Spring源码阅读之在spring源码中创建一个gradle测试模块

桃扇骨 2021-09-29 03:28 695阅读 0赞

一、问题说明

之前写了一篇博客[Spring源码阅读之编译带源码的jar包][Spring_jar]，这样操作的目的是想在新建的项目里能调试自己写过注释的源码。

后来我发现其实有个更为简便的方法，直接在本地已经导入的spring-framework源码中创建一个gradle模块，然后引入你想测的模块就可以了

二、解决方法

举个例子：

我想断点调试看下spring是如何创建bean的（getBean方法），用如下一段代码

@Test
    public void test() {
    	ApplicationContext ac = new ClassPathXmlApplicationContext("com/kittycoder/simpledemo/spring-student.xml");
    	Teacher teacher = (Teacher) ac.getBean("teacher");
    	System.out.println(teacher);
    }

具体步骤如下：（如何搭建spring源码阅读环境可以参看 [https://blog.csdn.net/u010999809/article/details/90444714][https_blog.csdn.net_u010999809_article_details_90444714]）

1. 右键新建一个module

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTA5OTk4MDk_size_16_color_FFFFFF_t_70][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTA5OTk4MDk_size_16_color_FFFFFF_t_70 1][]

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![20190630103714465.png][]

2.修改配置

（1）spring-framework根目录下的settings.gradle中应该会多一行（idea替你加的），里面已经加进去了这个就不用操作了

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTA5OTk4MDk_size_16_color_FFFFFF_t_70 3][]

（2）刚才创建的spring-lsc-test模块，gradle配置文件用的是默认名字build.gradle，你也可以更改成spring里定义好的名字（就叫spring-lest-test.gradle）

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTA5OTk4MDk_size_16_color_FFFFFF_t_70 4][]

（3） idea里新建好的gradle配置文件里会夹带一些用不到的配置，参考下spring其他模块的gradle配置，我直接把spring-lsc-test.gradle改成下面的样子：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTA5OTk4MDk_size_16_color_FFFFFF_t_70 5][]

经过上面两步，配置就搞定了

三、开始调试

这里简单贴下目录结构以及相关代码，便于各位重现。

这个结构也是spring源码里各模块在编写测试的时候一种分模块方式，我这里稍微借鉴了一下

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTA5OTk4MDk_size_16_color_FFFFFF_t_70 6][]

Student.java

package com.kittycoder.simpledemo.po;
    
    /**
     * Created by shucheng on 2019-6-29 下午 20:47
     */
    public class Student {
    
    	private Integer id;
    	private String name;
    
    	public Integer getId() {
    		return id;
    	}
    
    	public void setId(Integer id) {
    		this.id = id;
    	}
    
    	public String getName() {
    		return name;
    	}
    
    	public void setName(String name) {
    		this.name = name;
    	}
    }

Teacher.java

package com.kittycoder.simpledemo.po;
    
    /**
     * Created by shucheng on 2019-6-29 下午 21:04
     */
    public class Teacher {
    
    	private Student student;
    
    	public Student getStudent() {
    		return student;
    	}
    
    	public void setStudent(Student student) {
    		this.student = student;
    	}
    }

SimpleDemoTest.java

package com.kittycoder.simpledemo;
    
    import com.kittycoder.simpledemo.po.Teacher;
    import org.junit.Test;
    import org.springframework.context.ApplicationContext;
    import org.springframework.context.support.ClassPathXmlApplicationContext;
    
    /**
     * Created by shucheng on 2019-6-29 下午 20:42
     */
    public class SimpleDemoTest {
    
    	@Test
    	public void test() {
    		ApplicationContext ac = new ClassPathXmlApplicationContext("com/kittycoder/simpledemo/spring-student.xml");
    		Teacher teacher = (Teacher) ac.getBean("teacher");
    		System.out.println(teacher);
    	}
    }

spring-student.xml

<?xml version="1.0" encoding="UTF-8"?>
    <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    	   xsi:schemaLocation="http://www.springframework.org/schema/beans https://www.springframework.org/schema/beans/spring-beans-2.0.xsd">
    
    	<bean id="teacher" class="com.kittycoder.simpledemo.po.Teacher">
    		<property name="student" ref="student"/>
    	</bean>
    
    	<bean id="student" class="com.kittycoder.simpledemo.po.Student"></bean>
    </beans>

参考链接：[https://www.javaroad.cn/questions/343089][https_www.javaroad.cn_questions_343089]

[Spring_jar]: https://blog.csdn.net/u010999809/article/details/93712003
[https_blog.csdn.net_u010999809_article_details_90444714]: https://blog.csdn.net/u010999809/article/details/90444714
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[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTA5OTk4MDk_size_16_color_FFFFFF_t_70 1]: /images/20210923/0d17c1c9f62d443c864ee6571fff8dc7.png
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[20190630103714465.png]: /images/20210923/e54d697cb90e4e3c87bf0f24f4d7e1e3.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTA5OTk4MDk_size_16_color_FFFFFF_t_70 3]: /images/20210923/1c9fb56644204b79a8735ed9dcdaa3b2.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTA5OTk4MDk_size_16_color_FFFFFF_t_70 4]: /images/20210923/a2e70d9c4a054557bc371473517e59ec.png
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[https_www.javaroad.cn_questions_343089]: https://www.javaroad.cn/questions/343089