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1. 保存和更新公寓信息
请求数据的结构
@Schema(description = "公寓信息") @Data public class ApartmentSubmitVo extends ApartmentInfo { @Schema(description="公寓配套id") private List<Long> facilityInfoIds; @Schema(description="公寓标签id") private List<Long> labelIds; @Schema(description="公寓杂费值id") private List<Long> feeValueIds; @Schema(description="公寓图片id") private List<GraphVo> graphVoList; }Controller层
@Operation(summary = "保存或更新公寓信息") @PostMapping("saveOrUpdate") public Result saveOrUpdate(@RequestBody ApartmentSubmitVo apartmentSubmitVo) { apartmentInfoService.saveOrUpdateApartment(apartmentSubmitVo); return Result.ok(); }Service层
void saveOrUpdateApartment(ApartmentSubmitVo apartmentSubmitVo);/** * 保存或更新公寓信息 * * @param apartmentSubmitVo 公寓信息提交对象 * 若传入公寓ID为空，则执行插入操作；若不为空，则执行更新操作 * 更新操作时会先删除原有配套、杂费、标签和图片信息，再插入新的信息 */ @Override public void saveOrUpdateApartment(ApartmentSubmitVo apartmentSubmitVo) { //保存或修改公寓信息： //1.判断该参数id是否为空，为空：插入的新数据 不为空：修改数据 boolean isUpdate = apartmentSubmitVo.getId() != null; //2.调用父类保存或修改方法，将公寓基本信息进行保存 super.saveOrUpdate(apartmentSubmitVo); if (isUpdate) { //修改数据：直接将所有原数据删除后重新插入 //1.删除配套 LambdaQueryWrapper<ApartmentFacility> facilityLambdaQueryWrapper = new LambdaQueryWrapper<>(); facilityLambdaQueryWrapper.eq(ApartmentFacility::getApartmentId, apartmentSubmitVo.getId()); facilityService.remove(facilityLambdaQueryWrapper); //2.删除杂费 LambdaQueryWrapper<ApartmentFeeValue> feeValueLambdaQueryWrapper = new LambdaQueryWrapper<>(); feeValueLambdaQueryWrapper.eq(ApartmentFeeValue::getFeeValueId, apartmentSubmitVo.getId()); feeValueService.remove(feeValueLambdaQueryWrapper); //3.删除标签 LambdaQueryWrapper<ApartmentLabel> labelLambdaQueryWrapper = new LambdaQueryWrapper<>(); labelLambdaQueryWrapper.eq(ApartmentLabel::getLabelId, apartmentSubmitVo.getId()); labelService.remove(labelLambdaQueryWrapper); //4.删除图片 LambdaQueryWrapper<GraphInfo> graphInfoLambdaQueryWrapper = new LambdaQueryWrapper<>(); graphInfoLambdaQueryWrapper.eq(GraphInfo::getId, apartmentSubmitVo.getId()); graphInfoService.remove(graphInfoLambdaQueryWrapper); } //1.插入配套 List<Long> facilityInfoIdsList = apartmentSubmitVo.getFacilityInfoIds(); if (!CollectionUtils.isEmpty(facilityInfoIdsList)) { ArrayList<ApartmentFacility> facilityArrayList = new ArrayList<>(); for (Long facilityId : facilityInfoIdsList) { ApartmentFacility apartmentFacility = ApartmentFacility.builder().build(); apartmentFacility.setFacilityId(facilityId); apartmentFacility.setApartmentId(apartmentSubmitVo.getId()); facilityArrayList.add(apartmentFacility); } facilityService.saveBatch(facilityArrayList); } //2.插入杂费 List<Long> feeValueIds = apartmentSubmitVo.getFeeValueIds(); if (!CollectionUtils.isEmpty(feeValueIds)) { ArrayList<ApartmentFeeValue> apartmentFeeValueList = new ArrayList<>(); for (Long feeValueId : feeValueIds) { ApartmentFeeValue apartmentFeeValue = ApartmentFeeValue.builder().build(); apartmentFeeValue.setApartmentId(apartmentSubmitVo.getId()); apartmentFeeValue.setFeeValueId(feeValueId); apartmentFeeValueList.add(apartmentFeeValue); } feeValueService.saveBatch(apartmentFeeValueList); } //3.插入标签 List<Long> labelIds = apartmentSubmitVo.getLabelIds(); if (!CollectionUtils.isEmpty(labelIds)) { ArrayList<ApartmentLabel> apartmentLabelArrayList = new ArrayList<>(); for (Long labelId : labelIds) { ApartmentLabel apartmentLabel = ApartmentLabel.builder().build(); apartmentLabel.setApartmentId(apartmentSubmitVo.getId()); apartmentLabel.setLabelId(labelId); apartmentLabelArrayList.add(apartmentLabel); } labelService.saveBatch(apartmentLabelArrayList); } //4.插入图片 List<GraphVo> graphVoList = apartmentSubmitVo.getGraphVoList(); if (!CollectionUtils.isEmpty(graphVoList)) { ArrayList<GraphInfo> graphInfos = new ArrayList<>(); for (GraphVo graphVo : graphVoList) { GraphInfo graphInfo = new GraphInfo(); graphInfo.setItemType(ItemType.APARTMENT); graphInfo.setItemId(apartmentSubmitVo.getId()); graphInfo.setName(graphVo.getName()); graphInfo.setUrl(graphVo.getUrl()); graphInfos.add(graphInfo); } graphInfoService.saveBatch(graphInfos); } }2. 根据条件分页查询
请求数据结构
@Data @Schema(description = "公寓查询实体") public class ApartmentQueryVo { @Schema(description = "省份id") private Long provinceId; @Schema(description = "城市id") private Long cityId; @Schema(description = "区域id") private Long districtId; }响应数据结构
@Data @Schema(description = "后台管理系统公寓列表实体") public class ApartmentItemVo extends ApartmentInfo { @Schema(description = "房间总数") private Long totalRoomCount; @Schema(description = "空闲房间数") private Long freeRoomCount; }Controller层
@Operation(summary = "根据条件分页查询公寓列表") @GetMapping("pageItem") public Result<IPage<ApartmentItemVo>> pageItem(@RequestParam long current, @RequestParam long size, ApartmentQueryVo queryVo) { Page<ApartmentItemVo> page = new Page<>(current, size); IPage<ApartmentItemVo> result = apartmentInfoService.pageItem(page, queryVo); return Result.ok(result); }Service层
IPage<ApartmentItemVo> pageItem(Page<ApartmentItemVo> page, ApartmentQueryVo queryVo); @Override public IPage<ApartmentItemVo> pageItem(Page<ApartmentItemVo> page, ApartmentQueryVo queryVo) { return apartmentInfoMapper.pageItem(page, queryVo); }Mapper层
IPage<ApartmentItemVo> pageApartmentItemByQuery(IPage<ApartmentItemVo> page, ApartmentQueryVo queryVo);多表联查大sql
<select id="pageItem" resultType="com.atguigu.lease.web.admin.vo.apartment.ApartmentItemVo"> select ai.id, ai.name, ai.introduction, ai.district_id, ai.district_name, ai.city_id, ai.city_name, ai.province_id, ai.province_name, ai.address_detail, ai.latitude, ai.longitude, ai.phone, ai.is_release, ifnull(tc.cnt, 0) total_room_count, ifnull(tc.cnt, 0) - ifnull(cc.cnt, 0) free_room_count from (select id, name, introduction, district_id, district_name, city_id, city_name, province_id, province_name, address_detail, latitude, longitude, phone, is_release from apartment_info <where> is_deleted=0 <if test="queryVo.provinceId != null"> and province_id=#{queryVo.provinceId} </if> <if test="queryVo.cityId != null"> and city_id=#{queryVo.cityId} </if> <if test="queryVo.districtId != null"> and district_id=#{queryVo.districtId} </if> </where>) ai left join (select apartment_id, count(*) cnt from room_info where is_deleted = 0 and is_release = 1 group by apartment_id) tc on ai.id = tc.apartment_id left join (select apartment_id, count(*) cnt from lease_agreement where is_deleted = 0 and status in (2, 5) group by apartment_id) cc on ai.id = cc.apartment_id </select> knife4j调整传递参数
默认情况下Knife4j为该接口生成的接口文档如下图所示，其中的queryVo参数不方便调试
可在application.yml文件中增加如下配置，将queryVo做打平处理
springdoc: default-flat-param-object: true 
3. 根据ID获取公寓详细信息
响应数据
@Schema(description = "公寓信息") @Data public class ApartmentDetailVo extends ApartmentInfo { @Schema(description = "图片列表") private List<GraphVo> graphVoList; @Schema(description = "标签列表") private List<LabelInfo> labelInfoList; @Schema(description = "配套列表") private List<FacilityInfo> facilityInfoList; @Schema(description = "杂费列表") private List<FeeValueVo> feeValueVoList; }Controller层
@Operation(summary = "根据ID获取公寓详细信息") @GetMapping("getDetailById") public Result<ApartmentDetailVo> getDetailById(@RequestParam Long id) { ApartmentDetailVo apartmentDetailVo = apartmentInfoService.getDetailById(id); return Result.ok(apartmentDetailVo); }Service层
ApartmentDetailVo getDetailById(Long id); @Override public ApartmentDetailVo getDetailById(Long id) { //1.查询公寓基本信息 ApartmentInfo apartmentInfo = apartmentInfoMapper.selectById(id); //2.查询图片列表 List<GraphVo> graphVoList = graphInfoMapper.selectGraphVoList(id, ItemType.APARTMENT); //3.查询标签列表 List<LabelInfo> labelInfoList = labelInfoMapper.selectLabelInfoList(id); //通过公寓id查询出所有标签id，在通过标签id查出所有标签信息 //4.查询配套列表 List<FacilityInfo> facilityInfoList = facilityInfoMapper.selectFacilityInfoList(id); //通过公寓id查询出所有配套id，在通过配套id查出所有配套信息 //5.查询杂费列表 List<FeeValueVo> feeValueList = feeValueMapper.selectFeeValueList(id); //通过公寓id查询出所有杂费值id，在通过杂费值id查出所有杂费以及杂费名称id，再通过杂费名称id查出杂费名 //6.组装结果 ApartmentDetailVo apartmentDetailVo = new ApartmentDetailVo(); BeanUtils.copyProperties(apartmentInfo, apartmentDetailVo); apartmentDetailVo.setGraphVoList(graphVoList); apartmentDetailVo.setLabelInfoList(labelInfoList); apartmentDetailVo.setFacilityInfoList(facilityInfoList); apartmentDetailVo.setFeeValueVoList(feeValueList); return apartmentDetailVo; }Mapper。。。
4. 根据ID删除公寓信息
@Operation(summary = "根据id删除公寓信息") @DeleteMapping("removeById") public Result removeById(@RequestParam Long id) { apartmentInfoService.removeApartmentById(id); return Result.ok(); }