database - 如何避免 'Could not determine Hibernate dialect for database name [H2]!' ？

Question

我在运行 grails run-app 时遇到这个错误:

Error executing bootstraps: Error creating bean with name 'messageSource': Initialization of bean failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'transactionManager': Cannot resolve reference to bean 'sessionFactory' while setting bean property 'sessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory': Cannot resolve reference to bean 'hibernateProperties' while setting bean property 'hibernateProperties'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'hibernateProperties': Cannot resolve reference to bean 'dialectDetector' while setting bean property 'properties' with key [hibernate.dialect]; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dialectDetector': Invocation of init method failed; nested exception is org.codehaus.groovy.grails.orm.hibernate.exceptions.CouldNotDetermineHibernateDialectException: Could not determine Hibernate dialect for database name [H2]!

根据DataSource.groovy:

dataSource {
  pooled = true
  driverClassName = "org.h2.Driver"
  username = "sa"
  password = ""
  // Adding this causes a different error:
  // dialect = org.hibernate.dialect.H2Dialect
}

hibernate {
  cache.use_second_level_cache = true
  cache.use_query_cache = true
  cache.provider_class = 'net.sf.ehcache.hibernate.EhCacheProvider'
}

environments {
  development {
    dataSource {
      dbCreate = "create-drop" // one of 'create', 'create-drop','update'
      url = "jdbc:h2:mem:devDB"
    }
  }
  test { // test-related stuff }
  production { // prod-related stuff }
}

当我如上所述明确提供方言 (org.hibernate.dialect.H2Dialect) 时，会发生此错误:

执行 Bootstrap 时出错:创建名为“messageSource”的 bean 时出错:bean 初始化失败；嵌套异常是 org.springframework.beans.factory.BeanCreationException:创建名为“transactionManager”的 bean 时出错:在设置 bean 属性“sessionFactory”时无法解析对 bean“sessionFactory”的引用；嵌套异常是 org.springframework.beans.factory.BeanCreationException:创建名为“sessionFactory”的 bean 时出错:调用 init 方法失败；嵌套异常是 java.lang.IncompatibleClassChangeError: Found class org.hibernate.cfg.Mappings, but interface was expected

有人知道如何处理吗？

(错误报告以 http://jira.grails.org/browse/GRAILS-7994 形式存在)

Answer 1

这是 Joda Time 插件中的一个错误。参见提到的 JIRA issue了解详情。