Spring Boot HelloWorld

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.5.9.RELEASE</version>
    </parent>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
    </dependencies>

​
/**
 *  @SpringBootApplication 来标注一个主程序类，说明这是一个Spring Boot应用
 */
@SpringBootApplication
public class HelloWorldMainApplication {
​
    public static void main(String[] args) {
​
        // Spring应用启动起来
        SpringApplication.run(HelloWorldMainApplication.class,args);
    }
}

@Controller
public class HelloController {
​
    @ResponseBody
    @RequestMapping("/hello")
    public String hello(){
        return "Hello World!";
    }
}
​

 <!-- 这个插件，可以将应用打包成一个可执行的jar包；-->
    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>