您好,我在使用 mapstruct 从子源类中设置 DTO 中的 List 操作时得到 null。有人可以帮我解决这个问题吗?请在这里找到我的代码
实体类:
public class Source {
int id;
String name;
List<ChildSource> childSource;
//getters and setters
}
public class ChildSource {
String code;
String action;
//getters and setters
}
目的地DTO:
public class TargetDTO{
int sNo;
String mName;
List<String> actions;
//getters and setters
}
MApper 类:
@Mapper(componentModel = "spring")
public abstract class SampleMapper {
@Mappings({
@Mapping(target = "id", source = "sno"),
@Mapping(target = "name", source = "mNAme")
})
public abstract TargetDTO toDto(Source source);
@IterableMapping(elementTargetType = String.class)
protected abstract List<String> mapStringtoList(List<ChildSource> childSource);
protected String mapChildSourceToString(ChildSource child) {
return child.getAction();
}
}
但我的操作列表在目标 dto 中设置为 null。有人可以帮我吗?
最佳答案
你可以这样做。
@Mapper(componentModel = "spring")
public abstract class SampleMapper {
@Mappings({
@Mapping(target = "id", source = "sno"),
@Mapping(target = "name", source = "mNAme"),
@Mapping(target = "actions", source = "childSource")
})
public abstract TargetDTO toDto(Source source);
protected abstract List mapStringtoList(List childSource);
protected String mapChildSourceToString(ChildSource child) {
return child.getAction();
}
}
关于java - 使用 mapstruct 从 List<Object> 映射 List<String>,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/46598488/