SpringBoot 是构建在 SpringMVC 基础上的新一代 Web 开发框架。相比 SpringMVC，SpringBoot 的配置更简单，上手更容易，因此受到了开发者们的欢迎。
    SpringBoot内置了Tomcat,不需要配置Servlet了, 然后

    1. <parent>
    2.     <groupId>org.springframework.boot</groupId>
    3.     <artifactId>spring-boot-starter-parent</artifactId>
    4.     <version>1.5.3.RELEASE</version>
    5. </parent>
    7. <dependencies>
    8.     <dependency>
    9.         <groupId>org.springframework.boot</groupId>
    10.         <artifactId>spring-boot-starter-web</artifactId>
    11.     </dependency>
    12.     <!-- ... -->
    13. </dependencies>

    创建新 SpringBoot 应用: 

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

    private static Class<MySpringBootApplication> applicationClass = MySpringBootApplication.class;
}