Could not autowire field while inserting data into the database

Question

Question title may be same, but I tried to solve this error by looking at previous answers, but nothing happen. I'm getting following error while insert data into the database. Tables are created, but there is an error while inserting data into the database.

SEVERE: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'InitDbService': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.app.flight.repo.RoleRepository com.app.flight.service.InitDbService.roleRepository; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'roleRepository': Cannot create inner bean '(inner bean)#397030fe' 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)#397030fe': Cannot resolve reference to bean 'entityManagerFactory' while setting constructor argument; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'entityManagerFactory' is defined
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:334)

This is my Role.java entity class

@Entity
public class Role {
   @Id
   @GeneratedValue
   private Integer id;
   private String name;

   (getters and setters)

This is RoleRepository.java interface

package com.app.flight.repo;

import org.springframework.data.jpa.repository.JpaRepository;
import com.app.flight.entity.Role;

public interface RoleRepository extends JpaRepository<Role, Integer> {

}

This is service class InitDbService.java

package com.app.flight.service;

import javax.annotation.PostConstruct;
import javax.transaction.Transactional;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import com.app.flight.entity.Role;
import com.app.flight.repo.RoleRepository;

@Transactional
@Service
public class InitDbService {

    @Autowired
    private RoleRepository roleRepository;

    @PostConstruct
    public void init(){

        Role roleUser = new Role();
        roleUser.setName("ROLE_USER");
        roleRepository.save(roleUser);

        Role roleAdmin= new Role();
        roleAdmin.setName("ROLE_ADMIN");
        roleRepository.save(roleAdmin);

    }
}

This is applicationContext.xml

<?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:context="http://www.springframework.org/schema/context"
    xmlns:jdbc="http://www.springframework.org/schema/jdbc"
    xmlns:tx="http://www.springframework.org/schema/tx"
    xmlns:jpa="http://www.springframework.org/schema/data/jpa"
    xmlns:repository="http://www.springframework.org/schema/data/repository"
    xsi:schemaLocation="http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-4.1.xsd
        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-4.1.xsd
        http://www.springframework.org/schema/data/jpa http://www.springframework.org/schema/data/jpa/spring-jpa-1.8.xsd
        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.1.xsd
        http://www.springframework.org/schema/data/repository http://www.springframework.org/schema/data/repository/spring-repository-1.7.xsd">

<context:component-scan base-package="com.app.flight">
    <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
</context:component-scan>

<jdbc:embedded-database type="HSQL" id="dataSource"/>

<bean class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean" id="emf">
    <property name="packagesToScan" value="com.app.flight.entity"/>
    <property name="dataSource" ref="dataSource"/>
    <property name="jpaProperties">
        <props>
            <prop key="hibernate.show_sql">true</prop>
            <prop key="hibernate.hbm2ddl.auto">create</prop>
        </props>
    </property>
    <property name="persistenceProvider">
        <bean class="org.hibernate.jpa.HibernatePersistenceProvider"/>
    </property>
</bean>

<tx:annotation-driven transaction-manager="transactionManager"/>

<bean class="org.springframework.orm.jpa.JpaTransactionManager" id="transactionManager">
    <property name="dataSource" ref="dataSource"/>
</bean>

<jpa:repositories base-package="com.app.flight.repo"/>

</beans>

Answer 1

It expects that the EntityManagerFactory has a specific name in that case "entityManagerFactory". You defined a custom name "emf". I assume the problem is resolved if you adapt the entry in the xml file.