SpringBoot开发第1章，Ideal开发设

一、下载Idea安装，地址：https://www.jetbrains.com/idea/download/other.html，我使用的社区版

二、下载jdk，安装jdk，配置环境变量

　新建JAVA_HOME 系统变量，设置jdk安装路径

再path变量中后面添加，%JAVA_HOME%\bin

检查jdk是否安装成功，执行Java -version

λ java -version
java version  "1.8.0_231"
Java(TM) SE Runtime Environment (build 1.8.0_231-b11)
Java HotSpot(TM) 64-Bit Server VM (build 25.231-b11, mixed mode)

四、配置 maven ，

1. 下载maven ， https://archive.apache.org/dist/maven/maven-3/3.6.2/binaries/
2. 设置maven环境变量，再path后面添加 C:\software\apache-maven-3.6.2\bin ，测试是否正常

λ mvn  -v
Apache Maven 3.8.5 (3599d3414f046de2324203b78ddcf9b5e4388aa0)
Maven home: C:\software\apache-maven-3.8.5
Java version: 1.8.0_231, vendor: Oracle Corporation, runtime: C:\software\Java\jdk1.8.0_231\jre
Default locale: zh_CN, platform encoding: GBK
OS name:  "windows 10" , version:  "10.0" , arch:  "amd64" , family:  "windows"

3.　　新建一个本地仓库地址，C:\software\localRepository

设置conf/settings.xml配置文件,设置阿里云仓库和本地仓库

复制出来，设置本地仓库  
C: //software//localRepository

设置阿里云仓库，根据maven.aliyun.com帮助设置
  
  aliyunmaven
  *
  阿里云公共仓库
  https: //maven.aliyun.com/repository/public

　　设置ideal=》setting=maven仓库地址，

五、创建maven项目

六、手工搭建springboot项目，添加pom引用，让后加载

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>2.7.9</version>
</parent>
<dependencies>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>

    </dependency>
</dependencies>

七、增加文件夹，输入如下代码

package example;

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

@RestController
@EnableAutoConfiguration
public class Example {

    @RequestMapping("/")
    String home(){
        return "HelloWolrd888";
    }
    public static  void main(String[] args){
        SpringApplication.run(Example.class,args);
    }
}