mapstruct集合转换: No property named “xxx“ exists in source parameter(s). Did you mean “coursewareName“?

电玩女神 2023-10-10 20:10 15阅读 0赞

例如我们想要转换以下集合，并且做了对应的字段映射，但是最终不起作用。

@Mappings({
                @Mapping(source = "coursewareName", target = "name")
        })
        Page<HrefVo> dcConvertToHrefVo(Page<DigitalCoursewareSearchRespVo> digitalCoursewareSearchRespVoPage);

我们查看mapstruct为我们生成的代码可以看到：

@Override
        public Page<HrefVo> dcConvertToHrefVo(Page<DigitalCoursewareSearchRespVo> digitalCoursewareSearchRespVoPage) {
            if ( digitalCoursewareSearchRespVoPage == null ) {
                return null;
            }
    
            Page<HrefVo> page = new Page<HrefVo>();
    
            page.setPages( digitalCoursewareSearchRespVoPage.getPages() );
            page.setRecords( digitalCoursewareSearchRespVoListToHrefVoList( digitalCoursewareSearchRespVoPage.getRecords() ) );
            page.setTotal( digitalCoursewareSearchRespVoPage.getTotal() );
            page.setSize( digitalCoursewareSearchRespVoPage.getSize() );
            page.setCurrent( digitalCoursewareSearchRespVoPage.getCurrent() );
            page.setSearchCount( digitalCoursewareSearchRespVoPage.isSearchCount() );
            page.setOptimizeCountSql( digitalCoursewareSearchRespVoPage.isOptimizeCountSql() );
            List<OrderItem> list1 = digitalCoursewareSearchRespVoPage.getOrders();
            if ( list1 != null ) {
                page.setOrders( new ArrayList<OrderItem>( list1 ) );
            }
            page.setCountId( digitalCoursewareSearchRespVoPage.getCountId() );
            page.setMaxLimit( digitalCoursewareSearchRespVoPage.getMaxLimit() );
    
            return page;
        }

其中digitalCoursewareSearchRespVoListToHrefVoList方法是我数据的转换分页集合方法，接着点击可以看到，集合的转换实际上最终就是单个对象的转换，所以我们的Mapping映射加在单个对象的转换上就可以了，无需加在集合上！！！

protected List<HrefVo> digitalCoursewareSearchRespVoListToHrefVoList(List<DigitalCoursewareSearchRespVo> list) {
            if ( list == null ) {
                return null;
            }
    
            List<HrefVo> list1 = new ArrayList<HrefVo>( list.size() );
            for ( DigitalCoursewareSearchRespVo digitalCoursewareSearchRespVo : list ) {
                list1.add( dcConvert( digitalCoursewareSearchRespVo ) );
            }
    
            return list1;
        }

改为如下代码，即可将集合的映射成功了：

@Mappings({
                @Mapping(source = "coursewareName", target = "name")
        })
        HrefVo dcConvert(DigitalCoursewareSearchRespVo digitalCoursewareSearchRespVo);
    
    
        Page<HrefVo> dcConvertToHrefVo(Page<DigitalCoursewareSearchRespVo> digitalCoursewareSearchRespVoPage);