Mapstruct';后映射';不打电话
问题是,用Mapstruct';后映射';不打电话,mapstruct,Mapstruct,问题是,用@AfterMapping注释的方法根本不被调用。从testToEntityMapping转到toEntity方法,但它不调用任何toEntityAfterMapping()方法。为什么?可能吗?如何使用MapStruct实现这一点 (这里我准备了一个毫无意义的场景,但它完全抓住了我问题的本质) 实体: DTO: 制图员: public abstract class FordMapper<D extends FordDto> { public Ford toEnti
@AfterMapping
注释的方法根本不被调用。从testToEntityMapping
转到toEntity
方法,但它不调用任何toEntityAfterMapping()
方法。为什么?可能吗?如何使用MapStruct实现这一点
(这里我准备了一个毫无意义的场景,但它完全抓住了我问题的本质)实体: DTO: 制图员:
public abstract class FordMapper<D extends FordDto> {
public Ford toEntity(D dto) {
/* fill in fields common to both ford versions */
final Ford ford = new Ford();
ford.setColor(dto.getColor());
ford.setMarket(dto.getMarket());
return ford;
}
}
@Mapper(componentModel = "spring")
public abstract class EuropeanFordMapper extends FordMapper<EuropeanFordDto> {
@AfterMapping
public void toEntityAfterMapping(final EuropeanFordDto dto, @MappingTarget final Ford entity) {
/* Fill in fields related to european version of the ford */
entity.setTotalWidth(dto.getTotalWidth());
}
}
@Mapper(componentModel = "spring")
public abstract class AmericanFordMapper extends FordMapper<AmericanFordDto> {
@AfterMapping
public void toEntityAfterMapping(final AmericanFordDto dto, @MappingTarget final Ford entity) {
/* Fill in fields related to american version of the ford */
entity.setTotalWidth(dto.getTotalWidth());
}
}
好吧,这比我想象的要简单 映射器的公共接口{ @映射(target=“totalWidth”,ignore=true) 福特实体公开摘要(D dto); }
您甚至可以查看
toEntity()
方法中的实现,有一个对toEntityAfterMapping()
的调用,因此一切都是正确的,并且符合我们期望的结果。我对同一问题的解决方案是,我忘了在@AfterMapping方法中添加“default”关键字(我使用了接口)。之后,在生成的代码中出现了方法
如果您是Mapstruct新手,请不要忘记在进行更改后进行mvn/gradle清理和编译。我完全没有注意到您的方法在
FordMapper
中不是抽象的。我会编辑这个问题,然后使用第二种方法,即MapStruct方法。你甚至可以把你的抽象类
变成接口
我已经编辑了这个问题。希望它像你希望的那样。干杯
public abstract class FordDto {
public String market;
public String color;
//getters and setters omitted for brevity
}
public class EuropeanFordDto extends FordDto{
private int totalWidth;
public int getTotalWidth() {
return totalWidth + 2;//"+2" for EU market
}
//setter omitted for brevity
}
public class AmericanFordDto extends FordDto{
private int totalWidth;
public int getTotalWidth() {
return totalWidth + 1;//"+1" for US market
}
//setter omitted for brevity
}
public abstract class FordMapper<D extends FordDto> {
public Ford toEntity(D dto) {
/* fill in fields common to both ford versions */
final Ford ford = new Ford();
ford.setColor(dto.getColor());
ford.setMarket(dto.getMarket());
return ford;
}
}
@Mapper(componentModel = "spring")
public abstract class EuropeanFordMapper extends FordMapper<EuropeanFordDto> {
@AfterMapping
public void toEntityAfterMapping(final EuropeanFordDto dto, @MappingTarget final Ford entity) {
/* Fill in fields related to european version of the ford */
entity.setTotalWidth(dto.getTotalWidth());
}
}
@Mapper(componentModel = "spring")
public abstract class AmericanFordMapper extends FordMapper<AmericanFordDto> {
@AfterMapping
public void toEntityAfterMapping(final AmericanFordDto dto, @MappingTarget final Ford entity) {
/* Fill in fields related to american version of the ford */
entity.setTotalWidth(dto.getTotalWidth());
}
}
@Service
public class CarService {
@Autowired
private AmericanFordMapper americanFordMapper;
@Autowired
private EuropeanFordMapper europeanFordMapper;
public void testToEntityMapping(final FordDto dto) {
if (dto instanceof AmericanFordDto) {
americanFordMapper.toEntity((AmericanFordDto) dto);
} else {
europeanFordMapper.toEntity((EuropeanFordDto) dto);
}
}
}