SpringBoot BeanValidator custom messages from MessageSource

messages.properties

...
validation.id.NotEmpty=ID is required.
validation.id.Size=ID must be minimum 4 and maximum 20 characters.
validation.id.Pattern=ID must start with alphabet and contain alphanumeric characters.
validation.email.NotEmpty=email is required.
validation.email.Email=Not an valid email format.
validation.password.NotEmpty=password is required.
validation.password.Size=Password must be minimum 8 and maximum 30 characters.
validation.password.Pattern=Password must contain at least 1 numeric, 1 alphabet, 1 capital letter and special character.
...

messages_ko.properties

...
validation.id.NotEmpty=ID는 필수 입력사항입니다.
validation.id.Size=ID는 4자이상 20자 이하입니다.
validation.id.Pattern=ID는 4자이상 20자 이하입니다.
validation.email.NotEmpty=이메일은 필수 입력사항입니다.
validation.email.Email=이메일 형식이 올바르지 않습니다.
validation.password.NotEmpty=비밀번호는 필수 입력사항입니다.
validation.password.Size=비밀번호는 8자이상 20자 이하입니다.
validation.password.Pattern=비말번호는 최소 1글자의 영문 대문자, 숫자, 특수문자가 포함되어 있어야 합니다.
...

SignupForm.java

@Data
@NoArgsConstructor
@AllArgsConstructor
public class SignupForm {
    @NotEmpty(message = "{validation.id.NotEmpty}")
    @Pattern(regexp = "^[a-zA-Z]{1}[a-zA-Z0-9_]{4,20}$", message = "{validation.id.Pattern}")
    private String id;

    @NotEmpty(message = "{validation.email.NotEmpty}")
    @Email(message = "{validation.email.Email}")
    private String email;

    @NotEmpty(message = "{validation.password.NotEmpty}")
    @Pattern(regexp = "^(?=.*[0-9])(?=.*[a-z])(?=.*[A-Z])(?=.*[!@#$%^&+=])(?=\\S+$).{8,20}$", message = "{validation.password.Pattern}")
    private String password;
}

ValidatorConfig.java

@Configuration
public class ValidatorConfig {
    @Bean
    public LocalValidatorFactoryBean localValidatorFactoryBean(MessageSource messageSource) {
        LocalValidatorFactoryBean factory = new LocalValidatorFactoryBean();
        factory.setValidationMessageSource(messageSource);

        return factory;
    }
}