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Geek time: brother pony's learning notes Main implementation strategies of IoC: the interviewer always asks the difference between IoC and DI. Does he really understand it? Main implementation strategies of Ioc Service positioning mode. Java EE components are usually obtained through JNDI technologyDependency injectionContext dependent ...

1. Scope of bean In Spring, set whether to create a bean instance as a single instance or multiple instances. Generally speaking, our configuration file is in xml <bean id="name" class="route"> After this configuration, we can get the bean instance we created through our test class. In Spring. The bean instances we create can be single ...

What is AOP AOP (Aspect Oriented Programming) means: Aspect Oriented Programming, which realizes the unified maintenance of program functions through precompiled mode and runtime dynamic agent. AOP is the continuation of OOP, a hot spot in software development, an important content in Spring framework, and a derivative paradigm of functional p ...

catalogue 1. set injection (key) 2. Scope of Bean   2.1,Singleton 2.2, Prototype 2.4, Session Dependency injection (DI). Dependency: the creation of a Bean object depends on the container. The dependent resources of a Bean object Injection: refers to the resources that the Bean object depends on, which are set and assembled by the c ...

catalogue 1. Analysis and Implementation 2,   IOC essence   1. Analysis and Implementation Let's write a piece of code in our original way First write a UserDao interface public interface UserDao { public void getUser(); } Then write Dao's implementation class public class UserDaoImpl implements UserDao { @Override ...

This paper introduces in detail the complete solution of DI configuration based on XML for Spring IoC. Previous articles The concept of Spring IOC container and IoC assembly based on XML In, we learned two methods of dependency injection. Now let's take a look at some more detailed configurations. This article is based on spring 5.2.8. ...

2.1 introduction The following uses specific examples to introduce the idea of IOC. Firstly, the project follows the MVC development concept, mainly including dao layer, service layer and Test at the same level as main. 2.2 examples 2.2.1 code UserDao interface: package com.yun.dao; public interface UserDao { public void speak(); } ...