able to inject us with the DAO layer we need. public static void Main (string[] args) throws Exception { Classpathxmlapplicationcontext context = new Classpathxmlap Plicationcontext (); Student stu = new Student (); Studentservice service = (studentservice) context.getbean ("Stuservice"); Service.add (stu); } Executes the code. Console output:Bean Idis Studao, Clazz is COM.BZU.DAO.IMP.STUDENTDAOIMPBean Idis Stuservice, Clazz is COM.BZU.SERVICE.IMP.STUDENTSERVICEIMPSettermethod name = Sets
, different movie data sources require only one class to implement Imoviefinder, and will not have any effect on mpgmovielister.
Here, the IOC has actually been completed, and control initially depends on how the Moviefinder is instantiated in Mpgmovielister, and now it has surrendered control to the outside to provide concrete instance objects.
Here the moviefinderfactory is already a crude IOC
I. IOC container configuration 1. Some concepts(1)IOC container :Definition: A container that has dependencies between managing objects and managing objects.Role: The application does not need to create its own object, and the object is created and assembled by the
IOC dependency reversal: is the dependency between objects that were originally managed by the application and is now given to container management. The good benefit of the transfer of control is to reduce the degree of dependence between the business objects~ How to manage ObjectsThis requires a configuration file, Spring IOC by configuring the configuration ele
The concept of the IOC container, before learning ssh, has been exposed. But then it was just the idea that it was hard to understand. In fact, it is not difficult to understand, but I did not stop to make a good summary of it combed.Introduction to the IOC(inversion of Control) :Inversion of control "is not a technology, but a thought, an initiative to provide s
The main interface relationship is involved, and the specific IOC container is implemented under this interface system , such as defaultlistablebeanfactory, The implementation of this basic IOC container is to implement the configurablebeanfactory, thus becoming a simple IOC
The two IOC vessels of the 1,spring beanfactory
IOC container of the underlying type;
Deferred initialization policy (when container initialization is complete, the Bean object is not created and initialized only when the initialization request is received);
Because of delayed initialization, the boot
The concept of the IOC container, before learning ssh, has been exposed. But at that time it was just a concept that was very difficult to understand. In fact, it is not difficult to understand, but I did not stop to properly summarize it.IOC(Inversion of Control) Brief Introduction:Inversion of control "is not a technology. But a thought. An initiative to provide the services of the idea. The so-called
Looking at spring's source code recently, the implementation part of the IOC container that relies on XML configuration files is harder to read. The main reason is that the IOC implementation mechanism is not very well understood, so the initiation of the principle of a simple IOC
ObjectiveThe first contact AUTOFAC because CMS system--orchard, and later in an open source crawler system--ncrawler also encountered, with in-depth understanding, I increasingly feel that the IOC container is an indispensable tool in web development. So what is the IOC container for? What are the benefits of using it?
[Spring practice series] (6) configure the Bean of the Spring IOC container1. IntroductionSpring provides a powerful IOC container to manage the beans that make up applications. To use the container service, you must configure the Bean running in the Spring IOC
Spring IOC Overview IOC full name inversion of control, translated as controlled inversion, refers to the way in which objects in a program are acquired in reverse, created from the original new method, and transformed into a third-party framework created, injected (DI), which reduces the coupling between the objects.The spring container is an implementation of
Spring IOC ContainerA Java application is composed of many classes that work together and interact to provide the performance behavior of the application. Classes that provide certain behavior by other class combinations are called dependencies of other classes (dependencies). With the combination of patterns in software engineering (often the anti-patterns of inheritance patterns), we often use certain classes to combine other classes, whether they
IOC overviewThe IOC is the kernel of the spring container, and functions such as AOP, declarative transactions, and so on, are dependent on this functionality, and it involves the consideration of code decoupling, design patterns, code optimization, and so on, and we will understand the IOC in depth in three ways:Preli
First step: Import the relevant jar package (this example imports the spring3.2.4 version, the spring2.5 version only needs to import the Spring core package)Step Two: Configure the Applicationcontext.xml configuration file under the project SRCApplicationcontext.xml file1 XML version= "1.0" encoding= "UTF-8"?>2 Beansxmlns= "Http://www.springframework.org/schema/beans"3 Xmlns:xsi= "Http://www.w3.org/2001/XMLSchema-instance"4 XMLNS:AOP= "HTTP://WWW.SPRINGFRAMEWORK.ORG/SCHEMA/AOP"5 Xmlns:tx= "Http
The spring container is the core of the spring framework. The spring container is responsible for the creation, assembly, and lifecycle management of objects. Spring Container UseDependency injection to manage the components that make up your application. These objects that spring container manages are called beans.The
Overview
IOC (inversion of control) "controlled inversion", but the more popular term is "dependency injection" (di-dependency injection).
What is "inversion of control"? The fact is that control (the right to create a dependency between objects and objects) is given to the spring container. We used to use new Xxximpl () when we were writing code that needed an object, and with the spring
Interface design diagram for IOC containerBelow to do some brief analysis of the interface relationship, you can understand this interface design according to the following content.
From the interfacebeanfactoryTohierarchicalbeanfactory, and then toconfigurablebeanfactory, is athe main beanfactory design Route。 In this interface design route,Beanfactory InterfaceDefines thespecification of the basic IOC
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