<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-validation</artifactId>
</dependency>
public class CustomEmailValidator implements ConstraintValidator<Email, String> {
@Override
public boolean isValid(String value, ConstraintValidatorContext context) {
}
}
public class UserModel {
private String username;
private String email;
}
public class UserController {
@PostMapping("/register")
public String registerUser(@Valid @RequestBody UserModel userModel) {
}
}
@ControllerAdvice
public class GlobalExceptionHandler {
@ExceptionHandler(MethodArgumentNotValidException.class)
@ResponseStatus(HttpStatus.BAD_REQUEST)
public ResponseEntity<String> handleValidationException(MethodArgumentNotValidException ex) {
}
}
