springboot dao层注解失败

待我称王封你为后i 2022-06-03 08:45 213阅读 0赞

# springboot dao层注解失败 #

springboot 项目编译报错  
报错信息如下

Field ulevelDao in demo.service.impl.UlevelServiceImpl required a bean of type demo.dao.UlevelDao' that could not be found.
    
    Consider defining a bean of type 'dao.UlevelDao' in your configuration.

找了很久，发现是缺少jar包引入……  
网上的一些解决方法：  
[http://blog.csdn.net/j754379117/article/details/71639043][http_blog.csdn.net_j754379117_article_details_71639043]

[https://stackoverflow.com/questions/24450161/no-qualifying-bean-of-type-com-sprhib-dao-userdao-found-for-dependency][https_stackoverflow.com_questions_24450161_no-qualifying-bean-of-type-com-sprhib-dao-userdao-found-for-dependency]

[https://stackoverflow.com/questions/44474367/field-in-com-xxx-required-a-bean-of-type-that-could-not-be-found][https_stackoverflow.com_questions_44474367_field-in-com-xxx-required-a-bean-of-type-that-could-not-be-found]

[https://stackoverflow.com/questions/21155010/spring-3-autowired-dao-fields-are-null-in-service-beans-with-transactional-a][https_stackoverflow.com_questions_21155010_spring-3-autowired-dao-fields-are-null-in-service-beans-with-transactional-a]

[http_blog.csdn.net_j754379117_article_details_71639043]: http://blog.csdn.net/j754379117/article/details/71639043
[https_stackoverflow.com_questions_24450161_no-qualifying-bean-of-type-com-sprhib-dao-userdao-found-for-dependency]: https://stackoverflow.com/questions/24450161/no-qualifying-bean-of-type-com-sprhib-dao-userdao-found-for-dependency
[https_stackoverflow.com_questions_44474367_field-in-com-xxx-required-a-bean-of-type-that-could-not-be-found]: https://stackoverflow.com/questions/44474367/field-in-com-xxx-required-a-bean-of-type-that-could-not-be-found
[https_stackoverflow.com_questions_21155010_spring-3-autowired-dao-fields-are-null-in-service-beans-with-transactional-a]: https://stackoverflow.com/questions/21155010/spring-3-autowired-dao-fields-are-null-in-service-beans-with-transactional-a