public void delete(ConfigBuilding entity) {
//判断楼栋下是否有商铺，有则不允许删除
LambdaQueryWrapper lqw = Wrappers.lambdaQuery();
lqw.eq(ConfigHouseEntity::getBlock, entity.getBlock());
lqw.eq(ConfigHouseEntity::getBuilding, entity.getId());
long count = configHouseMapper.selectCount(lqw);
System.out.println(count+"数量");
if(count>0) {
throw new DataException("该楼栋下有商铺，不允许删除");
}
System.out.println("test"+entity);
entity.setDelFlag("1");
int i = this.baseMapper.update(null,Wrappers.lambdaUpdate().set(ConfigBuilding::getDelFlag,"1").eq(ConfigBuilding::getId,entity.getId()));
}
修改逻辑 lqw.eq(ConfigHouseEntity::getBuilding, entity.getId());应该为id
将删除改为更新逻辑