Excel导入SQLServer的三种方案

//方案一：通过OleDB方式获取Excel文件的数据，然后通过DataSet中转到SQL ServeropenFileDialog = new OpenFileDialog();openFileDialog.Filter = "Excel files(*.xls)|*.xls";if(openFileDialog.ShowDialog()==DialogResult.OK){FileInfo fileInfo = new FileInfo(openFileDialog.FileName);string filePath = fileInfo.FullName;string connExcel = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + filePath + ";Extended Properties=Excel 8.0";try{OleDbConnection oleDbConnection = new OleDbConnection(connExcel);oleDbConnection.Open();//获取excel表DataTable dataTable = oleDbConnection.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, null);//获取sheet名，其中[0][1]...[N]: 按名称排列的表单元素string tableName = dataTable.Rows[0][2].ToString().Tri m();tableName = "[" + tableName.Replace("'","") + "]";//利用SQL语句从Excel文件里获取数据//string query = "SELECT classDate,classPlace,classTeacher,classTitle,classID FROM " + tableName;string query = "SELECT 日期,开课城市,讲师,课程名称,持续时间FROM " + tableName;dataSet = new DataSet();//OleDbCommand oleCommand = new OleDbCommand(query, oleDbConnection);//OleDbDataAdapter oleAdapter = new OleDbDataAdapter(oleCommand);OleDbDataAdapter oleAdapter = new OleDbDataAdapter(query,connExcel);oleAdapter.Fill(dataSet,"gch_Class_Info");//dataGrid1.DataSource = dataSet;//dataGrid1.DataMember = tableName;dataGrid1.SetDataBinding(dataSet,"gch_Class_Info");//从excel文件获得数据后，插入记录到SQL Server的数据表DataTable dataTable1 = new DataTable();SqlDataAdapter sqlDA1 = new SqlDataAdapter(@"SELECT classID, classDate,classPlace, classTeacher, classTitle, durativeDate FROM gch_Class_Info",sqlConnection1);SqlCommandBuilder sqlCB1 = new SqlCo mmandBuilder(sqlDA1);sqlDA1.Fill(dataTable1);foreach(DataRow dataRow in dataSet.Tables["gch_Class_Info"].Rows){DataRow dataRow1 = dataTable1.NewRow();dataRow1["classDate"] = dataRow["日期"];dataRow1["classPlace"] = dataRow["开课城市"];dataRow1["classTeacher"] = dataRow["讲师"];dataRow1["classTitle"] = dataRow["课程名称"];dataRow1["durativeDate"] = dataRow["持续时间"];dataTable1.Rows.Add(dataRow1);}Console.WriteLine("新插入" + dataTable1.Rows.Count.ToString() + " 条记录");sqlDA1.Update(dataTable1);oleDbConnection.Close();}catch(Exception ex){Console.WriteLine(ex.ToString());}}//方案二：直接通过SQL语句执行SQL Server的功能函数将Excel文件转换到SQL Server数据库OpenFileDialog openFileDialog = new OpenFileDialog();openFileDialog.Filter = "Excel files(*.xls)|*.xls";SqlConnection sqlConnection1 = null;if(openFileDialog.ShowDialog()==DialogResult.OK){string filePath = openFileDialog.FileName;sqlConnection1 = new SqlConnection();sqlConnection1.ConnectionString = "server=(local);integrated security=SSPI;initial catalog=Library";//import excel into SQL Server 2000/*string importSQL = "SELECT * into live41 FROM OpenDataSource" +"('Microsoft.Jet.OLEDB.4.0','Data Source=" + "\"" + "E:\\022n.xls" + "\"" +"; User ID=;Password=; Extended properties=Excel 5.0')...[Sheet1$]";*///export SQL Server 2000 into excelstring exportSQL = @"E XEC master..xp_cmdshell'bcp Library.dbo.live41 out " + filePath + "-c -q -S" + "\"" + "\"" +" -U" + "\"" + "\"" + " -P" + "\"" + "\"" + "\'";try{sqlConnection1.Open();//SqlCommand sqlCommand1 = new SqlCommand();//sqlCommand1.Connection = sqlConnection1;//mandText= importSQL;//sqlCommand1.ExecuteNonQuery();//MessageBox.Show("import finish!");SqlCommand sqlCommand2 = new SqlCommand();sqlCommand2.Connection = sqlConnection1;sqlCommand2.Co mmandText = exportSQL;sqlCommand2.ExecuteNonQuery();MessageBox.Show("export finish!");}catch(Exception ex){MessageBox.Show(ex.ToString());}}if(sqlConnection1!=null){sqlConnection1.Close();sqlConnection1 = null;}//方案三：通过到入Excel的VBA dll，通过VBA接口获取E xcel数据到DataSetOpenFileDialog openFile = new OpenFileDialog(); openFile.Filter = "Excel files(*.xls)|*.xls";ExcelIO excelio = new ExcelIO();if(openFile.ShowDialog()==DialogResult.OK){if(excelio!=null)excelio.Close();excelio = new ExcelIO(openFile.FileName);object[,] range = excelio.GetRange();excelio.Close();DataSet ds = new DataSet("xlsRange");int x = range.GetLength(0);int y = range.GetLength(1);DataTable dt = new DataTable("xlsTable"); DataRow dr;DataColumn dc;ds.Tables.Add(dt);for(int c=1; c<=y; c++){dc = new DataColumn();dt.Columns.Add(dc);}object[] temp = new object[y];for(int i=1; i<=x; i++){dr = dt.NewRow();for(int j=1; j<=y; j++){temp[j-1] = range[i,j];}dr.ItemArray= temp;ds.Tables[0].Rows.Add(dr);}dataGrid1.SetDataBinding(ds,"xlsTable");if(excelio!=null)excelio.Close();}。