java - 如何一起使用 mapstruct 和 springboot bean？ @autowired

Question

@Mapper(componentModel = "spring")
public interface DemoConvert {
    public static DemoConvert INSTANCE = mappers.getMapper(DemoConvert.class);

    @AutoWired
    private PersonInfoSearchService personInfoSearchService;

    @Mapping(source = "name", target = "name")
    @Mapping(source = "id", target = "gender", expression = "java(personInfoSearchService.searchGenderById(id))")
    PersonDTO toPerson(TeacherDTO teacherDTO);
}

如何同时使用mapstruct和springboot bean？ @ Autowiring

Answer 1

您需要将接口(interface)更改为抽象类并将 PersonInfoSearchService 调用移动到 @Named 方法:

@Mapper(componentModel = "spring")
public abstract class DemoConvert {

    @Autowired
    private PersonInfoSearchService personInfoSearchService;

    
    @Mapping(source = "name", target = "name")
    @Mapping(source = "id", target = "gender", qualifiedByName = "mapGenderFromId")
    public abstract PersonDTO toPerson(TeacherDTO teacherDTO);


    @Named("mapGenderFromId")
    String mapGenderFromId(Long id) { // return type of gender, I took String. For id took Long
        return personInfoSearchService.searchGenderById(id);
    }
}

此外，您不需要声明 INSTANCE 变量，因为您正在使用 componentModel = "spring"。您可以简单地将您的映射器 Autowiring 到其他 spring bean 中。