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What is the main purpose of using @ControllerAdvice in a Spring Boot application?

easy📝 Conceptual Q11 of 15
Spring Boot - Exception Handling
What is the main purpose of using @ControllerAdvice in a Spring Boot application?
ATo handle exceptions globally for all controllers in one place
BTo define REST endpoints for the application
CTo configure database connections
DTo create scheduled tasks
Step-by-Step Solution
Solution:
  1. Step 1: Understand the role of @ControllerAdvice

    @ControllerAdvice is a special annotation in Spring Boot that allows you to write code to handle exceptions or apply logic across all controllers globally.
  2. Step 2: Identify its main use

    Its main use is to centralize exception handling so you don't have to repeat error handling code in every controller.
  3. Final Answer:

    To handle exceptions globally for all controllers in one place -> Option A
  4. Quick Check:

    @ControllerAdvice = global exception handling [OK]
Quick Trick: Think global error handling for all controllers [OK]
Common Mistakes:
  • Confusing @ControllerAdvice with @RestController
  • Thinking it configures database or tasks
  • Assuming it defines endpoints

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