[estore基础知识] 之(三)【Spring 体系】
一、Spring 体系
The Spring Framework consists of features organized into about 20 modules. These modules are grouped into Core Container, Data Access/Integration, Web, AOP (Aspect Oriented Programming), Instrumentation, and Test, as shown in the following diagram.
1. https://docs.spring.io/spring/docs/3.0.x/spring-framework-reference/html/overview.html
2. Diff between IOC and Dependency Inject :
https://www.codeproject.com/Articles/592372/Dependency-Injection-DI-vs-Inversion-of-Control-IO
二、Spring Bean Scopes
Spring 的Bean的Scopes 主要包含如下几种:
scope |
Description |
singleton |
一个Bean在一个Spring IOC容器只使用一个对象 |
prototype |
一个Bean会生成任意个数对象 |
request |
一个Bean在每次单独的httpRequest生命周期中都生成一个对象 |
session |
一个Bean在一个http session的生命周期中都生成一个对象 |
Global session |
一个Bean在global http session的生命周期中都生成一个对象 |