MapStruct：将多个源字段映射到一个目标字段

Question

java prettyprint-override">public class PersonVo {
    private String firstName;
    private String lastName;
}

private class PersonEntity {
    private String fullName;
}

@Mapper
public interface PersonMapper {
    @Mapping(target = "fullName", source = {"firstName", "lastName"}, qualifiedByName="toFullName")
    PersonEntity toEntity(PersonVo person);

    @Named("toFullName")
    String translateToFullName(String firstName, String lastName) {
        return firstName + lastName;
    }
}

“想要解决方案B”

@Mapper
public interface PersonMapper {
    @Mapping(target = "fullName", source = PersonVo.class, qualifiedByName="toFullName")
    PersonEntity toEntity(PersonVo person);

    @Named("toFullName")
    String translateToFullName(PersonVo pserson) {
        return pserson.getFirstName() + pserson.getLastName();
    }
}

有什么办法可以做到这一点吗？

Answer 1

以下是我的答案。

@Mapper
public interface PersonMapper {
    @Mapping(target = "fullName", source = ".", qualifiedByName="toFullName")
    PersonEntity toEntity(PersonVo person);

    @Named("toFullName")
    String translateToFullName(PersonVo pserson) {
        return pserson.getFirstName() + pserson.getLastName();
    }
}

要点是

@mapping(target=“fullname”,source=“.”,qualifiedbyname=“tofullname”）