implementation 'nz.net.ultraq.thymeleaf:thymeleaf-layout-dialect' implementation 'org.springframework.boot:spring-boot-starter-security' implementation group: 'org.mybatis', name: 'mybatis-typehandlers-jsr310', version: '1.0.2' implementation group: 'org.mybatis', name: 'mybatis-spring', version: '2.0.6' implementation 'org.bgee.log4jdbc-log4j2:log4jdbc-log4j2-jdbc4.1:1.16' /* Log4JDBC */ testImplementation 'org.springframework.boot:spring-boot-starter-test' testImplementation 'org.springframework.security:spring-security-test' compileOnly 'org.projectlombok:lombok:1.18.20' annotationProcessor 'org.projectlombok:lombok:1.18.20' compileOnly 'org.projectlombok:lombok' developmentOnly 'org.springframework.boot:spring-boot-devtools' runtimeOnly 'org.mariadb.jdbc:mariadb-java-client' annotationProcessor 'org.springframework.boot:spring-boot-configuration-processor' //runtimeOnly 'com.mysql:mysql-connector-j' //implementation 'org.springframework.boot:spring-boot-starter-actuator' } tasks.named('test') { useJUnitPlatform() }application.yml 부분spring: datasource: hikari: username: admin driver-class-name: net.sf.log4jdbc.sql.jdbcapi.DriverSpy jdbc-url: jdbc:log4jdbc:mysql://plong.cox1oouznzgl.ap-southeast-2.rds.amazonaws.com:3306/plong_db?serverTimezone=Asia/Seoul&useUnicode=true&characterEncoding=utf8&useSSL=false&allowPublicKeyRetrieval=true connection-test-query: SELECT NOW() FROM account password: #개인정보라 지우겠음 mybatis: configuration: underscore-to-camel-case: true 화면도 잘 나오고 정보 입력도 다 해서 가입완료까지 잘 됩니다.이러고 mysql 들어가보면 데이터가 안들어와있어요!방법이 있을까요??
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해결됨[퇴근후딴짓] 빅데이터 분석기사 실기 (작업형1,2,3)
train_test_split에서 적절한 test_size는?
train_test_split에서 적절한 test_size는 무엇일까요? 보통 0.2인데, 종종 달라질 때가 있어서요.
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미해결15일간의 빅데이터 파일럿 프로젝트
가상 server01 putty 접속시 오류 현상 (접속 끊김)
안녕하세요! "5. 빅데이터 클러스터 구성 4 - putty로 서버환경 접속"을 수강중에 있습니다.putty server01 login : root는 입력되는데,password가 쳐지지 않고 조금 있으면 접속이 끊긴다는 오류 메세지가 출력됩니다."Remote side unexpectedly closed network connection"어떻게 조치해야 하나요?
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해결됨데이터 분석 SQL Fundamentals
강사님 with 와 서브쿼리에 대해 질문이 있습니다.
with temp_01 as ( select avg(sal) as emp_avg from emp ) select deptno ,avg(sal) from emp group by deptno having avg(sal) > (select emp_avg from temp_01); -- 전체 평균 급여보다 부서평균 급여가 높은 부서 번호를 출력하세요 having에서 조건을 비교하는 방식을 사용한다고 한다면강사님께서는 having에 서브쿼리를 사용하게 되면 ,그 서브쿼리를 매번 실행하다보니 추천을 하지 않는다고 하셨는데 여기서 with로 임시 테이블을 지정하면이미 재사용하기 편하기 위해서 temp_01로 만들어서 사용하면임시 서브쿼리 테이블을 사용하니까 비상관 서브쿼리를 날리는 거보다 좀 더 나은 걸까요?
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해결됨자바(Java) 알고리즘 문제풀이 입문: 코딩테스트 대비
이 코드는 어떤 부분이 문제인지 궁금합니다.
import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner sc = new Scanner(System.in); int n = sc.nextInt(); Main main = new Main(); for (int i = 0; i < n; i++) { System.out.print(main.solution(i) + " "); } } private int solution(int i) { if (i <= 1) { return 1; } return solution(i - 1) + solution(i - 2); } }
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해결됨실전! 스프링 데이터 JPA
스프링 부트3와 카운트 쿼리 분리
학습하는 분들께 도움이 되고, 더 좋은 답변을 드릴 수 있도록 질문전에 다음을 꼭 확인해주세요.1. 강의 내용과 관련된 질문을 남겨주세요.2. 인프런의 질문 게시판과 자주 하는 질문(링크)을 먼저 확인해주세요.(자주 하는 질문 링크: https://bit.ly/3fX6ygx)3. 질문 잘하기 메뉴얼(링크)을 먼저 읽어주세요.(질문 잘하기 메뉴얼 링크: https://bit.ly/2UfeqCG)질문 시에는 위 내용은 삭제하고 다음 내용을 남겨주세요.=========================================[질문 템플릿]1. 강의 내용과 관련된 질문인가요? (예/아니오)2. 인프런의 질문 게시판과 자주 하는 질문에 없는 내용인가요? (예/아니오)3. 질문 잘하기 메뉴얼을 읽어보셨나요? (예/아니오)[질문 내용]안녕하세요.카운트 쿼리 분리 부분을 듣는 도중에 카운트 쿼리에 LEFT JOIN이 사용되는 결과를 확인하기 위해 다음처럼 코드를 작성하였습니다.public interface MemberRepository extends JpaRepository<Member, Long> { @Query(value = "select m from Member m left join m.team t") Page<Member> findByAge(int age, Pageable pageable); ... } @Test public void paging() throws Exception { //given memberRepository.save(new Member("member1", 10)); memberRepository.save(new Member("member2", 10)); memberRepository.save(new Member("member3", 10)); memberRepository.save(new Member("member4", 10)); memberRepository.save(new Member("member5", 10)); //when PageRequest pageRequest = PageRequest.of(0, 3, Sort.by(Sort.Direction.ASC, "username")); Page<Member> page = memberRepository.findByAge(10, pageRequest); //then List<Member> content = page.getContent(); assertThat(content.size()).isEqualTo(3); assertThat(page.getTotalElements()).isEqualTo(5); assertThat(page.getNumber()).isEqualTo(0); assertThat(page.getTotalPages()).isEqualTo(2); assertThat(page.isFirst()).isTrue(); assertThat(page.hasNext()).isTrue(); }그런데 결과는 강의와는 달리 카운트 쿼리에 LEFT JOIN 이 사용되지 않았고, 심지어 JPQL select m from Member m left join m.team t 을 @Query에 작성했음에도 조회 쿼리도 LEFT JOIN을 사용하지 않은 것을 확인했습니다.이후 스프링 부트 3 이하 버전에서 동일한 코드로 실행해보니 강의와 동일한 결과를 얻을 수 있었습니다.스프링 부트 3 부터 적용된 스프링 데이터 JPA 에서는 이러한 부분의 최적화를 자동으로 제공하는 것일까요?
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해결됨스프링부트 JUnit 테스트 - 시큐리티를 활용한 Bank 애플리케이션
로그인 인증 실패 시 예외처리하는 주체는 어느 것인가요?
기존에는 SecurityConfig 클래스의SecurityFilterChain에서 아래의 코드가로그인 실패 시 응답을 처리하는 주체였습니다. http.exceptionHandling() // 인증 예외 설정 .authenticationEntryPoint((request, response, authenticationException)->{ // 예외 가로채기\ CustomResponseUtil.fail(response, "로그인을 진행해주세요", HttpStatus.UNAUTHORIZED); });그러다 JwtAuthenticationFilter를 만들면서attemptAuthentication() 매서드가 실패 시 아래의unsuccessfulAuthentication()가 실행되게끔 했구요.@Override protected void unsuccessfulAuthentication(HttpServletRequest request, HttpServletResponse response, AuthenticationException failed) throws IOException, ServletException { CustomResponseUtil.fail(response, "로그인 실패", HttpStatus.UNAUTHORIZED); } 그래서 헷갈려서 실험해보니 기존의 SecurityFilterChain의 것은 주석처리해도 아무런상관이 없고, unsuccessfulAuthentication()가 동작하더라구요.이 두 코드의 차이는 정확히 어떤 것일까요?
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미해결프로그래밍 시작하기 : 파이썬 입문 (Inflearn Original)
강의 자료 요청드립니다.
안녕하세요.강의 자료를 요청드립니다.withbuhm@gmail.com감사합니다.
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해결됨[퇴근후딴짓] 빅데이터 분석기사 실기 (작업형1,2,3)
y_test
# 데이터 및 라이브러리 로드하기 import pandas as pd train = pd.read_csv('/content/train.csv') test = pd.read_csv('/content/test.csv') Train = train.copy() X_train = Train.drop(['Attrition_Flag','CLIENTNUM'],axis=1) y_train = Train['Attrition_Flag'] X_test = test.copy() X_test_CL = X_test.pop('CLIENTNUM') # print(X_train.head()) # print(y_train.head()) # print(X_test.head()) # EDA # print(X_train.shape, X_test.shape, y_train.shape) # print(X_train.isnull().sum()) # print(X_test.isnull().sum()) # print(X_train.describe()) # print(X_test.describe()) # print(X_train.describe(include = object)) # print(X_test.describe(include = object)) # print(y_train.value_counts()) # 데이터 전처리 - 결측치 없음, 이상치 없음 # 피처 엔지니어링 cols1 = list(X_train.columns[X_train.dtypes == object]) # 범주형 cols2 = list(X_train.columns[X_train.dtypes != object]) # 수치형 # print(cols2, X_train.info()) Xc_train = X_train[cols1] # 범주형 Xc_test = X_test[cols1] Xn_train = X_train[cols2] # 수치형 Xn_test = X_test[cols2] Xc_train = pd.get_dummies(X_train[cols1]) # 범주형 데이터 원핫인코딩 Xc_test = pd.get_dummies(X_test[cols1]) from sklearn.preprocessing import RobustScaler Ro = RobustScaler() X_train[cols2] = Ro.fit_transform(X_train[cols2]) X_test[cols2] = Ro.transform(X_test[cols2]) Xn_train = X_train[cols2] # 수치형 Xn_test = X_test[cols2] X_train = pd.concat([Xc_train, Xn_train], axis = 1) X_test= pd.concat([Xc_test, Xn_test], axis = 1) # print(X_train.head()) # print(X_test.head()) # 데이터 분리 from sklearn.model_selection import train_test_split X_tr, X_val, y_tr, y_val = train_test_split(X_train, y_train, test_size = 0.15, random_state=2023) # print(X_tr.shape, X_val.shape, y_tr.shape, y_val.shape) # 모델링 import lightgbm as lgb lg = lgb.LGBMClassifier(random_state=2023) lg.fit(X_tr, y_tr) predict = lg.predict(X_val) predictproba = lg.predict_proba(X_val) # 평가 및 제출 # ROC-AUC, 정확도(Accuracy), F1, 정밀도(Precision), 재현율(Recall) from sklearn.metrics import roc_auc_score, accuracy_score, f1_score, precision_score, recall_score # print(roc_auc_score(y_val, predictproba[:,1])) # print(accuracy_score(y_val, predict)) # print(f1_score(y_val, predict)) # print(precision_score(y_val, predict)) # print(recall_score(y_val, predict)) predictproba_final = lg.predict_proba(X_test) submit = pd.DataFrame( { 'CLIENTNUM':X_test_CL, 'Attrition_Flag':predictproba_final[:,1] } ) # submit.head() submit.to_csv('1.csv', index = False) # 제출 제대로 했나 확인 pd.read_csv('1.csv') # y_test = pd.read_csv('/content/y_test.csv') print(roc_auc_score(y_test, predictproba_final[:,1]))print(roc_auc_score(y_test, predictproba_final[:,1]))만 되고 print(roc_auc_score(y_test, predictproba[:,1]))는 안되는게 정상인가요?
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해결됨[퇴근후딴짓] 빅데이터 분석기사 실기 (작업형1,2,3)
5회기출 작업형2유형을 lightgbm을 활용하여 풀이할 때 질문드립니다
강사님 안녕하세요!시험 전 ligthgbm에 대해서도 말씀해주셔서 감사합니다 다름이 아니라 해당 알고리즘을 활용해보고자 5회기출 작업형 2문제에 풀어보았는데rmse값이 너무 큰 값이 나와.. 문제가 무엇인지 알고싶습니다 ㅠㅠ 제가 어디부분을 잘못 코드 작성하였는지 알 수 있을까요?자동차가격 예측문제로lgb 회귀로 작성하였습니다. 확인 부탁드립니다 감사합니다!
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해결됨재고시스템으로 알아보는 동시성이슈 해결방법
Redisson Client Lock
public void buy(String ticketName) throws InterruptedException { RLock lock = redissonClient.getLock(ticketName); try { boolean available = lock.tryLock(5, 1, TimeUnit.SECONDS); if (!available) { return; } ticketServiceWithRedisRedissonClientLock.buy(ticketName); } finally { if (lock.isLocked() && lock.isHeldByCurrentThread()) { lock.unlock(); } } }이 구조에서 tryLock에 대해서 5초동안 Lock 획득을 위해서 대기하고 Lock을 1초동안 점유하고 release하는 형식으로 알고있는데 만약에 쓰레드가 5초 동안 대기를 하더라도 최종적으로 Lock을 얻지 못한다면 return이 됨으로써 buy로직으로 못들어가는거 아닌가요?? 만약에 반드시 Lock을 얻고 buy로 들어가야만 하는 경우 Lock 재획득에 대한 로직을 따로 구현해야 하는건가요. 아니면 tryLock의 재시도에 대해서 제가 모르는 부분이 있는건가요?? public void buy(String ticketName) throws InterruptedException { final RLock lock = redissonClient.getLock(ticketName); final int maxRetryCount = 10; final int retryIntervalMillis = 1000; try { int retryCount = 0; boolean lockAcquired = lock.tryLock(5, 1, TimeUnit.SECONDS); while (!lockAcquired && retryCount < maxRetryCount) { log.info( "--> Thread [{}] Redis Distributed Lock (Redisson Client) 획득 대기", Thread.currentThread().getName() ); Thread.sleep(retryIntervalMillis); lockAcquired = lock.tryLock(5, 1, TimeUnit.SECONDS); retryCount++; } if (!lockAcquired) { log.info( "--> Thread [{}] Redis Distributed Lock (Redisson Client) 획득 실패", Thread.currentThread().getName() ); return; } ticketServiceWithRedisRedissonClientLock.buy(ticketName); } finally { if (lock.isLocked() && lock.isHeldByCurrentThread()) { lock.unlock(); } } }이런 방식으로 최대 재시도 횟수와 재시도 간 간격을 통해서 waitTime동안 Lock을 못얻을 경우 Lock자체를 다시 얻는 방식을 구현해보았고 waitTime=1, unit=ms로 변경하고 테스트했을 경우 정상적으로 retry가 됨을 확인했습니다. 이런 구조가 최선일까요??아니면 더 나은 방식이 있을까요?
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해결됨빅데이터분석기사 실기대비 (R 활용)
비지도학습
안녕하세요, 혹시 2유형에서 비지도학습(군집분석 등)이 나올 가능성이 있을까요?
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해결됨[퇴근후딴짓] 빅데이터 분석기사 실기 (작업형1,2,3)
작업형 3 풀이 관련
안녕하세요. 늘 좋은 강의 감사합니다.작업형3과 관련해 문의가 있습니다.우선 이번에 예시로 나온 문제 풀이의 경우 "μ d = 치료 후 혈압 - 치료 전 혈압"이기 때문에귀무가설(H0): μ d >=0 대립가설(H1): μ d < 0stats.ttest_rel(df["bp_after"],df["bp_before"],alternative="less")와 같이 코딩을 해야 한다고 알려주셨습니다. (bp_after와 bp_before 순서 헷깔리지 말기!) 그런데 작업형2 예시 중 독립표본 예시의 경우 아래의 가설 검증 시 풀이가 다음과 같았습니다.귀무가설(H0): μ 1 = μ 2, A집단과 B집단 시험 평균 점수는 같다대립가설(H1): μ 1 < μ 2, A집단이 B집단 보다 평균 점수가 작다stats.ttest_ind(df["Agroup"],df["Bgroup"],alternative="less")위의 코딩에서는 Bgroup, Agroup 순서가 아니고 반대인데, 조금 헷깔리더라구요. 설명해주시면 감사하겠습니다~
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해결됨자바(Java) 알고리즘 문제풀이 입문: 코딩테스트 대비
런타임에러 질문입니다
import java.util.*; class Main { public String solution(String need, String plan){ String answer = "YES"; Queue<Character> q = new LinkedList<>(); for(char x: need.toCharArray()){ q.offer(x); // 필수과목을 q에 넣어줌 } for(int i = 0; i<plan.length(); i++){ if(!q.isEmpty() && q.peek() == plan.charAt(i)){ //교육과정 첫 번째 과목 == 현수의과목 q.poll(); } } if(!q.isEmpty()){ answer ="NO"; } return answer; } public static void main(String[] args){ Main T = new Main(); Scanner kb = new Scanner(System.in); String a=kb.next(); String b=kb.next(); System.out.println(T.solution(a, b)); } }안녕하세요! 항상 양질의 강의 잘 듣고 있습니다!처음에 if(!q.isEmpty() && q.peek() == plan.charAt(i)) 부분에서 if(q.peek() == plan.charAt(i)) 로 조건문을 짰는데, 런타임 에러가 나서 !q.isEmpty() 를 붙였더니 정상적으로 잘 돌아가게 되었습니다. 웹서핑을 하다보니 큐에 자료가 없을 경우 q.peek()를 할 경우 exception이 나 런타임 에러가 난다고 하는 데 맞을까요?
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미해결10주완성 C++ 코딩테스트 | 알고리즘 코딩테스트
어떤 예외가 있는지 잘 모르겠네요
안녕하세요 예제를 입력했을때는 잘 출력이 되는데제출을 하면 틀렸다고 뜨네요 어떤 예외가 있을까요?http://boj.kr/c2fcd5fb097e4953a6b6c06f900cb025감사합니다!
