参考lindaZ的IntelliJ IDEA 创建spring boot 的Hello World 项目

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1.Open IDEA，choose "New-->Project"

2.Choose "Spring Initializr"

-> next

3.Project Metadata:

Group: com.chanchifeng
Artifact: server-system
Description: server-system project for Spring Boot

-> next

4. Choose "Web"

-> next

5.删除.mvn，mvnw，mvnw.cmd。

创建HelloController

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HelloController.java:

package com.chanchifeng.serversystem;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.ComponentScan;

@SpringBootApplication
@ComponentScan("com.chanchifeng.serversystem.ctrl")
public class ServerSystemApplication {

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

修改HelloController

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package com.chanchifeng.serversystem.ctrl;

import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

/**
 * @author:porschan
 * @description:
 * @date: Created in 10:14 2018/6/15
 * @modified By:
 */

@RestController
@EnableAutoConfiguration
public class HelloController {

    @RequestMapping("/hello")
    public String index(){
        System.out.println("进入controller");
        return "Hello World!";
    }
}

运行com.chanchifeng.serversystem.ServerSystemApplication#main，在浏览器输入http://localhost:8080/hello,spring Boot项目搭建成功。