EasyExcel读取excel读复杂表头文件

 最近在项目开发中,遇到的一个excel复杂表头的导入数据库操作,具体怎么做?直接上代码吧!

EasyExcel读取excel读复杂表头文件_第1张图片

 1、文件上传。把你要导入的文件上传磁盘某个目录,当然你也可以导入到项目目录下都行。该类的位置就是controller层,给用户提供一个上传文件的接口。

/**
     * 文件上传到本地磁盘
     * @param file
     * @param req
     * @param model
     * @return
     */
    @PostMapping("/fileUpload")
    public String fileUpload(
            @RequestParam("file") MultipartFile file, HttpServletRequest req, Model model){
        try {
            // 获取文件的全名称
            String fileName = file.getOriginalFilename();
            String destFileName="D:"+ File.separator+File.separator+fileName;
            File destFile = new File(destFileName);
            destFile.getParentFile().mkdirs();
            System.out.println(destFile);
            file.transferTo(destFile);
            model.addAttribute("fileName",fileName);
            model.addAttribute("path",destFile);
        } catch (FileNotFoundException e) {
            e.printStackTrace();
            return "上传失败," + e.getMessage();
        } catch (IOException e) {
            e.printStackTrace();
            return "上传失败," + e.getMessage();
        }
        return "thymeleaf/success";
    }

2、导入单个excel表,controller层开放接口。

 /**
     * 导入单个excel表格数据
     * @param path
     * @return
     * @throws IOException
     */
    @RequestMapping(value = "/importSingleExcelData")
    public String importSingleExcelData(String path) throws IOException {
        // 调用导入的方法
        importDataService.importSingleExcelData(path);
        return "thymeleaf/ok";
    }

3、导入excel文件的接口,service层,当然里面到时候你还需要编写导入数据存储到数据库的接口,我这里就没展示出来了。 

public interface ImportDataService {

    // 导入单个Excel文件
    public void importSingleExcelData(String path) throws IOException;

}

 4、导入excel文件的接口实现类,serviceImpl层,同样的到时候将导入数据存储数据库的接口实现类在这里写。

/**
     * 导入单个Excel数据
     * @param path
     * @throws IOException
     */
    @Override
    public void importSingleExcelData(String path) throws IOException {
        File file = new File(path);
        InputStream inputStream = new FileInputStream(file);
        String fileName = file.getName();
        if (fileName.endsWith(".xls")) {
           String name = fileName.substring(0,fileName.length()-4);
            if ("这里是excel文件名称!".equals(name)) {
                EasyExcel.read(inputStream, Radiation.class, new ExcelListener(importDataService)).sheet().doRead();
            }
        }
    }

 5、最重要的就是这个ExcelListener,这个是导入excel数据的监听器。

public class ExcelListener extends AnalysisEventListener {

    // 导入数据service
    public ImportDataService importDataService;

    /**
     * 无参构造
     */
    public ExcelListener() {}

    /**
     * 有参构造,调用导入数据监听器传入service
     * @param importDataService
     */
    public ExcelListener(ImportDataService importDataService) {
        this.importDataService = importDataService;
    }

    private List list = new ArrayList();

    private Object object = new Object();
    WarReserve warReserve = new WarReserve();


    @Override
    public void invoke(Object object, AnalysisContext context) {

        //System.out.println("行:"+context.readRowHolder().getRowIndex());
        //System.out.println("对象:"+object);
        //System.out.println("Map结构:"+context.readRowHolder().getCellMap());

        int sheetNo = context.readSheetHolder().getSheetNo();
        if (sheetNo == 0) {
            // XXXX表
            GoodsReserve goodsReserve = new GoodsReserve();
            // 获取行的索引
            int index = context.readRowHolder().getRowIndex();
            // 获取该行的map数据
            Map map = context.readRowHolder().getCellMap();

            // excel最后一行备注信息
            String remark = "备注:以上为数据填写区域,各项单元格必填。";

            // 取指定行列的值
            if (index == 1) {
                // 取所属辖区和填表日期
                String area = context.readRowHolder().getCellMap().get(1).toString();
                // 提取省市区
                area = area.replaceAll("省(直辖市、自治区)",",").replaceAll("市(州、盟)",",").replaceAll("县(市、区、旗)","").replaceAll(" ","");
                // 取填表日期
                String tableDate = context.readRowHolder().getCellMap().get(4).toString().replaceAll("填表日期:","").replaceAll(" ","");
                System.out.println("内容1:"+area+"=="+tableDate);
                warReserve.setArea(area);
                warReserve.setTableDate(tableDate);
            }else if (index == 3) {
                // 取仓库名称, 储备库类型, 编号, 详细地址, 管理单位
                String storeName = context.readRowHolder().getCellMap().get(0).toString();
                String storeType = context.readRowHolder().getCellMap().get(1).toString();
                String number = context.readRowHolder().getCellMap().get(2).toString();
                String address = context.readRowHolder().getCellMap().get(3).toString();
                String managementUnit = context.readRowHolder().getCellMap().get(4).toString();
                System.out.println("内容2:"+storeName+"=="+storeType+"=="+number+"=="+address+"=="+managementUnit);
                warReserve.setStoreName(storeName);
                warReserve.setStoreType(storeType);
                warReserve.setNumber(number);
                warReserve.setAddress(address);
                warReserve.setManagementUnit(managementUnit);
            }else if (index == 6) {
                // 取经度, 纬度, 负责人姓名,负责人电话
                String longitude = context.readRowHolder().getCellMap().get(0).toString();
                String latitude = context.readRowHolder().getCellMap().get(1).toString();
                String name = context.readRowHolder().getCellMap().get(2).toString();
                String phone = context.readRowHolder().getCellMap().get(3).toString();
                System.out.println("内容3:"+longitude+"=="+latitude+"=="+name+"=="+phone);
                warReserve.setLongitude(longitude);
                warReserve.setLatitude(latitude);
                warReserve.setName(name);
                warReserve.setPhone(phone);
            }else if (index >= 9 && !map.get(0).toString().equals(remark)) {
                // 取主要储备物资中名称, 型号, 数量, 计量单位
                String goodsName = context.readRowHolder().getCellMap().get(0).toString();
                String goodsModel = context.readRowHolder().getCellMap().get(2).toString();
                String goodsNumber = context.readRowHolder().getCellMap().get(3).toString();
                String goodsUnit = context.readRowHolder().getCellMap().get(4).toString();
                System.out.println("内容4:"+goodsName+"=="+goodsModel+"=="+goodsNumber+"=="+goodsUnit);
                goodsReserve.setGoodsName(goodsName);
                goodsReserve.setGoodsModel(goodsModel);
                goodsReserve.setGoodsNumber(goodsNumber);
                goodsReserve.setGoodsUnit(goodsUnit);
                list.add(goodsReserve);
            }else if (map.get(0).toString().equals(remark)){
                warReserve.setGoodsReserves(list);
                ImportData importData = new ImportData();
                importData.setFileName("国家交通战备物资储备库潜力采集表");
                String studentJson = JSON.toJSONString(warReserve);
                importData.setFileData(studentJson);
                importData.setRemarkId(queryImportDataNumber()+1);
                importDataService.insertImportData(importData);
                System.out.println(warReserve);
            }
        }
    }

    @Override
    public void doAfterAllAnalysed(AnalysisContext analysisContext) {

    }

    /**
     * 查询导入数据记录条数
     */
    private int queryImportDataNumber() {
        return  importDataService.queryImportDataNumber();
    }
}
 
  

结束语:相信我展示这么多出来大家应该都懂了噢!如果还有问题欢迎大家留言。当然开发中有不妥之处欢迎大家提出了,博主多多改正,谢谢大家的阅读。 

 

 

 

 

 

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