Spring Boot - Handle to Hibernate Sessionfactory

Spring Boot - Handle to Hibernate SessionFactory

You can accomplish this with:

SessionFactory sessionFactory = 
    entityManagerFactory.unwrap(SessionFactory.class);

where entityManagerFactory is an JPA EntityManagerFactory.

package net.andreaskluth.hibernatesample;

import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;

import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

@Component
public class SomeService {

  private SessionFactory hibernateFactory;

  @Autowired
  public SomeService(EntityManagerFactory factory) {
    if(factory.unwrap(SessionFactory.class) == null){
      throw new NullPointerException("factory is not a hibernate factory");
    }
    this.hibernateFactory = factory.unwrap(SessionFactory.class);
  }

}

How to autowire Hibernate SessionFactory in Spring boot

Try enabling HibernateJpaSessionFactoryBean in your Spring configuration.

@Bean
public HibernateJpaSessionFactoryBean sessionFactory() {
    return new HibernateJpaSessionFactoryBean();
}

Have a look at:
https://stackoverflow.com/a/33881946/676731

By Spring configuration I mean a class annotated with @Configuration annotation or @SpringBootApplication (it is implicitly annotated with @Configuration).

Spring boot - Unable to build hibernate SessionFactory; nested exception is java.lang.UnsupportedOperationException

Spring Boot version 1.5.15.RELEASE has dependency of Hibernate is <hibernate.version>5.0.12.Final</hibernate.version>.

So removing <hibernate.version>5.2.13.Final</hibernate.version> from your pom and let Spring boot download compatible version with it should solve the problem.

after this clean install dependencies and generate war.

and also remove version of mysql connector(<version>5.1.8</version>):

<dependency>
   <groupId>mysql</groupId>
   <artifactId>mysql-connector-java</artifactId>         
</dependency>

required a bean of type 'org.hibernate.SessionFactory' that not found

Add this to your config file:

@Bean  
public SessionFactory sessionFactory(HibernateEntityManagerFactory entityManagerFactory){  
    return entityManagerFactory.getSessionFactory();  
} 

Then, in your application.properties file, add

spring.jpa.properties.hibernate.current_session_context_class=org.springframework.orm.hibernate5.SpringSessionContext

Hope it helps!

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