Config.java 文件源码

@Bean
public EntityManagerFactory entityManagerFactory(JpaVendorAdapter jpaVendorAdapter, DataSource dataSource) {
    LocalContainerEntityManagerFactoryBean factory = new LocalContainerEntityManagerFactoryBean();
    factory.setJpaVendorAdapter(jpaVendorAdapter);
    factory.setPackagesToScan("hello.entities");
    factory.setDataSource(dataSource);
    factory.afterPropertiesSet();
    return factory.getObject();
}