asp调用dll及asp封装dll实例(摘录)

1、打开VB6，新建ActiveX DLL

2、在工程引用中加入Microsoft Active Server Pages Object Library选择

3、填加代码如下：

'Code Start

'声明部分
Private MyScriptingContext As ScriptingContext
Private MyApplication As Application
Private MyRequest As Request
Private MyResponse As Response
Private MyServer As Server
Private MySession As Session

'下面定义公用函数（在VB中访问ASP对象，即在VB中可以用MyApplication等同于ASP中的Application、MyRequest等同于ASP中的Request、 MyResponse等同于ASP中的Response、 MyServer等同于ASP中的Server、 MySession等同于ASP中的Session 使用）

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

'建立自定义函数SayHello

Public Sub SayHello()
MyResponse.Write ("Hello World")
End Sub

'Code End


4、将类名改为：HelloWorld 将工程名改为：TestVBCode

5、生成TestVBCode.DLL文件，并使用Windows运行注册组件命令Regsvr32 路径\TestVBCode.DLL注册后即可使用。（卸载组件命令为Regsvr32 /u 路径\TestVBCode.DLL）

6、建立Test.asp文件，代码如下

<%

'VB自建函数调用格式
'Set 对象名=Server.CreateObject("工程名.类名")
'对象名.自建函数名

Set MyTestObj = Server.CreateObject("TestVBCode.HelloWorld")
MyTestObj.SayHello
%>


7、运行Test.asp文件结果显示如下：

Hello World


===========================================================

对于更复杂的运用,大家可以通过这个实例向外扩展就可以了.

如:

Public Sub connstr2()
Set conn = MyServer.CreateObject("ADODB.Connection")
conn.Open "driver={Microsoft Access Driver (*.mdb)};dbq=" & MyServer.MapPath("codata.mdb")

Set rs = conn.Execute("select * from news")
Do While Not rs.EOF
MyResponse.Write (rs("news_title") & "
")
rs.MoveNext
Loop
rs.Close
Set conn = Nothing
End Sub

这个是用数据库连接的代码封装,当然这里要添加ADO引用的.