使用IDEA創建SpringBoot項目的方法步驟

2024-07-14 08:40:48

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1.打開IDEA,創建新項目，選擇Spring Initializr

IDEA,創建,SpringBoot

2.輸入Artifact

IDEA,創建,SpringBoot

3.勾選Web

IDEA,創建,SpringBoot

4.點擊finish完成

IDEA,創建,SpringBoot

5.進入項目，可以將以下內容刪除

IDEA,創建,SpringBoot

pom.xml文件：

<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd">  <modelVersion>4.0.0</modelVersion>   <groupId>com.example</groupId>  <artifactId>springbootdemo</artifactId>  <version>0.0.1-SNAPSHOT</version>  <packaging>jar</packaging>   <name>springbootdemo</name>  <description>Demo project for Spring Boot</description>   <!--起步依賴-->  <parent>   <groupId>org.springframework.boot</groupId>   <artifactId>spring-boot-starter-parent</artifactId>   <version>1.5.2.RELEASE</version>   <relativePath/> <!-- lookup parent from repository -->  </parent>   <properties>   <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>   <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>   <java.version>1.8</java.version>  </properties>   <dependencies>   <!--開發web項目相關依賴-->   <dependency>    <groupId>org.springframework.boot</groupId>    <artifactId>spring-boot-starter-web</artifactId>   </dependency>   <!--springboot單元測試-->   <dependency>    <groupId>org.springframework.boot</groupId>    <artifactId>spring-boot-starter-test</artifactId>    <scope>test</scope>   </dependency>  </dependencies>   <!--maven構建-->  <build>   <plugins>    <plugin>     <groupId>org.springframework.boot</groupId>     <artifactId>spring-boot-maven-plugin</artifactId>    </plugin>   </plugins>  </build> </project>

6.創建一個HelloController

package com.example; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController; @RestController public class HelloController {  @RequestMapping("/hello")  public String hello() {   return "hello,this is a springboot demo";  } }

7.程序自動生成的SpringbootdemoApplication，會有一個@SpringBootApplication的注解，這個注解用來標明這個類是程序的入口

package com.example;  import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication;  //入口 @SpringBootApplication public class SpringbootdemoApplication {   public static void main(String[] args) {   SpringApplication.run(SpringbootdemoApplication.class, args);  } }

@SpringBootApplication開啟了Spring的組件掃描和springboot的自動配置功能，相當于將以下三個注解組合在了一起

（1）@Configuration：表名該類使用基于Java的配置,將此類作為配置類

（2）@ComponentScan：啟用注解掃描

（3）@EnableAutoConfiguration：開啟springboot的自動配置功能

8.運行SpringbootdemoApplication類

IDEA,創建,SpringBoot