springBoot快速搭建项目

为了方便，controller就直接在入口类中写了

@SpringBootApplication //springboot的核心注解，目的是开启自动配置.包含了@ComponentScan@Configuration@EnableAutoConfiguration
@RestController          //组合注解。包含@Controller和@ResponseBody
public class DemoApplication {

@RequestMapping("/")
public String index(){
return "Hello spring boot";
}

public static void main(String[] args) {
SpringApplication application=new SpringApplication(DemoApplication.class);

application.run(args);
}
}

直接运行入口类即可