Spring Boot Hello World

项目结构

源码

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class A01SpringBootHelloWorldApplication {

    public static void main(String[] args) {
        SpringApplication.run(A01SpringBootHelloWorldApplication.class, args);
    }

}

import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class HelloWorld {
    @RequestMapping("/helloworld")
    public String helloWorld() {
        return "Hello World!";
    }
}

server.port=9000

项目运行结果

打开浏览器，在地址栏输入：http://localhost:9000/helloworld