Shulou(Shulou.com)06/03 Report--

Here we go.

1. First create a maven project and introduce springboot dependencies

Org.springframework.boot spring-boot-starter-web org.springframework.boot spring-boot-devtools 2.0.5.RELEASE

2. Write the startup class that starts springboot.

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

3. Write an accessible Controller that can get variables in the application.yml file

Application.yml content

Server: port: 9001spring: profiles: active: linux@Controllerpublic class HelloController {@ Autowired ApplicationContext applicationContext; @ GetMapping (value = "/ hello") @ ResponseBody public String hello () {return applicationContext.getEnvironment () .getProperty ("server.port");}}

4. Enter the address http://localhost:9001/hello in the browser

Page display 9001

... End

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