Debug IOC

#1.对xml配置形式的IOC初始化过程，进行源码调试

Author: morewindows0

spring-context/src/main/java/com/debug/spring/User.java renamed to spring-context/src/main/java/com/debug/basebean/User.java

@@ -1,16 +1,14 @@
-package com.debug.spring;
+package com.debug.basebean;
 
 /**
  * @author: Shawn Chen
  * @date: 2018/6/6
  * @description:
  */
-//@Component
 public class User
 {
-    //@Value(value = "github")
     private String name;
-   // @Value(value = "male")
+
     private String gender;
 
     public String getName()

spring-context/src/main/java/org/springframework/context/support/AbstractApplicationContext.java

@@ -516,9 +516,11 @@ public Collection<ApplicationListener<?>> getApplicationListeners() {
 	public void refresh() throws BeansException, IllegalStateException {
 		synchronized (this.startupShutdownMonitor) {
 			// Prepare this context for refreshing.
+			System.out.println("#3.设置上下文活动标志active（会先将上下文标志设置为false），还有进行一些环境配置。");
 			prepareRefresh();
 
 			// Tell the subclass to refresh the internal bean factory.
+			System.out.println("#4.核心函数AbstractApplicationContext#obtainFreshBeanFactory，功能解析xml，创建BeanFactory");
 			ConfigurableListableBeanFactory beanFactory = obtainFreshBeanFactory();
 
 			// Prepare the bean factory for use in this context.
@@ -547,6 +549,7 @@ public void refresh() throws BeansException, IllegalStateException {
 				registerListeners();
 
 				// Instantiate all remaining (non-lazy-init) singletons.
+				//该函数中会对bean进行初始化，利用发射技术。
 				finishBeanFactoryInitialization(beanFactory);
 
 				// Last step: publish corresponding event.

spring-context/src/main/java/org/springframework/context/support/ClassPathXmlApplicationContext.java

@@ -139,8 +139,10 @@ public ClassPathXmlApplicationContext(
 			throws BeansException {
 
 		super(parent);
+		System.out.println("#1.配置资源文件:"+configLocations[0]);
 		setConfigLocations(configLocations);
 		if (refresh) {
+			System.out.println("#2.进入核心函数:AbstractApplicationContext#refresh");
 			refresh();
 		}
 	}

spring-context/src/main/resources/com/debug/config/User.xml

@@ -1,15 +1,12 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <beans xmlns="http://www.springframework.org/schema/beans"
        xmlns:p="http://www.springframework.org/schema/p"
-       xmlns:context="http://www.springframework.org/schema/context"
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:schemaLocation="http://www.springframework.org/schema/beans
-       http://www.springframework.org/schema/beans/spring-beans.xsd
-       http://www.springframework.org/schema/context
-       http://www.springframework.org/schema/context/spring-context-4.0.xsd">
+       http://www.springframework.org/schema/beans/spring-beans.xsd">
 
-    <bean id="user" class="com.debug.spring.User"
-          p:name="测试" p:gender="保密"/>
+    <bean id="user" class="com.debug.basebean.User"
+          p:name="IoC" p:gender="保密"/>
 
-   <!-- <context:component-scan base-package="com.debug.spring"/>-->
+    <!--<context:component-scan base-package="com.debug.spring"/>-->
 </beans>

spring-context/src/test/java/com/debug/springtest/SpringDebugTest.java renamed to spring-context/src/test/java/com/debug/springioctest/SpringIOCDebug.java

@@ -1,26 +1,26 @@
-package com.debug.springtest;
+package com.debug.springioctest;
 
 
-import com.debug.spring.User;
+import com.debug.basebean.User;
 import org.junit.Test;
 import org.springframework.context.ApplicationContext;
 import org.springframework.context.support.ClassPathXmlApplicationContext;
 
 /**
  * @author: Shawn Chen
  * @date: 2018/6/6
- * @description:spring源码简单测试
+ * @description:spring IOC调试
  */
-public class SpringDebugTest
+public class SpringIoCDebug
 {
     @Test
-    public void test()
+    public void testIOC()
     {
         ApplicationContext context = new ClassPathXmlApplicationContext("com/debug/config/User.xml");
 
         User user = (User) context.getBean("user");
 
-        System.out.println(user.getClass().getName());
+        System.out.println("class name:"+user.getClass().getName());
 
         System.out.println("name属性:" + user.getName());
         System.out.println("gender属性:" + user.getGender());