Bird
0
0

What does the @RequestParam annotation do in a Spring Boot controller?

easy📝 Conceptual Q11 of 15
Spring Boot - REST Controllers
What does the @RequestParam annotation do in a Spring Boot controller?
AIt maps the URL path to a controller method.
BIt extracts query string parameters from the URL and passes them to the method.
CIt defines the HTTP method type like GET or POST.
DIt handles exceptions thrown by the controller.
Step-by-Step Solution
Solution:
  1. Step 1: Understand the role of @RequestParam

    @RequestParam is used to get values from the URL query string, like ?name=John.
  2. Step 2: Compare with other annotations

    @RequestMapping maps URLs, @RequestParam extracts query parameters, others handle HTTP methods or errors.
  3. Final Answer:

    It extracts query string parameters from the URL and passes them to the method. -> Option B
  4. Quick Check:

    @RequestParam reads query parameters = A [OK]
Quick Trick: Remember: @RequestParam reads URL query values [OK]
Common Mistakes:
  • Confusing @RequestParam with @PathVariable
  • Thinking it maps URLs instead of parameters
  • Assuming it handles HTTP methods

Want More Practice?

15+ quiz questions · All difficulty levels · Free

Free Signup - Practice All Questions
More Spring Boot Quizzes