net下excel（.xls）导入sqlserver

1、前台

 <asp:FileUpload ID="FileUpload1" runat="server" Width="305px" />
<asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="导入SQL" /></td>

2、后台

引入空间：

using System.Data.Sql;
using System.Data.SqlClient;
using System.Data.OleDb;
using System.IO;

 

绑定数据源：

 string strConn = @"Data Source=me\SQLEXPRESS;Initial Catalog=table;Integrated Security=True"; //链接SQL数据库

 /// <summary>
    /// 查询EXCEL电子表格添加到DATASET
    /// </summary>
    /// <param name="filenameurl">服务器路径</param>
    /// <param name="table">表名</param>
    public DataSet ExecleDs(string filenameurl, string table)
    {
        string strConn = "Provider=Microsoft.Jet.OleDb.4.0;" + "data source=" + filenameurl + ";Extended Properties='Excel 8.0; HDR=YES; IMEX=1'";
        OleDbConnection conn = new OleDbConnection(strConn);
        conn.Open();
        DataSet ds = new DataSet();
        OleDbDataAdapter odda = new OleDbDataAdapter("select * from [工作表名$]", conn);
        odda.Fill(ds, table);
        return ds;
    }

 

 protected void Button1_Click(object sender, EventArgs e)
    {
        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
        }
        SqlConnection cn = new SqlConnection(strConn);
        cn.Open();
        string filename = DateTime.Now.ToString("yyyymmddhhMMss") + FileUpload1.FileName;              //获取Execle文件名  DateTime日期函数
        string savePath = Server.MapPath(("~\\") + 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 = ExecleDs(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 ID = dr[i]["ID"].ToString();//日期 excel列名【名称不能变,否则就会出错】
                string Subject = dr[i]["Subject"].ToString();//编号 列名 以下类似
                string VerID = dr[i]["VerID"].ToString();
                string Ver = dr[i]["Ver"].ToString();
                 string sqlcheck = "select count(*) from zy_ver where ID='" + ID + "'And Point='" + Point + "'";  //检查是否存在
                SqlCommand sqlcmd = new SqlCommand(sqlcheck, cn);
                int count = Convert.ToInt32(sqlcmd.ExecuteScalar());
                if (count < 1)
                {
                    string insertstr = "insert into zy_ver (ID,Subject,VerID,Ver) values('" + ID + "','" + Subject + "','" + VerID + "','" + Ver + "')";
                    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>");
                    }
                }
                else
                {
                    Response.Write("<script>alert('内容重复！禁止导入');location='importexcel.aspx'</script></script> ");
                    continue;
                }
            }
            Response.Write("<script>alert('Excle表导入成功!');location='importexcel.aspx'</script>");
        }
        cn.Close();
    }