在asp.net中的WEB程序的設置中我們必須用到Web.config來存儲數據庫連接字.事實上這是個很好的做法,因為可以省去我們很多的麻煩還可以幫助我們避免不必要的錯位,是的很多情況下我就是這樣做.它通過XML來記錄這些信息.具體的是在....這個標記中來記錄的.這裡請看一個ORACLE的例子如下:
<appSettings>
<add key="ORACLEConnectionString" value="Provider=OraOLEDB.Oracle.1;
Persist Security Info=False;Password=blah;User ID=greg;Data Source=sph;" />
<add key="SQLConnectionString" value="data source=SQL1;initial catalog=ID_V;
integrated security=SSPI;persist security info=False;workstation id=TH03D374;
packet size=4096"/>
<appSettings>
而在你的應用程序中你只要這樣寫,就可以了,如下:
string conn = ConfigurationSettings.AppSettings["ORACLEConnectionString"];
OleDbConnection myConnection = new OleDbConnection(conn);
很輕松是嗎?不必每次都輸入同樣的連接字,也不要記住那些討厭的信息了,只需要起一個好記的名字就可以.好了下面我在來給出其他的一些連接字:
MYSQL的連接字:
ConnectionString = "Data Source=localhost;" +
"Database=mySQLDatabase;" +
"User ID=myUsername;" +
"Password=myPassword;" +
"Command Logging=false";
OLE DB的:
IBM AS/400 OLE DB 的
' VB.NET
Dim oOleDbConnection As OleDb.OleDbConnection
Dim sConnString As String = _
"Provider=IBMDA400.DataSource.1;" & _
"Data source=myAS400DbName;" & _
"User Id=myUsername;" & _
"Password=myPassword"
oOleDbConnection = New OleDb.OleDbConnection(sConnString)
oOleDbConnection.Open()
JET OLE DB 的
' VB.NET
Dim oOleDbConnection As OleDb.OleDbConnection
Dim sConnString As String = _
"Provider=Microsoft.Jet.OLEDB.4.0;" & _
"Data Source=C:/myPath/myJet.mdb;" & _
"User ID=Admin;" & _
"Password="
oOleDbConnection = New OleDb.OleDbConnection(sConnString)
oOleDbConnection.Open()
Oracle OLE DB 的
' VB.NET
Dim oOleDbConnection As OleDb.OleDbConnection
Dim sConnString As String = _
"Provider=OraOLEDB.Oracle;" & _
"Data Source=MyOracleDB;" & _
"User ID=myUsername;" & _
"Password=myPassword"
oOleDbConnection = New OleDb.OleDbConnection(sConnString)
oOleDbConnection.Open()
SQL Server OLE DB 的
' VB.NET
Dim oOleDbConnection As OleDb.OleDbConnection
Dim sConnString As String = _
"Provider=sqloledb;" & _
"Data Source=myServerName;" & _
"Initial Catalog=myDatabaseName;" & _
"User Id=myUsername;" & _
"Password=myPassword"
oOleDbConnection = New OleDb.OleDbConnection(sConnString)
oOleDbConnection.Open()
Sybase ASE OLE DB 的
' VB.NET
Dim oOleDbConnection As OleDb.OleDbConnection
Dim sConnString As String = _
"Provider=Sybase ASE OLE DB Provider;" & _
"Data Source=MyDataSourceName;" & _
"Server Name=MyServerName;" & _
"Database=MyDatabaseName;" & _
"User ID=myUsername;" & _
"Password=myPassword"
oOleDbConnection = New OleDb.OleDbConnection(sConnString)
oOleDbConnection.Open()
SQL Server在System.Data.SqlClient
SqlConnection oSQLConn = new SqlConnection();
oSQLConn.ConnectionString = "Data Source=(local);" +
"Initial Catalog=mySQLServerDBName;" +
"Integrated Security=SSPI";
oSQLConn.Open();
這裡都是用VB.NET寫的，希望能對用VB寫ASP.NET的朋友一點幫助.
