93 lines
3.5 KiB
C#
93 lines
3.5 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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using JNPF.FriendlyException;
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using Microsoft.AspNetCore.Http;
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using NPOI.HSSF.UserModel;
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using NPOI.SS.UserModel;
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using NPOI.XSSF.UserModel;
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namespace Tnb.WarehouseMgr
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{
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public class ExcelDataImportManager : BaseWareHouseService
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{
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/// <summary>
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/// 解析Excel到内存
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/// </summary>
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/// <param name="file"></param>
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/// <returns></returns>
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protected Task<List<Dictionary<string, object>>> ImportExcelToMemory(IFormFile file)
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{
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int rowIndex = 1;
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List<Dictionary<string, object>>? dics = new();
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IWorkbook? workbook = null;
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try
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{
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using (Stream stream = file.OpenReadStream())
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{
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// 2007版本
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if (file.Name.IndexOf(".xlsx") > 0)
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{
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workbook = new XSSFWorkbook(stream);
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}
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else if (file.Name.IndexOf(".xls") > 0)
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{
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workbook = new HSSFWorkbook(stream);
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}
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ISheet? sheet = workbook?.GetSheetAt(0);
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if (workbook == null || sheet == null) throw Oops.Bah("无导入数据");
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if (sheet?.LastRowNum <= 1) throw Oops.Bah("无导入数据");
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ICellStyle style = workbook.CreateCellStyle();
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IFont font = workbook.CreateFont();
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font.Color = IndexedColors.Black.Index; // 将字体颜色设置为黑色
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style.SetFont(font);
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var nameRow = sheet?.GetRow(0);
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if (nameRow != null)
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{
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Dictionary<string, object> dic = new Dictionary<string, object>();
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List<string> columns = new List<string>();
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columns = nameRow.Cells.Select(x => x.StringCellValue).ToList();
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columns.ForEach(x =>
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{
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var strings = x.Split(new char[2] { '(', ')' }, StringSplitOptions.RemoveEmptyEntries);
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x = strings[1];
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});
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if (columns?.Count > 0)
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{
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for (rowIndex = 1; rowIndex <= sheet?.LastRowNum; rowIndex++)
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{
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var row = sheet?.GetRow(rowIndex);
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if (row != null)
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{
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foreach (var col in columns)
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{
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ICell cell = row.GetCell(columns.IndexOf(col));
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dic.Add(col, cell.StringCellValue);
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}
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dics.Add(dic);
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}
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}
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if (dics == null) throw new AppFriendlyException("输入的数据为空", 500);
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}
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}
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}
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}
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catch (Exception)
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{
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//return Task.FromResult(dics);
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throw;
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}
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return Task.FromResult(dics);
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}
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public async Task<dynamic?> GenImportTemplate(params string[] fields)
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{
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return null;
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}
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}
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}
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