使用mapstruct映射嵌套對象

Question

我創建如下的映射。 如何將平面對象屬性（如街道，城市等）映射到域對象中的嵌套地址。 當我嘗試我有一個錯誤：

[ERROR]診斷：返回類型中的未知屬性“address.postalCode”。 @Mapping（source =“city”，target =“address.city”），

@Mapper(componentModel = "spring", uses = {})
public interface CompanyMapper {
    @Mappings({
            @Mapping(source = "id", target = "id"),
            @Mapping(source = "street", target = "address.street"),
            @Mapping(source = "city", target = "address.city"),
            @Mapping(source = "postalCode", target = "address.postalCode"),
            @Mapping(source = "province", target = "address.province"),
    })
    DomainObject map(DtoObject dto);

和班級......

public class Address {
            private String street;
            private Integer streetNumber;
            private String city;
            private String postalCode;
            private String province;
            //getters and setters
    }
public class DomainObject {
        private String id;
        private Address address;
        //getters and setters
}

public class DtoObject {
        private String id;
        private String street;
        private String city;
        private String postalCode;
        private String province;
        //getters and setters
}

Answer 1

當您嘗試使用它時，嵌套在目標端尚不支持。 有一個功能請求（ 問題＃389 ），但我們還沒有實現這一點。

Answer 2

我找不到在一種方法中做到這一點的方法。 這是我的解決方案：

@Mapper
public interface DtoObjectMapper {

    Address toAddress(DtoObject dtoObject);

    DomainObject toDomainObject(DtoObject dtoObject, Address address);

}

使用時;

@Component
public class SomeClass {

    @Autowired
    private DtoObjectMapper dtoObjectMapper;

    public DomainObject convert(DtoObject dtoObject) {
        return dtoObjectMapper.toDomainObject(dtoObject, dtoObjectMapper.toAddress(dtoObject));
    }
}