三种springboot启动时加载方式一个注解，两个接口，常用于数据预热：`@PostConstruct``implements CommandLineRunner``implements ApplicationRunner`

@Slf4j
@EnableAsync
@SpringBootApplication
public class ApiApplication extends SpringBootServletInitializer implements CommandLineRunner {

@Autowired
private RiskLevelService riskLevelService;public static void main(String[] args) {SpringApplication.run(ApiApplication.class, args);
}@Override
protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {return application.sources(ApiApplication.class);
}//implements CommandLineRunner
@Override
public void run(String... args) throws Exception {log.info("假装在预热");
}//@PostConstruct
//public void preLoadCache() {
//	log.info("假装在预热");
//}//implements ApplicationRunner
//@Override
//public void run(ApplicationArguments args) throws Exception {
//	log.info("假装在预热");
//}

}