使用组件封装ASP的数据库操作

大家在书写asp程序时，最担心的可能就是数据库的连接信息，会被一些人看到，进行一些破坏。下面我们用vb6.0来做一个动态链接库(.dll)来隐藏数据库的连接信息。

启动vb6.0，新建-->Active dll工程。单击"工程"-->引用,选择"microsoft active server pages object library"

和"microsoft activeX data objects 2.1 library"两项。将类模块的名称改为dcss.将工程的名称改为yygwy.保存工程文件yygwy.vbp和类文件dcss.cls。

在dcss.cls中写入:

Private myscriptingcontext As ScriptingContext

Private myapplication As Application

Private myrequest As Request

Private myresponse As Response

Private myserver As Server

Private mysession As Session

Public Sub onstartpage(passedscriptingcontext As ScriptingContext)

Set myscriptingcontext = passedscriptingcontext

Set myapplication = myscriptingcontext.Application

Set myrequest = myscriptingcontext.Request

Set myresponse = myscriptingcontext.Response

Set myserver = myscriptingcontext.Server

Set mysession = myscriptingcontext.Session

End Sub

Public Sub onendpage()

Set myscriptingcontext = Nothing

Set myapplication = Nothing

Set myrequest = Nothing

Set myresponse = Nothing

Set myserver = Nothing

Set mysession = Nothing

End Sub

'以上语句是必须的。

'定义两个公有函数

Public Function datasource() As Variant

datasource = "driver={sql server};server=yang;uid=sa;pwd=; database=dcss"

End Function

编译生成dcss.dll文件。注册regsvr32 路径\dcss.dll。

用visual interdev打开global.asa文件.当然了，你也可以在其它文件中使用。

set dcss=server.CreateObject("yygwy.dcss")

oconn=dcss.datasource()

application("strconn")=oconn

在其它的页面中如下调用即可：

set objConn = Server.CreateObject("ADODB.Connection")

objConn.Open application("strconn")