使用IDEA创建SpringBoot项目的方法步骤
1.打开IDEA,创建新项目,选择Spring Initializr
2.输入Artifact
3.勾选Web
4.点击finish完成
5.进入项目,可以将以下内容删除
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> <!--起步依赖--> <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> <!--开发web项目相关依赖--> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <!--springboot单元测试--> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> </dependencies> <!--maven构建--> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> </plugins> </build> </project>
6.创建一个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.程序自动生成的SpringbootdemoApplication,会有一个@SpringBootApplication的注解,这个注解用来标明这个类是程序的入口
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开启了Spring的组件扫描和springboot的自动配置功能,相当于将以下三个注解组合在了一起
(1)@Configuration:表名该类使用基于Java的配置,将此类作为配置类
(2)@ComponentScan:启用注解扫描
(3)@EnableAutoConfiguration:开启springboot的自动配置功能
8.运行SpringbootdemoApplication类
测试:
在地址栏中输入http://localhost:8080/hello
9.使用启动jar包的方式启动
(1)首先进入项目所在目录,如果是mac系统在项目上右键,选择Reveal in Finder,Windows系统在项目上右键选择Show in Explorer,即可打开项目所在目录
(2)打开终端,进入项目所在目录
cd /Users/shanml/IdeaProjects/SpringbootDemo
输入mvn install,构建项目
(3)构建成功后,在项目target文件夹下会多出一个jar包
(4)使用java -jar springbootdemo-0.0.1-SNAPSHOT.jar
启动jar包即可
参考:
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