Spring Boot 入门

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 MicroServices

　　微服务：架构风格（服务微化），一个应用应该是一组小型服务，可以通过HTTP的方式进行互通，每一个功能单元最最终都是一个可以独立替换和独立升级的软件单元；

 HelloWord

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       4.0.0
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       com.ahabest.springboot
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       HelloWord
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       0.0.1-SNAPSHOT
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       HelloWord
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       HelloWord
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        1.8
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        org.springframework.boot
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        spring-boot-starter-parent
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        2.1.6.RELEASE
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         org.springframework.boot
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         spring-boot-starter-web
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         org.springframework.boot
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         spring-boot-starter-test
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         test
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          org.springframework.boot
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          spring-boot-maven-plugin
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1 package com.ahabest.springboot.controller; 2 import org.springframework.stereotype.Controller; 3 import org.springframework.web.bind.annotation.RequestMapping; 4 import org.springframework.web.bind.annotation.ResponseBody; 5 @Controller 6 public class HelloWord { 7     @ResponseBody 8     @RequestMapping("/hello") 9     public String hello() {10         return "Hello Word!";11     }12 }

1 package com.ahabest.springboot;2 import org.springframework.boot.SpringApplication;3 import org.springframework.boot.autoconfigure.SpringBootApplication;4 @SpringBootApplication5 public class HelloWordApplication {6     public static void main(String[] args) {7         SpringApplication.run(HelloWordApplication.class, args);8     }9 }