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

【问题标题】：How to using mapstruct and springboot bean together? @autowired如何一起使用mapstruct和springboot bean？ @autowired
【发布时间】：2022-02-04 07:04:29
【问题描述】：

@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？ @autowired

【问题讨论】：

标签： java spring-boot javabeans autowired mapstruct

【解决方案1】：

您需要将接口更改为抽象类并将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，因为您使用的是componentModel = "spring"。您可以简单地将映射器自动装配到其他 Spring bean。

【讨论】：