Spring Boot: Consider defining a bean named 'entityManagerFactory' in your configuration

Question

I am receiving the following error when trying to start up my Spring Boot application:

Note: This error only occurs when I put the @Autowired annotation over the IDeviceRepository iDeviceRepository; in the DeviceDao.java class

I have yet to get the DeviceDao.java to persist to the database - but the entities are being created

> *************************** 
> APPLICATION FAILED TO START
> ***************************
> 
> Description: 
> Field iDeviceRepository in com.abc.dao.DeviceDao required a bean named 'entityManagerFactory' that could not be found. 
> Action:
> Consider defining a bean named 'entityManagerFactory' in your configuration.

This is directory structure of the project:

├───src
│   ├───main
│   │   ├───java
│   │   │   └───com
│   │   │       └───abc
│   │   │           ├───controller
│   │   │           ├───dao
│   │   │           │   └───repositories
│   │   │           ├───init
│   │   │           ├───model
│   │   │           ├───service
│   │   │           └───util
│   │   │               ├───common
│   │   │               ├───enums
│   │   │               ├───exceptions
│   │   │               └───interfaces
│   │   └───resources
│   │       ├───static
│   │       │   ├───css
│   │       │   ├───fonts
│   │       │   ├───img
│   │       │   └───js
│   │       └───templates

com.abc.init.Application.java

package com.abc.init;

@SpringBootApplication
@EnableJpaRepositories("com.abc.dao.repositories")
@EntityScan(basePackages = { "com.abc.model" })
@ComponentScan(basePackages={ "com.abc.controller", "com.abc.service", "com.abc.dao" })
public class Application
{
    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }
}

com.abc.controller.RegisterController.java

package com.abc.controller;

@Controller
public class RegisterController
{
    @Autowired
    RegisterServiceImpl registerService;

    @GetMapping("/register")
    public String registerForm(Model model) {
        model.addAttribute("device", new Device());
        return "registerDevice";
    }

    @PostMapping("/register")
    public String registerSubmit(@ModelAttribute Device device) {
        registerService.registerDevice(device)
        return "registerDeviceSuccess";
    }
}

com.abc.service.RegisterServiceImpl.java

package com.abc.service;

@Service
public class RegisterServiceImpl implements IRegisterService
{
    @Autowired
    DeviceDao devDao;

    public boolean registerDevice (Device device) {
        devDao.saveDevice(device);
        return true;
    }
}

com.abc.util.interfaces.IRegisterService

package com.abc.util.interfaces;

public interface IRegisterService
{
    public boolean registerDevice(Device device);
}

com.abc.dao.DeviceDao.java

package com.abc.dao;

@Repository
public class DeviceDao 
{
    @Autowired
    IDeviceRepository iDeviceRepository;

    public Device saveDevice(Device device) {
        return iDeviceRepository.save(device);
    }
}

com.abc.dao.repositories.IDeviceRepository.java

package com.abc.dao.repositories;

@Repository
public interface IDeviceRepository extends CrudRepository<Device, Long> {}

application.properties

# Exposed HTTP Port
server.port = 8090

# Database Configuration Parameters
spring.datasource.url=jdbc:postgresql://localhost:5432/mydb
spring.datasource.username=mydbadmin
spring.datasource.password=mydbpassword
spring.datasource.driver-class-name=org.postgresql.Driver

# Hibernate Configurations
spring.jpa.hibernate.ddl-auto=create-drop
spring.jpa.properties.hibernate.dialect = org.hibernate.dialect.PostgreSQLDialect
spring.jpa.properties.hibernate.temp.use_jdbc_metadata_defaults=false

# Display SQL Commands in Terminal
spring.jpa.show-sql=true

Stack Trace:

java.lang.IllegalStateException: Failed to load ApplicationContext
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'registerController': Unsatisfied dependency expressed through field 'registerService'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'registerServiceImpl': Unsatisfied dependency expressed through field 'devDao'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'deviceDao': Unsatisfied dependency expressed through field 'iDeviceRepository'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'IDeviceRepository': Cannot create inner bean '(inner bean)#36dce7ed' of type [org.springframework.orm.jpa.SharedEntityManagerCreator] while setting bean property 'entityManager'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name '(inner bean)#36dce7ed': Cannot resolve reference to bean 'entityManagerFactory' while setting constructor argument; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'entityManagerFactory' available
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'registerServiceImpl': Unsatisfied dependency expressed through field 'devDao'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'deviceDao': Unsatisfied dependency expressed through field 'iDeviceRepository'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'IDeviceRepository': Cannot create inner bean '(inner bean)#36dce7ed' of type [org.springframework.orm.jpa.SharedEntityManagerCreator] while setting bean property 'entityManager'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name '(inner bean)#36dce7ed': Cannot resolve reference to bean 'entityManagerFactory' while setting constructor argument; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'entityManagerFactory' available
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'deviceDao': Unsatisfied dependency expressed through field 'iDeviceRepository'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'IDeviceRepository': Cannot create inner bean '(inner bean)#36dce7ed' of type [org.springframework.orm.jpa.SharedEntityManagerCreator] while setting bean property 'entityManager'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name '(inner bean)#36dce7ed': Cannot resolve reference to bean 'entityManagerFactory' while setting constructor argument; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'entityManagerFactory' available
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'IDeviceRepository': Cannot create inner bean '(inner bean)#36dce7ed' of type [org.springframework.orm.jpa.SharedEntityManagerCreator] while setting bean property 'entityManager'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name '(inner bean)#36dce7ed': Cannot resolve reference to bean 'entityManagerFactory' while setting constructor argument; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'entityManagerFactory' available
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name '(inner bean)#36dce7ed': Cannot resolve reference to bean 'entityManagerFactory' while setting constructor argument; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'entityManagerFactory' available
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'entityManagerFactory' available

Can anyone please advise?

Solution

In spring-boot, you don't need to annotate your repository class with the repository annotation.

@Repository

You just need to extend JPARepository on your interface and Spring-boot will take care of the rest. For Example:

public interface YourRepository extends JpaRepository<YourDomain, Serializable> {

    YourDomain findBysomeparameter(Long parameter);

}

And you don't need to add these annotations:

@EnableJpaRepositories
@EntityScan
@ComponentScan

Spring-boot does that automatically unless you're doing some configuration.

I hope this will help.

Comments

[Kamil W]

Remove @EnableJpaRepositories, @EntityScan, @ComponentScan annotations and check if this exception appears. Springboot automaticly makes a lot of configurations and those annotations can has incorrect impact on it. Besides you should user @Service annotation on classes which do some business logic (like RegisterServiceImpl in your case). @Repository annotation is dedicated for classes responsible for fetching data from diffrent sources.

[AK47]

Unfortunatley it doesnt work - I think I need to explicitly use the 3 annotations due to the structure of the project. I've added the stack trace

[Kamil W]

Can you also post application.properties file? Might be helpful.

[AK47]

@KamilW. ServiceImpl classes should have @Service instead of @Repository ?

[AK47]

Added application.properties

[Kamil W]

Please take a look at this article: baeldung.com/spring-bean-annotations

[M. Deinum]

Put your Application in com.abc instead of com.abc.init. Remove all the annotations but @SpringBootApplication.

[AK47]

@M. Deinum when I move application to com.abc and remove annotations I get the following error: Description: Field emailService in com.abc.controller.RegisterController required a bean of type 'com.abc.service.EmailServiceImpl' that could not be found. Action: Consider defining a bean of type 'com.abc.service.EmailServiceImpl' in your configuration.

[kj007]

@AK47 can you remove DeviceDao repository as you already have IDeviceRepository with extending Curd or JPA, it has all crud methods so no need to define crud operations in it..if you need any custom then you can define same in your repository interface.

[vanillaSugar]

Try to use IRegisterService in RegisterController class instead of RegisterServiceImpl. Like this: @Autowired IRegisterService registerService;

[Haripriya]

If you are using maven, then (1). Delete the repositories in .m2 (2). Then recompile project and try build again. Reference

[AK47]

When I updated the interface to public interface IDeviceRepository extends JpaRepository<Device, Long> {} and remove the @Repository annotation it still throws the same error. As for the annotations - see my last comment on the question - the annotations are required currently because of the structure of the project, but even when moving the Application.java class to com.abc package and removing the annotation it's still failing to build

[srinivas]

Yes, the same issue I am observing. Is there any solution ?.

[fsalazar_sch]

Stop coping the same solution without testing

[Pawan Tiwari]

@fsalazar_sch can you share the reference because this code is from my project that I've used.