1.Spring Boot创建第一个HelloWorld程序

红太狼 2022-05-23 05:05 324阅读 0赞

**菜单**

**[\-->SpringBoot企业级开发精讲系列教程][--_SpringBoot]**

**准备**

**1.准备开发环境，java，idea**

**开始**

**1.打开IDEA，创建Maven项目**

**2.打开pom.xml文件，修改配置如下:**

<?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.fcibook.test</groupId>
        <artifactId>SpringBootTest</artifactId>
        <version>1.0</version>
    
        <parent>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-parent</artifactId>
            <version>2.0.1.RELEASE</version>
            <relativePath/>
        </parent>
    
        <dependencies>
            
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web</artifactId>
            </dependency>
        </dependencies>
    </project>

这里groupId，artifactId，version可以根据情况自行修改

**3.创建一个Application类**

@SpringBootApplication
    public class Application extends SpringBootServletInitializer implements CommandLineRunner {
    
        @Override
        protected SpringApplicationBuilder configure(SpringApplicationBuilder builder) {
            //return super.configure(builder);
            return builder.sources(Application.class);
        }
        public static void main(String[] args) {
            SpringApplication.run(Application.class, args);
        }
        @Override
        public void run(String... strings) throws Exception {
            System.out.println("服务启动完成!");
        }
    }

4.在resources目录下创建application.properties配置文件

server.port=8080

这里设置SpringBoot访问端口号

**5.最后目录结构如下**

![70][]

**6.运行**

在Application类上鼠标右击，点击Run运行即可

![70 1][]

**最后可以看见控制台输出信息如下**

![70 2][]

[--_SpringBoot]: https://blog.csdn.net/cc_want/article/details/80567149
[70]: /images/20220523/737eb2dcb0d347f894cd0f6d35e8743f.png
[70 1]: /images/20220523/4b0ba5f5cf254c4fbad7c13044b0ed2c.png
[70 2]: /images/20220523/1521753106a5429da54a8fc2e4e918d5.png