@RequestParam

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@RequestParam is an annotation in Spring Boot that lets you capture values from the URL of a web request. When a user enters specific information into the URL, @RequestParam extracts that information and passes it to your controller method so you can use it in your application.

Example

Imagine you have a URL like:           

Here, name=Adib is called a "query parameter." With @RequestParam, you can tell Spring Boot to look for name in the URL and use it in your code.

How It Works:

You add @RequestParam to a parameter in your method:

Key Points:

  • @RequestParam lets your application take values directly from the URL.
  • It makes your API interactive by allowing you to receive user input directly.

In short, @RequestParam is a simple tool for getting information from the URL so you can use it in your application.


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