[Solved] What does the @Validated annotation do when placed on a Spring Boot controller class? — Ans: It enables validation of method parameters annotated with validation... | Spring Boot

Spring Boot - Request and Response Handling

What does the @Validated annotation do when placed on a Spring Boot controller class?

AIt disables all validation for the controller methods.

BIt automatically logs validation errors without throwing exceptions.

CIt enables validation of method parameters annotated with validation annotations.

DIt converts validation errors into HTTP 500 server errors.

Step-by-Step Solution

Solution:

Step 1: Understand the role of @Validated on controller
The @Validated annotation activates validation for method parameters annotated with validation constraints in the controller.
Step 2: Check behavior on validation failure
If validation fails, Spring Boot throws a MethodArgumentNotValidException or similar, not disabling validation or logging silently.
Final Answer:
It enables validation of method parameters annotated with validation annotations. -> Option C
Quick Check:
@Validated activates validation = B [OK]

Quick Trick: Use @Validated to activate method parameter validation [OK]

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