報錯：org.hibernate.boot.registry.classloading.spi.ClassLoadingException: Unable to load class [xxx]
阿新 • • 發佈：2018-12-11
org.hibernate.boot.registry.classloading.spi.ClassLoadingException: Unable to load class [MultiTenantConnectionProviderImpl] at org.hibernate.boot.registry.classloading.internal.ClassLoaderServiceImpl.classForName(ClassLoaderServiceImpl.java:348) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final] at org.hibernate.engine.jdbc.connections.internal.MultiTenantConnectionProviderInitiator.initiateService(MultiTenantConnectionProviderInitiator.java:74) [hibernate-core-5.2.17.Final.jar:5.2.17.Final] at org.hibernate.engine.jdbc.connections.internal.MultiTenantConnectionProviderInitiator.initiateService(MultiTenantConnectionProviderInitiator.java:28) [hibernate-core-5.2.17.Final.jar:5.2.17.Final] at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.initiateService(StandardServiceRegistryImpl.java:88) [hibernate-core-5.2.17.Final.jar:5.2.17.Final] at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:259) [hibernate-core-5.2.17.Final.jar:5.2.17.Final] at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:233) [hibernate-core-5.2.17.Final.jar:5.2.17.Final] at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:210) [hibernate-core-5.2.17.Final.jar:5.2.17.Final] at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.buildJdbcConnectionAccess(JdbcEnvironmentInitiator.java:149) [hibernate-core-5.2.17.Final.jar:5.2.17.Final] at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:66) [hibernate-core-5.2.17.Final.jar:5.2.17.Final] at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:35) [hibernate-core-5.2.17.Final.jar:5.2.17.Final] at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.initiateService(StandardServiceRegistryImpl.java:88) [hibernate-core-5.2.17.Final.jar:5.2.17.Final] at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:259) [hibernate-core-5.2.17.Final.jar:5.2.17.Final] at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:233) [hibernate-core-5.2.17.Final.jar:5.2.17.Final] at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:210) [hibernate-core-5.2.17.Final.jar:5.2.17.Final] at org.hibernate.engine.jdbc.internal.JdbcServicesImpl.configure(JdbcServicesImpl.java:51) [hibernate-core-5.2.17.Final.jar:5.2.17.Final] at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.configureService(StandardServiceRegistryImpl.java:94) [hibernate-core-5.2.17.Final.jar:5.2.17.Final] at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:242) [hibernate-core-5.2.17.Final.jar:5.2.17.Final] at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:210) [hibernate-core-5.2.17.Final.jar:5.2.17.Final] at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.handleTypes(MetadataBuildingProcess.java:352) [hibernate-core-5.2.17.Final.jar:5.2.17.Final] at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete(MetadataBuildingProcess.java:111) [hibernate-core-5.2.17.Final.jar:5.2.17.Final] at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.metadata(EntityManagerFactoryBuilderImpl.java:861) [hibernate-core-5.2.17.Final.jar:5.2.17.Final] at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:888) [hibernate-core-5.2.17.Final.jar:5.2.17.Final] at org.springframework.orm.jpa.vendor.SpringHibernateJpaPersistenceProvider.createContainerEntityManagerFactory(SpringHibernateJpaPersistenceProvider.java:57) [spring-orm-5.0.9.RELEASE.jar:5.0.9.RELEASE] at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:365) [spring-orm-5.0.9.RELEASE.jar:5.0.9.RELEASE] at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.buildNativeEntityManagerFactory(AbstractEntityManagerFactoryBean.java:390) [spring-orm-5.0.9.RELEASE.jar:5.0.9.RELEASE] at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:377) [spring-orm-5.0.9.RELEASE.jar:5.0.9.RELEASE] at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.afterPropertiesSet(LocalContainerEntityManagerFactoryBean.java:341) [spring-orm-5.0.9.RELEASE.jar:5.0.9.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1758) [spring-beans-5.0.9.RELEASE.jar:5.0.9.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1695) [spring-beans-5.0.9.RELEASE.jar:5.0.9.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:573) [spring-beans-5.0.9.RELEASE.jar:5.0.9.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:495) [spring-beans-5.0.9.RELEASE.jar:5.0.9.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317) [spring-beans-5.0.9.RELEASE.jar:5.0.9.RELEASE] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.0.9.RELEASE.jar:5.0.9.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315) [spring-beans-5.0.9.RELEASE.jar:5.0.9.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) [spring-beans-5.0.9.RELEASE.jar:5.0.9.RELEASE] at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1089) ~[spring-context-5.0.9.RELEASE.jar:5.0.9.RELEASE] at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:859) ~[spring-context-5.0.9.RELEASE.jar:5.0.9.RELEASE] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:550) ~[spring-context-5.0.9.RELEASE.jar:5.0.9.RELEASE] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:140) ~[spring-boot-2.0.5.RELEASE.jar:2.0.5.RELEASE] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:780) ~[spring-boot-2.0.5.RELEASE.jar:2.0.5.RELEASE] at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:412) ~[spring-boot-2.0.5.RELEASE.jar:2.0.5.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:333) ~[spring-boot-2.0.5.RELEASE.jar:2.0.5.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1277) ~[spring-boot-2.0.5.RELEASE.jar:2.0.5.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1265) ~[spring-boot-2.0.5.RELEASE.jar:2.0.5.RELEASE] at com.mission.missiongroupcontrolservice.MissionGroupControlServiceApplication.main(MissionGroupControlServiceApplication.java:22) ~[classes/:na] Caused by: java.lang.ClassNotFoundException: Could not load requested class : MultiTenantConnectionProviderImpl at org.hibernate.boot.registry.classloading.internal.ClassLoaderServiceImpl$AggregatedClassLoader.findClass(ClassLoaderServiceImpl.java:336) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final] at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[na:1.8.0_181] at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[na:1.8.0_181] at java.lang.Class.forName0(Native Method) ~[na:1.8.0_181] at java.lang.Class.forName(Class.java:348) ~[na:1.8.0_181] at org.hibernate.boot.registry.classloading.internal.ClassLoaderServiceImpl.classForName(ClassLoaderServiceImpl.java:345) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final] ... 44 common frames omitted
原因：因為我配置檔案只寫了類名，但是啟動的時候沒有載入到。
properties:
hibernate:
multiTenancy: SCHEMA
tenant_identifier_resolver: MultiTenantIdentifierResolver
multi_tenant_connection_provider: MultiTenantConnectionProviderImpl解決：加上完整路徑名就可以了。
properties: hibernate: multiTenancy: SCHEMA tenant_identifier_resolver: com.mission.missiongroupcontrolservice.multidb.MultiTenantIdentifierResolver multi_tenant_connection_provider: com.mission.missiongroupcontrolservice.multidb.MultiTenantConnectionProviderImpl