asp.net中导入导出Excel

 //前端按钮请求

function Out_Excel(TC_ID) {

$.post("Ajax/ExportExcel.aspx", { TC_ID: TC_ID }, function (data) {

if (data != "") {
???????????????????window.open(data);
???????????????}

???????????})

???????}

///后端接口处理
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using Model;
using BLL;
using System.IO;

namespace CRM系统.Ajax
{
???public partial class ExportExcel : System.Web.UI.Page
???{
???????protected void Page_Load(object sender, EventArgs e)
???????{
???????????int TC_ID = Convert.ToInt32(Request["TC_ID"]);
???????????List<Out_Excel> stuList =StudentsBLL.GetstudentsAndTrainClassStudents(TC_ID);

???????????//创建Excel文件的对象
???????????NPOI.HSSF.UserModel.HSSFWorkbook book = new NPOI.HSSF.UserModel.HSSFWorkbook();

???????????//添加一个sheet
???????????NPOI.SS.UserModel.ISheet sheet1 = book.CreateSheet("Sheet1");

???????????//添加标题
???????????NPOI.SS.UserModel.IRow row1 = sheet1.CreateRow(0);
???????????row1.CreateCell(0).SetCellValue("原校区");
???????????row1.CreateCell(1).SetCellValue("原班级");
???????????row1.CreateCell(2).SetCellValue("现班级");
???????????row1.CreateCell(3).SetCellValue("校区代码");
???????????row1.CreateCell(4).SetCellValue("序号");
???????????row1.CreateCell(5).SetCellValue("学号");
???????????row1.CreateCell(6).SetCellValue("姓名");
???????????row1.CreateCell(7).SetCellValue("姓名拼音");
???????????row1.CreateCell(8).SetCellValue("性别");
???????????row1.CreateCell(9).SetCellValue("身份证号");
???????????row1.CreateCell(10).SetCellValue("班级编号");
???????????row1.CreateCell(11).SetCellValue("学生状态");
???????????row1.CreateCell(12).SetCellValue("已通过认证");
???????????row1.CreateCell(13).SetCellValue("学历");
???????????row1.CreateCell(14).SetCellValue("专业");
???????????row1.CreateCell(15).SetCellValue("毕业学校");
???????????row1.CreateCell(16).SetCellValue("个人手机");
???????????row1.CreateCell(17).SetCellValue("家庭座机");
???????????row1.CreateCell(18).SetCellValue("QQ号");
???????????row1.CreateCell(19).SetCellValue("通信地址");
???????????row1.CreateCell(20).SetCellValue("邮编");
???????????row1.CreateCell(21).SetCellValue("技术评价");
???????????row1.CreateCell(22).SetCellValue("班主任评价");
???????????row1.CreateCell(23).SetCellValue("备注");

???????????for (int i = 0; i < stuList.Count; i++)
???????????{
???????????????NPOI.SS.UserModel.IRow stuRows = sheet1.CreateRow(i + 1);
???????????????stuRows.CreateCell(0).SetCellValue(stuList[i].School_Name);
???????????????stuRows.CreateCell(1).SetCellValue(stuList[i].SC_Name);
???????????????stuRows.CreateCell(2).SetCellValue(stuList[i].TC_Name);
???????????????stuRows.CreateCell(3).SetCellValue(stuList[i].School_Code);
???????????????stuRows.CreateCell(4).SetCellValue(i + 1);
???????????????stuRows.CreateCell(5).SetCellValue(stuList[i].Student_NO);
???????????????stuRows.CreateCell(6).SetCellValue(stuList[i].Student_Name);
???????????????stuRows.CreateCell(7).SetCellValue(stuList[i].Student_NameSpell);
???????????????stuRows.CreateCell(8).SetCellValue(stuList[i].Student_Sex);
???????????????stuRows.CreateCell(9).SetCellValue(stuList[i].Student_IdentityNumber);
???????????????stuRows.CreateCell(10).SetCellValue(stuList[i].SC_ID.ToString());
???????????????stuRows.CreateCell(11).SetCellValue(stuList[i].Student_State);
???????????????stuRows.CreateCell(12).SetCellValue(stuList[i].Student_Exam);
???????????????stuRows.CreateCell(13).SetCellValue(stuList[i].Student_Education);
???????????????stuRows.CreateCell(14).SetCellValue(stuList[i].Student_Specialty);
???????????????stuRows.CreateCell(15).SetCellValue(stuList[i].Student_Schoolofgraduation);
???????????????stuRows.CreateCell(16).SetCellValue(stuList[i].Student_PersonalTel);
???????????????stuRows.CreateCell(17).SetCellValue(stuList[i].Student_FamilyTel);
???????????????stuRows.CreateCell(18).SetCellValue(stuList[i].Student_QQ);
???????????????stuRows.CreateCell(19).SetCellValue(stuList[i].Student_Address);
???????????????stuRows.CreateCell(20).SetCellValue(stuList[i].Student_PostCode);
???????????????stuRows.CreateCell(21).SetCellValue(stuList[i].Student_Evaluate1);
???????????????stuRows.CreateCell(22).SetCellValue(stuList[i].Student_Evaluate2);
???????????????stuRows.CreateCell(23).SetCellValue(stuList[i].Student_Remark);
???????????}

???????????FileStream fs = new FileStream(Server.MapPath("..\\创建的文件夹名\\" + stuList.Count + ".xls"), FileMode.Create);
???????????book.Write(fs);
???????????fs.Close();
???????????Response.Write("..\\创建的文件夹名\\" + stuList.Count + ".xls");
???????}
???}
}

导入 NPOI文件
找到 NPOI文件导入到bin目录下然后引用

asp.net中导入导出Excel

原文地址：https://www.cnblogs.com/yjm8023/p/9295995.html