您可以捕获
ApplicationReadyEvent然后插入演示数据，例如：
@Componentpublic class DemoData { @Autowired private final EntityRepository repo; @EventListener public void appReady(ApplicationReadyEvent event) { repo.save(new Entity(...)); }}或者，您可以实现
CommandLineRunner或
ApplicationRunner在应用程序完全启动时加载演示数据：
@Componentpublic class DemoData implements CommandLineRunner { @Autowired private final EntityRepository repo; @Override public void run(String...args) throws Exception { repo.save(new Entity(...)); }}@Componentpublic class DemoData implements ApplicationRunner { @Autowired private final EntityRepository repo; @Override public void run(ApplicationArguments args) throws Exception { repo.save(new Entity(...)); }}或者甚至像在您的Application（或其他“ config”）类中的Bean一样实现它们：
@SpringBootApplicationpublic class Application { public static void main(String[] args) { SpringApplication.run(Application.class, args); } @Bean public CommandLineRunner demoData(EntityRepository repo) { return args -> { repo.save(new Entity(...)); } }}
