Java 如何创建复合主键hibernate JPA？
我尝试使用HibernateJPA从2个外键创建表中的复合主键，但出现了错误。我在网上找到了一些，但什么也没有找到 表之间的关系如下所示：Java 如何创建复合主键hibernate JPA？,java,hibernate,hibernate-mapping,tapestry,composite-key,Java,Hibernate,Hibernate Mapping,Tapestry,Composite Key,我尝试使用HibernateJPA从2个外键创建表中的复合主键，但出现了错误。我在网上找到了一些，但什么也没有找到 表之间的关系如下所示： Table Client clientID(PK) FirstName LastName . Table CarService serviceID(PK) DescriptionOfFailure . . Table ServiceDepartment clientID(PK) serv
Table Client
clientID(PK)
FirstName
LastName
.
Table CarService
serviceID(PK)
DescriptionOfFailure
.
.
Table ServiceDepartment
clientID(PK)
serviceID(PK)
price
.
@Entity
public class ServiceDepartmentBean implements ServiceDepartmentI {
@EmbeddedId
private ServiceDepartmentPK serviceDepartmentPK = new ServiceDepartmentPK();
@Column(name="clientID", nullable=false, updatable=false, insertable=false)
private Long client;
@Column(name="serviceId", nullable=false, updatable=false, insertable=false)
private Long service;
@Column
private double price;
.
.
.
.
public void setClient(ClientI client){
serviceDepartmentPK.setClient(client);
}
public void setService(CarServiceI service){
serviceDepartmentPK.setService(service);
}
public ClientI getClient(){
return serviceDepartmentPK.getClient();
}
public CarServiceI getService(){
return serviceDepartmentPK.getService();
}
@Entity
public class CarServiceBean implements CarServiceI {
@Id
@GeneratedValue
private long serviceId;
@Column(nullable = false)
private String descriptionOfFailure;
@OneToMany(mappedBy="service")
private List<ServiceDepartmentI> servicesDepartments;
public List<ServiceDepartmentI> getServicesDepartments() {
return servicesDepartments;
}
.
.
//set i get method
@Entity
public class ClientBean implements ClientI {
@Id
@GeneratedValue
private long clientID;
@Column(nullable = false)
private String firstName;
@Column(nullable = false)
private String lastName;
@OneToMany(mappedBy = "client")
private List<ServiceDepartmentI> servicesDepartments;
public void setServicesDepartments(List<ServiceDepartmentI> servicesDepartments) {
this.servicesDepartments = servicesDepartments;
}
public List<ServiceDepartmentI> getServicesDepartments() {
return servicesDepartments;
}
}
public class ServiceDepartmentPK implements Serializable {
@ManyToOne
private ClientI client;
@ManyToOne
private CarServiceI service;
public void setClient(ClientI client) {
this.client = client;
}
public ClientI getClient() {
return client;
}
public void setService(CarServiceI service) {
this.service = service;
}
public CarServiceI getService() {
return service;
}
}
Table Client
clientID(PK)
FirstName
LastName
.
Table CarService
serviceID(PK)
DescriptionOfFailure
.
.
Table ServiceDepartment
clientID(PK)
serviceID(PK)
price
.
@Entity
public class ServiceDepartmentBean implements ServiceDepartmentI {
@EmbeddedId
private ServiceDepartmentPK serviceDepartmentPK = new ServiceDepartmentPK();
@Column(name="clientID", nullable=false, updatable=false, insertable=false)
private Long client;
@Column(name="serviceId", nullable=false, updatable=false, insertable=false)
private Long service;
@Column
private double price;
.
.
.
.
public void setClient(ClientI client){
serviceDepartmentPK.setClient(client);
}
public void setService(CarServiceI service){
serviceDepartmentPK.setService(service);
}
public ClientI getClient(){
return serviceDepartmentPK.getClient();
}
public CarServiceI getService(){
return serviceDepartmentPK.getService();
}
@Entity
public class CarServiceBean implements CarServiceI {
@Id
@GeneratedValue
private long serviceId;
@Column(nullable = false)
private String descriptionOfFailure;
@OneToMany(mappedBy="service")
private List<ServiceDepartmentI> servicesDepartments;
public List<ServiceDepartmentI> getServicesDepartments() {
return servicesDepartments;
}
.
.
//set i get method
@Entity
public class ClientBean implements ClientI {
@Id
@GeneratedValue
private long clientID;
@Column(nullable = false)
private String firstName;
@Column(nullable = false)
private String lastName;
@OneToMany(mappedBy = "client")
private List<ServiceDepartmentI> servicesDepartments;
public void setServicesDepartments(List<ServiceDepartmentI> servicesDepartments) {
this.servicesDepartments = servicesDepartments;
}
public List<ServiceDepartmentI> getServicesDepartments() {
return servicesDepartments;
}
}
public class ServiceDepartmentPK implements Serializable {
@ManyToOne
private ClientI client;
@ManyToOne
private CarServiceI service;
public void setClient(ClientI client) {
this.client = client;
}
public ClientI getClient() {
return client;
}
public void setService(CarServiceI service) {
this.service = service;
}
public CarServiceI getService() {
return service;
}
}
[INFO] annotations.EntityBinder Bind entity com.fit.beans.ServiceDepartmentBean on table ServiceDepartmentBean
[ERROR] ioc.Registry Error invoking constructor public org.apache.tapestry5.internal.hibernate.HibernateSessionSourceImpl(org.slf4j.Logger,java.util.List): java.lang.NullPointerException
[ERROR] ioc.Registry Operations trace:
[ERROR] ioc.Registry [ 1] Realizing service HibernateSessionSource
[ERROR] ioc.Registry [ 2] Instantiating service HibernateSessionSource implementation via org.apache.tapestry5.internal.hibernate.HibernateSessionSourceImpl(Logger, List) (at HibernateSessionSourceImpl.java:36) via org.apache.tapestry5.hibernate.HibernateCoreModule.bind(ServiceBinder) (at HibernateCoreModule.java:45)
[ERROR] ioc.Registry [ 3] Invoking constructor org.apache.tapestry5.internal.hibernate.HibernateSessionSourceImpl(Logger, List) (at HibernateSessionSourceImpl.java:36) via org.apache.tapestry5.hibernate.HibernateCoreModule.bind(ServiceBinder) (at HibernateCoreModule.java:45) (for service 'HibernateSessionSource')
[ERROR] HibernateCoreModule.HibernateSessionSource Construction of service HibernateSessionSource failed: Error invoking constructor public org.apache.tapestry5.internal.hibernate.HibernateSessionSourceImpl(org.slf4j.Logger,java.util.List): java.lang.NullPointerException
org.apache.tapestry5.ioc.internal.OperationException: Error invoking constructor public org.apache.tapestry5.internal.hibernate.HibernateSessionSourceImpl(org.slf4j.Logger,java.util.List): java.lang.NullPointerException
at org.apache.tapestry5.ioc.internal.OperationTrackerImpl.logAndRethrow(OperationTrackerImpl.java:121)
at org.apache.tapestry5.ioc.internal.OperationTrackerImpl.invoke(OperationTrackerImpl.java:88)
at org.apache.tapestry5.ioc.internal.PerThreadOperationTracker.invoke(PerThreadOperationTracker.java:87)
at org.apache.tapestry5.ioc.internal.RegistryImpl.invoke(RegistryImpl.java:1121)
at org.apache.tapestry5.ioc.internal.util.ConstructionPlan.createObject(ConstructionPlan.java:60)
at org.apache.tapestry5.ioc.internal.ConstructorServiceCreator.createObject(ConstructorServiceCreator.java:61)
at org.apache.tapestry5.ioc.internal.OperationTrackingObjectCreator$1.invoke(OperationTrackingObjectCreator.java:45)
at org.apache.tapestry5.ioc.internal.OperationTrackerImpl.invoke(OperationTrackerImpl.java:74)
at org.apache.tapestry5.ioc.internal.PerThreadOperationTracker.invoke(PerThreadOperationTracker.java:87)
at org.apache.tapestry5.ioc.internal.RegistryImpl.invoke(RegistryImpl.java:1121)
[INFO] cfg.AnnotationBinder Binding entity from annotated class: com.fit.beans.CarServiceBean
[INFO] annotations.EntityBinder Bind entity com.fit.beans.CarServiceBean on table CarServiceBean
[INFO] cfg.AnnotationBinder Binding entity from annotated class: com.fit.beans.ServiceDepartmentBean
[INFO] annotations.EntityBinder Bind entity com.fit.beans.ServiceDepartmentBean on table ServiceDepartmentBean
[ERROR] ioc.Registry Error invoking constructor public org.apache.tapestry5.internal.hibernate.HibernateSessionSourceImpl(org.slf4j.Logger,java.util.List): No identifier specified for entity: com.fit.beans.ServiceDepartmentBean
[ERROR] ioc.Registry Operations trace:
[ERROR] ioc.Registry [ 1] Realizing service HibernateSessionSource
[ERROR] ioc.Registry [ 2] Instantiating service HibernateSessionSource implementation via org.apache.tapestry5.internal.hibernate.HibernateSessionSourceImpl(Logger, List) (at HibernateSessionSourceImpl.java:36) via org.apache.tapestry5.hibernate.HibernateCoreModule.bind(ServiceBinder) (at HibernateCoreModule.java:45)
[ERROR] ioc.Registry [ 3] Invoking constructor org.apache.tapestry5.internal.hibernate.HibernateSessionSourceImpl(Logger, List) (at HibernateSessionSourceImpl.java:36) via org.apache.tapestry5.hibernate.HibernateCoreModule.bind(ServiceBinder) (at HibernateCoreModule.java:45) (for service 'HibernateSessionSource')
[ERROR] HibernateCoreModule.HibernateSessionSource Construction of service HibernateSessionSource failed: Error invoking constructor public org.apache.tapestry5.internal.hibernate.HibernateSessionSourceImpl(org.slf4j.Logger,java.util.List): No identifier specified for entity: com.fit.beans.ServiceDepartmentBean
org.apache.tapestry5.ioc.internal.OperationException: Error invoking constructor public org.apache.tapestry5.internal.hibernate.HibernateSessionSourceImpl(org.slf4j.Logger,java.util.List): No identifier specified for entity: com.fit.beans.ServiceDepartmentBean
at org.apache.tapestry5.ioc.internal.OperationTrackerImpl.logAndRethrow(OperationTrackerImpl.java:121)
at org.apache.tapestry5.ioc.internal.OperationTrackerImpl.invoke(OperationTrackerImpl.java:88)
at org.apache.tapestry5.ioc.internal.PerThreadOperationTracker.invoke(PerThreadOperationTracker.java:87)
at org.apache.tapestry5.ioc.internal.RegistryImpl.invoke(RegistryImpl.java:1121)
at org.apache.tapestry5.ioc.internal.util.ConstructionPlan.createObject(ConstructionPlan.java:60)
at org.apache.tapestry5.ioc.internal.ConstructorServiceCreator.createObject(ConstructorServiceCreator.java:61)
at org.apache.tapestry5.ioc.internal.OperationTrackingObjectCreator$1.invoke(OperationTrackingObjectCreator.java:45)
at org.apache.tapestry5.ioc.internal.OperationTrackerImpl.invoke(OperationTrackerImpl.java:74)
at org.apache.tapestry5.ioc.internal.PerThreadOperationTracker.invoke(PerThreadOperationTracker.java:87)
at org.apache.tapestry5.ioc.internal.RegistryImpl.invoke(RegistryImpl.java:1121)
at org.apache.tapestry5.ioc.internal.OperationTrackingObjectCreator.createObject(OperationTrackingObjectCreator.java:49)
at org.apache.tapestry5.ioc.internal.SingletonServiceLifecycle.createService(SingletonServiceLifecycle.java:29)
at org.apache.tapestry5.ioc.internal.LifecycleWrappedServiceCreator.createObject(LifecycleWrappedServiceCreator.java:46)
at org.apache.tapestry5.ioc.internal.AdvisorStackBuilder.createObject(AdvisorStackBuilder.java:63)
at org.apache.tapestry5.ioc.internal.InterceptorStackBuilder.createObject(InterceptorStackBuilder.java:54)
at org.apache.tapestry5.ioc.internal.RecursiveServiceCreationCheckWrapper.createObject(RecursiveServiceCreationCheckWrapper.java:60)
at org.apache.tapestry5.ioc.internal.OperationTrackingObjectCreator$1.invoke(OperationTrackingObjectCreator.java:45)
at org.apache.tapestry5.ioc.internal.OperationTrackerImpl.invoke(OperationTrackerImpl.java:74)
at org.apache.tapestry5.ioc.internal.PerThreadOperationTracker.invoke(PerThreadOperationTracker.java:87)
.
.
.
.
.
Caused by: java.lang.RuntimeException: Error invoking constructor public org.apache.tapestry5.internal.hibernate.HibernateSessionSourceImpl(org.slf4j.Logger,java.util.List): No identifier specified for entity: com.fit.beans.ServiceDepartmentBean
at org.apache.tapestry5.ioc.internal.util.ConstructorInvoker.invoke(ConstructorInvoker.java:57)
at org.apache.tapestry5.ioc.internal.util.LoggingInvokableWrapper.invoke(LoggingInvokableWrapper.java:42)
at org.apache.tapestry5.ioc.internal.OperationTrackerImpl.invoke(OperationTrackerImpl.java:74)
... 72 more
Caused by: org.hibernate.AnnotationException: No identifier specified for entity: com.fit.beans.ServiceDepartmentBean
at org.hibernate.cfg.AnnotationBinder.bindClass(AnnotationBinder.java:672)
at org.hibernate.cfg.AnnotationConfiguration.processArtifactsOfType(AnnotationConfiguration.java:546)
at org.hibernate.cfg.AnnotationConfiguration.secondPassCompile(AnnotationConfiguration.java:291)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1333)
at org.hibernate.cfg.AnnotationConfiguration.buildSessionFactory(AnnotationConfiguration.java:867)
at org.apache.tapestry5.internal.hibernate.HibernateSessionSourceImpl.<init>(HibernateSessionSourceImpl.java:46)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at org.apache.tapestry5.ioc.internal.util.ConstructorInvoker.invoke(ConstructorInvoker.java:48)
... 74 more
[INFO]cfg.AnnotationBinder绑定实体来自注释类：com.fit.beans.CarServiceBean
[信息]annotations.EntityBinder绑定表CarServiceBean上的实体com.fit.beans.CarServiceBean
[INFO]cfg.AnnotationBinder绑定实体来自注释类：com.fit.beans.ServiceDepartmentBean
[INFO]表ServiceDepartmentBean上的annotations.EntityBinder绑定实体com.fit.beans.ServiceDepartmentBean
[ERROR]ioc.Registry调用构造函数public org.apache.tapestry5.internal.hibernate.HibernateSessionSourceImpl时出错（org.slf4j.Logger，java.util.List）：未为实体com.fit.beans.ServiceDepartmentBean指定标识符
[错误]ioc。注册表操作跟踪：
[错误]ioc.Registry[1]正在实现服务HibernateSessionSource
[错误]ioc.Registry[2]通过org.apache.tapestry5.internal.hibernate.HibernateSessionSourceImpl（记录器，列表）（位于HibernateSessionSourceImpl.java:36）通过org.apache.tapestry5.hibernate.HibernateCoreModule.bind（ServiceBinder）（位于HibernateCoreModule.java:45）实例化服务HibernateSessionSourceImpl实现
[错误]ioc.Registry[3]调用构造函数org.apache.tapestry5.internal.hibernate.HibernateSessionSourceImpl（记录器，列表）（位于HibernateSessionSourceImpl.java:36）通过org.apache.tapestry5.hibernate.HibernateCoreModule.bind（ServiceBinder）（位于HibernateCoreModule.java:45）（用于服务“HibernateSessionSource”）
[错误]HibernateCremodule.HibernateSessionSource服务的构造HibernateSessionSource失败：调用构造函数public org.apache.tapestry5.internal.hibernate.HibernateSessionSourceImpl（org.slf4j.Logger，java.util.List）时出错：未为实体com.fit.beans.ServiceDepartmentBean指定标识符
org.apache.tapestry5.ioc.internal.OperationException:调用构造函数public org.apache.tapestry5.internal.hibernate.HibernateSessionSourceImpl（org.slf4j.Logger，java.util.List）时出错：未为实体com.fit.beans.ServiceDepartmentBean指定标识符
位于org.apache.tapestry5.ioc.internal.OperationTrackerImpl.logandertrow（OperationTrackerImpl.java:121）
位于org.apache.tapestry5.ioc.internal.OperationTrackerImpl.invoke（OperationTrackerImpl.java:88）
位于org.apache.tapestry5.ioc.internal.PerThreadOperationTracker.invoke（PerThreadOperationTracker.java:87）
位于org.apache.tapestry5.ioc.internal.RegistryImpl.invoke（RegistryImpl.java:1121）
位于org.apache.tapestry5.ioc.internal.util.ConstructionPlan.createObject（ConstructionPlan.java:60）
位于org.apache.tapestry5.ioc.internal.ConstructorServiceCreator.createObject（ConstructorServiceCreator.java:61）
位于org.apache.tapestry5.ioc.internal.OperationTrackingObjectCreator$1.invoke（OperationTrackingObjectCreator.java:45）
位于org.apache.tapestry5.ioc.internal.OperationTrackerImpl.invoke（OperationTrackerImpl.java:74）
位于org.apache.tapestry5.ioc.internal.PerThreadOperationTracker.invoke（PerThreadOperationTracker.java:87）
位于org.apache.tapestry5.ioc.internal.RegistryImpl.invoke（RegistryImpl.java:1121）
位于org.apache.tapestry5.ioc.internal.OperationTrackingObjectCreator.createObject（OperationTrackingObjectCreator.java:49）
位于org.apache.tapestry5.ioc.internal.SingletonServiceLifecycle.createService（SingletonServiceLifecycle.java:29）
位于org.apache.tapestry5.ioc.internal.LifecycleWrappedServiceCreator.createObject（LifecycleWrappedServiceCreator.java:46）
位于org.apache.tapestry5.ioc.internal.AdvisorStackBuilder.createObject（AdvisorStackBuilder.java:63）
位于org.apache.tapestry5.ioc.internal.InterceptorStackBuilder.createObject（InterceptorStackBuilder.java:54）
位于org.apache.tapestry5.ioc.internal.RecursiveServiceCreationCheckRapper.createObject（RecursiveServiceCreationCheckRapper.java:60）
位于org.apache.tapestry5.ioc.internal.OperationTrackingObjectCreator$1.invoke（OperationTrackingObjectCreator.java:45）
位于org.apache.tapestry5.ioc.internal.OperationTrackerImpl.invoke（OperationTrackerImpl.java:74）
位于org.apache.tapestry5.ioc.internal.PerThreadOperationTracker.invoke（PerThreadOperationTracker.java:87）
.
.
.
.
.
原因：java.lang.RuntimeException:调用构造函数public org.apache.tapestry5.internal.hibernate.HibernateSessionSourceImpl（org.slf4j.Logger，java.util.List）时出错：未为实体指定标识符：com.fit.beans.ServiceDepartmentBean
位于org.apache.tapestry5.ioc.internal.util.ConstructorInvoker.invoke（ConstructorInvoker.java:57）
位于org.apache.tapestry5.ioc.internal.util.LoggingInvokableWrapper.invoke（LoggingInvokableWrapper.java:42）
位于org.apache.tapestry5.ioc.internal.OperationTrackerImpl.invoke（OperationTrackerImpl.java:74）
... 72多
原因：org.hibernate.AnnotationException:未为实体com.fit.beans.ServiceDepartmentBean指定标识符
位于org.hibernate.cfg.AnnotationBinder.bindClass（AnnotationBinder.java:672）
位于org.hibernate.cfg.AnnotationConfiguration.processArtifactsOfType（AnnotationConfiguration.java:546）
位于org.hibernate.cfg.AnnotationConfiguration.secondPassCompile（AnnotationConfiguration.java:291）
位于org.hibernate.cfg.Configuration.buildSessionFactory（Configuration.java:1333）
位于org.hibernate.cfg.AnnotationConfiguration.buildSessionFactory（AnnotationConfiguration.java:867）
位于org.apache.tapestry5.internal.hibernate.HibernateSessionSourceImpl.（HibernateSessionSourceImpl.java:46）
位于sun.reflect.NativeConstructorAccessorImpl.newInstance0（本机方法）
位于sun.reflect.NativeConstructorAccessorImpl.newInstance（NativeConstructorAccessorImpl.java:39）
在sun.reflect.DelegatingConstructorAccessorImpl.newInstance（DelegatingConstructorAccessorImpl.java:2