自定义spring数据JPA构造函数异常

时间:2017-01-01 05:26:59

标签: java spring spring-data spring-data-jpa

我是初学数据的新手,我正在尝试自定义它。这是我到目前为止所尝试的: 我的基础存储库接口

public interface IBaseRepository<T extends BaseEntity<PK>, PK extends Serializable> extends JpaRepository<T, PK> {
}

它的实施

public class BaseRepository<T extends BaseEntity<PK>, PK extends Serializable> extends SimpleJpaRepository<T, PK>
  implements IBaseRepository<T, PK> {

public BaseRepository(Class<T> domainClass, EntityManager em) {
  super(domainClass, em);
}
}

现在我希望为用户提供独立的存储库类

public interface IUserRepository extends IBaseRepository<User, Long> {

}

@Repository
public class UserRepository extends BaseRepository<User, Long> implements IUserRepository {

  UserRepository(Class<User> domainClass, EntityManager em) {
  super(domainClass, em);
  }

}

但我得到了这个例外:

***************************
APPLICATION FAILED TO START
***************************

Description:

Parameter 0 of constructor in com.bia2hd.dao.impl.UserRepository required a bean of type 'java.lang.Class' that could not be found.


Action:

Consider defining a bean of type 'java.lang.Class' in your configuration.

1 个答案:

答案 0 :(得分:-1)

不完全确定这是帮助人们解决问题的答案,只是在每项服务中添加了以下方法:

@Bean
@Override
public Class<User> getDomain() {
  return User.class;
}