[英]org.springframework.dao.InvalidDataAccessApiUsageException: Multiple representations of the same entity
歡迎！
我見過同樣的問題，但解決方案對我沒有幫助。
當我嘗試添加另一次看牙醫時會出現問題。 我添加了 hashCode 和 equals 方法，但沒有幫助。 從訪問中刪除級聯類型.MERGE 也沒有幫助。 我無法從牙醫中刪除級聯類型.MERGE，因為然后發生了另一個問題，在將其添加到牙醫之前必須存在該訪問。
堆棧跟蹤：
org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.springframework.dao.InvalidDataAccessApiUsageException: Multiple representations of the same entity [com.virtualdent.entity.Visit#1] are being merged. Detached: [Visit [id=1, day=asd, time=999]]; Detached: [Visit [id=1, day=Monday, time=12]]; nested exception is java.lang.IllegalStateException: Multiple representations of the same entity [com.virtualdent.entity.Visit#1] are being merged. Detached: [Visit [id=1, day=asd, time=999]]; Detached: [Visit [id=1, day=Monday, time=12]]
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1013)
org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:908)
javax.servlet.http.HttpServlet.service(HttpServlet.java:660)
org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:882)
javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
Root Cause
org.springframework.dao.InvalidDataAccessApiUsageException: Multiple representations of the same entity [com.virtualdent.entity.Visit#1] are being merged. Detached: [Visit [id=1, day=asd, time=999]]; Detached: [Visit [id=1, day=Monday, time=12]]; nested exception is java.lang.IllegalStateException: Multiple representations of the same entity [com.virtualdent.entity.Visit#1] are being merged. Detached: [Visit [id=1, day=asd, time=999]]; Detached: [Visit [id=1, day=Monday, time=12]]
org.springframework.orm.jpa.EntityManagerFactoryUtils.convertJpaAccessExceptionIfPossible(EntityManagerFactoryUtils.java:370)
org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.translateExceptionIfPossible(AbstractEntityManagerFactoryBean.java:528)
org.springframework.dao.support.ChainedPersistenceExceptionTranslator.translateExceptionIfPossible(ChainedPersistenceExceptionTranslator.java:61)
org.springframework.dao.support.DataAccessUtils.translateIfNecessary(DataAccessUtils.java:242)
org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:153)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
org.springframework.data.jpa.repository.support.CrudMethodMetadataPostProcessor$CrudMethodMetadataPopulatingMethodInterceptor.invoke(CrudMethodMetadataPostProcessor.java:135)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:93)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
org.springframework.data.repository.core.support.SurroundingTransactionDetectorMethodInterceptor.invoke(SurroundingTransactionDetectorMethodInterceptor.java:61)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:212)
com.sun.proxy.$Proxy46.save(Unknown Source)
com.virtualdent.service.DentistServiceImpl.saveDentist(DentistServiceImpl.java:32)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
java.lang.reflect.Method.invoke(Unknown Source)
org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:343)
org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:198)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:294)
org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:98)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:212)
com.sun.proxy.$Proxy55.saveDentist(Unknown Source)
com.virtualdent.controller.DentistController.saveVisit(DentistController.java:63)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
java.lang.reflect.Method.invoke(Unknown Source)
org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:189)
org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138)
org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:102)
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:895)
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:800)
org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1038)
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:942)
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1005)
org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:908)
javax.servlet.http.HttpServlet.service(HttpServlet.java:660)
org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:882)
javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
Root Cause
java.lang.IllegalStateException: Multiple representations of the same entity [com.virtualdent.entity.Visit#1] are being merged. Detached: [Visit [id=1, day=asd, time=999]]; Detached: [Visit [id=1, day=Monday, time=12]]
org.hibernate.event.internal.EntityCopyNotAllowedObserver.entityCopyDetected(EntityCopyNotAllowedObserver.java:45)
org.hibernate.event.internal.MergeContext.put(MergeContext.java:245)
org.hibernate.event.internal.DefaultMergeEventListener.entityIsDetached(DefaultMergeEventListener.java:285)
org.hibernate.event.internal.DefaultMergeEventListener.onMerge(DefaultMergeEventListener.java:151)
org.hibernate.internal.SessionImpl.fireMerge(SessionImpl.java:927)
org.hibernate.internal.SessionImpl.merge(SessionImpl.java:897)
org.hibernate.engine.spi.CascadingActions$6.cascade(CascadingActions.java:261)
org.hibernate.engine.internal.Cascade.cascadeToOne(Cascade.java:490)
org.hibernate.engine.internal.Cascade.cascadeAssociation(Cascade.java:415)
org.hibernate.engine.internal.Cascade.cascadeProperty(Cascade.java:216)
org.hibernate.engine.internal.Cascade.cascadeCollectionElements(Cascade.java:523)
org.hibernate.engine.internal.Cascade.cascadeCollection(Cascade.java:455)
org.hibernate.engine.internal.Cascade.cascadeAssociation(Cascade.java:418)
org.hibernate.engine.internal.Cascade.cascadeProperty(Cascade.java:216)
org.hibernate.engine.internal.Cascade.cascade(Cascade.java:149)
org.hibernate.event.internal.DefaultMergeEventListener.cascadeOnMerge(DefaultMergeEventListener.java:441)
org.hibernate.event.internal.DefaultMergeEventListener.entityIsDetached(DefaultMergeEventListener.java:307)
org.hibernate.event.internal.DefaultMergeEventListener.onMerge(DefaultMergeEventListener.java:151)
org.hibernate.event.internal.DefaultMergeEventListener.onMerge(DefaultMergeEventListener.java:65)
org.hibernate.internal.SessionImpl.fireMerge(SessionImpl.java:905)
org.hibernate.internal.SessionImpl.merge(SessionImpl.java:891)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
java.lang.reflect.Method.invoke(Unknown Source)
org.springframework.orm.jpa.SharedEntityManagerCreator$SharedEntityManagerInvocationHandler.invoke(SharedEntityManagerCreator.java:308)
com.sun.proxy.$Proxy43.merge(Unknown Source)
org.springframework.data.jpa.repository.support.SimpleJpaRepository.save(SimpleJpaRepository.java:492)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
java.lang.reflect.Method.invoke(Unknown Source)
org.springframework.data.repository.core.support.RepositoryComposition$RepositoryFragments.invoke(RepositoryComposition.java:359)
org.springframework.data.repository.core.support.RepositoryComposition.invoke(RepositoryComposition.java:200)
org.springframework.data.repository.core.support.RepositoryFactorySupport$ImplementationMethodExecutionInterceptor.invoke(RepositoryFactorySupport.java:644)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.doInvoke(RepositoryFactorySupport.java:608)
org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.lambda$invoke$3(RepositoryFactorySupport.java:595)
org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.invoke(RepositoryFactorySupport.java:595)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
org.springframework.data.projection.DefaultMethodInvokingMethodInterceptor.invoke(DefaultMethodInvokingMethodInterceptor.java:59)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:294)
org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:98)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:139)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
org.springframework.data.jpa.repository.support.CrudMethodMetadataPostProcessor$CrudMethodMetadataPopulatingMethodInterceptor.invoke(CrudMethodMetadataPostProcessor.java:135)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:93)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
org.springframework.data.repository.core.support.SurroundingTransactionDetectorMethodInterceptor.invoke(SurroundingTransactionDetectorMethodInterceptor.java:61)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:212)
com.sun.proxy.$Proxy46.save(Unknown Source)
com.virtualdent.service.DentistServiceImpl.saveDentist(DentistServiceImpl.java:32)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
java.lang.reflect.Method.invoke(Unknown Source)
org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:343)
org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:198)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:294)
org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:98)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:212)
com.sun.proxy.$Proxy55.saveDentist(Unknown Source)
com.virtualdent.controller.DentistController.saveVisit(DentistController.java:63)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
java.lang.reflect.Method.invoke(Unknown Source)
org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:189)
org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138)
org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:102)
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:895)
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:800)
org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1038)
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:942)
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1005)
org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:908)
javax.servlet.http.HttpServlet.service(HttpServlet.java:660)
org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:882)
javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
我的課：
@Entity
@Table(name="dentysta")
public class Dentist implements Serializable{
private static final long serialVersionUID = 3128830699411486597L;
@Id
@GeneratedValue
private int id;
@Column
private String firstName;
@Column
private String lastName;
@Column
private String specialization;
@Column
private int number;
@Column
private String address;
@OneToMany(mappedBy="dentist",cascade= {CascadeType.DETACH,CascadeType.MERGE,CascadeType.PERSIST,CascadeType.REFRESH},fetch=FetchType.EAGER)
private List<Patient>patients;
@ManyToMany(mappedBy="dentists", cascade=CascadeType.ALL)
@LazyCollection(LazyCollectionOption.FALSE)
private List<Visit>visits;
public Dentist() {
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public String getLastName() {
return lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
public String getSpecialization() {
return specialization;
}
public void setSpecialization(String specialization) {
this.specialization = specialization;
}
public int getNumber() {
return number;
}
public void setNumber(int number) {
this.number = number;
}
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
public List<Patient> getPatients() {
return patients;
}
public void setPatients(List<Patient> patients) {
this.patients = patients;
}
public List<Visit> getVisits() {
return visits;
}
public void setVisits(List<Visit> visits) {
this.visits = visits;
}
public void addPatient(Patient patient)
{
System.out.println("DENTIST=PATIENT+ADDER");
if(patients==null) {
patients=new ArrayList<>();
}
patient.setDentist(this);
patients.add(patient);
}
public void addVisit(Visit visit)
{
if(visits==null)
{
visits=new ArrayList<>();
}
visit.addDentist(this);
visits.add(visit);
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((address == null) ? 0 : address.hashCode());
result = prime * result + ((firstName == null) ? 0 : firstName.hashCode());
result = prime * result + id;
result = prime * result + ((lastName == null) ? 0 : lastName.hashCode());
result = prime * result + number;
result = prime * result + ((patients == null) ? 0 : patients.hashCode());
result = prime * result + ((specialization == null) ? 0 : specialization.hashCode());
result = prime * result + ((visits == null) ? 0 : visits.hashCode());
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
Dentist other = (Dentist) obj;
if (address == null) {
if (other.address != null)
return false;
} else if (!address.equals(other.address))
return false;
if (firstName == null) {
if (other.firstName != null)
return false;
} else if (!firstName.equals(other.firstName))
return false;
if (id != other.id)
return false;
if (lastName == null) {
if (other.lastName != null)
return false;
} else if (!lastName.equals(other.lastName))
return false;
if (number != other.number)
return false;
if (patients == null) {
if (other.patients != null)
return false;
} else if (!patients.equals(other.patients))
return false;
if (specialization == null) {
if (other.specialization != null)
return false;
} else if (!specialization.equals(other.specialization))
return false;
if (visits == null) {
if (other.visits != null)
return false;
} else if (!visits.equals(other.visits))
return false;
return true;
}
}
@Entity
@Table(name="wizyta")
public class Visit implements Serializable {
private static final long serialVersionUID = -135088128548004469L;
@Id
@GeneratedValue(strategy=GenerationType.IDENTITY)
private int id;
@Column
private String day;
@Column
private String time;
@ManyToMany(cascade={CascadeType.DETACH,CascadeType.PERSIST,CascadeType.REFRESH,CascadeType.MERGE}, fetch=FetchType.EAGER)
private List<Dentist>dentists;
public Visit() {}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getDay() {
return day;
}
public void setDay(String day) {
this.day = day;
}
public String getTime() {
return time;
}
public void setTime(String time) {
this.time = time;
}
public List<Dentist> getDentists() {
return dentists;
}
public void setDentists(List<Dentist> dentists) {
this.dentists = dentists;
}
@Override
public String toString() {
return "Visit [id=" + id + ", day=" + day + ", time=" + time +"]";
}
public void addDentist(Dentist dentist)
{
if(dentists==null)
{
dentists=new ArrayList<>();
}
dentists.add(dentist);
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((day == null) ? 0 : day.hashCode());
result = prime * result + ((dentists == null) ? 0 : dentists.hashCode());
result = prime * result + id;
result = prime * result + ((time == null) ? 0 : time.hashCode());
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
Visit other = (Visit) obj;
if (day == null) {
if (other.day != null)
return false;
} else if (!day.equals(other.day))
return false;
if (dentists == null) {
if (other.dentists != null)
return false;
} else if (!dentists.equals(other.dentists))
return false;
if (id != other.id)
return false;
if (time == null) {
if (other.time != null)
return false;
} else if (!time.equals(other.time))
return false;
return true;
}
}
感謝幫助！
您不能對標識符字段（int、long 等）使用原語。創建新實體的過程，例如，訪問：
創建新對象： Visit visit = new Visit() （原始int visit 的 id 字段填充為0 ）
如果id不為null ，MySQL 的策略 IDENTITY 將自動遞增id並且它將是1
填寫下一個字段
第二次訪問對象：
創建新對象...並且它的id字段再次為0
策略 IDENTITY 自動增加它，它會再次為1
等等。
如果設置了唯一標志，則在創建第二個對象時會出現異常。 使用 Long、Integer、String 或其他類型字段作為標識符（對於所有字段也最好使用非原始類型，因為實體總是使用無參數構造函數創建）。
運行 Spring 集成測試時出現“org.springframework.dao.InvalidDataAccessApiUsageException：相同的多個表示”
[英]"org.springframework.dao.InvalidDataAccessApiUsageException: Multiple representations of the same" when running Spring Integration Test
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[英]org.springframework.dao.InvalidDataAccessApiUsageException
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[英]org.springframework.dao.InvalidDataAccessApiUsageException while using findAll(Iterable<ID> ids) method
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[英]SimpleAsyncTaskExecutor : throws org.springframework.dao.InvalidDataAccessApiUsageException & javax.persistence.TransactionRequiredException
org.springframework.dao.InvalidDataAccessApiUsageException：未知名稱值 [-1] 用於 HIbernate 中的枚舉 class
[英]org.springframework.dao.InvalidDataAccessApiUsageException: Unknown name value [-1] for enum class in HIbernate
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