1. 创建一个Spring Initializer项目
1.1 New——》Spring Initializer
1.2 ①删除目录中的一些不需要的文件(下方蓝色部分);(pom文件中已有如下内容、GirlApplication.class、application.properties(空)、GirlApplicationTests.class文件内容如下);
<groupId>com.mdd</groupId>
<artifactId>girl</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>girl</name>
<description>Demo project for Spring Boot</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.6.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>
<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>
</plugin>
</plugins>
</build>
1.3 ①创建一个新的类HelloController(添加 @RestController、@RequestMapping(value,method)),运行可在页面输出return返回内容;②cmd窗口启动方式::
2. 属性配置