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我正在使用java-play-spring模板（可在此獲取：https://github.com/jamesward/play-java-spring#master），目前我正試圖從默認的hibernate db驅動程序切換到mysql。當'hibernate.dialect'未設置時，DialectResolutionInfo不能爲null - PlayFramework
我添加一個條目，以build.sbt：
"mysql" % "mysql-connector-java" % "5.1.12"
然後我打開application.conf和
db.default.driver=org.h2.Driver
db.default.url="jdbc:h2:mem:test;DB_CLOSE_DELAY=-1"
改爲：
db.default.driver=com.mysql.jdbc.Driver
db.default.url="jdbc:mysql://localhost:3306/mydatabase"
重新部署我的應用程序後，我收到一個錯誤：
Factory method [public javax.persistence.EntityManagerFactory configs.DataConfig.entityManagerFactory()] threw exception; nested exception is
org.hibernate.HibernateException: Access to DialectResolutionInfo cannot be null when 'hibernate.dialect' not set
我沒有改變基本配置任何東西，所以它仍然是這樣的：
@Configuration
@EnableTransactionManagement
public class DataConfig {
@Bean
public EntityManagerFactory entityManagerFactory() {
HibernateJpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
vendorAdapter.setShowSql(true);
vendorAdapter.setGenerateDdl(true);
LocalContainerEntityManagerFactoryBean entityManagerFactory = new LocalContainerEntityManagerFactoryBean();
entityManagerFactory.setPackagesToScan("models");
entityManagerFactory.setJpaVendorAdapter(vendorAdapter);
entityManagerFactory.setDataSource(dataSource());
entityManagerFactory.setJpaPropertyMap(new HashMap<String, String>(){{
put("hibernate.hbm2ddl.auto", "create-drop");
}});
entityManagerFactory.afterPropertiesSet();
return entityManagerFactory.getObject();
}
@Bean
public PlatformTransactionManager transactionManager() {
JpaTransactionManager transactionManager = new JpaTransactionManager(entityManagerFactory());
return transactionManager;
}
@Bean
public DataSource dataSource() {
final DriverManagerDataSource dataSource = new DriverManagerDataSource();
dataSource.setDriverClassName(Play.application().configuration().getString("db.default.driver"));
dataSource.setUrl(Play.application().configuration().getString("db.default.url"));
return dataSource;
}
}
有誰知道這可能是此錯誤的原因？下面完整的錯誤堆棧：
play.api.UnexpectedException: Unexpected exception[BeanCreationException: Error creating bean with name 'application': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private services.BarService controllers.Application.barService; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'barServiceImpl': Injection of persistence dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class configs.DataConfig: Instantiation of bean failed; nested exception is org.springframework.beans.factory.BeanDefinitionStoreException: Factory method [public javax.persistence.EntityManagerFactory configs.DataConfig.entityManagerFactory()] threw exception; nested exception is org.hibernate.HibernateException: Access to DialectResolutionInfo cannot be null when 'hibernate.dialect' not set]
at play.core.ReloadableApplication$$anonfun$get$1$$anonfun$apply$1$$anonfun$1.apply(ApplicationProvider.scala:166) ~[play_2.10-2.3.7.jar:2.3.7]
at play.core.ReloadableApplication$$anonfun$get$1$$anonfun$apply$1$$anonfun$1.apply(ApplicationProvider.scala:130) ~[play_2.10-2.3.7.jar:2.3.7]
at scala.Option.map(Option.scala:145) ~[scala-library.jar:na]
at play.core.ReloadableApplication$$anonfun$get$1$$anonfun$apply$1.apply(ApplicationProvider.scala:130) ~[play_2.10-2.3.7.jar:2.3.7]
at play.core.ReloadableApplication$$anonfun$get$1$$anonfun$apply$1.apply(ApplicationProvider.scala:128) ~[play_2.10-2.3.7.jar:2.3.7]
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'application': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private services.BarService controllers.Application.barService; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'barServiceImpl': Injection of persistence dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class configs.DataConfig: Instantiation of bean failed; nested exception is org.springframework.beans.factory.BeanDefinitionStoreException: Factory method [public javax.persistence.EntityManagerFactory configs.DataConfig.entityManagerFactory()] threw exception; nested exception is org.hibernate.HibernateException: Access to DialectResolutionInfo cannot be null when 'hibernate.dialect' not set
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:334) ~[spring-beans-4.1.1.RELEASE.jar:4.1.1.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1204) ~[spring-beans-4.1.1.RELEASE.jar:4.1.1.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:538) ~[spring-beans-4.1.1.RELEASE.jar:4.1.1.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476) ~[spring-beans-4.1.1.RELEASE.jar:4.1.1.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:302) ~[spring-beans-4.1.1.RELEASE.jar:4.1.1.RELEASE]
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private services.BarService controllers.Application.barService; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'barServiceImpl': Injection of persistence dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class configs.DataConfig: Instantiation of bean failed; nested exception is org.springframework.beans.factory.BeanDefinitionStoreException: Factory method [public javax.persistence.EntityManagerFactory configs.DataConfig.entityManagerFactory()] threw exception; nested exception is org.hibernate.HibernateException: Access to DialectResolutionInfo cannot be null when 'hibernate.dialect' not set
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:555) ~[spring-beans-4.1.1.RELEASE.jar:4.1.1.RELEASE]
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87) ~[spring-beans-4.1.1.RELEASE.jar:4.1.1.RELEASE]
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:331) ~[spring-beans-4.1.1.RELEASE.jar:4.1.1.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1204) ~[spring-beans-4.1.1.RELEASE.jar:4.1.1.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:538) ~[spring-beans-4.1.1.RELEASE.jar:4.1.1.RELEASE]
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'barServiceImpl': Injection of persistence dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class configs.DataConfig: Instantiation of bean failed; nested exception is org.springframework.beans.factory.BeanDefinitionStoreException: Factory method [public javax.persistence.EntityManagerFactory configs.DataConfig.entityManagerFactory()] threw exception; nested exception is org.hibernate.HibernateException: Access to DialectResolutionInfo cannot be null when 'hibernate.dialect' not set
at org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor.postProcessPropertyValues(PersistenceAnnotationBeanPostProcessor.java:356) ~[spring-orm-4.1.1.RELEASE.jar:4.1.1.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1204) ~[spring-beans-4.1.1.RELEASE.jar:4.1.1.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:538) ~[spring-beans-4.1.1.RELEASE.jar:4.1.1.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476) ~[spring-beans-4.1.1.RELEASE.jar:4.1.1.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:302) ~[spring-beans-4.1.1.RELEASE.jar:4.1.1.RELEASE]
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class configs.DataConfig: Instantiation of bean failed; nested exception is org.springframework.beans.factory.BeanDefinitionStoreException: Factory method [public javax.persistence.EntityManagerFactory configs.DataConfig.entityManagerFactory()] threw exception; nested exception is org.hibernate.HibernateException: Access to DialectResolutionInfo cannot be null when 'hibernate.dialect' not set
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:601) ~[spring-beans-4.1.1.RELEASE.jar:4.1.1.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1113) ~[spring-beans-4.1.1.RELEASE.jar:4.1.1.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1008) ~[spring-beans-4.1.1.RELEASE.jar:4.1.1.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:505) ~[spring-beans-4.1.1.RELEASE.jar:4.1.1.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476) ~[spring-beans-4.1.1.RELEASE.jar:4.1.1.RELEASE]
Caused by: org.springframework.beans.factory.BeanDefinitionStoreException: Factory method [public javax.persistence.EntityManagerFactory configs.DataConfig.entityManagerFactory()] threw exception; nested exception is org.hibernate.HibernateException: Access to DialectResolutionInfo cannot be null when 'hibernate.dialect' not set
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:188) ~[spring-beans-4.1.1.RELEASE.jar:4.1.1.RELEASE]
at org.springframework.beans.factory.support.ConstructorResolver$3.run(ConstructorResolver.java:584) ~[spring-beans-4.1.1.RELEASE.jar:4.1.1.RELEASE]
at java.security.AccessController.doPrivileged(Native Method) ~[na:1.8.0_31]
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:581) ~[spring-beans-4.1.1.RELEASE.jar:4.1.1.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1113) ~[spring-beans-4.1.1.RELEASE.jar:4.1.1.RELEASE]
Caused by: org.hibernate.HibernateException: Access to DialectResolutionInfo cannot be null when 'hibernate.dialect' not set
at org.hibernate.engine.jdbc.dialect.internal.DialectFactoryImpl.determineDialect(DialectFactoryImpl.java:104) ~[hibernate-core-4.3.6.Final.jar:4.3.6.Final]
at org.hibernate.engine.jdbc.dialect.internal.DialectFactoryImpl.buildDialect(DialectFactoryImpl.java:71) ~[hibernate-core-4.3.6.Final.jar:4.3.6.Final]
at org.hibernate.engine.jdbc.internal.JdbcServicesImpl.configure(JdbcServicesImpl.java:205) ~[hibernate-core-4.3.6.Final.jar:4.3.6.Final]
at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.configureService(StandardServiceRegistryImpl.java:111) ~[hibernate-core-4.3.6.Final.jar:4.3.6.Final]
at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:234) ~[hibernate-core-4.3.6.Final.jar:4.3.6.Final]