SpringBoot3基础：最简项目示例

说明

本文建立一个最基本的SpringBoot3项目，依赖项仅包含 spring-web（SpringMVC）。

备注：SpringBoot3需要JDK17支持，配置方法参考： SpringBoot3项目中配置JDK17

项目结构图示

POM <?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http:// .w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>3.1.3</version> <relativePath/> <!-- lookup parent from repository --> </parent> <groupId>com.example</groupId> <artifactId>hello-spring-boot3</artifactId> <version>1.0</version> <name>HelloSpringBoot3</name> <description>Demo project for Spring Boot3</description> <properties> <java.version>17</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> <dependencyManagement> <dependencies> <dependency> <groupId>org.yaml</groupId> <artifactId>snakeyaml</artifactId> <version>2.0</version> </dependency> </dependencies> </dependencyManagement> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> </plugins> </build> </project> 启动器：Application package com.example; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; @SpringBootApplication public class HelloSpringBoot3Application { public static void main(String[] args) { SpringApplication.run(HelloSpringBoot3Application.class, args); } } 配置文件：yml

使用的默认配置，未添加任何内容。

控制器：Controller package com.example.web.controller; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController; @RestController @RequestMapping("test") public class TestController { @GetMapping("hello") public String hello() { return "Hello SpringBoot3"; } } 接口调用示例