使用 mapstruct 从单个元素映射嵌入式列表

Question

我使用过 mappstruct，我遇到了一个问题，我不知道 mapstruct 是否可以帮助解决这个问题问题是我有一个数据 class

public class Data {
    private String firstName;
    private String lastName;
    private String state;
    private String city;
    private String street;
    private String zipCode;
}

和地址

Entity
public class Address {
    @Id
    private Long id;
    private String state;
    private String city;
    private String street;
    private String zipCode;

和人

@Data
public class Person {
    @Id
    private Long id;
    private String firstName;
    private String lastName;
    private String email;
    private List<Address> list;
}```

So the person have a list of address and I want from One Data object create one adresse Object 
and add that object to Person  
So after the mapping I need to have Person with List(size == 1) of address 

the mapper

@Mapper public 接口 DataToPerson {

DataToPerson MAPPER = Mappers.getMapper(DataToPerson.class);

Person dataToPerson(Data data);

}

 is that possible ? 

Thank you so much

Answer 1

为了执行这样的映射，您需要告诉 MapStruct 如何映射到 List<Address>。

例如

@Mapper
public interface DataToPerson {

    DataToPerson MAPPER = Mappers.getMapper(DataToPerson.class);

    @Mapping(target = "list", source = "data")
    Person dataToPerson(Data data);

    default List<Address> dataToAddressList(Data data) {
        return data != null ? Collections.singletonList(dataToAddress(data)) : null;
    }

    Address dataToAddress(Data data);

}

使用 mapstruct 从单个元素映射嵌入式列表

mapping Embedded List from single element with mapstruct

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mapstruct