SpringBoot第一个程序:helloworld

需求:浏览器发出HTTP请求,服务器接收请求并处理,响应HELLO WORLD字符串

步骤:1、导入pom依赖:

<parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.5.9.RELEASE</version>
    </parent>


    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
    </dependencies>

2、写一个主程序:

package com.aynu;

import org.springframework.boot.SpringApplication;

/**
 * @SpringBootApplication标签来标注一个主程序类,说明这是一个springboot应用
 */
@org.springframework.boot.autoconfigure.SpringBootApplication
public class SpringBootApplication {
    public static void main(String[] args){
//        springboot应用启动
        SpringApplication.run(SpringBootApplication.class,args);
    }
}

3、编写业务逻辑:

package com.aynu.controller;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

/**
 * springboot第一个程序:helloworld
 */
@Controller
public class HelloWorldController {

    @RequestMapping("/hello")
    @ResponseBody
    public String helloWorld(){
        return "HELLOWOLD";
    }
}

4、运行:

如何运行?直接run as主程序即可。

然后在浏览器输入 localhost:8080/hello即可看到效果

猜你喜欢

转载自blog.csdn.net/weixin_41113108/article/details/81774978