关于spring-boot的demo的启动错误Caused by: org.springframework.context.ApplicationContextException: Unable to

Caused by: org.springframework.context.ApplicationContextException: Unable to start EmbeddedWebApplicationContext due to missing EmbeddedServletContainerFactory bean.

 

导致这样的错误的原因有很多

我的原因是注解写错了

@SpringBootApplication
public class HelloWorldApp {
    public static void main(String[] args) {
        SpringApplication.run(HelloWorldApp.class,args);
    }
}