Spring源码阅读学习

一直觉得spring很强大，也是目前最流行的框架，虽然现在有了springboot，但是springboot也是建立在原先的spring基础上的，所以个人觉得阅读spring的源码很有必要，以后跳槽什么的，说自己看过spring源码，甚至能手写一个spring框架，就觉得很牛不是嘛？

于是下决心花点时间来学习spring的源码。

Spring 的核心springcode里包含了四个模块，core，bean，context，apo和expression语言表达式支持包。

就先从配置方式入手，一步步调代码来学吧。先写一个hello world然后一步步学习。

首先是创建一个maven项目SpringCode

Spring源码阅读学习

2.pom文件引入spring的jar包

<project xmlns="http://maven.apache.org/POM/4.0.0"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
	<modelVersion>4.0.0</modelVersion>

	<groupId>com.weiguozhui</groupId>
	<artifactId>SpringCode</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<packaging>jar</packaging>

	<name>SpringCode</name>
	<url>http://maven.apache.org</url>

	<properties>
		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
	</properties>

	<dependencies>
		<dependency>
			<groupId>junit</groupId>
			<artifactId>junit</artifactId>
			<version>3.8.1</version>
			<scope>test</scope>
		</dependency>
		<!-- https://mvnrepository.com/artifact/org.springframework/spring-core -->
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-core</artifactId>
			<version>4.0.2.RELEASE</version>
		</dependency>

		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-beans</artifactId>
			<version>4.0.2.RELEASE</version>
		</dependency>
		<!-- https://mvnrepository.com/artifact/org.springframework/spring-context -->
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-context</artifactId>
			<version>4.0.2.RELEASE</version>
		</dependency>
		<!-- https://mvnrepository.com/artifact/org.springframework/spring-aop -->
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-aop</artifactId>
			<version>4.0.2.RELEASE</version>
		</dependency>
		<!-- https://mvnrepository.com/artifact/org.springframework/spring-expression -->
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-expression</artifactId>
			<version>4.0.2.RELEASE</version>
		</dependency>

	</dependencies>
</project>

3.编写bean类

package com.weiguozhui.SpringCode;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class TestMain {

	public static void main(String[] args) {
		//加载配置文件
		ApplicationContext context=new ClassPathXmlApplicationContext("/application-context.xml");
		// 读取配置文件中配置的bean
		Hello hello=(Hello) context.getBean("hello");
		System.out.println(hello.getName()+hello.getAge());
	}

5.运行输出结果

Spring源码阅读学习

搭建完成，这里不多啰嗦搭建的步骤环节。仅为记录自己的进度，有缘看到可共勉

Spring源码阅读学习

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