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private DataSet ImportExcelToDataSet(string virtualPath, string sqlQueryStatement)
    {
        string excelConnectionString = DB.ExcelConnectionString(Server.MapPath(virtualPath));
        OleDbConnection dc = new OleDbConnection(excelConnectionString);
        OleDbDataAdapter da = new OleDbDataAdapter(sqlQueryStatement, dc);
        DataSet ds = new DataSet();
        da.Fill(ds);
        return ds;
    }

try
        {
            string cs = ConfigurationManager.ConnectionStrings["InsusSqlConnectionString"].ConnectionString;
            using (SqlConnection sqlConn = new SqlConnection(cs))
            {
                string sqlQueryStatement = "SELECT [Material],[Plnt],[Level],[Item],[Component],[Object description] FROM [Sheet1$]";
                string virtualPath = "~/App_Data/Book1.xlsx";

                DataSet ds = ImportExcelToDataSet(virtualPath, sqlQueryStatement);

                DataTable dt = ds.Tables[0];

                sqlConn.Open();
                using (SqlBulkCopy sqlbc = new SqlBulkCopy(sqlConn))
                {
                    sqlbc.DestinationTableName = "BOM";
                    sqlbc.ColumnMappings.Add("Material", "Material");
                    sqlbc.ColumnMappings.Add("Plnt", "Plnt");
                    sqlbc.ColumnMappings.Add("Level", "Level");
                    sqlbc.ColumnMappings.Add("Item", "Item");
                    sqlbc.ColumnMappings.Add("Component", "Component");
                    sqlbc.ColumnMappings.Add("Object description", "Object description");
                    sqlbc.WriteToServer(dt);
                    Response.Write("數(shù)據導入成功！");
                }
            }
        }
        catch (Exception ex)
        {
            throw ex;
        }

private OleDbDataReader ImportExcelToDataReader(string virtualPath, string sqlQueryStatement)
    {
        string excelConnectionString = DB.ExcelConnectionString(Server.MapPath(virtualPath));
        OleDbConnection oleConn = new OleDbConnection(excelConnectionString);
        OleDbCommand oleComm = new OleDbCommand(sqlQueryStatement, oleConn);

        oleConn.Open();
        return oleComm.ExecuteReader();
    }

 string sqlQueryStatement = "SELECT [Material],[Plnt],[Level],[Item],[Component],[Object description] FROM [Sheet1$]";
        string virtualPath = "~/App_Data/Book1.xlsx";

        string cs = ConfigurationManager.ConnectionStrings["InsusSqlConnectionString"].ConnectionString;
        SqlConnection sqlConn = new SqlConnection(cs);

        OleDbDataReader reader = ImportExcelToDataReader(virtualPath, sqlQueryStatement);

        using (SqlBulkCopy bulkCopy = new SqlBulkCopy(sqlConn))
        {
            bulkCopy.DestinationTableName = "BOM";
            try
            {
                sqlConn.Open();
                bulkCopy.WriteToServer(reader);
                Response.Write("數(shù)據導入成功。");
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
            }
            finally
            {
                reader.Close();
                sqlConn.Close();
            }
        }