IoC别名DI(Dependency Injection,依赖注入)。Spring将IoC和DI看作等同的概念。 IoC是一种架构模式。 IoC其原理是基于OO设计原则的The Hollywood Principle(好莱坞原则):Don't call us, we'll call you(你不用找我们,我们会找你的),就是由容器来控制业务对象之间的依赖关系,而非传统实现中,由代码直接操控,这也...
* * The container is only responsible for managing the lifecycle of the FactoryBean * instance, not the lifecycle of the objects created by the FactoryBean. Therefore, * a destroy method on an exposed bean object (such as {@link java.io.Closeable#close()} * will not be called automatical...
Thus,BeanFactoryis lightweight as compared toApplicationContext. It's generally recommended to use theApplicationContext,andwe should use BeanFactory only when memory consumption is critical. Resourceres=newClassPathResource("ioc-container-difference-example.xml");BeanFactoryfactory=newXmlBeanFactory(res);/...
下面我们进一步从 Spring IoC 的角度看一下它具体的实现过程。 Spring IoC 当中有若干基本概念需要了解一下: Spring 当中的 IoC Container 被称为Context,代码上体现为ApplicationContext接口。Spring 自带了若干实现,例如ClassPathXmlApplicationContext和FileSystemXmlApplicationContext等。 Spring 的 Container 依赖于Config...
在“使用Spring.Net 1.3.2实现Container(IoC)(一)”已使用Spring.NET实现了一个简单的IoC容器ClassicContainer,故实现支持IoC的ControllerFactory 手到擒来。 MVCQuick的ControllerFactory实现代码 usingSystem; usingSystem.Collections.Generic; usingSystem.Linq; ...
Spring IoC Container借助于Java POJO classes和configuration metadata来生成可执行程序。 Spring提供2种container,BeanFactory container (org.springframework.beans.factory.BeanFactory)和ApplicationContext container(org.springframework.context.ApplicationContext)。前者还继续存在于spring,是因为后向兼容性,是最简单的contain...
1. Spring IoC 容器简介与 Beans It is a process whereby objects define their dependencies (that is, the other objects they work with) only through constructor arguments, arguments to a factory method, or properties that are set on the object instance after it is constructed or returned from a...
* Core Container:核心容器,这个模块是Spring最核心的模块,其他的都需要依赖该模块 (2)AOP层 * AOP:面向切面编程,它依赖核心层容器,目的是==在不改变原有代码的前提下对其进行功能增强== * Aspects:AOP是思想,Aspects是对AOP思想的具体实现 (3)数据层 * Data Access:数据访问,Spring全家桶中有对数据访问的具体...
Spring核心容器(Core Container) 容器是Spring框架最核心的部分,它管理着Spring应用中bean的创建、配置和管理。在该模块中,包括了Spring bean工厂,它为Spring提供了DI的功能。基于bean工厂,我们还会发现有多种Spring应用上下文的实现。所有的Spring模块都构建于核心容器之上。
Dependency injection is a specific implementation of IoC where dependencies are injected into the component by the IoC container (Spring in this case).