suresh What is Dependency Injection in Spring and How Does It Work?
Dependency Injection (DI) in Spring is a design pattern that allows the removal of hard-coded dependencies in an application by injecting them at runtime. In simpler terms, DI is a technique where one object supplies the dependencies of another object. This helps in promoting loosely coupled code and easier maintainability.
In Spring, DI is achieved through the Inversion of Control (IoC) principle, where the control of object creation and lifecycle is transferred to the Spring framework. This is typically done using annotations like @Autowired to inject dependencies into a class.
The key benefit of Dependency Injection in Spring is that it facilitates easier testing, improves modularity, and promotes reusability of components. By decoupling components, changes can be made to one part of the application without affecting other parts.
Overall, Dependency Injection in Spring simplifies the management of dependencies and promotes a more flexible and efficient codebase.
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