Why I am getting NoSuchBeanDefinitionException when I deploy my Spring application in Tomcat? - spring

Question

I am working with Spring and Spring Data JPA. When deploying my application in Tomcat I'm getting the following exception:
org.springframework.beans.factory.BeanCreationException: Error creating bean with name
'myController': Injection of autowired dependencies failed; nested exception is
org.springframework.beans.factory.BeanCreationException: Could not autowire field:
private com.service.MyService com.controller.MyController.myService; nested exception
is org.springframework.beans.factory.BeanCreationException: Error creating bean with name
'MyService': Injection of autowired dependencies failed; nested exception is
org.springframework.beans.factory.BeanCreationException: Could not autowire field:
private com.repository.MyRepository com.service.MyService.myRepository; nested exception is
org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type
[com.repository.MyRepository] 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)}
The following are my code:
MyController.java
package com.controller;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.MediaType;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
import com.domain.MyEntity;
import com.service.MyService;
#RestController
#RequestMapping(MyController.ROOT_RESOURCE_PATH)
public class MyController{
public static final String ROOT_RESOURCE_PATH = "/test";
#Autowired
private MyService myService;
#RequestMapping(value="/list", method = RequestMethod.GET, produces = MediaType.APPLICATION_JSON_VALUE)
public List<MyEntity> getAll() {
return myService.getAll();
}
}
MyService.java
package com.service;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import com.domain.MyEntity;
import com.repository.MyRepository;
#Service(value = "MyService")
public class MyService {
#Autowired
private MyRepository myRepository;
public List<MyEntity> getAll() {
return myRepository.findAll();
}
}
MyRepository.java
package com.repository;
import java.util.List;
import org.springframework.data.repository.Repository;
import com.domain.MyEntity;
public interface MyRepository extends Repository<MyEntity, Long> {
public List<MyEntity> findAll();
}
}
MyApplication-context.xml
<jpa:repositories base-package="com.repository" />
<context:component-scan base-package="com.service" />
<context:component-scan base-package="com.controller" />
<context:annotation-config />

Answer 1

I'm not seeing your repository annotated. That might be the reason why Spring couldn't create a bean for MyRepository during component scan. Annotate it with #Repository