项目代码:https://github.com/daydreamer1988/springboot-helloworld

方法一:使用Spring Initializer

New Project 选择构建类型 选择需要的依赖 解析下载依赖 初始目录结构

pom.xml

<?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>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.3.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.minicup</groupId>
    <artifactId>springboot-helloworld</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>springboot-helloworld</name>
    <description>Demo project for Spring Boot</description>

    <properties>
        <java.version>1.8</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>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
           
                // 支持Maven打包
            </plugin>
        </plugins>
    </build>

</project>

Application

@SpringBootApplication
public class SpringbootHelloworldApplication {

    public static void main(String[] args) {
        SpringApplication.run(SpringbootHelloworldApplication.class, args);
    }
}

以上就是所有的配置,运行main函数

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打开浏览器http://localhost:8080

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服务是启动了, 但是还没有接口,接下来创建HelloController.java

@RestController
public class HelloController {

    @GetMapping("/hello/{name}")
    public String hollo(@PathVariable String name){
        return "Hello "+ name;
    }
}

重新运行

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除了运行main函数之外, 还可以通过命令行执行mvn spring-boot:run来启动

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项目打包部署

image.png image.png

在命令行中输入java -jar target/springboot-helloworld-0.0.1-SNAPSHOT.jar

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注意, pom文件中的依赖没有版本号, 这是因为parent的spring-boot-starter-parent中已经定义了

方法二:使用普通Maven创建SpringBoot

image.png image.png 目录结构

pom.xml

image.png

添加以下依赖(https://spring.io/guides/gs/rest-service/)

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.3.RELEASE</version>
    </parent>

    <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>
        <dependency>
            <groupId>com.jayway.jsonpath</groupId>
            <artifactId>json-path</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>
    <properties>
        <java.version>1.8</java.version>
    </properties>


    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

添加Application类

@SpringBootApplication
public class Application {

    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }
}

添加TestController类

@RestController
public class TestController {

    @GetMapping("/hello/{name}")
    public String hello(@PathVariable String name){
        return "Hello " + name;
    }
}

运行main函数,访问8080,完成

方法三:官网下载类似脚手架项目,IDEA直接打开即可

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