Spring Boot Mapstruct With Password Encoder

CreateUserRequestModel.java

@Data
@NoArgsConstructor
@AllArgsConstructor
@Builder
@FieldDefaults(level = AccessLevel.PRIVATE)
public class CreateUserRequestModel {

    @NotBlank
    @Size(min=2)
    String firstName;

    @Size(min=2)
    String lastName;

    @NotBlank
    @Size(min=2,max = 16)
    String password;

    @NotBlank
    @Email
    String email;
}

EncodedMapping.java

@Qualifier // org.mapstruct.Qualifier
@Target({ElementType.TYPE,ElementType.METHOD})
@Retention(RetentionPolicy.CLASS)
public @interface EncodedMapping {
}

PasswordEncoderConfig.java

@Configuration
public class PasswordEncoderConfig {

    @Bean
    public PasswordEncoder passwordEncoder(){
        return new BCryptPasswordEncoder();
    }
}

PasswordEncoderMapper.java

@Component
@RequiredArgsConstructor
@FieldDefaults(level = AccessLevel.PRIVATE)
public class PasswordEncoderMapper {

    final PasswordEncoder passwordEncoder;

    @EncodedMapping
    public String encode(String value) {
        return passwordEncoder.encode(value);
    }
}

UserDto.java

@Data
@NoArgsConstructor
@AllArgsConstructor
@Builder
@FieldDefaults(level = AccessLevel.PRIVATE)
public class UserDto implements Serializable {

    String userId;
    String firstName;
    String lastName;
    String password;
    String email;
    String encryptedPassword;

}

UserMapper.java

@Mapper(uses = PasswordEncoderMapper.class)
public interface UserMapper {

    @Mapping(source = "password", target = "encryptedPassword", qualifiedBy = EncodedMapping.class)
    UserDto createUserRequestModelToUserDto(CreateUserRequestModel userRequestModel);
}

This happen with you too?

I think it’s no longer relevant, but I’ll still write) the argument source is the model field, the argument target is the dto field. There you write your field names. If the names match, then just leave the target.