Wednesday 24 February 2021 spring20-24 + review spring1-8.
Reviewing is important, and so is taking notes. Some students are reading blogs to learn.
Spring 23 24 There is a problem with these two parts, so let's review spring 9-22 tomorrow. I remember the content of 13 was skipped by me.
Tomorrow's plan:
internal work in the laboratory, drawing + modification,
review spring9-22
spring continues,
review mybatis
today is that javaweb is quite important.
To recap: spring is a framework. is an open source framework. A lightweight open source framework for Java EE programming. Emphasis is on IOC and AOP. Inversion of Control IoC, facing Aop.
Through "the amount of code is very large, the cost of modifying once is very expensive!"
Inversion of control IoC (Inversion of Control) is a design idea, and DI (dependency injection) is a way to implement IoC
by modifying xml . Configuration file content to achieve different operations. Instead of going to the program to modify it. The amount of code is simplified.