IDEA创建springboot输出helloworld

淡淡的烟草味﹌ 2023-07-01 13:56 37阅读 0赞

### springboot输出helloworld ###

*   *  打开IDEA，新建项目
     *  选择Spring Initializr-->Next
     *  选择Web-->SpringWeb --> Next
     *  Project Name自定义 --> Finish
     *  目录如下
     *  DemoApplication是启动类，在和启动类同一个包下新建JAVA类——hello类
     *  回到启动类DemoApplication 运行，打开浏览器 输入localhost:8080/hello

## 打开IDEA，新建项目 ##

![在这里插入图片描述][20200122163252541.png]

## 选择Spring Initializr–>Next ##

（项目信息设置可以默认，也可以Next）  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDYyNDQxMA_size_16_color_FFFFFF_t_70]

## 选择Web–>SpringWeb --> Next ##

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDYyNDQxMA_size_16_color_FFFFFF_t_70 1]

## Project Name自定义 --> Finish ##

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDYyNDQxMA_size_16_color_FFFFFF_t_70 2]

## 目录如下 ##

（主要文件一致即可，存在其他不一致不影响）  
![在这里插入图片描述][20200122165447475.png]

## DemoApplication是启动类，在和启动类同一个包下新建JAVA类——hello类 ##

代码如下：

//DemoApplication类
    package com.example.demo;
    
    import org.springframework.boot.SpringApplication;
    import org.springframework.boot.autoconfigure.SpringBootApplication;
    
    @SpringBootApplication
    public class DemoApplication {
    
    	public static void main(String[] args) {
    		SpringApplication.run(DemoApplication.class, args);
    	}
    
    }

//hello类
    package com.example.demo;
    
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RestController;
    
    @RestController
    public class hello { 
        @RequestMapping("/hello")
        public String print(){ 
            return "hello,SpringBoot";
        }
    }

## 回到启动类DemoApplication 运行，打开浏览器 输入localhost:8080/hello ##

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDYyNDQxMA_size_16_color_FFFFFF_t_70 3]  
![在这里插入图片描述][20200122170019878.png]

[20200122163252541.png]: https://img-blog.csdnimg.cn/20200122163252541.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDYyNDQxMA_size_16_color_FFFFFF_t_70]: https://img-blog.csdnimg.cn/20200122163331395.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDYyNDQxMA==,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDYyNDQxMA_size_16_color_FFFFFF_t_70 1]: https://img-blog.csdnimg.cn/20200122163952830.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDYyNDQxMA==,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDYyNDQxMA_size_16_color_FFFFFF_t_70 2]: https://img-blog.csdnimg.cn/20200122164026413.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDYyNDQxMA==,size_16,color_FFFFFF,t_70
[20200122165447475.png]: https://img-blog.csdnimg.cn/20200122165447475.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDYyNDQxMA_size_16_color_FFFFFF_t_70 3]: https://img-blog.csdnimg.cn/20200122165957872.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDYyNDQxMA==,size_16,color_FFFFFF,t_70
[20200122170019878.png]: https://img-blog.csdnimg.cn/20200122170019878.png