SpringBoot3基础：最简项目示例

超、凢脫俗 2023-10-16 11:05 14阅读 0赞

## 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][SpringBoot3_JDK17]

## 项目结构图示 ##

![在这里插入图片描述][a1bba6d985bb4fccbd9f1a044ad77124.png]

## POM ##

<?xml version="1.0" encoding="UTF-8"?>
    <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://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/> 
        </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 ##

![在这里插入图片描述][38ceb1cc5fbf4585aeff339fb3cd3c8b.png]

[SpringBoot3_JDK17]: https://blog.csdn.net/sgx1825192/article/details/133019583
[a1bba6d985bb4fccbd9f1a044ad77124.png]: https://img-blog.csdnimg.cn/a1bba6d985bb4fccbd9f1a044ad77124.png
[38ceb1cc5fbf4585aeff339fb3cd3c8b.png]: https://img-blog.csdnimg.cn/38ceb1cc5fbf4585aeff339fb3cd3c8b.png