Hibernate 5.0.11 - 多次注册 AttributeConverter 类 [英] Hibernate 5.0.11 - AttributeConverter class registered multiple times
问题描述
我将 Spring Boot 升级到 1.4.2 并将 Hibernate 升级到 5.0.11.Final 并开始看到此错误.不知道为什么 HibernateJpaAutoConfiguration 多次注册客户转换器，即使它只声明一次.
I upgraded Spring Boot to 1.4.2 and Hibernate to 5.0.11.Final and started seeing this error. Not sure why HibernateJpaAutoConfiguration is registering the customer converter multiple times even though it is declared only once.
当我尝试运行到 bootRun 时抛出以下异常.
Following exception is being thrown when I try to run to bootRun.
任何帮助都会非常可观.
Any help would be really appreciable.
[32m2016-11-22 12:25:26.469 -- INFO -- o.a.c.c.StandardService [main] -- Stopping service Tomcat
[[32m2016-11-22 12:25:26.485 -- INFO -- utoConfigurationReportLoggingInitializer [main] --
Error starting ApplicationContext. To display the auto-configuration report re-run your application with 'debug' enabled.
[[1;31m2016-11-22 12:25:26.489 -- ERROR -- o.s.b.SpringApplication [main] -- Application startup failed
[org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaAutoConfiguration.class]: Invocation of init method failed; nested exception is org.hibernate.AssertionFailure: AttributeConverter class [class com.testOrg.converter.InvertedBooleanTFConverter] registered multiple times
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1583) ~[spring-beans-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:553) ~[spring-beans-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482) ~[spring-beans-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) ~[spring-beans-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) ~[spring-beans-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) ~[spring-beans-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) ~[spring-beans-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1081) ~[spring-context-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:856) ~[spring-context-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:542) ~[spring-context-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122) ~[spring-boot-1.4.2.RELEASE.jar:1.4.2.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:761) [spring-boot-1.4.2.RELEASE.jar:1.4.2.RELEASE]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:371) [spring-boot-1.4.2.RELEASE.jar:1.4.2.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) [spring-boot-1.4.2.RELEASE.jar:1.4.2.RELEASE]
at com.testOrg.Application.main(Application.java:17) [main/:?]
Caused by: org.hibernate.AssertionFailure: AttributeConverter class [class com.testOrg.location.uk.service.converter.InvertedBooleanTFConverter] registered multiple times
at org.hibernate.boot.internal.InFlightMetadataCollectorImpl.addAttributeConverter(InFlightMetadataCollectorImpl.java:353) ~[hibernate-core-5.0.11.Final.jar:5.0.11.Final]
at org.hibernate.boot.internal.InFlightMetadataCollectorImpl.addAttributeConverter(InFlightMetadataCollectorImpl.java:386) ~[hibernate-core-5.0.11.Final.jar:5.0.11.Final]
at org.hibernate.boot.model.source.internal.annotations.AnnotationMetadataSourceProcessorImpl$AttributeConverterManager.addAttributeConverter(AnnotationMetadataSourceProcessorImpl.java:321) ~[hibernate-core-5.0.11.Final.jar:5.0.11.Final]
at org.hibernate.boot.model.source.internal.annotations.AnnotationMetadataSourceProcessorImpl.categorizeAnnotatedClass(AnnotationMetadataSourceProcessorImpl.java:117) ~[hibernate-core-5.0.11.Final.jar:5.0.11.Final]
at org.hibernate.boot.model.source.internal.annotations.AnnotationMetadataSourceProcessorImpl.<init>(AnnotationMetadataSourceProcessorImpl.java:104) ~[hibernate-core-5.0.11.Final.jar:5.0.11.Final]
at org.hibernate.boot.model.process.spi.MetadataBuildingProcess$1.<init>(MetadataBuildingProcess.java:147) ~[hibernate-core-5.0.11.Final.jar:5.0.11.Final]
at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete(MetadataBuildingProcess.java:141) ~[hibernate-core-5.0.11.Final.jar:5.0.11.Final]
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.metadata(EntityManagerFactoryBuilderImpl.java:847) ~[hibernate-entitymanager-5.0.11.Final.jar:5.0.11.Final]
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:874) ~[hibernate-entitymanager-5.0.11.Final.jar:5.0.11.Final]
at org.springframework.orm.jpa.vendor.SpringHibernateJpaPersistenceProvider.createContainerEntityManagerFactory(SpringHibernateJpaPersistenceProvider.java:60) ~[spring-orm-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:353) ~[spring-orm-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.buildNativeEntityManagerFactory(AbstractEntityManagerFactoryBean.java:373) ~[spring-orm-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:362) ~[spring-orm-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1642) ~[spring-beans-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1579) ~[spring-beans-4.3.4.RELEASE.jar:4.3.4.RELEASE]
... 14 more
Disconnected from the target VM, address: '127.0.0.1:54978', transport: 'socket'
:web:bootRun FAILED
推荐答案
不知何故，JPA 的 @EnableAutoconfiguration 传递了两条路径进行扫描，因为数据库配置位于子文件夹中，这很有意义.
Somehow the @EnableAutoconfiguration of JPA were passing two paths to get scanned, because the database configuration was in sub folder which makes sense.
com.testOrg
com.testOrg.configuration
org.springframework.orm.jpa.persistenceunit.DefaultPersistenceUnitManager 第 520 行正在根据找到的扫描配置路径的数量多次添加转换器，我认为对于其他类，我们没有检查重复性，但对于转换器，我们确实检查了它是否被多次注册而不是抛出异常.com.testOrg.configuration.MetadataBuilderImpl.java 第 907 行
org.springframework.orm.jpa.persistenceunit.DefaultPersistenceUnitManager on line 520 is adding converters multiple times based on the number of scanned configuration paths found,
I think for other classes we do not have check for duplicacy but for Converters we do have check if it gets registered multiple times than throw Exception see. com.testOrg.configuration.MetadataBuilderImpl.java line 907
为了解决这个问题，我将我的 DatabaseConfiguration 类从 "com.testOrg.configuration" 文件夹移到 main 中，因此只有一个类要注册.
To solve this, I moved my DatabaseConfiguration class out of "com.testOrg.configuration" folder to main and hence only one class to register.
我希望这可能对某人有所帮助.
I hope this might be helpful for someone.
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