Excel批量导数据到SQLServer

         string filepath = @"D:\data.xlsx";

          string strConn = "Provider=Microsoft.Ace.OleDb.12.0;Persist Security Info=False;" + "data source=" +
                           filepath + ";Extended Properties=‘Excel 12.0; HDR=yes; IMEX=2‘";

          OleDbConnection con = new OleDbConnection(strConn);

          string excelsql = "select  * from [data$]";

          OleDbDataAdapter da = new OleDbDataAdapter(excelsql, con);

          DataSet ds = new DataSet();

          da.Fill(ds);

          Console.WriteLine(ds.Tables.Count);

          Console.WriteLine(ds.Tables[0].Rows.Count);

          string conStr =
             "server=.;database=test;uid=sa;pwd=123";

          Stopwatch wt=new Stopwatch();
          wt.Start();

          using (SqlBulkCopy bulkCopy = new SqlBulkCopy(conStr))
          {

              bulkCopy.DestinationTableName = "_Mobile";

              //加入只加入一個列的話,那么就會其他數據庫列都默認為空。

              bulkCopy.ColumnMappings.Add("mobile", "Mobile"); 

              bulkCopy.BulkCopyTimeout = 60 * 20;

              bulkCopy.BatchSize = 100;

              bulkCopy.NotifyAfter = 100;

              bulkCopy.WriteToServer(ds.Tables[0]);

          }
          wt.Stop();

          Console.WriteLine("Time:>>"+wt.ElapsedMilliseconds/1000+"s");