Spring Boot 之Hello Word

Spring Boot官网：http://projects.spring.io/spring-boot/

环境准备：maven 3.3.5、jdk8、Idea

1.创建maven项目工程

2.引入starters

 <parent>
     <groupId>org.springframework.boot</groupId>
     <artifactId>spring-boot-starter-parent</artifactId>
     <version>1.5.11.RELEASE</version>
 </parent>
 <dependencies>
     <dependency>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-web</artifactId>
     </dependency>
 </dependencies>

3.创建主程序

 @SpringBootApplication
 public class HelloWorldMainApplication {

     public static void main(String[] args){
         //Spring 应用启动起来
         SpringApplication.run(HelloWorldMainApplication.class, args);
     }
 }

4.创建一个Controller

 @Controller
 public class HelloController {

     @RequestMapping("/hello")
     @ResponseBody
     public String hello(){
         return "Hello Word!";
     }
 }

5.运行主方法，并在浏览器输入：localhost:8080/hello ，就会出现Hello Word!

6.也可以打包成jar包 进行部署

url:https://docs.spring.io/spring-boot/docs/1.5.11.RELEASE/reference/htmlsingle/#getting-started-first-application-executable-jar

这个插件，可以将应用打包成一个jar包 

 <build>
     <plugins>
         <plugin>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-maven-plugin</artifactId>
         </plugin>
     </plugins>
 </build>