Spring Boot应用启动失败：移除@JdbcTypeCode后仍无法确定UE实体的推荐JdbcType

我最近在开发一个基于Spring Boot + JPA + Hibernate的应用，之前误把@JdbcTypeCode注解放在了Maquette的关联上，移除这个注解之后，启动应用还是遇到了报错——核心问题是Hibernate无法确定sn.uasz.demoJPA.entities.UE这个实体对应的推荐JDBC类型，导致entityManagerFactory Bean创建失败。

初始错误摘要 #

Error starting ApplicationContext. To display the condition evaluation report, re-run your application with 'debug' enabled.
2025-02-18T12:09:49.522Z ERROR 21964 --- [demoJPA] [restartedMain] o.s.boot.SpringApplication : Application run failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaConfiguration.class]: Could not determine recommended JdbcType for Java type 'sn.uasz.demoJPA.entities.UE'

完整错误堆栈 #

2025-02-18T18:26:52.406Z  WARN 23596 --- [demoJPA] [  restartedMain] org.hibernate.orm.deprecation            : HHH90000025: MySQL8Dialect does not need to be specified explicitly using 'hibernate.dialect' (remove the property setting and it will be selected by default)
2025-02-18T18:26:52.408Z  WARN 23596 --- [demoJPA] [  restartedMain] org.hibernate.orm.deprecation            : HHH90000026: MySQL8Dialect has been deprecated; use org.hibernate.dialect.MySQLDialect instead
2025-02-18T18:26:52.654Z ERROR 23596 --- [demoJPA] [  restartedMain] j.LocalContainerEntityManagerFactoryBean : Failed to initialize JPA EntityManagerFactory: Could not determine recommended JdbcType for Java type 'sn.uasz.demoJPA.entities.UE'
2025-02-18T18:26:52.655Z  WARN 23596 --- [demoJPA] [  restartedMain] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaConfiguration.class]: Could not determine recommended JdbcType for Java type 'sn.uasz.demoJPA.entities.UE'
2025-02-18T18:26:52.657Z  INFO 23596 --- [demoJPA] [  restartedMain] com.zaxxer.hikari.HikariDataSource       : HikariPool-1 - Shutdown initiated...
2025-02-18T18:26:52.678Z  INFO 23596 --- [demoJPA] [  restartedMain] com.zaxxer.hikari.HikariDataSource       : HikariPool-1 - Shutdown completed.
2025-02-18T18:26:52.679Z  INFO 23596 --- [demoJPA] [  restartedMain] o.apache.catalina.core.StandardService   : Stopping service [Tomcat]
2025-02-18T18:26:52.690Z  INFO 23596 --- [demoJPA] [  restartedMain] .s.b.a.l.ConditionEvaluationReportLogger : 

Error starting ApplicationContext. To display the condition evaluation report re-run your application with 'debug' enabled.
2025-02-18T18:26:52.711Z ERROR 23596 --- [demoJPA] [  restartedMain] o.s.boot.SpringApplication               : Application run failed

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaConfiguration.class]: Could not determine recommended JdbcType for Java type 'sn.uasz.demoJPA.entities.UE'
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1786) ~[spring-beans-6.1.4.jar:6.1.4]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:600) ~[spring-beans-6.1.4.jar:6.1.4]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:522) ~[spring-beans-6.1.4.jar:6.1.4]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:325) ~[spring-beans-6.1.4.jar:6.1.4]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-6.1.4.jar:6.1.4]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:323) ~[spring-beans-6.1.4.jar:6.1.4]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) ~[spring-beans-6.1.4.jar:6.1.4]
at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1231) ~[spring-context-6.1.4.jar:6.1.4]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:949) ~[spring-context-6.1.4.jar:6.1.4]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:624) ~[spring-context-6.1.4.jar:6.1.4]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:146) ~[spring-boot-3.2.3.jar:3.2.3]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:754) ~[spring-boot-3.2.3.jar:3.2.3]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:456) ~[spring-boot-3.2.3.jar:3.2.3]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:334) ~[spring-boot-3.2.3.jar:3.2.3]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1354) ~[spring-boot-3.2.3.jar:3.2.3]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1343) ~[spring-boot-3.2.3.jar:3.2.3]
at sn.uasz.demoJPA.DemoJpaApplication.main(DemoJpaApplication.java:32) ~[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.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:50) ~[spring-boot-devtools-3.2.3.jar:3.2.3]
Caused by: org.hibernate.type.descriptor.java.spi.JdbcTypeRecommendationException: Could not determine recommended JdbcType for Java type 'sn.uasz.demoJPA.entities.UE'
at org.hibernate.type.descriptor.java.spi.UnknownBasicJavaType.getRecommendedJdbcType(UnknownBasicJavaType.java:37) ~[hibernate-core-6.4.4.Final.jar:6.4.4.Final]
at org.hibernate.boot.model.process.internal.InferredBasicValueResolver.from(InferredBasicValueResolver.java:195) ~[hibernate-core-6.4.4.Final.jar:6.4.4.Final]
at org.hibernate.mapping.BasicValue.resolution(BasicValue.java:642) ~[hibernate-core-6.4.4.Final.jar:6.4.4.Final]
at org.hibernate.mapping.BasicValue.buildResolution(BasicValue.java:493) ~[hibernate-core-6.4.4.Final.jar:6.4.4.Final]
at org.hibernate.mapping.BasicValue.resolve(BasicValue.java:345) ~[hibernate-core-6.4.4.Final.jar:6.4.4.Final]
at org.hibernate.mapping.BasicValue.resolve(BasicValue.java:335) ~[hibernate-core-6.4.4.Final.jar:6.4.4.Final]
at org.hibernate.boot.internal.InFlightMetadataCollectorImpl.lambda$processValueResolvers$4(InFlightMetadataCollectorImpl.java:1800) ~[hibernate-core-6.4.4.Final.jar:6.4.4.Final]
at java.base/java.util.ArrayList.removeIf(ArrayList.java:1682) ~[na:na]
at java.base/java.util.ArrayList.removeIf(ArrayList.java:1660) ~[na:na]
at org.hibernate.boot.internal.InFlightMetadataCollectorImpl.processValueResolvers(InFlightMetadataCollectorImpl.java:1799) ~[hibernate-core-6.4.4.Final.jar:6.4.4.Final]
at org.hibernate.boot.internal.InFlightMetadataCollectorImpl.processSecondPasses(InFlightMetadataCollectorImpl.java:1785) ~[hibernate-core-6.4.4.Final.jar:6.4.4.Final]
at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete(MetadataBuildingProcess.java:332) ~[hibernate-core-6.4.4.Final.jar:6.4.4.Final]
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.metadata(EntityManagerFactoryBuilderImpl.java:1432) ~[hibernate-core-6.4.4.Final.jar:6.4.4.Final]
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:1503) ~[hibernate-core-6.4.4.Final.jar:6.4.4.Final]
at org.springframework.orm.jpa.vendor.SpringHibernateJpaPersistenceProvider.createContainerEntityManagerFactory(SpringHibernateJpaPersistenceProvider.java:75) ~[spring-orm-6.1.4.jar:6.1.4]
at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:388) ~[spring-orm-6.1.4.jar:6.1.4]
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.buildNativeEntityManagerFactory(AbstractEntityManagerFactoryBean.java:409) ~[spring-orm-6.1.4.jar:6.1.4]
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:396) ~[spring-orm-6.1.4.jar:6.1.4]
at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.afterPropertiesSet(LocalContainerEntityManagerFactoryBean.java:364) ~[spring-orm-6.1.4.jar:6.1.4]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1833) ~[spring-beans-6.1.4.jar:6.1.4]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1782) ~[spring-beans-6.1.4.jar:6.1.4]
... 21 common frames omitted

上下文说明 #

我开发的是Spring Boot + JPA + Hibernate应用，错误出现在应用尝试创建entityManagerFactory Bean的时候。虽然已经移除了之前错误放置在Maquette关联上的@JdbcTypeCode注解，但Hibernate还是无法确定UE实体对应的正确JDBC类型。

UE实体类代码 #

package sn.uasz.demoJPA.entities;
import jakarta.persistence.*;
import jakarta.validation.constraints.NotEmpty;
import jakarta.validation.constraints.NotNull;

备注：内容来源于stack exchange，提问作者Taphsir Abdoulaye Ciss