SpringBoot入门

创建springboot工程方式一手动设置pom.xml

pom.xml文件配置

<?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>2.2.1.RELEASE</version>
    </parent>

    <groupId>org.example</groupId>
    <artifactId>springbootstart</artifactId>
    <version>1.0-SNAPSHOT</version>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>13</java.version>
        <maven.compiler.source>13</maven.compiler.source>
        <maven.compiler.target>13</maven.compiler.target>
        <encoding>UTF-8</encoding>
    </properties>

    <dependencies>
<!--        web功能-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
            <version>2.2.1.RELEASE</version>
        </dependency>

<!--        热部署-->
<!--        （1）File-Settings-Compiler-Build Project automatically-->
<!--        （2）ctrl + shift + alt + /(windows) shift + option + command(mac)-->
<!--选择Registry,勾上 Compiler autoMake allow when app running&ndash;&gt;-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
        </dependency>
    </dependencies>

</project>

代码实现

引导类

@SpringBootApplication
public class SpringBootApp {

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

}

快速创建接口

@Controller
public class QuickController {

    @RequestMapping("/quickstart")
    @ResponseBody
    public String quick(){
        return "hehehheheheh";
    }

}

热部署

<!--        热部署-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
        </dependency>

创建springboot工程方式二使用向导创建springboot工程

Spring Initializr->........