Excel 导入解析数据 NPOIExcelHelper

前端代码
html

<link href="~/lib/bootstrap-fileinput/css/fileinput.min.css" media="all" rel="stylesheet" type="text/css" />
<link href="~/lib/bootstrap-fileinput/themes/explorer-fa/theme.min.css" media="all" rel="stylesheet" type="text/css" />
<script src="~/lib/bootstrap-fileinput/js/fileinput.min.js" type="text/javascript"></script>
<script src="~/lib/bootstrap-fileinput/js/locales/zh.js" type="text/javascript"></script>
<script src="~/lib//bootstrap-fileinput/themes/explorer-fa/theme.min.js" type="text/javascript"></script>
<script src="~/lib/bootstrap-fileinput/themes/fa/theme.min.js" type="text/javascript"></script>

<div class="modal-body">
    <form name="msproject" role="form" method="post" novalidate class="form-validation" enctype="multipart/form-data">
        <div class="file-loading">
            <input id="kv-explorer" type="file" multiple />
        </div>
    </form>
</div>

JS

(function ($) {
    app.modals.ImportProjectMaterialsModal = function () {
        var _modalManager;
      
        var _$form = null;

        this.init = function (modalManager) {
            _modalManager = modalManager;

            var materilaTable = _modalManager.getOptions().importMppOptions.materials;

            _$form = _modalManager.getModal().find('form[name=CmsImportMsProjectMaterilasForm]');
            _$form.validate({ ignore: "" });

            var _projectId = _modalManager.getModal().find('input[name=ProjectId]').val();
            var _actionType = _modalManager.getModal().find('input[name=ActionType]').val();

            _modalManager.getModal().find('#kv-explorer')
                .fileinput({
                    'theme': 'explorer-fa',
                    'uploadUrl': '', //上传的地址
                    language: 'zh', //设置语言
                    overwriteInitial: false,
                    showPreview: false,
                    showClose: false,
                    allowedFileExtensions: ['xls','xlsx'],
                    initialPreviewAsData: false,
                    previewFileIcon: "<i class='glyphicon glyphicon-king'></i>",
                    maxFileCount: 1,//允许同时上传的最大文件数
                    enctype: 'multipart/form-data',
                    uploadExtraData: function () {
                        var data = {
                            projectId: _projectId,
                            actionType: _actionType
                        };
                        return data;
                    }
                })
                .on("fileuploaded", function (event, data, previewId, index) {
                    abp.notify.info(app.localize('SavedSuccessfully'));
                    materilaTable.reload();
                    _modalManager.setResult(data.response.result);
                    _modalManager.close();
                });
        };

        this.save = function () {
            if (!_$form.valid()) {
                return;
            }
        };
    }
})(jQuery)

后台上传

  string localFileName = null;
            string fileName = Guid.NewGuid().ToString("N") + Path.GetExtension(file.FileName);
            string location = Path.Combine("");  //上传到的路径
            using (FileStream fs = new FileStream(location, FileMode.Create))
            {
                await file.CopyToAsync(fs);
                fs.Close(); 
                localFileName = fs.Name;
            }
            return await SetupFromMSProjectMaterials(projectId, localFileName);

后台解析使用NPOI

 public class NPOIExcelHelper
        {
            /// <summary>
            /// 将excel导入到datatable
            /// </summary>
            /// <param name="filePath">excel路径</param>
            /// <param name="isColumnName">第一行是否是列名</param>
            /// <returns>返回datatable</returns>
            public static DataTable ExcelToDataTable(string filePath, bool isColumnName)
            {
                DataTable dataTable = null;
                FileStream fs = null;
                DataColumn column = null;
                DataRow dataRow = null;
                IWorkbook workbook = null;
                ISheet sheet = null;
                IRow row = null;
                ICell cell = null;
                int startRow = 0;
                try
                {
                    using (fs = File.OpenRead(filePath))
                    {
                        // 2007版本
                        if (filePath.IndexOf(".xlsx") > 0)
                            workbook = new XSSFWorkbook(fs);
                        // 2003版本
                        else if (filePath.IndexOf(".xls") > 0)
                            workbook = new HSSFWorkbook(fs);

                        if (workbook != null)
                        {
                            sheet = workbook.GetSheetAt(0);//读取第一个sheet，当然也可以循环读取每个sheet
                            dataTable = new DataTable();
                            if (sheet != null)
                            {
                                int rowCount = sheet.LastRowNum;//总行数
                                if (rowCount > 0)
                                {
                                    IRow firstRow = sheet.GetRow(0);//第一行
                                    int cellCount = firstRow.LastCellNum;//列数

                                    //构建datatable的列
                                    if (isColumnName)
                                    {
                                        startRow = 1;//如果第一行是列名，则从第二行开始读取
                                        for (int i = firstRow.FirstCellNum; i < cellCount; ++i)
                                        {
                                            cell = firstRow.GetCell(i);
                                            if (cell != null)
                                            {
                                                if (cell.StringCellValue != null)
                                                {
                                                    column = new DataColumn(cell.StringCellValue);
                                                    dataTable.Columns.Add(column);
                                                }
                                            }
                                        }
                                    }
                                    else
                                    {
                                        for (int i = firstRow.FirstCellNum; i < cellCount; ++i)
                                        {
                                            column = new DataColumn("column" + (i + 1));
                                            dataTable.Columns.Add(column);
                                        }
                                    }

                                    //填充行
                                    for (int i = startRow; i <= rowCount; ++i)
                                    {
                                        row = sheet.GetRow(i);
                                        if (row == null) continue;

                                        dataRow = dataTable.NewRow();
                                        for (int j = row.FirstCellNum; j < cellCount; ++j)
                                        {
                                            cell = row.GetCell(j);
                                            if (cell == null)
                                            {
                                                dataRow[j] = "";
                                            }
                                            else
                                            {
                                                //CellType(Unknown = -1,Numeric = 0,String = 1,Formula = 2,Blank = 3,Boolean = 4,Error = 5,)
                                                switch (cell.CellType)
                                                {
                                                    case CellType.Blank:
                                                        dataRow[j] = "";
                                                        break;
                                                    case CellType.Numeric:
                                                        short format = cell.CellStyle.DataFormat;
                                                        //对时间格式（2015.12.5、2015/12/5、2015-12-5等）的处理
                                                        if (format == 14 || format == 31 || format == 57 || format == 58)
                                                            dataRow[j] = cell.DateCellValue;
                                                        else
                                                            dataRow[j] = cell.NumericCellValue;
                                                        break;
                                                    case CellType.String:
                                                        dataRow[j] = cell.StringCellValue;
                                                        break;
                                                }
                                            }
                                        }
                                        dataTable.Rows.Add(dataRow);
                                    }
                                }
                            }
                        }
                    }
                    return dataTable;
                }
                catch (Exception e)
                {
                    if (fs != null)
                    {
                        fs.Close();
                    }
                    return null;
                }
            }
        }