如何实现将excel表(含多张数据库表)导入数据库(sqlserver) _数据库技巧

前几天，一直在网上搜索资料，想实现这个功能，都没找到我想要的结果，最后只要自己想办法实现了
害怕忘记，把它贴出来，以便以后使用，也给需要这个功能的人提供点思路：
大体思路是：将EXCEL的数据提出放在数据集中，在过循环将主表数据插入，在通过循环将从表插入：
代码如下：

private void button1_Click(object sender, System.EventArgs e)
{
//选择文件
  ofdSelectExcel.Filter = “Excel Files(*.xls)|*.xls”;
  ofdSelectExcel.RestoreDirectory = true;
  if( ofdSelectExcel.ShowDialog() == DialogResult.OK )
  {
 if ( ofdSelectExcel.FileName.Trim().Length == 0)
 {
   MessageBox.Show(this,”Please select a excel file first!”);
   return;
 }
 else
 {
  ImportExcelToSqlServer(ofdSelectExcel.FileName.Trim());
 }
       
 }
}

********************************************************
提取数据
public  void ImportExcelToSqlServer(string fileName)
{
 if (fileName == null)
 {
  throw new ArgumentNullException(“filename string is null!”);
 }

 if (fileName.Length == 0)
 {
  throw new ArgumentException(“filename string is empty!”);
 }

 string oleDBConnString = String.Empty;
 oleDBConnString = “Provider=Microsoft.Jet.OLEDB.4.0;”;
 oleDBConnString += “Data Source=”;
 oleDBConnString += fileName;
 oleDBConnString += “;Extended Properties=Excel 8.0;”;

 
 OleDbConnection oleDBConn = null;
 OleDbDataAdapter oleAdMaster = null;
 DataTable m_tableName=new DataTable();;
 DataSet ds=new DataSet();
 try
 {
    oleDBConn = new OleDbConnection(oleDBConnString);
    oleDBConn.Open();
    m_tableName=oleDBConn.GetOleDbSchemaTable(OleDbSchemaGuid.Tables,null);
  
    if (m_tableName != null && m_tableName.Rows.Count > 0)
    {

  m_tableName.TableName =m_tableName.Rows[0][“TABLE_NAME”].ToString();

    }
  string sqlMaster;
  sqlMaster=” SELECT *  FROM [“+m_tableName+”]”;
  oleAdMaster=new OleDbDataAdapter(sqlMaster,oleDBConn);
  oleAdMaster.Fill(ds,”m_tableName”);
   
  MailRebateManager manger=new MailRebateManager();
  bool isSucess=manger.AddExceLGmailRebate(ds.Tables[“m_tableName”],ApplicationVariable.HomeCompanyID);
  if(isSucess)
  {
   MessageBox.Show(“Manipulate Succs!”);
  }
  else
  {
    MessageBox.Show(“Manipulate Failed”);
  }
 }
 catch(Exception ex)
 {
    MessageBox.Show(ex.Message);
    SimpleLogger.Log(ex);
  try
  {

  }
  catch (OleDbException e)
  {
   SimpleLogger.Log(e);
         MessageBox.Show(“An exception of type ” + e.GetType() +”);
  }
 }

   
}
*****************************************
将数据进行处理分别插入主表和从表
public bool AddExceLGmailRebate(DataTable tb,string homeCompanyID)
{
bool ret=false;
SqlConnection con=null;
         
DataTable table=new DataTable();
table=tb;
  
string sConn = PublicManager.GetDBConnectionString(homeCompanyID);
con=new SqlConnection();
con.ConnectionString=sConn;
  
SqlTransaction tran=null;
SqlCommand com=null;
SqlCommand comm=null;
 
try
{
con.Open();
tran = con.BeginTransaction();
  
 if (table != null && table.Rows.Count > 0)
 {
    
 for(int i=1;i<table.Rows.Count;i++)
 {
     
 string m_PromoCode=Convert.ToString(table.Rows[i][0]);
 if(m_PromoCode==””)
 {
  m_PromoCode=Convert.ToString(table.Rows[i-1][0]);
 }
 if(m_PromoCode.Length>50 )
 {
  m_PromoCode=m_PromoCode.Substring(0,50);
 }

 string m_ItemDescription=Convert.ToString(table.DefaultView[i][1]);
 if(m_ItemDescription.IndexOf(“(“)>0)
 {
 int num=m_ItemDescription.IndexOf(“(“);
 m_ItemDescription=m_ItemDescription.Substring(0,num);
 if(m_ItemDescription.Length>50)
 {
  m_ItemDescription=m_ItemDescription.Substring(0,50);
 }
      
 }
 if(m_ItemDescription.Length>50)
 {
  m_ItemDescription=m_ItemDescription.Substring(0,50);
 }

  string begin=Convert.ToString(table.DefaultView[i][2]);
  string m_BeginPromoPeriodDate;
  string m_EndPromoPeriodEndDate;
  if(begin==””)
  {
   continue;
  }
  else
  {
   string beginTime=begin.Substring(0,8);
   beginTime=beginTime.Replace(“/”,”-“);
   m_BeginPromoPeriodDate=beginTime;
   string endTime=begin.Substring(begin.Length-8);
   endTime=endTime.Replace(“/”,”-“);
   m_EndPromoPeriodEndDate=endTime;
  }

  string m_RebateAmountStr=Convert.ToString(table.DefaultView[i][3]);
  if(m_RebateAmountStr.Length >9)
  {
   m_RebateAmountStr=m_RebateAmountStr.Substring(0,9);
  }
  decimal m_RebateAmount;
  if(m_RebateAmountStr==””)
  {
   m_RebateAmount=0;
  }
  else
  {
   m_RebateAmount= Convert.ToDecimal(m_RebateAmountStr);
  }

 string m_TotalSoldStr=Convert.ToString(table.DefaultView[i][7]);
 if(m_TotalSoldStr.Length >4)
 {
  m_TotalSoldStr=m_TotalSoldStr.Substring(0,4);
 }
  int m_TotalSold;
  if(m_TotalSoldStr==””)
  {
   m_TotalSold=0;
  }
  else
  {
   m_TotalSold=Convert.ToInt32(m_TotalSoldStr);
  }

  string m_RebateReserveStr=Convert.ToString(table.DefaultView[i][8]);
  if(m_RebateReserveStr.Length>9)
  {
   m_RebateReserveStr=m_RebateReserveStr.Substring(0,9);
  }
  decimal m_RebateReserve;
  if(m_RebateReserveStr==””)
  {
          m_RebateReserve=0;
  }
  else
  {
   m_RebateReserve=Convert.ToDecimal(m_RebateReserveStr);
         
  }

  string m_RedeemedStr=Convert.ToString(table.DefaultView[i][17]);
  if(m_RedeemedStr.Length >8)
  {
   m_RedeemedStr=m_RedeemedStr.Substring(0,8);
  }
  decimal m_Redeemed;
  if(m_RedeemedStr==””)
  {
   m_Redeemed=0;
  }
  else
  {
   m_Redeemed=Convert.ToDecimal(m_RedeemedStr);
  }
  string m_PromoItem=Convert.ToString(table.DefaultView[i][23]);
  if(m_PromoItem.Length >50)
  {
   m_PromoItem=m_PromoItem.Substring(0,50);
  }

  DateTime m_InDate;
  m_InDate=DateTime.Now;
      
  string m_sqlMaster=”INSERT INTO act.dbo.Newegg_GMailRebate(PromoCode,PromoItem,RebateAmount,ItemDescription,BeginPromoPeriodDate,
EndPromoPeriodEndDate,PostMaskDate,TotalSold,RebateReserve,Redeemed,InDate)VALUES(“+m_PromoCode+”,”+m_PromoItem+”,”+m_RebateAmount+”,
“+m_ItemDescription+”,”+m_BeginPromoPeriodDate+”,”+m_EndPromoPeriodEndDate+”,
“+m_InDate+”,”+m_TotalSold+”,”+m_RebateReserve+”,”+m_Redeemed+”,”+m_InDate+”)”;
  comm=new SqlCommand(m_sqlMaster,con);
  comm.Transaction =tran;
  comm.ExecuteNonQuery ();
  comm.Dispose();
     
  }
     
    
  for(int i=1;i<table.Rows.Count;i++)
  {
     
   string m_PromoCode=Convert.ToString(table.Rows[i][0]);
   if(m_PromoCode==””)
   {
    continue;
   }
   int  m_PromoCodeTransactionID=GetMasterTransactionID(m_PromoCode,homeCompanyID);
     
   string m_InvoiceNumber=Convert.ToString(table.Rows[i][4]);
   if(m_InvoiceNumber.Length >30)
   {
   m_InvoiceNumber=m_InvoiceNumber.Substring(0,30);
   }
   if(m_InvoiceNumber==””)
   {
    m_InvoiceNumber=”0″;
   }

   string m_InvoiceDate=Convert.ToString(table.DefaultView[i][6]);
   if(m_InvoiceDate==””)
   {
    DateTime m_InDate;
    m_InDate=DateTime.Now;
    m_InvoiceDate=Convert.ToString(m_InDate);
   }

   string m_serialNumberStr=Convert.ToString(table.Rows[i][5]);
   if(m_serialNumberStr.Length >4)
   {
    m_serialNumberStr=m_serialNumberStr.Substring(0,4);
   }
   if(m_serialNumberStr==””)
   {
    m_serialNumberStr=”0″;
   }
   int  m_serialNumber=Convert.ToInt32(m_serialNumberStr);
     
     
   string m_TotalValidStr=Convert.ToString( table.DefaultView[i][9]);
   if(m_TotalValidStr.Length >4)
   {
    m_TotalValidStr=m_TotalValidStr.Substring(0,4);
  
                        }
   if(m_TotalValidStr==””)
   {
    m_TotalValidStr=”0″;
   }
   int m_TotalValid=Convert.ToInt32 (m_TotalValidStr);

   string m_TotalInValidStr=Convert.ToString( table.DefaultView[i][10]);
   if(m_TotalInValidStr.Length >4)
   {
    m_TotalInValidStr=m_TotalInValidStr.Substring(0,4);
   }
   if(m_TotalInValidStr==””)
   {
    m_TotalInValidStr=”0″;
   }
   int m_TotalInValid=Convert.ToInt32(m_TotalInValidStr);
     

   string m_ProcessFeeStr=Convert.ToString(table.DefaultView[i][13]);
   if(m_ProcessFeeStr.Length >9)
   {
    m_ProcessFeeStr=m_ProcessFeeStr.Substring(0,9);
   }
   if(m_ProcessFeeStr==””)
   {
    m_ProcessFeeStr=”0″;
   }
   decimal m_ProcessFee=Convert.ToDecimal(m_ProcessFeeStr);

   string m_sqlDetails=”INSERT INTO act.dbo.Newegg_GMailExcelMaster(PromoCodeTransactionID,InvoiceNumber,InvoiceDate,SerialNumber,
TotalValid,TotalInvalid,ProcessFee)VALUES(“+m_PromoCodeTransactionID+”,”+m_InvoiceNumber+”,”+m_InvoiceDate+”,
“+m_serialNumber+”,”+m_TotalValid+”,”+m_TotalInValid+”,”+m_ProcessFee+”)”;
   com=new SqlCommand(m_sqlDetails,con);
   com.CommandTimeout=60;
   com.Transaction =tran;
   com.ExecuteNonQuery();
   com.Dispose();
   m++;
   }
   tran.Commit();

   ret=true;

  }
  
  }
  catch(Exception ex)
  {
   
  try
  {
   tran.Rollback();
  }
  catch (SqlException e)
  {
   if (tran.Connection != null)
   {
    MessageBox.Show(“An exception of type ” + e.GetType() +”);
   }
   }
   MessageBox.Show(“Error come up row number:”+m.ToString());
   MessageBox.Show(“Error details:”+ex.Message);
   SimpleLogger.Log(ex);
   ret=false;
  }
  finally
  {
   con.Close();
   con.Dispose();
   
  }
  return ret;

  }

出处：成都DotNet俱乐部专栏(kim)