SpringBoot中Junit测试注入Bean失败的解决方法

报错内容：

org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'hellowood.TestFeedbackMapper': Unsatisfied dependency expressed through field 'feedbackDetailMapper'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'hellowood.lntu.oe.wmp.dao.FeedbackDetailMapper' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}

　　

在AppTest类中增加：

@RunWith(SpringRunner.class)
@SpringBootTest(classes = Application.class)
@WebAppConfiguration