java 使用 mapstruct 映射嵌套对象
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Mapping nested object with mapstruct
提问by Piotr Sobolewski
i create mapping like below. How to map flat dto object properties like (street, city, etc) to nested address in domain object. When I try to I've got an error:
我创建如下映射。如何将平面 dto 对象属性（如（街道、城市等）映射到域对象中的嵌套地址。当我尝试时，出现错误：
[ERROR] diagnostic: Unknown property "address.postalCode" in return type. @Mapping(source = "city", target = "address.city"),
[错误] 诊断：返回类型中的未知属性“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);
And classes...
还有课...
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
}
采纳答案by Gunnar
Nesting on the target side as you are trying to use it is not supported yet. There's a feature request for this (issue #389), but we did not yet get to implementing this.
尚不支持在您尝试使用时在目标端嵌套。对此有一个功能请求（问题 #389），但我们还没有开始实现它。
回答by user3088282
I could not find a way to do that in one method. Here is my solution :
我找不到一种方法来做到这一点。这是我的解决方案：
@Mapper
public interface DtoObjectMapper {
Address toAddress(DtoObject dtoObject);
DomainObject toDomainObject(DtoObject dtoObject, Address address);
}
while using ;
使用时；
@Component
public class SomeClass {
@Autowired
private DtoObjectMapper dtoObjectMapper;
public DomainObject convert(DtoObject dtoObject) {
return dtoObjectMapper.toDomainObject(dtoObject, dtoObjectMapper.toAddress(dtoObject));
}
}
