HibernatePersistenceProvider.java 文件源码

@Override
public void start() {
    StandardServiceRegistry registry = new StandardServiceRegistryBuilder()
            .applySetting("hibernate.connection.username", config.persistence.user)
            .applySetting("hibernate.connection.password", config.persistence.pass)
            .applySetting("hibernate.connection.driver_class", config.persistence.driver)
            .applySetting("hibernate.connection.url", config.persistence.url)
            .applySetting("hibernate.dialect", config.persistence.dialect)
            .applySetting("hibernate.connection.pool_size", config.persistence.pool_size + "")
            .applySetting("hibernate.hbm2ddl.auto", "update")
            .applySetting("hibernate.show_sql", config.persistence.showSQL + "")
            .build();

    MetadataSources sources = new MetadataSources(registry);

    Timings.time("RegisterDBEntities", () ->
            new Reflections().getTypesAnnotatedWith(Entity.class).forEach(sources::addAnnotatedClass));

    try {
        Metadata metadata = sources.buildMetadata();
        sessionFactory = metadata.buildSessionFactory();
    } catch (Exception e) {
        StandardServiceRegistryBuilder.destroy(registry);
        e.printStackTrace();
    }
}