好处：1.敏捷开发 2.内置Tomcat 3.不用配置xml，只需写propertiy文件 4.微服务架构整合SpringCloud 5.配置简单
SpringBootHelloWorld
1.导入依赖
父类依赖 继承父类（其中自动引入大部分jar包）
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.9.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
springframework依赖（web包自动引入springmvc等许多jar）
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
</dependencies>
2.编写Controller
import java.util.Map;
@EnableAutoConfiguration //自动配置
@RestController //返回Json
public class baseController {
@RequestMapping("/index")
public String getMsg(){
return "success";
}
@RequestMapping("/get")
public Map<String,Object> getMap(){
HashMap<String, Object> map = new HashMap<String, Object>();
map.put("mark","first springboot ");
return map;
}
public static void main(String args[]){
SpringApplication.run(baseController.class,args);
}
}
3.页面访问
http://localhost:8080/index
http://localhost:8080/get