자바 jpa 같은 세션에 오브젝트가 있다는 오류 입니다...

Question

안녕하세요 이제 막 jpa강의를 들으면서 공부하게 된 신입입니다... 프로젝트 관리 목적으로 토이 프로젝트 만들어 보는 중 인터넷에 찾아보다 정말 모르겠어서 선배님들께 질문 드리고 싶어서 글을 적어봅니다... org.hibernate.NonUniqueObjectException: A different object with the same identifier value was already associated with the session : [Ocean.Pms.domain.Charger#Charger{chargerId=8121546, project=Project{prjctId=2, user=Ocean.Pms.domain.User@16a20638, upperPrjctId=1, prjctNm='', prjctPrgrssCode=LOADING, prjctSttusCode=SUCCESS, prjctBeginDe=2024-05-02, prjctEndDe=2024-05-29, registerId='test', registerIp='testIp', registDt=2024-05-20T16:06:15.416547700, upduserId='test', upduserIp='testIp', updt_dt=2024-05-20T16:06:15.416547700, prjctCost='0'}, chargerNm='이근령', registerId='null', registerIp='null', registDt=null, upduserId='null', upduserIp='null', updt_dt=null}] at org.hibernate.event.internal.AbstractSaveEventListener.entityKey(AbstractSaveEventListener.java:232) ~[hibernate-core-6.4.4.Final.jar:6.4.4.Final] at org.hibernate.event.internal.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:214) ~[hibernate-core-6.4.4.Final.jar:6.4.4.Final] at org.hibernate.event.internal.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:134) ~[hibernate-core-6.4.4.Final.jar:6.4.4.Final] at org.hibernate.event.internal.DefaultPersistEventListener.entityIsTransient(DefaultPersistEventListener.java:175) ~[hibernate-core-6.4.4.Final.jar:6.4.4.Final] at org.hibernate.event.internal.DefaultPersistEventListener.persist(DefaultPersistEventListener.java:93) ~[hibernate-core-6.4.4.Final.jar:6.4.4.Final] at org.hibernate.event.internal.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:77) ~[hibernate-core-6.4.4.Final.jar:6.4.4.Final] at org.hibernate.event.internal.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:54) ~[hibernate-core-6.4.4.Final.jar:6.4.4.Final] at org.hibernate.event.service.internal.EventListenerGroupImpl.fireEventOnEachListener(EventListenerGroupImpl.java:127) ~[hibernate-core-6.4.4.Final.jar:6.4.4.Final] at org.hibernate.internal.SessionImpl.firePersist(SessionImpl.java:754) ~[hibernate-core-6.4.4.Final.jar:6.4.4.Final] at org.hibernate.internal.SessionImpl.persist(SessionImpl.java:738) ~[hibernate-core-6.4.4.Final.jar:6.4.4.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$ExtendedEntityManagerInvocationHandler.invoke(ExtendedEntityManagerCreator.java:364) ~[spring-orm-6.1.5.jar:6.1.5] at jdk.proxy4/jdk.proxy4.$Proxy115.persist(Unknown Source) ~[na:na] 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.SharedEntityManagerCreator$SharedEntityManagerInvocationHandler.invoke(SharedEntityManagerCreator.java:319) ~[spring-orm-6.1.5.jar:6.1.5] at jdk.proxy4/jdk.proxy4.$Proxy115.persist(Unknown Source) ~[na:na] at Ocean.Pms.repository.ChargerRepository.saveCharger(ChargerRepository.java:17) ~[classes/:na] 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.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:351) ~[spring-aop-6.1.5.jar:6.1.5] at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:196) ~[spring-aop-6.1.5.jar:6.1.5] at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163) ~[spring-aop-6.1.5.jar:6.1.5] at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:765) ~[spring-aop-6.1.5.jar:6.1.5] at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:137) ~[spring-tx-6.1.5.jar:6.1.5] at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:184) ~[spring-aop-6.1.5.jar:6.1.5] at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:765) ~[spring-aop-6.1.5.jar:6.1.5] at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:717) ~[spring-aop-6.1.5.jar:6.1.5] at Ocean.Pms.repository.ChargerRepository$$SpringCGLIB$$0.saveCharger() ~[classes/:na] at Ocean.Pms.service.ProjectService.saveProject(ProjectService.java:108) ~[classes/:na] 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.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:351) ~[spring-aop-6.1.5.jar:6.1.5] at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:196) ~[spring-aop-6.1.5.jar:6.1.5] at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163) ~[spring-aop-6.1.5.jar:6.1.5] at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:765) ~[spring-aop-6.1.5.jar:6.1.5] at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:123) ~[spring-tx-6.1.5.jar:6.1.5] at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:392) ~[spring-tx-6.1.5.jar:6.1.5] at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:119) ~[spring-tx-6.1.5.jar:6.1.5] at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:184) ~[spring-aop-6.1.5.jar:6.1.5] at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:765) ~[spring-aop-6.1.5.jar:6.1.5] at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:717) ~[spring-aop-6.1.5.jar:6.1.5] at Ocean.Pms.service.ProjectService$$SpringCGLIB$$0.saveProject() ~[classes/:na] at Ocean.Pms.Controller.OceanPmsController.saveData(OceanPmsController.java:125) ~[classes/:na] 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.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:255) ~[spring-web-6.1.5.jar:6.1.5] at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:188) ~[spring-web-6.1.5.jar:6.1.5] at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:118) ~[spring-webmvc-6.1.5.jar:6.1.5] at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:925) ~[spring-webmvc-6.1.5.jar:6.1.5] at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:830) ~[spring-webmvc-6.1.5.jar:6.1.5] at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-6.1.5.jar:6.1.5] at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1089) ~[spring-webmvc-6.1.5.jar:6.1.5] at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:979) ~[spring-webmvc-6.1.5.jar:6.1.5] at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1014) ~[spring-webmvc-6.1.5.jar:6.1.5] at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:914) ~[spring-webmvc-6.1.5.jar:6.1.5] at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:590) ~[tomcat-embed-core-10.1.19.jar:6.0] at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:885) ~[spring-webmvc-6.1.5.jar:6.1.5] at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:658) ~[tomcat-embed-core-10.1.19.jar:6.0] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:205) ~[tomcat-embed-core-10.1.19.jar:10.1.19] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149) ~[tomcat-embed-core-10.1.19.jar:10.1.19] at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51) ~[tomcat-embed-websocket-10.1.19.jar:10.1.19] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174) ~[tomcat-embed-core-10.1.19.jar:10.1.19] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149) ~[tomcat-embed-core-10.1.19.jar:10.1.19] at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-6.1.5.jar:6.1.5] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116) ~[spring-web-6.1.5.jar:6.1.5] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174) ~[tomcat-embed-core-10.1.19.jar:10.1.19] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149) ~[tomcat-embed-core-10.1.19.jar:10.1.19] at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[spring-web-6.1.5.jar:6.1.5] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116) ~[spring-web-6.1.5.jar:6.1.5] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174) ~[tomcat-embed-core-10.1.19.jar:10.1.19] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149) ~[tomcat-embed-core-10.1.19.jar:10.1.19] at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-6.1.5.jar:6.1.5] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116) ~[spring-web-6.1.5.jar:6.1.5] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174) ~[tomcat-embed-core-10.1.19.jar:10.1.19] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149) ~[tomcat-embed-core-10.1.19.jar:10.1.19] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:167) ~[tomcat-embed-core-10.1.19.jar:10.1.19] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:90) ~[tomcat-embed-core-10.1.19.jar:10.1.19] at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:482) ~[tomcat-embed-core-10.1.19.jar:10.1.19] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:115) ~[tomcat-embed-core-10.1.19.jar:10.1.19] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:93) ~[tomcat-embed-core-10.1.19.jar:10.1.19] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) ~[tomcat-embed-core-10.1.19.jar:10.1.19] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:344) ~[tomcat-embed-core-10.1.19.jar:10.1.19] at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:391) ~[tomcat-embed-core-10.1.19.jar:10.1.19] at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63) ~[tomcat-embed-core-10.1.19.jar:10.1.19] at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:896) ~[tomcat-embed-core-10.1.19.jar:10.1.19] at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1744) ~[tomcat-embed-core-10.1.19.jar:10.1.19] at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52) ~[tomcat-embed-core-10.1.19.jar:10.1.19] at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191) ~[tomcat-embed-core-10.1.19.jar:10.1.19] at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659) ~[tomcat-embed-core-10.1.19.jar:10.1.19] at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:63) ~[tomcat-embed-core-10.1.19.jar:10.1.19] at java.base/java.lang.Thread.run(Thread.java:840) ~[na:na] 먼저 오류는 이렇게 찍히는데 해당 오류는 같은 세션에 같은 오브젝트가 있어서 해당 오브 젝트를 재사용 해야 한다고 인터넷 글을 보았는데 디버그도 찍어서 for (Project project : projects) { project.setUpperPrjctId(upperPrjctId); projectRepository.saveProjects(project); for (Charger charger : chargers.get(index)) { chargerRepository.saveCharger(charger); } index++; } 이부분에서 위에서 프로젝트 저장하고 아래서 charger 저장할때 프로젝트 오브젝트가 두개 있는걸 알았지만 어떻게 재사용해야 할지를 모르겠어서 질문 드립니다. package Ocean.Pms.domain; import com.fasterxml.jackson.annotation.JsonIgnore; import jakarta.persistence.*; import lombok.Getter; import lombok.Setter; import java.time.LocalDateTime; @Entity @Getter @Setter @Table(name="tn_pms_charger") public class Charger { private Long chargerId; @Id @JsonIgnore @ManyToOne(fetch = FetchType.LAZY) @JoinColumns({ @JoinColumn(name = "prjct_id", referencedColumnName = "prjctId"), @JoinColumn(name = "user_id", referencedColumnName = "user_id") }) private Project project; private String chargerNm; private String registerId; private String registerIp; private LocalDateTime registDt; private String upduserId; private String upduserIp; private LocalDateTime updt_dt; public void setProjects(Project project){ this.project = project; project.setUser(this.project.getUser()); } @Override public String toString() { return "Charger{" + "chargerId=" + chargerId + ", project=" + project + ", chargerNm='" + chargerNm + '\'' + ", registerId='" + registerId + '\'' + ", registerIp='" + registerIp + '\'' + ", registDt=" + registDt + ", upduserId='" + upduserId + '\'' + ", upduserIp='" + upduserIp + '\'' + ", updt_dt=" + updt_dt + '}'; } } package Ocean.Pms.domain; import com.fasterxml.jackson.annotation.JsonFormat; import com.fasterxml.jackson.annotation.JsonIgnore; import jakarta.persistence.*; import lombok.Getter; import lombok.Setter; import java.time.LocalDate; import java.time.LocalDateTime; import java.util.Date; @Entity @Getter @Setter @Table(name = "tn_pms_prjct") public class Project { @Id @GeneratedValue private Long prjctId; @Id @JsonIgnore @ManyToOne(fetch = FetchType.LAZY) @JoinColumn(name = "user_id") private User user; private Long upperPrjctId; private String prjctNm; private PrjctPrgrssCode prjctPrgrssCode; private PrjctSttusCode prjctSttusCode; private LocalDate prjctBeginDe; private LocalDate prjctEndDe; private String registerId; private String registerIp; private LocalDateTime registDt; private String upduserId; private String upduserIp; private LocalDateTime updt_dt; private String prjctCost; public Project(Long prjctId, User user, Long upperPrjctId, String prjctNm, PrjctPrgrssCode prjctPrgrssCode, PrjctSttusCode prjctSttusCode, LocalDate prjctBeginDe, LocalDate prjctEndDe, String registerId, String registerIp, LocalDateTime registDt, String upduserId, String upduserIp, LocalDateTime updt_dt, String prjctCost) { this.prjctId = prjctId; this.user = user; this.upperPrjctId = upperPrjctId; this.prjctNm = prjctNm; this.prjctPrgrssCode = prjctPrgrssCode; this.prjctSttusCode = prjctSttusCode; this.prjctBeginDe = prjctBeginDe; this.prjctEndDe = prjctEndDe; this.registerId = registerId; this.registerIp = registerIp; this.registDt = registDt; this.upduserId = upduserId; this.upduserIp = upduserIp; this.updt_dt = updt_dt; this.prjctCost = prjctCost; } public Project() { } public void setUser(User user){ this.user = user; user.getProjectList().add(this); } @Override public String toString() { return "Project{" + "prjctId=" + prjctId + ", user=" + user + ", upperPrjctId=" + upperPrjctId + ", prjctNm='" + prjctNm + '\'' + ", prjctPrgrssCode=" + prjctPrgrssCode + ", prjctSttusCode=" + prjctSttusCode + ", prjctBeginDe=" + prjctBeginDe + ", prjctEndDe=" + prjctEndDe + ", registerId='" + registerId + '\'' + ", registerIp='" + registerIp + '\'' + ", registDt=" + registDt + ", upduserId='" + upduserId + '\'' + ", upduserIp='" + upduserIp + '\'' + ", updt_dt=" + updt_dt + ", prjctCost='" + prjctCost + '\'' + '}'; } }package Ocean.Pms.service; import Ocean.Pms.domain.Charger; import Ocean.Pms.domain.PrjctPrgrssCode; import Ocean.Pms.domain.Project; import Ocean.Pms.domain.User; import Ocean.Pms.dto.LoginCanbanDTO; import Ocean.Pms.repository.ChargerRepository; import Ocean.Pms.repository.ProjectRepository; import Ocean.Pms.repository.UserRepository; import lombok.RequiredArgsConstructor; import lombok.extern.slf4j.Slf4j; import org.springframework.stereotype.Service; import org.springframework.transaction.annotation.Transactional; import java.lang.reflect.Array; import java.time.LocalDate; import java.time.LocalDateTime; import java.time.format.DateTimeFormatter; import java.util.ArrayList; import java.util.Arrays; import java.util.List; import java.util.Map; import java.util.function.Function; import java.util.stream.Collectors; @Slf4j @Service @RequiredArgsConstructor @Transactional(readOnly = true) public class ProjectService { private final ProjectRepository projectRepository; private final ChargerRepository chargerRepository; private final UserRepository userRepository; @Transactional public void saveProject(ArrayList projectList, String userId , String ip){ ArrayList projects = new ArrayList<>(); ArrayList> chargers = new ArrayList<>(); DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd"); /// 파싱을 위한 날짜 형식 User user = userRepository.findUser(userId); // 상위 프로젝트들 세팅 for (LoginCanbanDTO loginCanbanDTO : projectList) { Project project = new Project(); LocalDate beginDe = LocalDate.parse(loginCanbanDTO.getPrjctBeginDe(), formatter); LocalDate endDe = LocalDate.parse(loginCanbanDTO.getPrjctEndDe(), formatter); project.setUser(user); project.setPrjctNm(loginCanbanDTO.getPrjctNm()); project.setPrjctSttusCode(loginCanbanDTO.getPrjctSttusCode()); project.setPrjctPrgrssCode(loginCanbanDTO.getPrjctPrgrssCode()); project.setPrjctCost(String.valueOf(loginCanbanDTO.getPrjctCost())); project.setPrjctBeginDe(beginDe); project.setPrjctEndDe(endDe); project.setRegisterId(user.getUserId()); project.setRegisterIp(ip); project.setRegistDt(LocalDateTime.now()); project.setUpduserId(user.getUserId()); project.setUpduserIp(ip); project.setUpdt_dt(LocalDateTime.now()); projects.add(project); // 참여자 목록 로직 ArrayList chargerList = new ArrayList<>(); for (Charger charger : loginCanbanDTO.getChargers()) { Charger newCharger = new Charger(); // 동일한 인스턴스 재사용 방지 newCharger.setChargerId(charger.getChargerId()); newCharger.setChargerNm(charger.getChargerNm()); chargerList.add(newCharger); } chargers.add(chargerList); } if(chargers.get(0).isEmpty()){ Charger upperCharger = new Charger(); upperCharger.setProject(projects.get(0)); upperCharger.setChargerId(10000L); // 해당부분 담당자 수정 upperCharger.setChargerNm(userId); // 해당부분 담당자 수정 chargers.get(0).add(upperCharger); } // 상위 프로젝트에 대한 하위 프로젝트 참여자 가져오기 Long upperPrjctId = projectRepository.saveProjects(projects.get(0)); int index = 0; for (Project project : projects) { project.setUpperPrjctId(upperPrjctId); projectRepository.saveProjects(project); for (Charger charger : chargers.get(index)) { chargerRepository.saveCharger(charger); } index++; } log.info("save datas count : {}", projectList.size()); } public ArrayList>> findUpperProject(){ //ArrayList<> 로 감싸야함 ArrayList>> result = new ArrayList<>(); Map> loginDTOresult = Arrays.stream(PrjctPrgrssCode.values()) .collect(Collectors.toMap( Function.identity(), // Enum 값 prjctPrgrssCode -> new ArrayList<>() // 빈 리스트 생성 )); //상위 프로젝트만 가져오기 List projects = projectRepository.findAllUpperProject(); // 상위 프로젝트들 dto에 담아서 변환 if(!projects.isEmpty()){ List loginDTOs = projects.stream() .map(project -> { LoginCanbanDTO lDto = new LoginCanbanDTO(); lDto.setPrjctNm(project.getPrjctNm()); lDto.setPrjctId(project.getPrjctId()); lDto.setPrjctCost(Integer.parseInt(project.getPrjctCost())); lDto.setPrjctEndDe(String.valueOf(project.getPrjctEndDe())); lDto.setPrjctBeginDe(String.valueOf(project.getPrjctBeginDe())); lDto.setPrjctPrgrssCode(project.getPrjctPrgrssCode()); lDto.setPrjctSttusCode(project.getPrjctSttusCode()); lDto.setUpperPrjctId(project.getUpperPrjctId()); return lDto; }).toList(); for (LoginCanbanDTO loginDTO : loginDTOs) { //하위 프로젝트 List undersProject = projectRepository.findUndersProject(loginDTO.getUpperPrjctId()); //상위 프로젝트 관련된 모든 하위 프로젝트 관련 참여자 목록 List chargers = new ArrayList<>(); chargers.addAll(chargerRepository.findCharger(loginDTO.getUpperPrjctId())); for (Project underProject : undersProject) { chargers.addAll(chargerRepository.findCharger(underProject.getPrjctId())); } loginDTO.setChargers(chargers); loginDTOresult.get(loginDTO.getPrjctPrgrssCode()).add(loginDTO); } } result.add(loginDTOresult); return result ; } public ArrayList findProject(Long upperPrjctId){ List projects = projectRepository.findUpperProject(upperPrjctId); ArrayList result = new ArrayList<>(); for (Project project : projects) { LoginCanbanDTO projectParam = new LoginCanbanDTO(); projectParam.setPrjctNm(project.getPrjctNm()); projectParam.setPrjctId(project.getPrjctId()); projectParam.setPrjctPrgrssCode(project.getPrjctPrgrssCode()); projectParam.setPrjctSttusCode(project.getPrjctSttusCode()); projectParam.setPrjctBeginDe(String.valueOf(project.getPrjctBeginDe())); projectParam.setPrjctEndDe(String.valueOf(project.getPrjctEndDe())); projectParam.setPrjctCost(Integer.parseInt(project.getPrjctCost())); projectParam.setUpperPrjctId(project.getUpperPrjctId()); projectParam.setChargers(chargerRepository.findCharger(project.getPrjctId())); result.add(projectParam); } log.info("setting project ========> {}",result ); return result; } @Transactional public void updateProgressCanban(String prjctPrgrssCode, Long upperPrjctId){ List projects = projectRepository.findUpperProject(upperPrjctId); Project project = projects.get(0); project.setPrjctPrgrssCode(PrjctPrgrssCode.valueOf(prjctPrgrssCode)); projectRepository.saveProjects(project); //Long changePrjctId = projectRepository.saveProjects(projects.get(0)); //return changePrjctId; } } package Ocean.Pms.repository; import Ocean.Pms.domain.Project; import Ocean.Pms.dto.LoginCanbanDTO; import jakarta.persistence.EntityManager; import lombok.RequiredArgsConstructor; import org.springframework.stereotype.Repository; import java.util.List; @Repository @RequiredArgsConstructor public class ProjectRepository { private final EntityManager em; public Long saveProjects(Project project){ em.persist(project); return project.getPrjctId(); } //전체 상위 프로젝트만 가져오기 public List findAllUpperProject(){ return em.createQuery("select p from Project p where p.prjctId = p.upperPrjctId",Project.class) .getResultList(); } public List findUndersProject(Long upperPrjctId){ return em.createQuery("select p from Project p where p.upperPrjctId = :upperPrjctId and p.prjctId != p.upperPrjctId",Project.class) .setParameter("upperPrjctId",upperPrjctId).getResultList(); } public List findUpperProject(Long upperPrjctId){ return em.createQuery("select p from Project p where p.upperPrjctId = :upperPrjctId",Project.class) .setParameter("upperPrjctId",upperPrjctId) .getResultList(); } public Project findProjectOne(Long prjctId) { return em.find(Project.class, prjctId); } }package Ocean.Pms.repository; import Ocean.Pms.domain.Charger; import jakarta.persistence.EntityManager; import lombok.RequiredArgsConstructor; import org.springframework.stereotype.Repository; import java.util.List; @Repository @RequiredArgsConstructor public class ChargerRepository { private final EntityManager em; public void saveCharger(Charger charger){ em.persist(charger); } public List findCharger(Long prjctId){ return em.createQuery("select c from Charger c where project.prjctId = :prjctId",Charger.class) .setParameter("prjctId",prjctId) .getResultList(); } public List findAllCharger(){ return em.createQuery("select c from Charger c",Charger.class).getResultList(); } }vo service repository 인데 제가 많이 부족하고 기본기가 부족하다는걸 알고있습니다.. 현재 강의도 듣는중이고 보완해 가려고 합니다.. 부디 한번만 도와주세요 선배님들

자바 jpa 같은 세션에 오브젝트가 있다는 오류 입니다...

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