作用:用于需要拓展另一个表的一个字段(dto类跟do实体类的互转)jar包:<dependency> <groupId>com.github.dozermapper</groupId> <artifactId>dozer-core</artifactId> <version>6.4.0</version></dependency>编辑(进入页面需要显示数据如:上一步)Mapper mapper = DozerBeanMapperBuilder.buildDefault();bidBidprojectDTO = mapper.map(bidBidprojectDO, BidBidprojectDTO.class);更新bid_bidprojectBidBidprojectDO bidBidprojectDO=new BidBidprojectDO();Mapper mapper = DozerBeanMapperBuilder.buildDefault();bidBidprojectDO = mapper.map(bidBidprojectDTO, BidBidprojectDO.class);bidBidprojectService.update(bidBidprojectDO);