通过 idea、maven 构建spring 项目

女爷i 2023-10-07 12:29 10阅读 0赞

很多小伙伴在开发过程中、都是在原有的项目上做功能添加或修改，很少有直接创建新的项目体验，这篇文章分享一下如何创建spring项目同时把spring 相关jar包换成编译后的spring源码，方便在学习源码过程中加注释。这是本篇的两个重点！

1、首先通过idea 点击file 点击open 打开新创建的文件目录，如图：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L25hbmRhbzE1OA_size_16_color_FFFFFF_t_70][]

打开后显示

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L25hbmRhbzE1OA_size_16_color_FFFFFF_t_70 1][]

2、开始创建spring 项目工程，右键目录名点击Module 选择maven 和 webapp

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L25hbmRhbzE1OA_size_16_color_FFFFFF_t_70 2][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L25hbmRhbzE1OA_size_16_color_FFFFFF_t_70 3][]

3、然后进入，填好后点击 next

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L25hbmRhbzE1OA_size_16_color_FFFFFF_t_70 4][]

4、进入此页面后 配置常用的maven参数 ，之后点击next 又进入新页面，

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L25hbmRhbzE1OA_size_16_color_FFFFFF_t_70 5][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L25hbmRhbzE1OA_size_16_color_FFFFFF_t_70 6][]

5、点击finish 后进入项目页面，下载一会maven 显示如下页面：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L25hbmRhbzE1OA_size_16_color_FFFFFF_t_70 7][]

6、现在我们加入一个jar 包，就构成spring项目了，

<dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-context</artifactId>
      <version>5.1.3.RELEASE</version>
    </dependency>

去掉junit配置中的 <scope>test</scope>

7、然后在改项目创建两个类进行测试

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L25hbmRhbzE1OA_size_16_color_FFFFFF_t_70 8][]

package com.nandao.bean;
    
    import org.springframework.stereotype.Component;
    
    @Component
    public class Student {
        private String name="nadao" ;
    
        public String getName() {
            return name;
        }
    
    }

package com.nandao.bean;
    
    import org.junit.Test;
    import org.springframework.context.annotation.AnnotationConfigApplicationContext;
    
    public class StringTest {
    
        @Test
        public void test1(){
            AnnotationConfigApplicationContext applicationContext = new AnnotationConfigApplicationContext("com.nandao");
            Student student = (Student)applicationContext.getBean("student");
            System.out.println(student.getName());
    
        }
    }

8、点击run 运行结果如下

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L25hbmRhbzE1OA_size_16_color_FFFFFF_t_70 9][]

到此spring项目成功搭建。如果满足小伙伴的需要，看到这里可以暂停了。

9、下面进入第二环节，点击 AnnotationConfigApplicationContext 进入源码，发现只能查看 不能编辑。而我们要做的是进入源码后可以编辑。

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L25hbmRhbzE1OA_size_16_color_FFFFFF_t_70 10][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L25hbmRhbzE1OA_size_16_color_FFFFFF_t_70 11][]

10、此处把spring相关jar包换成spring编译后的源码（详见第一节：[idea 导入 spring 源码\_nandao158的博客-CSDN博客\_idea怎么导入spring][idea _ spring _nandao158_-CSDN_idea_spring]），然后找到spring 核心jar

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L25hbmRhbzE1OA_size_16_color_FFFFFF_t_70 12][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L25hbmRhbzE1OA_size_16_color_FFFFFF_t_70 13][]

10、点击 + 找到spring编译后的源码，选中后classes出现两个jar 删除原来的,保留编译后的

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L25hbmRhbzE1OA_size_16_color_FFFFFF_t_70 14][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L25hbmRhbzE1OA_size_16_color_FFFFFF_t_70 15][]

然后 添加编译后的sources

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L25hbmRhbzE1OA_size_16_color_FFFFFF_t_70 16][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L25hbmRhbzE1OA_size_16_color_FFFFFF_t_70 17][]

点击ok 显示，删除原来的sources,点击ok

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L25hbmRhbzE1OA_size_16_color_FFFFFF_t_70 18][]

11、这样局可以在源码中加注释或者修改源码了 如图：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L25hbmRhbzE1OA_size_16_color_FFFFFF_t_70 19][]

刚刚演示只是一个包，另外可能也需要引入spring-beans 、spring-aop等等，方式都一样

到此，今天的内容分享完毕，小伙伴有不懂的地方可以留言！下一篇，我们将逐步学习spring源码！！！

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[idea _ spring _nandao158_-CSDN_idea_spring]: https://blog.csdn.net/nandao158/article/details/105454788
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