code: public Map getInfoByBizIdService(String bizId,String tableName,String bizCol){
  		//add 20170831 ninghao
  		Map filterViewRet=filterView4Select(tableName,new HashMap(),bizId,bizCol,TYPE_SELECT_BIZID);
  		if(filterViewRet!=null ){
  			return filterViewRet;
  		}
  		
  		Map retMap=getInnerDao().queryObjJoinByBizId(tableName, bizId,bizCol);
  		if(retMap==null){
  			return null;
  		}
  		CheckModelTypeUtil.addMetaCols(retMap);
  		CheckModelTypeUtil.changeNoStrCols(retMap);
  		return retMap;
  	}
docs: ���ҵ��id��ȡ��ݼ�¼
  @param bizId ҵ��id
  @param tableName �����
  @param bizCol ҵ�������
  @return
  @throws Exception