<!--	創(chuàng)建一個父工程-->
	<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>2.7.3</version>
		<relativePath/> <!-- lookup parent from repository -->
	</parent>
	
	<properties>
		<java.version>1.8</java.version>
	</properties>
<!--	導入依賴-->
	<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>
		</dependency>
	</dependencies>

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
//啟動類
@SpringBootApplication
public class Springboot01Application {
 
	public static void main(String[] args) {
		SpringApplication.run(Springboot01Application.class, args);
	}
}

package com.springboot01.controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
@RestController
@RequestMapping("/springboot")
public class BootController {
 
    @RequestMapping("/hello")
    public String HelloBoot(){
        System.out.println("spring boot  running... ");
        return "hello SpringBoot";
    }
}

     <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
    </dependencies>
<!--直接導入，相當于parent-->
    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-dependencies</artifactId>
                <version>${spring-boot.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class Springboot0102Application {
 
    public static void main(String[] args) {
        SpringApplication.run(Springboot0102Application.class, args);
    }
}