Create a new SpringBoot project in the IDEA community version

The spring project is useless in the new project of the idea community version. There are generally two methods on the Internet: downloading demos from the official website and using plug-ins. Here is an example from the official website.

Spring official website demo

Spring Initializr: https://start.spring.io/

Configure and choose what you are familiar with
Project: choose to use gradle to build the project, groovy language configuration
Language: choose Java
Spring boot: choose a newer version 3.0.5
Packaging: jar
Java: Version 17 (java17 is required after Spring boot3)
Dependencies: Spring Web

After selecting, click generate to download the project zip package

Java17

Choose zulu jdk here
https://www.azul.com/downloads/?package=jdk#zulu

project run

package com.example.demo;

import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
@RequestMapping("/hello")
public class DemoController {
    
    
    @RequestMapping("/boot")
    public String helloBoot() {
    
    
        return "Hello Spring Boot！";
    }
}

Browser access after running

http://localhost:8080/hello/boot

local access is fine

Modify port
application.properties

#tomcat服务默认端口
server.port=7355

Gradle package and run

Because gradle was selected when downloading the demo, gradle is used for packaging here

Click bootJar in the gradle task

部署运行
java -jar demo-0.0.1-SNAPSHOT.jar

服务器部署
nohup java -jar demo-0.0.1-SNAPSHOT.jar  &

reference

https://blog.csdn.net/qq_40036754/article/details/125999709
https://juejin.cn/post/7039164020644904968
https://zhuanlan.zhihu.com/p/578972804
https://blog.csdn.net/weixin_49001740/article/details/122604111
https://blog.csdn.net/oldfish_/article/details/128172075