Overview
What is SpringFramework?The Spring Framework (Spring) is a free and open-source application framework that provides infrastructure support for Java developers. Spring, one of the most popular Java Enterprise Edition (Java EE) frameworks, assists developers in creating high-performance applications using simple Java objects (POJOs).
Why to use Spring?
Java programmes are complex, with numerous heavyweight components. The term "heavyweight" refers to components that rely on the underlying operating system (OS) for their appearance and properties.Spring is regarded as a safe, low-cost, and adaptable framework. Because Spring is lightweight (efficient at utilising system resources) and has a large amount of support, it improves coding efficiency and reduces overall application development time.Spring automates tedious configuration tasks, allowing developers to focus on writing business logic. Spring manages the infrastructure, allowing developers to concentrate on the application.
How Spring works ?
A web application (layered architecture) typically consists of three layers:
- Presentation/view layer (UI) - This is the outermost layer which handles the presentation of content and interaction with the user.
- Business logic layer - The central layer that deals with the logic of a program.
- Data access layer - The deep layer that deals with data retrieval from sources.
Each layer is required for an application to function. In other words, the presentation layer communicates with the business logic layer, which communicates with the data access layer. Each layer requires dependency in order to function. A typical application contains thousands of classes and a large number of dependencies.
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