.net 导出Excel插件Npoi的使用

1、NuGet搜索Npoi并安装

2、添加引用将包引用进来

3、Controller里引用

4、使用

  public ActionResult ExportExcel()
        {

            
            plist = 数据源
            HSSFWorkbook hssfworkbook = new HSSFWorkbook();
            HSSFSheet sheet1 = (HSSFSheet)hssfworkbook.CreateSheet("Sheet1");
            HSSFRow row = (HSSFRow)sheet1.CreateRow(0);
         
            row.CreateCell(0).SetCellValue("姓名");
            row.CreateCell(1).SetCellValue("序号");
            row.CreateCell(2).SetCellValue("组别");
            row.CreateCell(3).SetCellValue("手机号");
            row.CreateCell(4).SetCellValue("职务");
            row.CreateCell(5).SetCellValue("连锁");
            row.CreateCell(6).SetCellValue("门店");
            row.CreateCell(7).SetCellValue("省份");
            row.CreateCell(8).SetCellValue("城市");
          

            HSSFRow[] rowList = new HSSFRow[plist.Count()];
            int i = 0;
            foreach (var item in plist)
            {
                sheet1.SetColumnWidth(i, 30 * 256);
                rowList[i] = (HSSFRow)sheet1.CreateRow(i + 1);
                sheet1.SetColumnWidth(0, 8 * 256);//将第一列编号的单元格的宽度设置为8个字符
                rowList[i].CreateCell(0).SetCellValue(item.WeiXinUser3.Name);
                rowList[i].CreateCell(1).SetCellValue(item.WeiXinUser3.SerialNum.ToString());
               
                rowList[i].CreateCell(2).SetCellValue(item.GroupName);
                rowList[i].CreateCell(3).SetCellValue(item.WeiXinUser3.MobilePhone);
                rowList[i].CreateCell(4).SetCellValue(item.WeiXinUser3.WorkDuty);
                rowList[i].CreateCell(5).SetCellValue(item.WeiXinUser3.ChainStoreName);
                rowList[i].CreateCell(6).SetCellValue(item.WeiXinUser3.ShopName);
                rowList[i].CreateCell(7).SetCellValue(item.WeiXinUser3.Province.Name);
                rowList[i].CreateCell(8).SetCellValue(item.WeiXinUser3.City.Name);


                i++;
            }

            System.IO.MemoryStream ms = new System.IO.MemoryStream();
            hssfworkbook.Write(ms);
            return File(ms.ToArray(), "application/ms-excel", area.AreaName + "明细.xls");
        }