Introduction
While developing any application, it is crucial to ensure fault tolerance to handle unexpected scenarios gracefully. In Spring and Spring Boot, exception handling is one of the key techniques to achieve fault tolerance. Proper exception handling prevents application crashes, enhances debugging, and improves user experience.
In this blog, I will guide you through various ways to handle exceptions globally in a Spring Boot application, including using @ExceptionHandler
, @ControllerAdvice
, and ResponseStatusException
.
Why is Exception Handling Important?
- Improves user experience: Prevents users from seeing raw error messages.
- Enhances maintainability: Helps developers diagnose and debug issues.
- Ensures stability: Prevents application crashes due to unhandled exceptions.
1. Using @ExceptionHandler
The @ExceptionHandler
annotation is used to handle specific exceptions within a single controller.
Explanation:
- The
getUserById
…