ALL LESSONS
Module 8
Bean Validation Handling
Apr 5, 2026
1 min read
Request Validation
Automatic validation with detailed error responses.
Validation Annotations
@NotNull @NotBlank @Size @Email @Pattern @Min @Max @Valid (nested objects) Custom validators
Error Handling
- @ControllerAdvice global handler
- MethodArgumentNotValidException
- Custom error responses
- Validation groups