How can you create a custom validator to validate a specific field in a Spring Boot application?
- Implement the @CustomValidator annotation and apply it to the field.
- Extend the Validator interface and implement the validate method.
- Use the @Valid annotation with custom validation logic directly in the field getter.
- Spring Boot does not support custom field-level validation.
To create a custom validator in Spring Boot, you should extend the Validator interface and implement the validate method. This allows you to define custom validation logic for specific fields in your application. Options 1 and 3 are not correct; Spring Boot does not have an @CustomValidator annotation for field-level validation, and the @Valid annotation is typically used at the method level, not for field-level validation. Option 4 is incorrect as it's not a true statement.
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