如何实现将Excel表(含多张数据库表)导入数据库(SQLServer)

dn001 2009-06-08 15:12:43

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)