The Spring Framework is a powerful, open-source framework for building enterprise-level Java applications. It provides comprehensive infrastructure support for developing Java applications by addressing common concerns like dependency management, transaction handling, and integration with various technologies.
Spring is widely used because it simplifies Java application development by providing a modular and extensible architecture. It promotes best practices such as loose coupling, testability, and separation of concerns.
Spring is designed to provide a lightweight and modular approach to Java application development. It enables developers to build applications that are easy to maintain, scalable, and testable.
Spring applications are based on Plain Old Java Objects (POJOs), meaning they do not require extensive configuration or adherence to specific patterns.
Some of the key features of Spring include:
Inversion of Control (IoC) is a design principle that shifts the responsibility of object creation and dependency management from the programmer to the Spring container. Instead of manually creating objects and managing dependencies, Spring does it automatically.
This makes the application more flexible, scalable, and easier to test. IoC is implemented through Dependency Injection (DI).
Dependency Injection (DI) is a technique used to achieve IoC by injecting dependencies into an object rather than allowing the object to create its own dependencies.