What are filters in Servlets, and why are they useful?
What are filters in Servlets, and why are they useful?
23415-Nov-2023
Updated on 16-Nov-2023
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What are filters in Servlets, and why are they useful?
Aryan Kumar
16-Nov-2023In the world of servlets, filters are like gatekeepers or inspectors that intercept and manipulate requests and responses as they pass through. They provide a way to perform preprocessing and post-processing tasks on web application requests and responses.
Here's a simple breakdown:
Inspecting and Modifying Requests:
Common Cross-Cutting Concerns:
Reusable Components:
Separation of Concerns:
Chaining Filters:
In summary, filters in servlets act as intermediaries, allowing you to preprocess and post-process requests and responses. They enhance code reusability, handle cross-cutting concerns, and contribute to a modular and maintainable web application architecture.