C# Excel导入到sql
将Excel文件数据库导入SQL Server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 Server
openFileDialog = 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().Trim();
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
SqlCommandBuilder(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
excel
string exportSQL = @"EXEC
master..xp_cmdshell
‘bcp Library.dbo.live41 out " + filePath + "-c -q -S" +
"\"" + "\"" +
" -U" + "\"" +
"\"" + " -P" + "\"" + "\"" +
"\‘";
try
{
sqlConnection1.Open();
//SqlCommand sqlCommand1 = new
SqlCommand();
//sqlCommand1.Connection =
sqlConnection1;
//sqlCommand1.CommandText =
importSQL;
//sqlCommand1.ExecuteNonQuery();
//MessageBox.Show("import
finish!");
SqlCommand sqlCommand2 = new
SqlCommand();
sqlCommand2.Connection =
sqlConnection1;
sqlCommand2.CommandText =
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Excel数据到DataSet
OpenFileDialog 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();
}
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