.创建独立的Spring应用程序.

.嵌入tomcat,Jetty或者Undertow,无需部署war文件;

.允许通过Maven来获取starter;

.尽可能的自动配置Spring.

.提供生产就绪型功能,如指标,健康检查和外部配置.

.绝对没有代码生成,对xml没有要求配置.

 <!-- AOP -->

        <dependency>

            <groupId>org.springframework.boot</groupId>

            <artifactId>spring-boot-starter-aop</artifactId>

        </dependency>

        <!-- web开发包 -->

        <dependency>

            <groupId>org.springframework.boot</groupId>

            <artifactId>spring-boot-starter-web</artifactId>

        </dependency>

        <!-- 加载测试包 -->

        <dependency>

            <groupId>org.springframework.boot</groupId>

            <artifactId>spring-boot-starter-test</artifactId>

            <scope>test</scope>

        </dependency>

//@SpringBootApplication

@Controller

//启动spring boot自动装配.

@EnableAutoConfiguration

public class DemoApplication {

    @RequestMapping("/test")

    @ResponseBody

    public Map<String,Object> test(){

        Map<String,Object> map = new HashMap<String,Object>();

        map.put("key","value");

        map.put("key2","value");

        return map;

    }

    public static void main(String[] args) {

        SpringApplication.run(DemoApplication.class, args);

    }

}