背景

如果你经常使用excel，想将excel的数据快速插入数据库，或者读取excel的内容，做一些逻辑处理。那么本文可以帮助你。

采用poi jar

直接将文件转为文件流，后续获取流来操作数据。

java"> public Integer doUploadMetaQ(InputStream inputStream) {
        List<RiskAppBasicDataDO> riskAppBasicDataDOList = new ArrayList<>();
        try {
            Workbook workbook = new XSSFWorkbook(inputStream);
            Sheet sheet = workbook.getSheetAt(RiskAppBasicDataConstant.ZERO);
            for (int i = 1; i < sheet.getPhysicalNumberOfRows(); i++) {
                RiskAppBasicDataDO riskAppBasicDataDO = new RiskAppBasicDataDO(StringUtils.EMPTY);
                Row row = sheet.getRow(i);

                riskAppBasicDataDO.setAppName(row.getCell(0)==null?"":row.getCell(0).toString());
                riskAppBasicDataDO.setServiceType(ServiceTypeEnum.METAQ.getValue());
                riskAppBasicDataDO.setDetailType(row.getCell(2)==null?"":row.getCell(2).toString());
                riskAppBasicDataDO.setServiceName(row.getCell(1)==null?"":row.getCell(1).toString());
                riskAppBasicDataDO.setNamespace(row.getCell(3)==null?"":row.getCell(3).toString());
                log.info("appName is {} ",riskAppBasicDataDO.getAppName());
                riskAppBasicDataDOList.add(riskAppBasicDataDO);
            }

        } catch (IOException e) {
            e.printStackTrace();
        }
        if (CollectionUtils.isEmpty(riskAppBasicDataDOList)) return RiskAppBasicDataConstant.ZERO;
        return riskAppBasicDataDao.batchInsert(riskAppBasicDataDOList);
    }