如何将JPA属性添加到@Bean

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean;

@Configuration
public class JpaConfig {

    @Bean
    public LocalContainerEntityManagerFactoryBean entityManagerFactory() {
        LocalContainerEntityManagerFactoryBean emf = new LocalContainerEntityManagerFactoryBean();
        // 配置数据源等相关属性
        // ...
        return emf;
    }

}

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import javax.persistence.EntityManagerFactory;

@Service
public class MyService {

    private final EntityManagerFactory entityManagerFactory;

    @Autowired
    public MyService(EntityManagerFactory entityManagerFactory) {
        this.entityManagerFactory = entityManagerFactory;
    }

    // 在这里可以使用entityManagerFactory进行JPA相关操作
    // ...

}