Eclipse中新建SpringBoot项目并输出HelloWorld

ゝ一世哀愁。 2023-10-18 15:22 66阅读 0赞

## 场景 ##

在Eclipse中安装spring-tool-suite插件，新建SpringBoot项目更方便。

[https://blog.csdn.net/BADAO\_LIUMANG\_QIZHI/article/details/88259363][https_blog.csdn.net_BADAO_LIUMANG_QIZHI_article_details_88259363]

## 实现 ##

安装完插件后，点击FIile-New,这是下面会有SpringBoot选项，选择

Spring Starter Project

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出来Service URL等待一会点击next

![Image 1][]![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk_size_16_color_FFFFFF_t_70 1][]

填入项目名字以及其他配置

![Image 1][]![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk_size_16_color_FFFFFF_t_70 2][]

这里选择strater,这里选择Web

![Image 1][]![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk_size_16_color_FFFFFF_t_70 3][]

点击Finish

![Image 1][]![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk_size_16_color_FFFFFF_t_70 4][]

建成之后的目录

![Image 1][]![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk_size_16_color_FFFFFF_t_70 5][]

切记这里在demo包下新建controller包，即HelloSpringBootApplication.java要在所在子包的上级目录。

![Image 1][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk_size_16_color_FFFFFF_t_70 6][]

在controller包下新建UserController.java

package com.example.demo.controller;
    
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RestController;
    
    /**
     * @author badao
     * @Description:测试
     * @Time:2019年3月6日 下午11:20:19
     */
    @RestController
    public class UserController {
     
     /**
      *
      * @return
      */
     @RequestMapping("hello")
     public String showhello() {
      return "hello world,badao Spring Boot";
     }
    }

这里使用的是@RestController注解，这是一个组合注解

![Image 1][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk_size_16_color_FFFFFF_t_70 7][]

启动项目

在HelloSpringBootApplication.java右击--run as --Java Application

![Image 1][]![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk_size_16_color_FFFFFF_t_70 8][]

查看控制台端口号

![Image 1][]![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk_size_16_color_FFFFFF_t_70 9][]

打开浏览器输入[http://localhost:8080/hello][http_localhost_8080_hello]

![Image 1][]![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk_size_16_color_FFFFFF_t_70 10][]

## 源码下载 ##

[https://download.csdn.net/download/badao\_liumang\_qizhi/11005499][https_download.csdn.net_download_badao_liumang_qizhi_11005499]

[https_blog.csdn.net_BADAO_LIUMANG_QIZHI_article_details_88259363]: https://blog.csdn.net/BADAO_LIUMANG_QIZHI/article/details/88259363
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[http_localhost_8080_hello]: http://localhost:8080/hello
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[https_download.csdn.net_download_badao_liumang_qizhi_11005499]: https://download.csdn.net/download/badao_liumang_qizhi/11005499