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) 2. 인프런의 질문 게시판과 자주 하는 질문에 없는 내용인가요? (예) 3. 질문 잘하기 메뉴얼을 읽어보셨나요? (예/아니오) [질문 내용] 05-Sep-2023 22:30:29.170 INFO [main] org.apache.catalina.startup.Catalina.start 서버가 [94] 밀리초 내에 시작되었습니다. Connected to server [2023-09-05 10:30:29,513] Artifact Gradle : hello : server-0.0.1-SNAPSHOT.war (exploded): Artifact is being deployed, please wait... [2023-09-05 10:30:29,550] Artifact Gradle : hello : server-0.0.1-SNAPSHOT.war (exploded): Error during artifact deployment. See server log for details. [2023-09-05 10:30:29,551] Artifact Gradle : hello : server-0.0.1-SNAPSHOT.war (exploded): com.intellij.javaee.oss.admin.jmx.JmxAdminException: com.intellij.execution.ExecutionException: D:\inflearn\boot-source-20230228\start\server\build\libs\exploded\server-0.0.1-SNAPSHOT.war not found for the web module. 톰캣을 run하면 위처럼 성공했다는 메시지와 실패했다는 메시지가 둘다 나오고 서버는 실행중인대 페이지들은 전부 404에러가 뜹니다. 근대 메시지대로 libs폴더안에 수동으로 exploded폴더를 만들고 빌드했던 war파일을 넣어주면 정상 작동합니다. 이건 톰캣서버가 자동으로 해주어야 하는대 왜 안되는 걸까요? jdk17.0.5 gradle7.5입니다
질문 답변을 제공하지만, 강의 비용에는 Q&A는 포함되어 있지 않습니다. 다만 실습이 안되거나, 잘못된 내용의 경우는 알려주시면 가능한 빠르게 조치하겠습니다! 안녕하세요. prometheus operator 부분을 공부하다가 궁금한 점이 있어 질문드립니다. 기존 prometheus에서는 servicediscorvey를 통해 target 정보를 작성하는 것으로 아는데(파일 형태) operator에서도 service discovery가 존재하는 건지 궁금합니다. service discovery가 있다면 어떻게 확인을 할 수 있을지(어디에 존재하는지,), operator에서도 똑같이 target 정보가 입력되는건지.. 알려주세요!
프로메테우스 다운받아 압축해제 후 prometheus-2.42.0.windows-amd64\prometheus.exe 실행시켯는데, 커맨드창이 잠깐 보였다가 사라지네요. 순식간에 사라집니다. 아래 화면이 나오지 않은데.. 혹시 무슨 문제가 있을까요.. 윈도우10 64비트 환경이에요. 아, 그리고 http://localhost:9090 으로 접속하니깐 아래 와 같은 로그인창이 떠요.
기존에 인텔리제이에서 자바 11버전으로 설정했었습니다. 그래서 자바 버전 설정 관련된 부분을 모두 17 버전으로 변경했는데도 빌드에 실패하네요.. 그래서 build.gradle 파일에서 아래 부분 주석 처리하니깐 빌드에 성공했습니다. 왜 그런지 이유를 알 수 있을까요? //sourceCompatibility = '17'
[질문 템플릿] 1. 강의 내용과 관련된 질문인가요? (예/아니오) 예 2. 인프런의 질문 게시판과 자주 하는 질문에 없는 내용인가요? (예/아니오) 예 3. 질문 잘하기 메뉴얼을 읽어보셨나요? (예/아니오) 예 [질문 내용] 스프링에서 datasource 빈을 생성할 때 application.yml 파일의 url, username .. 속성들을 매핑해 사용하는데, 이런 매핑역시 Environment 를 활용해서 내부적으로 매핑되는걸까요? 만약 그렇다면 우선순위가 높은 자바시스템속성으로 url 정보를 주면 yml 파일보다 자바시스템속성이 먼저 읽히게 되는게 맞을까요?
안녕하세요. 강의 잘 듣고 있습니다! 혹시 Recording Rules에 label matcher를 동적으로 사용하는 방법도 있을까요?(실무에 적용하려면 필요한 방법 같아 질문드립니다.) label에 대한 value들이 매우 많은 상황이라면 expr은 거의 동일하기 때문에 여러 rule를 생성하는 것은 옳지 않은 것 같습니다. 예를들어 아래와 같은 방식입니다. record : container:memory_working_set:topk3{pod=~"$pod"} expr : topk(3, sum(container_memory_working_set_bytes{pod=~"$pod"}/1024/1024) by (pod))
[질문 내용] 강의 내용 13분쯤 "일반로그와 에러로그는 구분해서 파일로 남기자"라는 내용이 있는데요. 에러로그를 구분해서 파일을 남기는건 알겠는데, 일반로그라고 함은 어떤범주인가요? 서버에서 출력되는 모든 로그들을 말하는건가요? System.out.println포함하여 서버를 가동했을때 나오는 모든 출력문인지, 아니면 log.info 처럼 개발자가 의도하여 찍은 로그중 에러/경고가 아닌 로그를 의미하는건지 궁금합니다.
질문 답변을 제공하지만, 강의 비용에는 Q&A는 포함되어 있지 않습니다. 다만 실습이 안되거나, 잘못된 내용의 경우는 알려주시면 가능한 빠르게 조치하겠습니다! [질문 하기] scrape interval을 15초로 설정하였는데, 각 node에서 발생되는 Data를 15초 마다 수집한다고 생각하면 되는걸까요? scrape interval의 최소 수치는 얼마까지 가능한 걸까요? 대량의 node를 대상으로 scrape interval을 1초로 할 경우Prometheus Server의 어떤 Resource를 얼마 만큼 증가하면 되는 건가요?
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] build.gradle 파일 오픈을 하면 실행 로그 창에 Unexpected lock protocol found in lock file. Expected 3, found 0. 해당 오류문구가 뜨고 이후, hello 패키지 밑에 hello.servlet 패키지 파일 안에 java 클래스 파일이 생성이 안되는데 어디서 잘못된 것인지 모르겠습니다.. 강의자료 소스파일을 다시 다운받아서 실행했는데도 오류는 계속 발생하는 상황입니다.. 추가로, 소스파일 내부에 강의 내용에서는 build 폴더가 따로 있는데, 제가 받은 강의자료 소스파일에는 build 파일이 없습니다.
@WebServlet가 잘 이해가 가지 않아서 질문드립니다. 1) @WebServlet 애노테이션은 web.xml과 연동? 된다고 생각하면 될까요? 2) @WebServlet을 사용한 클래스 내에 서블릿 초기화 처럼 디스패처 서블릿을 등록하여도 될까요? 3) @WebServlet은 web.xml 사용시 사용하는 애노테이션이고, 나머지 서블릿 초기화들은 web.xml 대신 사용하는 프로그래밍 초기화라고 생각하면 될까요?
위에 SPRING 은 표기됐니다. 서버 실행에는 문제가 없는데 DB에 문제가 있네요 PreparedStatementCallback; SQL [insert into member(member_id, name) values(?,?)]; NULL not allowed for column "MEMBER_ID"; SQL statement: insert into member(member_id, name) values(?,?) [23502-214] org.springframework.dao.DataIntegrityViolationException: PreparedStatementCallback; SQL [insert into member(member_id, name) values(?,?)]; NULL not allowed for column "MEMBER_ID"; SQL statement: insert into member(member_id, name) values(?,?) [23502-214] at app//org.springframework.jdbc.support.SQLExceptionSubclassTranslator.doTranslate(SQLExceptionSubclassTranslator.java:95) at app//org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:70) at app//org.springframework.jdbc.core.JdbcTemplate.translateException(JdbcTemplate.java:1538) at app//org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:667) at app//org.springframework.jdbc.core.JdbcTemplate.update(JdbcTemplate.java:960) at app//org.springframework.jdbc.core.JdbcTemplate.update(JdbcTemplate.java:1015) at app//org.springframework.jdbc.core.JdbcTemplate.update(JdbcTemplate.java:1025) at app//hello.member.MemberRepository.save(MemberRepository.java:23) at java.base@17.0.7/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base@17.0.7/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) at java.base@17.0.7/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base@17.0.7/java.lang.reflect.Method.invoke(Method.java:568) at app//org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:343) at app//org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:196) at app//org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163) at app//org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:752) at app//org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:137) at app//org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:184) at app//org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:752) at app//org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:703) at app//hello.member.MemberRepository$$SpringCGLIB$$0.save(<generated>) at app//hello.member.MemberRepositoryTest.memberTest(MemberRepositoryTest.java:21) at java.base@17.0.7/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base@17.0.7/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) at java.base@17.0.7/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base@17.0.7/java.lang.reflect.Method.invoke(Method.java:568) at app//org.junit.platform.commons.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:727) at app//org.junit.jupiter.engine.execution.MethodInvocation.proceed(MethodInvocation.java:60) at app//org.junit.jupiter.engine.execution.InvocationInterceptorChain$ValidatingInvocation.proceed(InvocationInterceptorChain.java:131) at app//org.junit.jupiter.engine.extension.TimeoutExtension.intercept(TimeoutExtension.java:156) at app//org.junit.jupiter.engine.extension.TimeoutExtension.interceptTestableMethod(TimeoutExtension.java:147) at app//org.junit.jupiter.engine.extension.TimeoutExtension.interceptTestMethod(TimeoutExtension.java:86) at app//org.junit.jupiter.engine.execution.InterceptingExecutableInvoker$ReflectiveInterceptorCall.lambda$ofVoidMethod$0(InterceptingExecutableInvoker.java:103) at app//org.junit.jupiter.engine.execution.InterceptingExecutableInvoker.lambda$invoke$0(InterceptingExecutableInvoker.java:93) at app//org.junit.jupiter.engine.execution.InvocationInterceptorChain$InterceptedInvocation.proceed(InvocationInterceptorChain.java:106) at app//org.junit.jupiter.engine.execution.InvocationInterceptorChain.proceed(InvocationInterceptorChain.java:64) at app//org.junit.jupiter.engine.execution.InvocationInterceptorChain.chainAndInvoke(InvocationInterceptorChain.java:45) at app//org.junit.jupiter.engine.execution.InvocationInterceptorChain.invoke(InvocationInterceptorChain.java:37) at app//org.junit.jupiter.engine.execution.InterceptingExecutableInvoker.invoke(InterceptingExecutableInvoker.java:92) at app//org.junit.jupiter.engine.execution.InterceptingExecutableInvoker.invoke(InterceptingExecutableInvoker.java:86) at app//org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeTestMethod$7(TestMethodTestDescriptor.java:217) at app//org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at app//org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.invokeTestMethod(TestMethodTestDescriptor.java:213) at app//org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:138) at app//org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:68) at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:151) at app//org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141) at app//org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137) at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139) at app//org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138) at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95) at java.base@17.0.7/java.util.ArrayList.forEach(ArrayList.java:1511) at app//org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41) at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155) at app//org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141) at app//org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137) at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139) at app//org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138) at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95) at java.base@17.0.7/java.util.ArrayList.forEach(ArrayList.java:1511) at app//org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41) at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155) at app//org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141) at app//org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137) at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139) at app//org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138) at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95) at app//org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.submit(SameThreadHierarchicalTestExecutorService.java:35) at app//org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:57) at app//org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:54) at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:107) at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:88) at org.junit.platform.launcher.core.EngineExecutionOrchestrator.lambda$execute$0(EngineExecutionOrchestrator.java:54) at org.junit.platform.launcher.core.EngineExecutionOrchestrator.withInterceptedStreams(EngineExecutionOrchestrator.java:67) at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:52) at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:114) at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:86) at org.junit.platform.launcher.core.DefaultLauncherSession$DelegatingLauncher.execute(DefaultLauncherSession.java:86) at org.junit.platform.launcher.core.SessionPerRequestLauncher.execute(SessionPerRequestLauncher.java:53) at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor$CollectAllTestClassesExecutor.processAllTestClasses(JUnitPlatformTestClassProcessor.java:99) at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor$CollectAllTestClassesExecutor.access$000(JUnitPlatformTestClassProcessor.java:79) at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor.stop(JUnitPlatformTestClassProcessor.java:75) at org.gradle.api.internal.tasks.testing.SuiteTestClassProcessor.stop(SuiteTestClassProcessor.java:61) at java.base@17.0.7/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base@17.0.7/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) at java.base@17.0.7/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base@17.0.7/java.lang.reflect.Method.invoke(Method.java:568) at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:36) at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24) at org.gradle.internal.dispatch.ContextClassLoaderDispatch.dispatch(ContextClassLoaderDispatch.java:33) at org.gradle.internal.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:94) at jdk.proxy1/jdk.proxy1.$Proxy2.stop(Unknown Source) at org.gradle.api.internal.tasks.testing.worker.TestWorker$3.run(TestWorker.java:193) at org.gradle.api.internal.tasks.testing.worker.TestWorker.executeAndMaintainThreadName(TestWorker.java:129) at org.gradle.api.internal.tasks.testing.worker.TestWorker.execute(TestWorker.java:100) at org.gradle.api.internal.tasks.testing.worker.TestWorker.execute(TestWorker.java:60) at org.gradle.process.internal.worker.child.ActionExecutionWorker.execute(ActionExecutionWorker.java:56) at org.gradle.process.internal.worker.child.SystemApplicationClassLoaderWorker.call(SystemApplicationClassLoaderWorker.java:133) at org.gradle.process.internal.worker.child.SystemApplicationClassLoaderWorker.call(SystemApplicationClassLoaderWorker.java:71) at app//worker.org.gradle.process.internal.worker.GradleWorkerMain.run(GradleWorkerMain.java:69) at app//worker.org.gradle.process.internal.worker.GradleWorkerMain.main(GradleWorkerMain.java:74) Caused by: org.h2.jdbc.JdbcSQLIntegrityConstraintViolationException: NULL not allowed for column "MEMBER_ID"; SQL statement: insert into member(member_id, name) values(?,?) [23502-214] at app//org.h2.message.DbException.getJdbcSQLException(DbException.java:508) at app//org.h2.message.DbException.getJdbcSQLException(DbException.java:477) at app//org.h2.message.DbException.get(DbException.java:223) at app//org.h2.message.DbException.get(DbException.java:199) at app//org.h2.table.Column.validateConvertUpdateSequence(Column.java:365) at app//org.h2.table.Table.convertInsertRow(Table.java:926) at app//org.h2.command.dml.Insert.insertRows(Insert.java:167) at app//org.h2.command.dml.Insert.update(Insert.java:135) at app//org.h2.command.dml.DataChangeStatement.update(DataChangeStatement.java:74) at app//org.h2.command.CommandContainer.update(CommandContainer.java:169) at app//org.h2.command.Command.executeUpdate(Command.java:252) at app//org.h2.jdbc.JdbcPreparedStatement.executeUpdateInternal(JdbcPreparedStatement.java:209) at app//org.h2.jdbc.JdbcPreparedStatement.executeUpdate(JdbcPreparedStatement.java:169) at app//com.zaxxer.hikari.pool.ProxyPreparedStatement.executeUpdate(ProxyPreparedStatement.java:61) at app//com.zaxxer.hikari.pool.HikariProxyPreparedStatement.executeUpdate(HikariProxyPreparedStatement.java) at app//org.springframework.jdbc.core.JdbcTemplate.lambda$update$2(JdbcTemplate.java:965) at app//org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:651) ... 103 more MemberRepositoryTest > memberTest() FAILED org.springframework.dao.DataIntegrityViolationException at MemberRepositoryTest.java:21 Caused by: org.h2.jdbc.JdbcSQLIntegrityConstraintViolationException at MemberRepositoryTest.java:21 2023-07-21T02:27:25.304+09:00 INFO 12264 --- [ionShutdownHook] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Shutdown initiated... 2023-07-21T02:27:25.306+09:00 INFO 12264 --- [ionShutdownHook] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Shutdown completed. 1 test completed, 1 failed > Task :test FAILED FAILURE: Build failed with an exception. * What went wrong: Execution failed for task ':test'. > There were failing tests. See the report at: file:///C:/Users/seongmun/spring/start/autoconfig/build/reports/tests/test/index.html * Try: > Run with --stacktrace option to get the stack trace. > Run with --info or --debug option to get more log output. > Run with --scan to get full insights. * Get more help at https://help.gradle.org BUILD FAILED in 5s 4 actionable tasks: 2 executed, 2 up-to-date 테스트 코드입니다. 에러를 찾으려고 아래부터 주석처리했는데, save에서 에러가 뜨더라구요! save도 영상처럼 그대로 작성했는데, 어디서 에러가 뜬걸까요?
라이브러리를 생성하는데 궁금한 점이 있습니다. 라이브러리 안에는 A 클래스, B 클래스가 존재하고 여기서 외부로는 B 클래스만을 밖으로 내보내고 싶다고 할때는 어떤식으로 해야할까요? 즉 A 클래스는 라이브러리 내부에서만 사용하도록 하고 B 클래스를 통해 외부에서 사용가능토록 하는 것입니다. default 접근 제어자를 생각해보았으나 라이브러리에 패키지가 여러 개일 경우 개발할 때 불편함이 있다고 생각되었습니다. 항상 좋은 강의 감사드립니다 :)
자료 코드 복붙해도 에러가 그대로네요... > Task :EmbedTomcatServletMain.main() FAILED EmbedTomcatServletMain.main 7�� 14, 2023 1:53:21 ���� org.apache.coyote.AbstractProtocol init INFO: Initializing ProtocolHandler ["http-nio-8080"] 7�� 14, 2023 1:53:21 ���� org.apache.catalina.core.StandardService startInternal INFO: Starting service [Tomcat] 7�� 14, 2023 1:53:21 ���� org.apache.catalina.core.StandardEngine startInternal INFO: Starting Servlet engine: [Apache Tomcat/10.1.5] 7�� 14, 2023 1:53:21 ���� org.apache.catalina.core.ContainerBase startInternal SEVERE: A child container failed during start java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [org.apache.catalina.webresources.StandardRoot@35cabb2a] at java.base/java.util.concurrent.FutureTask.report(FutureTask.java:122) at java.base/java.util.concurrent.FutureTask.get(FutureTask.java:191) at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:923) at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:886) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1393) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1383) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75) at java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:145) at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:916) at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:252) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) at org.apache.catalina.core.StandardService.startInternal(StandardService.java:430) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:926) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) at org.apache.catalina.startup.Tomcat.start(Tomcat.java:485) at hello.embed.EmbedTomcatServletMain.main(EmbedTomcatServletMain.java:21) Caused by: org.apache.catalina.LifecycleException: Failed to start component [org.apache.catalina.webresources.StandardRoot@35cabb2a] at org.apache.catalina.util.LifecycleBase.handleSubClassException(LifecycleBase.java:440) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:198) at org.apache.catalina.core.StandardContext.resourcesStart(StandardContext.java:4829) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:4962) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1393) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1383) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75) at java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:145) at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:916) ... 16 more Caused by: java.lang.IllegalArgumentException: The main resource set specified [C:\Users\�Ӹ�\OneDrive\���� ȭ��\Spring\start\embed\tomcat.8080\webapps\] is not valid at org.apache.catalina.webresources.StandardRoot.createMainResourceSet(StandardRoot.java:777) at org.apache.catalina.webresources.StandardRoot.startInternal(StandardRoot.java:734) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ... 25 more 7�� 14, 2023 1:53:21 ���� org.apache.catalina.core.ContainerBase startInternal SEVERE: A child container failed during start java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: A child container failed during start at java.base/java.util.concurrent.FutureTask.report(FutureTask.java:122) at java.base/java.util.concurrent.FutureTask.get(FutureTask.java:191) at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:923) at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:252) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) at org.apache.catalina.core.StandardService.startInternal(StandardService.java:430) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:926) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) at org.apache.catalina.startup.Tomcat.start(Tomcat.java:485) at hello.embed.EmbedTomcatServletMain.main(EmbedTomcatServletMain.java:21) Caused by: org.apache.catalina.LifecycleException: A child container failed during start at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:935) at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:886) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1393) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1383) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75) at java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:145) at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:916) ... 8 more Caused by: java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [org.apache.catalina.webresources.StandardRoot@35cabb2a] at java.base/java.util.concurrent.FutureTask.report(FutureTask.java:122) at java.base/java.util.concurrent.FutureTask.get(FutureTask.java:191) at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:923) ... 16 more Caused by: org.apache.catalina.LifecycleException: Failed to start component [org.apache.catalina.webresources.StandardRoot@35cabb2a] at org.apache.catalina.util.LifecycleBase.handleSubClassException(LifecycleBase.java:440) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:198) at org.apache.catalina.core.StandardContext.resourcesStart(StandardContext.java:4829) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:4962) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) Caused by: org.apache.catalina.LifecycleException: Failed to start component [org.apache.catalina.webresources.StandardRoot@35cabb2a] at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1393) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1383) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75) at java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:145) at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:916) ... 16 more Caused by: java.lang.IllegalArgumentException: The main resource set specified [C:\Users\�Ӹ�\OneDrive\���� ȭ��\Spring\start\embed\tomcat.8080\webapps\] is not valid at org.apache.catalina.webresources.StandardRoot.createMainResourceSet(StandardRoot.java:777) at org.apache.catalina.webresources.StandardRoot.startInternal(StandardRoot.java:734) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) Caused by: java.lang.IllegalArgumentException: The main resource set specified [C:\Users\�Ӹ�\OneDrive\���� ȭ��\Spring\start\embed\tomcat.8080\webapps\] is not valid ... 25 more Exception in thread "main" org.apache.catalina.LifecycleException: A child container failed during start at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:935) at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:252) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) at org.apache.catalina.core.StandardService.startInternal(StandardService.java:430) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:926) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) at org.apache.catalina.startup.Tomcat.start(Tomcat.java:485) at hello.embed.EmbedTomcatServletMain.main(EmbedTomcatServletMain.java:21) Caused by: java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: A child container failed during start at java.base/java.util.concurrent.FutureTask.report(FutureTask.java:122) at java.base/java.util.concurrent.FutureTask.get(FutureTask.java:191) at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:923) ... 8 more Caused by: org.apache.catalina.LifecycleException: A child container failed during start at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:935) at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:886) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1393) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1383) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75) Caused by: org.apache.catalina.LifecycleException: A child container failed during start at java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:145) at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:916) ... 8 more Caused by: java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [org.apache.catalina.webresources.StandardRoot@35cabb2a] at java.base/java.util.concurrent.FutureTask.report(FutureTask.java:122) Caused by: java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [org.apache.catalina.webresources.StandardRoot@35cabb2a] at java.base/java.util.concurrent.FutureTask.get(FutureTask.java:191) at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:923) ... 16 more Caused by: org.apache.catalina.LifecycleException: Failed to start component [org.apache.catalina.webresources.StandardRoot@35cabb2a] Caused by: org.apache.catalina.LifecycleException: Failed to start component [org.apache.catalina.webresources.StandardRoot@35cabb2a] at org.apache.catalina.util.LifecycleBase.handleSubClassException(LifecycleBase.java:440) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:198) at org.apache.catalina.core.StandardContext.resourcesStart(StandardContext.java:4829) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:4962) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1393) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1383) Caused by: java.lang.IllegalArgumentException: The main resource set specified [C:\Users\�Ӹ�\OneDrive\���� ȭ��\Spring\start\embed\tomcat.8080\webapps\] is not valid at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75) at java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:145) at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:916) ... 16 more Caused by: java.lang.IllegalArgumentException: The main resource set specified [C:\Users\�Ӹ�\OneDrive\���� ȭ��\Spring\start\embed\tomcat.8080\webapps\] is not valid at org.apache.catalina.webresources.StandardRoot.createMainResourceSet(StandardRoot.java:777) Caused by: java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: A child container failed during start at org.apache.catalina.webresources.StandardRoot.startInternal(StandardRoot.java:734) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ... 25 more Caused by: org.apache.catalina.LifecycleException: A child container failed during start Caused by: java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [org.apache.catalina.webresources.StandardRoot@35cabb2a] Caused by: org.apache.catalina.LifecycleException: Failed to start component [org.apache.catalina.webresources.StandardRoot@35cabb2a] Caused by: java.lang.IllegalArgumentException: The main resource set specified [C:\Users\�Ӹ�\OneDrive\���� ȭ��\Spring\start\embed\tomcat.8080\webapps\] is not valid Execution failed for task ':EmbedTomcatServletMain.main()'. > Process 'command 'C:/Users/java/jdk-17.0.7/bin/java.exe'' finished with non-zero exit value 1 * Try: > Run with --stacktrace option to get the stack trace. > Run with --info or --debug option to get more log output. > Run with --scan to get full insights. 사진은 복붙한 코드입니다. 마지막 줄 tomcat.start()만 없으면, 에러는 안뜹니다. LifecycleException 에러로 보이는데,, https://www.inflearn.com/questions/5283/%EC%8B%AC%EA%B0%81-a-child-container-failed-during-start 유사한 에러가 이거 같은데, 봐도 기존 코드가 달라 해결법을 모르겠네요.. 윈도우 11 // 인텔리제이 23.01 // 외장 라이브러리 : spring-core-6.0.4
