Caused by: org.springframework.beans.factory.NoUniqueBeanDefinitionException: No qualifying bean of type 'com.bjpowernodeyushuxingPrimarySchool.School' available: expected single matching bean but fou

原因就是byType类型只能是is-a的关系
Caused by: org.springframework.beans.factory.NoUniqueBeanDefinitionException: No qualifying bean of type 'com.bjpowernodeyushuxingPrimarySchool.School' available: expected single matching bean but found 2: school,mySchool2