数据库连接字在Web.config里的用法

1年前 (2024-04-22)

在asp网站站点" rel="nofollow" /> <addkey="SQLConnectionString"value="datasource=SQL1;initialcatalog=ID_V;
integratedsecurity=SSPI;persistsecurityinfo=False;workstationid=TH03D374;
packetsize=4096"/>
<appSettings>

而在你的应用程序中你只要这样写,就可以了,如下:

stringconn=ConfigurationSettings.AppSettings["ORACLEConnectionString"];
OleDbConnectionmyConnection=newOleDbConnection(conn);

很轻松是吗?不必每次都输入同样的连接字,也不要记住那些讨厌的信息了,只需要起一个好记的

名字就可以.

好了下面我在来给出其他的一些连接字

MYSQL的连接字:
ConnectionString="DataSource=localhost;"+
"Database=mySQLDatabase;"+
"UserID=myUsername;"+
"Password=myPassword;"+
"CommandLogging=false";
OLEDB的:
IBMAS/400OLEDB的

'VB.NET
DimoOleDbConnectionAsOleDb.OleDbConnection
DimsConnStringAsString=_
"Provider=IBMDA400.DataSource.1;"&_
"Datasource=myAS400DbName;"&_
"UserId=myUsername;"&_
"Password=myPassword"
oOleDbConnection=NewOleDb.OleDbConnection(sConnString)
oOleDbConnection.Open()

JETOLEDB的

'VB.NET
DimoOleDbConnectionAsOleDb.OleDbConnection
DimsConnStringAsString=_
"Provider=Microsoft.Jet.OLEDB.4.0;"&_
"DataSource=C:\myPath\myJet.mdb;"&_
"UserID=Admin;"&_
"Password="
oOleDbConnection=NewOleDb.OleDbConnection(sConnString)
oOleDbConnection.Open()

OracleOLEDB的

'VB.NET
DimoOleDbConnectionAsOleDb.OleDbConnection
DimsConnStringAsString=_
"Provider=OraOLEDB.Oracle;"&_
"DataSource=MyOracleDB;"&_
"UserID=myUsername;"&_
"Password=myPassword"
oOleDbConnection=NewOleDb.OleDbConnection(sConnString)
oOleDbConnection.Open()

SQLServerOLEDB的

'VB.NET
DimoOleDbConnectionAsOleDb.OleDbConnection
DimsConnStringAsString=_
"Provider=sqloledb;"&_
"DataSource=myServerName;"&_
"InitialCatalog=myDatabaseName;"&_
"UserId=myUsername;"&_
"Password=myPassword"
oOleDbConnection=NewOleDb.OleDbConnection(sConnString)
oOleDbConnection.Open()

SybaseASEOLEDB的

'VB.NET
DimoOleDbConnectionAsOleDb.OleDbConnection
DimsConnStringAsString=_
"Provider=SybaseASEOLEDBProvider;"&_
"DataSource=MyDataSourceName;"&_
"ServerName=MyServerName;"&_
"Database=MyDatabaseName;"&_
"UserID=myUsername;"&_
"Password=myPassword"
oOleDbConnection=NewOleDb.OleDbConnection(sConnString)
oOleDbConnection.Open()

SQLServer在System.Data.SqlClient

SqlConnectionoSQLConn=newSqlConnection();
oSQLConn.ConnectionString="DataSource=(local);"+
"InitialCatalog=mySQLServerDBName;"+
"IntegratedSecurity=SSPI";
oSQLConn.Open();