CODEWITHSUNDEEP
springspring-mvc
Shamim Ahmad
Shamim Ahmad

Reputation: 808

Exception Autowiring Service interface in controller class

I and trying to autowire a service interface in the controller but i am getting an error, please help. Codes below :

Exception

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'todoComponentController': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: com.rapidinstinct.avia.plat.service.component.TodoCS com.rapidinstinct.avia.plat.service.rest.controller.TodoComponentController.tocs; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.rapidinstinct.avia.plat.service.component.TodoCS] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}

Controller class

@RestController
@RequestMapping ("/todo")
public class TodoComponentController extends BaseController {
    private static Logger _LOG = LoggerFactory.getLogger(TodoComponentController.class); 

    @Autowired TodoCS tocs;

     @RequestMapping(method = RequestMethod.POST)
        public create() {
            return null;
        }
}

Service Interface 

@Service
public interface TodoCS extends ComponentService {

}

XML file

<?xml version="1.0" encoding="UTF-8"?>

<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xmlns:util="http://www.springframework.org/schema/util"
    xmlns:context="http://www.springframework.org/schema/context"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd        
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
        http://www.springframework.org/schema/util  http://www.springframework.org/schema/util/spring-util.xsd"
        >

    <context:annotation-config />   

    <context:component-scan base-package="com.rapidinstinct.avia.plat.service, com.rapidinstinct.avia.plat.cbo.mapper, com.rapidinstinct.avia.plat.bo.project.mapper"/> 

</beans>

Upvotes: 1

Views: 1536

Answers (3)

Jens
Jens

Reputation: 69440

You have to annotate the implementation of TodoCS Not the interface itself.

@Service
public class TodoCSImpl implements TodoCS {

}

Then you can autowire the class.

Upvotes: 1

Arpit Aggarwal
Arpit Aggarwal

Reputation: 29266

Spring, at time of context initialization is trying to search a bean name TodoCS in package : com.rapidinstinct.avia.plat.service.component.TodoCS.

And in configuartion file you mentioned package name as : com.rapidinstinct.avia.plat.service. Try adding com.rapidinstinct.avia.plat.service.component.TodoCS in base package scan as below:

<context:component-scan base-package="com.rapidinstinct.avia.plat.service, com.rapidinstinct.avia.plat.cbo.mapper, com.rapidinstinct.avia.plat.bo.project.mapper,com.rapidinstinct.avia.plat.service.component"/>

Upvotes: 0

Mithun
Mithun

Reputation: 8067

You need a class which implements TodoCS interface. Then, annotation the implementation class with @Component annotation.

Upvotes: 0

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