报错如下：
2020-07-12 16:43:39.943 [main] DEBUG o.s.b.d.LoggingFailureAnalysisReporter - Application failed to start due to an exception
org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'com.test.course.dao.TestMapper' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
原因是
import org.apache.ibatis.annotations.Mapper;
@mapper包导错了