Spring Boot入门 —- Hello World

seven_ • 2023年2月22日下午7:29 • 技术随笔 • 阅读 214

-> 从Hello World 开始

1、新建一个Maven项目

2、在pom.xml导入依赖

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.3.RELEASE</version>
    </parent>

    <dependencies>
        <!--Spring boot的核心包-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>
        <!--Spring boot整合web开发的jar-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
    </dependencies>

3、编写一个HelloController

附上代码：

package cn.ok;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

@SpringBootApplication
@Controller
public class HelloController {
    @RequestMapping("/hello")
    @ResponseBody
    public String hello(){
        return "Hello! Boot!!";
    }

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

4、启动（main方法）