spring boot,No qualifying bean of type found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency - spring-boot

Question

#Controller
#EnableAutoConfiguration
public class ControllerShowInfo
{
#RequestMapping("/")
public String rawPage()
{
return "rawPage";
}
#Autowired
stockreviewsRepositoryDao repository;
#RequestMapping("/getBaseInfo")
#ResponseBody
public JSONArray getReviewsInfo()
{
JSONArray jsonArray = new JSONArray();
for (stockreviewsBean reviewBean : repository.findAll())
{
jsonArray.put(reviewBean);
System.out.println(reviewBean.getTitle());
}
return jsonArray;
}
public static void main(String[] args) throws Exception
{
SpringApplication.run(ControllerShowInfo.class, args);
}
}
this is controller layer.
public interface stockreviewsRepositoryDao extends CrudRepository<stockreviewsBean,String>
{
}
this is Dao layer.
when I run ControllerShowInfo.class. There is a problem as follows:
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'controllerShowInfo': Unsatisfied dependency expressed through field 'repository': No qualifying bean of type [com.yxzh.mapper.stockreviewsRepositoryDao] found for dependency [com.yxzh.mapper.stockreviewsRepositoryDao]: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {#org.springframework.beans.factory.annotation.Autowired(required=true)}; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.yxzh.mapper.stockreviewsRepositoryDao] found for dependency [com.yxzh.mapper.stockreviewsRepositoryDao]: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations:
but when I run another .class
#SpringBootApplication
public class Application
{
public static void main(String[] args) throws Exception
{
SpringApplication.run(Application.class, args);
}
}
and implement CommmandLineRunner
#Component
public class DataInitialization implements CommandLineRunner{
#Autowired
stockreviewsRepositoryDao repository;
#Override
public void run(String... args) throws Exception
{
System.out.println("-------------------------------");
int count=0;
for (stockreviewsBean reviewBean : repository.findAll())
{
count++;
System.out.println(reviewBean.getTitle());
}
System.out.println(count);
}
}
It worked well. It really confused me.

Answer 1

Have you tried to annotate
stockreviewsRepositoryDao with #Repository
and
Application with #EnableJpaRepositories(basePackageClasses = {"stockreviewsRepositoryDao.class"})