springBoot官方入门篇一 引入依赖并运行

springBoot官方入门篇一 引入依赖并运行

版本 Spring Boot 2.1.2.RELEAS
jdk 1.8
maven 3.5

1.pom.xml

	4.0.0
	
		org.springframework.boot
		spring-boot-starter-parent
		2.1.2.RELEASE
		 
	
	xue.xiang.yi
	demo
	0.0.1-SNAPSHOT
	demo
	Demo project for Spring Boot

	
		1.8
	

	
		
			org.springframework.boot
			spring-boot-starter-jdbc
		
		
        
		
			org.springframework.boot
			spring-boot-starter-thymeleaf
		
		
			org.springframework.boot
			spring-boot-starter-web
		
		
		
			org.springframework.boot
			spring-boot-devtools
			runtime
		
        
		
			mysql
			mysql-connector-java
			runtime
		
		
			org.springframework.boot
			spring-boot-starter-test
			test
		
		
			org.springframework.security
			spring-security-test
			test
		
    

	
		
			
				org.springframework.boot
				spring-boot-maven-plugin
			
		
	

2.项目目录

3.主启动类

SpringBoot内置了tomcat 直接运行启动类,即可启动项目. 下面我们在主启动类添加一个方法来试试看

4.springMvc的控制层

package xue.xiang.yi.demo;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
/*相当于
@Controller
@ResponseBody
* */
@EnableAutoConfiguration
public class DemoApplication {

	@RequestMapping("/helloWorld")
	public String first() {
		return "helloWorld";
	}

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

}

那么 运行后访问