@Mapper和@MapperScan注解，xxx required a bean of type xxx that could not be found，

搭建springboot+mybatis+mysql+maven项目，从controller-service-dao，最后写mapper.xml，启动以后报错以下：java Field helloWorldDAO in com.example.demo.service.ServiceImpl.HelloWorldServiceImpl required a bean of type 'com.ex

>>阅读原文<<