首先你得准备NPOI的dll文件
这里提供百度云链接：
链接：https://pan.baidu.com/s/1EavAso5hztTbuexgb9XsvA
提取码：jyk6
前台代码
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="导入到数据库.aspx.cs" Inherits="导入到数据库" %> <!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server"> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/> <title></title> </head> <body> <form id="form1" runat="server"> <div> <asp:FileUpload ID="FileUpload1" runat="server" /> <asp:Button ID="Button1" runat="server" Text="Button" OnClick="Button1_Click" /> </div> </form> </body> </html>
直接上后台代码，一定要先添加dll引用
using NPOI.HSSF.UserModel; using NPOI.XSSF.UserModel; using NPOI.SS.UserModel; using System; using System.Collections.Generic; using System.Data.SqlClient; using System.IO; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; public partial class 导入到数据库 : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { } protected void Button1_Click(object sender, EventArgs e) { IWorkbook workbook =null; if (FileUpload1.HasFile) { string filePath = Server.MapPath("~/Files/");//先要创建项目文件夹Files string fileName = FileUpload1.PostedFile.FileName; FileUpload1.SaveAs(filePath + fileName);//存到项目文件夹下 string fileExt = Path.GetExtension(fileName); using (FileStream fileReader = File.OpenRead(filePath + fileName)) { //创建工作簿对象接收文件流（Excel信息） try { using (var file = new FileStream(filePath+fileName, FileMode.Open, FileAccess.Read)) { if (fileExt == ".xls") { workbook = new HSSFWorkbook(file); } else if (fileExt == ".xlsx") { workbook = new XSSFWorkbook(file); } ISheet sheet = workbook.GetSheetAt(0); int ii = 1; //r = 2,剔除表头2行 for (int r = 2; r <= sheet.LastRowNum; r++) { //定义参数数组para //创建一行获取sheet行数据 IRow row = sheet.GetRow(r); string a = row.GetCell(0).ToString();//excel中的第一个单元格数据 string b = row.GetCell(12).ToString();//excel中的第12个单元格数据 //{这里使用的你自己的orm框架进行入库操作} ii++; } fileReader.Close();//关闭流 file.Close();//关闭流 //删除文件 System.IO.File.Delete(filePath + fileName); if (ii == sheet.LastRowNum) { Response.Write("<script>alert('已将Excel数据插入到数据库表')</script>"); } else { Response.Write("<script>alert('Excel数据插入到数据库表失败！')</script>"); } } } catch (Exception d) { } } } } }