SpringBoot

一個功能
瀏覽器發送hello請求，伺服器接受請求並處理,響應Hello World字元串.
1.創建一個maven工程；(jar)
2.導入依賴Spring Boot相關的依賴

參考：https://projects.spring.io/spring-boot/#quick-start

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>2.0.2.RELEASE</version>
</parent>
<dependencies>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
</dependencies>

3.編寫一個主程式；啟動Spring Boot應用
4.編寫相關Controller、Service

package hello;

import org.springframework.boot.*;
import org.springframework.boot.autoconfigure.*;
import org.springframework.stereotype.*;
import org.springframework.web.bind.annotation.*;

@Controller
@EnableAutoConfiguration
public class SampleController {

    @RequestMapping("/")
    @ResponseBody
    String home() {
        return "Hello World!";
    }

    public static void main(String[] args) throws Exception {
        SpringApplication.run(SampleController.class, args);
    }
}

5.運行主程式測試
6.簡化部署

pox.xml配置

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

可以將應用打包生成一個可執行的jar包