asp.net 将Excel数据导入到GridView和SQL数据库

 

using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;

namespace WebApplication1
{
    public partial class WebForm2 : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {

        }

        #region 连接Excel  读取Excel数据   并返回DataSet数据集合
        /// <summary>
        /// 连接Excel  读取Excel数据   并返回DataSet数据集合
        /// </summary>
        /// <param name="filepath">Excel服务器路径</param>
        /// <param name="tableName">Excel表名称</param>
        /// <returns></returns>
        public static System.Data.DataSet ExcelSqlConnection(string filepath, string tableName)
        {
            string strCon = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + filepath + ";Extended Properties='Excel 8.0;HDR=YES;IMEX=1'";
            OleDbConnection ExcelConn = new OleDbConnection(strCon);
            try
            {
                string strCom = string.Format("SELECT * FROM [Sheet1$]");
                ExcelConn.Open(); //打开数据链接，得到一个数据集
                OleDbDataAdapter myCommand = new OleDbDataAdapter(strCom, ExcelConn);
                DataSet ds = new DataSet(); //创建dataset对象
                myCommand.Fill(ds, "[" + tableName + "$]");
                ExcelConn.Close();
                return ds;
            }
            catch
            {

                ExcelConn.Close();
                return null;
            }
        }
        #endregion

        #region 导入的execl
        protected void Button2_Click(object sender, EventArgs e)
        {
            SqlConnection cn = new BSqlDataProvider().GetSqlConnection();
            cn.Open();
            if (FileUpload1.HasFile == false)//HasFile用来检查FileUpload是否有指定文件
            {
                Response.Write("<script>alert('请您选择Excel文件')</script> ");
                return;//当无文件时,返回
            }
            string IsXls = System.IO.Path.GetExtension(FileUpload1.FileName).ToString().ToLower();//System.IO.Path.GetExtension获得文件的扩展名
            if (IsXls != ".xls")
            {
                Response.Write("<script>alert('只可以选择Excel文件')</script>");
                return;//当选择的不是Excel文件时,返回
            }
            string filename = FileUpload1.FileName;              //获取Execle文件名  DateTime日期函数
            string savePath = Server.MapPath(("~\\upfiles\\") + filename);//Server.MapPath 获得虚拟服务器相对路径
            FileUpload1.SaveAs(savePath);                        //SaveAs 将上传的文件内容保存在服务器上
            DataSet ds = ExcelSqlConnection(savePath, filename);           //调用自定义方法
            DataRow[] dr = ds.Tables[0].Select();            //定义一个DataRow数组
            int rowsnum = ds.Tables[0].Rows.Count;
            if (rowsnum == 0)
            {
                Response.Write("<script>alert('Excel表为空表,无数据!')</script>");   //当Excel表为空时,对用户进行提示
            }
            else
            {
                for (int i = 0; i < dr.Length; i++)
                {
                    string spdm = dr[i]["商品代码"].ToString();//日期 excel列名【名称不能变,否则就会出错】
                    string jijie = dr[i]["季节"].ToString();
                    string boduan = dr[i]["波段"].ToString();
                    string s_chan = dr[i]["生产商"].ToString();
                    string f_shi = dr[i]["方式"].ToString();
                    string c_ku = dr[i]["仓库"].ToString();
                    string insertstr = "insert into AA_ANSD values('" + spdm + "','" + jijie + "','" + boduan + "','" + s_chan + "','" + f_shi + "','" + c_ku + "')";
                    SqlCommand cmd = new SqlCommand(insertstr, cn);
                    try
                    {
                        cmd.ExecuteNonQuery();
                    }
                    catch (MembershipCreateUserException ex)       //捕捉异常
                    {
                        Response.Write("<script>alert('导入内容:" + ex.Message + "')</script>");
                    }

                }
                Response.Write("<script>alert('Excle表导入成功!');location='CMT_Entry.aspx?CMD=0'</script>");
            }

            cn.Close();

        }
        #endregion

   
   
   
    }
}