spring boot bilibili

spring boot bilibili

spring boot bilibili

idea不到spring boot插件plugin，不到spring Initializr

安装了付费版就OK，社区版本是没有的

springboot 约定大于配置，开发人员专注逻辑

为什么使用spring boot

spring cloud（云服务，微服务），sprig boot 相互成就；

This application has no explicit mapping for /error, so you are seeing this as a fallback

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns=".0.0" xmlns:xsi=";
	xsi:schemaLocation=".0.0 .0.0.xsd">
	<modelVersion>4.0.0</modelVersion>
	<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>2.5.1</version>
		<relativePath/> <!-- lookup parent from repository -->
	</parent>
	<groupId></groupId>
	<artifactId>demo</artifactId>
	<version>0.0.1-SAPSHOT</version>
	<name>demo</name>
	<description>Demo project for Spring Boot</description>
	<properties>
		<java.version>1.8</java.version>
	</properties>
	<dependencies>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-web</artifactId>
		</dependency>

		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-test</artifactId>
			<scope>test</scope>
		</dependency>
	</dependencies>

	<build>
		<plugins>
			<plugin>
				<groupId>org.springframework.boot</groupId>
				<artifactId>spring-boot-maven-plugin</artifactId>
			</plugin>
		</plugins>
	</build>

</project>

package .demo;

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

@RestController
@RequestMapping("/hello")
public class Hello {
    @RequestMapping("/say")
    public String sayHi(){
        return "Hello  World";
    }
}

package ;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class DemoApplication {

	public static void main(String[] args) {
		int a =1;
		println(12);
		SpringApplication.run(, args);
	}

}

端口占用问题：

![在这里插入图片描述](.jpg?x-oss-process=image/watermark,type_ZmFuZpoZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmzZG4ubmV0LFxXzM4OTk4MjEz,size_16,color_FFFFFF,t_70