Java 使用接口和长
我试图实现一个通用的粗糙存储库，但spring boot在我参数化CrudeRepository的接口（IStorable）上给出了一个“非托管类型”异常。如果这里有人能帮我，我将不胜感激。谢谢大家! 我有我的回购协议：Java 使用接口和长,java,spring-boot,jpa,spring-data,Java,Spring Boot,Jpa,Spring Data,我试图实现一个通用的粗糙存储库，但spring boot在我参数化CrudeRepository的接口（IStorable）上给出了一个“非托管类型”异常。如果这里有人能帮我，我将不胜感激。谢谢大家! 我有我的回购协议： package com.project.biddingSoft.dao; public interface IRepo extends CrudRepository<IStorable, Long> { } 之后，我有我的实体类： pack
package com.project.biddingSoft.dao;
public interface IRepo extends CrudRepository<IStorable, Long> {
}
package com.project.biddingSoft.model;
@Entity
public class Lot implements IStorable {
@Override
public Long getId() {
return id;
}
@Id
@GeneratedValue(strategy=GenerationType.AUTO)
private Long id;
setters, getters and attributes as usual..
}
@Entity
@Component
public class Lot implements IStorable {
public Lot() {
}
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
private Long id;
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
setters, getters etc.
@Transient
@Autowired
private static ILotRepo iLotRepo;
@Autowired
public void setILotRepo(ILotRepo ilotrepo) {
iLotRepo = ilotrepo;
}
@Override
public Optional<? extends IStorable> findById(Long id) throws IllegalArgumentException {
Optional<Lot> lot = null;
try {
lot = iLotRepo.findById(id);
} catch (IllegalArgumentException e) {
throw e;
}
return lot;
}
other CRUD operators' implementations...
}
package com.project.biddingSoft;
@SpringBootApplication(exclude = {SecurityAutoConfiguration.class })
public class BiddingSoftwareApplication implements CommandLineRunner {
public static void main(String[] args) {
SpringApplication.run(BiddingSoftwareApplication.class, args);
}
Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
12:04:51.237 [restartedMain] ERROR o.s.boot.SpringApplication - Application run failed
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'servletInitializer': Unsatisfied dependency expressed through field 'daoServiceImpl'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'daoServiceImpl': Unsatisfied dependency expressed through field 'iRepo'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'IRepo' defined in com.project.biddingSoft.dao.IRepo defined in @EnableJpaRepositories declared on BiddingSoftwareApplication: Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: Not a managed type: interface com.project.biddingSoft.model.IStorable
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:660)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:640)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:119)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:399)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1413)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:601)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:524)
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:944)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:917)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:582)
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:144)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:767)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:759)
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:426)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:326)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1311)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1300)
at com.project.biddingSoft.BiddingSoftwareApplication.main(BiddingSoftwareApplication.java:29)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:564)
at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49)
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'daoServiceImpl': Unsatisfied dependency expressed through field 'iRepo'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'IRepo' defined in com.project.biddingSoft.dao.IRepo defined in @EnableJpaRepositories declared on BiddingSoftwareApplication: Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: Not a managed type: interface com.project.biddingSoft.model.IStorable
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:660)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:640)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:119)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:399)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1413)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:601)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:524)
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208)
at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1380)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1300)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:657)
... 26 common frames omitted
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'IRepo' defined in com.project.biddingSoft.dao.IRepo defined in @EnableJpaRepositories declared on BiddingSoftwareApplication: Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: Not a managed type: interface com.project.biddingSoft.model.IStorable
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1786)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:602)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:524)
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208)
at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1380)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1300)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:657)
... 40 common frames omitted
Caused by: java.lang.IllegalArgumentException: Not a managed type: interface com.project.biddingSoft.model.IStorable
at org.hibernate.metamodel.internal.MetamodelImpl.managedType(MetamodelImpl.java:582)
at org.hibernate.metamodel.internal.MetamodelImpl.managedType(MetamodelImpl.java:85)
at org.springframework.data.jpa.repository.support.JpaMetamodelEntityInformation.<init>(JpaMetamodelEntityInformation.java:75)
at org.springframework.data.jpa.repository.support.JpaEntityInformationSupport.getEntityInformation(JpaEntityInformationSupport.java:66)
at org.springframework.data.jpa.repository.support.JpaRepositoryFactory.getEntityInformation(JpaRepositoryFactory.java:229)
at org.springframework.data.jpa.repository.support.JpaRepositoryFactory.getTargetRepository(JpaRepositoryFactory.java:179)
at org.springframework.data.jpa.repository.support.JpaRepositoryFactory.getTargetRepository(JpaRepositoryFactory.java:162)
at org.springframework.data.jpa.repository.support.JpaRepositoryFactory.getTargetRepository(JpaRepositoryFactory.java:72)
at org.springframework.data.repository.core.support.RepositoryFactorySupport.getRepository(RepositoryFactorySupport.java:281)
at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.lambda$afterPropertiesSet$5(RepositoryFactoryBeanSupport.java:323)
at org.springframework.data.util.Lazy.getNullable(Lazy.java:230)
at org.springframework.data.util.Lazy.get(Lazy.java:114)
at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.afterPropertiesSet(RepositoryFactoryBeanSupport.java:329)
at org.springframework.data.jpa.repository.support.JpaRepositoryFactoryBean.afterPropertiesSet(JpaRepositoryFactoryBean.java:144)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1845)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1782)
... 50 common frames omitted
"status": 500,
"error": "Internal Server Error",
"trace": "org.springframework.dao.InvalidDataAccessApiUsageException: Unknown entity: com.project.biddingSoft.domain.Storable; nested exception is java.lang.IllegalArgumentException: Unknown entity: com.project.biddingSoft.domain.Storable\r\n\tat org.springframework.orm.jpa.EntityManagerFactoryUtils.convertJpaAccessExceptionIfPossible(EntityManagerFactoryUtils.java:374)\r\n\tat org.springframework.orm.jpa.vendor.HibernateJpaDialect.translateExceptionIfPossible(HibernateJpaDialect.java:235)\r\n\tat org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.translateExceptionIfPossible(AbstractEntityManagerFactoryBean.java:551)\r\n\tat org.springframework.dao.support.ChainedPersistenceExceptionTranslator.translateExceptionIfPossible(ChainedPersistenceExceptionTranslator.java:61)\r\n\tat org.springframework.dao.support.DataAccessUtils.translateIfNecessary(DataAccessUtils.java:242)\r\n\tat org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:152)\r\n\tat org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)\r\n\tat org.springframework.data.jpa.repository.support.CrudMethodMetadataPostProcessor$CrudMethodMetadataPopulatingMethodInterceptor.invoke(CrudMethodMetadataPostProcessor.java:174)\r\n\tat org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)\r\n\tat org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:97)\r\n\tat org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)\r\n\tat org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:215)\r\n\tat com.sun.proxy.$Proxy94.save(Unknown Source)\r\n\tat com.project.biddingSoft.service.DaoServiceImpl.persistEntity(DaoServiceImpl.java:36)\r\n\tat com.project.biddingSoft.controller.ServletInitializer.addNewEntity(ServletInitializer.java:77)\r\n\tat java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)\r\n\tat java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64)\r\n\tat java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)\r\n\tat java.base/java.lang.reflect.Method.invoke(Method.java:564)\r\n\tat org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:197)\r\n\tat org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:141)\r\n\tat org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:106)\r\n\tat org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:894)\r\n\tat org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:808)\r\n\tat org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)\r\n\tat org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1060)\r\n\tat org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:962)\r\n\tat org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006)\r\n\tat org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:909)\r\n\tat javax.servlet.http.HttpServlet.service(HttpServlet.java:652)\r\n\tat org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883)\r\n\tat javax.servlet.http.HttpServlet.service(HttpServlet.java:733)\r\n\tat org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:227)\r\n\tat org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)\r\n\tat org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)\r\n\tat org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)\r\n\tat org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)\r\n\tat org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100)\r\n\tat org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)\r\n\tat org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)\r\n\tat org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)\r\n\tat org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93)\r\n\tat org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)\r\n\tat org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)\r\n\tat org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)\r\n\tat org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201)\r\n\tat org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)\r\n\tat org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)\r\n\tat org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)\r\n\tat org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202)\r\n\tat org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97)\r\n\tat org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:542)\r\n\tat org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:143)\r\n\tat org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)\r\n\tat org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78)\r\n\tat org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:346)\r\n\tat org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:374)\r\n\tat org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)\r\n\tat org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:887)\r\n\tat org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1684)\r\n\tat org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)\r\n\tat java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130)\r\n\tat java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:630)\r\n\tat org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)\r\n\tat java.base/java.lang.Thread.run(Thread.java:832)\r\nCaused by: java.lang.IllegalArgumentException: Unknown entity: com.project.biddingSoft.domain.Storable\r\n\tat org.hibernate.internal.SessionImpl.firePersist(SessionImpl.java:723)\r\n\tat org.hibernate.internal.SessionImpl.persist(SessionImpl.java:706)\r\n\tat java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)\r\n\tat java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64)\r\n\tat java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)\r\n\tat java.base/java.lang.reflect.Method.invoke(Method.java:564)\r\n\tat org.springframework.orm.jpa.ExtendedEntityManagerCreator$ExtendedEntityManagerInvocationHandler.invoke(ExtendedEntityManagerCreator.java:362)\r\n\tat com.sun.proxy.$Proxy91.persist(Unknown Source)\r\n\tat java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)\r\n\tat java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64)\r\n\tat java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)\r\n\tat java.base/java.lang.reflect.Method.invoke(Method.java:564)\r\n\tat org.springframework.orm.jpa.SharedEntityManagerCreator$SharedEntityManagerInvocationHandler.invoke(SharedEntityManagerCreator.java:311)\r\n\tat com.sun.proxy.$Proxy91.persist(Unknown Source)\r\n\tat org.springframework.data.jpa.repository.support.SimpleJpaRepository.save(SimpleJpaRepository.java:557)\r\n\tat java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)\r\n\tat java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64)\r\n\tat java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)\r\n\tat java.base/java.lang.reflect.Method.invoke(Method.java:564)\r\n\tat org.springframework.data.repository.core.support.RepositoryMethodInvoker$RepositoryFragmentMethodInvoker.lambda$new$0(RepositoryMethodInvoker.java:289)\r\n\tat org.springframework.data.repository.core.support.RepositoryMethodInvoker.doInvoke(RepositoryMethodInvoker.java:137)\r\n\tat org.springframework.data.repository.core.support.RepositoryMethodInvoker.invoke(RepositoryMethodInvoker.java:121)\r\n\tat org.springframework.data.repository.core.support.RepositoryComposition$RepositoryFragments.invoke(RepositoryComposition.java:524)\r\n\tat org.springframework.data.repository.core.support.RepositoryComposition.invoke(RepositoryComposition.java:285)\r\n\tat org.springframework.data.repository.core.support.RepositoryFactorySupport$ImplementationMethodExecutionInterceptor.invoke(RepositoryFactorySupport.java:531)\r\n\tat org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)\r\n\tat org.springframework.data.repository.core.support.QueryExecutorMethodInterceptor.doInvoke(QueryExecutorMethodInterceptor.java:156)\r\n\tat org.springframework.data.repository.core.support.QueryExecutorMethodInterceptor.invoke(QueryExecutorMethodInterceptor.java:131)\r\n\tat org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)\r\n\tat org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:123)\r\n\tat org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:388)\r\n\tat org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:119)\r\n\tat org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)\r\n\tat org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:137)\r\n\t... 59 more\r\n",
"message": "Unknown entity: com.project.biddingSoft.domain.Storable; nested exception is java.lang.IllegalArgumentException: Unknown entity: com.project.biddingSoft.domain.Storable",
"path": "/addent"
Crudepository您不能使用带有
Crudepository@实体（托管类型）。您必须使用@实体
的特定实现，而不是-CRUDepository
我通过将CRUD操作委托给实体对象本身解决了我的问题：
我有我的LotRepo：
@Repository
public interface ILotRepo extends CrudRepository<Lot, Long> {
}
@存储库
公共接口ILotRepo扩展了CRUDEPository{
}
然后我有了我的IStorable接口：
package com.project.biddingSoft.model;
public interface IStorable {
public Long getId() ;
}
@JsonTypeInfo(use = JsonTypeInfo.Id.NAME, include = JsonTypeInfo.As.PROPERTY, property = "type", defaultImpl = Lot.class)
@JsonSubTypes({ @JsonSubTypes.Type(value = User.class, name = "user"),
@JsonSubTypes.Type(value = Bid.class, name = "bid") })
public interface IStorable {
public Long getId();
public void setId(Long id);
public boolean saveToRepo();
public Iterable<? extends IStorable> findAll();
public Optional<? extends IStorable> findById(Long id);
public void deleteById(Long id);
}
@JsonTypeInfo（use=JsonTypeInfo.Id.NAME，include=JsonTypeInfo.As.PROPERTY，PROPERTY=“type”，defaultImpl=Lot.class）
@JsonSubTypes（{@JsonSubTypes.Type（value=User.class，name=“User”），
@JsonSubTypes.Type（value=Bid.class，name=“Bid”）}
公共接口可存储{
公共长getId（）；
公共无效设置id（长id）；
公共布尔值saveToRepo（）；
public IterableIt最初是这样的，但这就是我更改的全部要点。我可能有另一个实体类也实现了IStorable。我不想在我的DaoServiceImpl类中为每个实体对象（通过http请求）分别实现方法就典型的、基本的CRUD操作而言，我也不希望每个实体对象都有一个单独的repo。但是，我如何让我的ServletInitializer和DaoServiceImpl只需要担心一种类型的对象通过http/ResponseEntity传递和返回，而不是不同实体的负载，每个实体都有自己的ta数据库中的ble？这最好由所有实体扩展的超类来完成，还是甚至可以使用抽象类来完成？我查看了数据rest。我可以看到它如何节省大量的锅炉板代码，但我不知道它如何解决这个特殊问题？
@Repository
public interface ILotRepo extends CrudRepository<Lot, Long> {
}
@JsonTypeInfo(use = JsonTypeInfo.Id.NAME, include = JsonTypeInfo.As.PROPERTY, property = "type", defaultImpl = Lot.class)
@JsonSubTypes({ @JsonSubTypes.Type(value = User.class, name = "user"),
@JsonSubTypes.Type(value = Bid.class, name = "bid") })
public interface IStorable {
public Long getId();
public void setId(Long id);
public boolean saveToRepo();
public Iterable<? extends IStorable> findAll();
public Optional<? extends IStorable> findById(Long id);
public void deleteById(Long id);
}
@Entity
@Component
public class Lot implements IStorable {
public Lot() {
}
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
private Long id;
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
setters, getters etc.
@Transient
@Autowired
private static ILotRepo iLotRepo;
@Autowired
public void setILotRepo(ILotRepo ilotrepo) {
iLotRepo = ilotrepo;
}
@Override
public Optional<? extends IStorable> findById(Long id) throws IllegalArgumentException {
Optional<Lot> lot = null;
try {
lot = iLotRepo.findById(id);
} catch (IllegalArgumentException e) {
throw e;
}
return lot;
}
other CRUD operators' implementations...
}
@RestController
public class ServletInitializer extends SpringBootServletInitializer {
@Autowired
private DaoServiceImpl daoServiceImpl;
@GetMapping(path = "/getent/{id}")
public ResponseEntity<? extends IStorable> getEntity(@PathVariable Long id, @RequestBody IStorable entity) {
Optional<? extends IStorable> results = daoServiceImpl.getEntityById(id, entity);
if (results.isPresent())
return ResponseEntity.ok(results.get());
else
return new ResponseEntity<>(HttpStatus.NOT_FOUND);
}
@PostMapping(path = "/addent")
ResponseEntity<Object> addNewEntity(@RequestBody IStorable entity) {
try {
daoServiceImpl.persistEntity(entity);
} catch (IllegalArgumentException e) {
throw new ResponseStatusException(HttpStatus.UNAUTHORIZED, e.getMessage());
}
return new ResponseEntity("Object updated successfully", HttpStatus.CREATED);
}
Mappings for other CRUD requests
}
@Service
@Component
public class DaoServiceImpl {
public Optional<? extends IStorable> getEntityById(Long id, IStorable entity) {
return entity.findById(id);
}
public boolean persistEntity(IStorable entity) throws IllegalArgumentException {
try {
entity.saveToRepo();
} catch (IllegalArgumentException e) {
logger.info("Error is ", e);
throw e;
}
return true;
}
Services for the other CRUD requests...
}
@Repository
public interface IUserRepo extends CrudRepository<User, Long> {
}