1：创建主文件

package com.liyafei.controller;

import org.springframework.boot.SpringApplication;

import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication

public class SpringBootDemoApplication {

public static void main(String[] args) {

SpringApplication.run(SpringBootDemoApplication.class, args);

}

}

2：在pom文件中添加依赖

org.springframework.bootspring-boot-starter-parent1.3.4.RELEASEorg.springframework.bootspring-boot-starter-web