idea我的第一个SpringBoot项目

ゞ浴缸里的玫瑰 2023-02-16 00:44 25阅读 0赞

公司最近的项目采用springboot框架开发，我也了解一下。先创建一个HelloWord开始，熟悉一下。

本次采用的配置：

jdk1.9

Maven3.6.3

idea2020.1

直接上图，打开idea，新建项目，选择Spring initializr。

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI5NzIwNjU3_size_16_color_FFFFFF_t_70][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI5NzIwNjU3_size_16_color_FFFFFF_t_70 1][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI5NzIwNjU3_size_16_color_FFFFFF_t_70 2][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI5NzIwNjU3_size_16_color_FFFFFF_t_70 3][]

Finish。

新建一个窗口

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI5NzIwNjU3_size_16_color_FFFFFF_t_70 4][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI5NzIwNjU3_size_16_color_FFFFFF_t_70 5][]

展开

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI5NzIwNjU3_size_16_color_FFFFFF_t_70 6][]

目录结构解释

- src
        -main
    	-java
    	    -package
    		-SpringbootApplication -------------- 程序的入口
            -resouces ----------------------------------- resouces 资源文件 
    	    - statics ------------------------------- 静态资源
                - templates ----------------------------- 模板资源
    	    - application.properties ---------------- 配置文件
        -test
    - pom ----------------------------------------------- pom文件为基本的依赖管理文件

添加以下的代码

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI5NzIwNjU3_size_16_color_FFFFFF_t_70 7][]完整代码

package com.helloworld.demo;
    
    import org.springframework.boot.SpringApplication;
    import org.springframework.boot.autoconfigure.SpringBootApplication;
    import org.springframework.web.bind.annotation.GetMapping;
    import org.springframework.web.bind.annotation.RestController;
    
    @RestController
    @SpringBootApplication
    public class HelloWorldApplication {
    
        public static void main(String[] args) {
            SpringApplication.run(HelloWorldApplication.class, args);
        }
        @GetMapping("/HelloWorld")
        public String HelloWorld(){
            return "我的第一个Springboot项目";
        }
    }

右键，如发现没有run选项，Mark一下

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI5NzIwNjU3_size_16_color_FFFFFF_t_70 8][]

右键，run

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI5NzIwNjU3_size_16_color_FFFFFF_t_70 9][]

启动完成

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI5NzIwNjU3_size_16_color_FFFFFF_t_70 10][]

访问：[http://localhost:8080/HelloWorld][http_localhost_8080_HelloWorld]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI5NzIwNjU3_size_16_color_FFFFFF_t_70 11][]

第一个项目大功告成。

默认是8080端口，修改application.properties文件（默认是空的）

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI5NzIwNjU3_size_16_color_FFFFFF_t_70 12][]

我们把端口改为9090

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI5NzIwNjU3_size_16_color_FFFFFF_t_70 13][]

保存，重新启动

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI5NzIwNjU3_size_16_color_FFFFFF_t_70 14][]

访问：[http://localhost:9090/HelloWorld][http_localhost_9090_HelloWorld]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI5NzIwNjU3_size_16_color_FFFFFF_t_70 15][]

成功。

以前没用过Springboot，这个真的是大大简化开发的过程啊，快速搭建应用

2020年6月6日星期6。

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[http_localhost_8080_HelloWorld]: http://localhost:8080/HelloWorld
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[http_localhost_9090_HelloWorld]: http://localhost:9090/HelloWorld
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