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如何生成自己的AspHttp组件: 使用Winsock控件，下面将介绍怎么来建立一个简朴的HTTP组件。 记住先选择mswinsck.ocx控件,下面的代码是在VB6中编译的。 代码如下： Private WithEvents objWinSock As MSWinsockLib.Winsock Private strURL As String Private strURI As String Private strServer As String Private nPort As Long Private strHead As String Private strData As String Private bConnected As Boolean Public Function httpGet(URL As String) As String Set objWinSock = New MSWinsockLib.Winsock strURL = URL ParseURL Connect SendRequest objWinSock.Close strHead = Left(strData, InStr(strData, vbCrLf & vbCrLf)) strData = Right(strData, Len(strData) - InStr(strData, vbCrLf & vbCrLf)) httpGet = strData End Function Private Sub ParseURL() If LCase(Left(strURL, 7)) = "http://" Then If InStr(8, strURL, "/") = 0 Then strServer = Right(strURL, Len(strURL) - 7) strURI = "/" Else strServer = Mid(strURL, 8, InStr(8, strURL, "/") - 8) strURI = Right(strURL, Len(strURL) - InStr(8, strURL, "/") + 1) End If If InStr(strServer, ":") <> 0 Then nPort = CLng(Right(strServer, Len(strServer) - InStr(strServer, ":"))) strServer = Left(strServer, InStr(strServer, ":") - 1) End If If nPort = 0 Then nPort = 80 Else Err.Raise vbObjectError, "Error", "错误的URL" End If End Sub Private Sub Connect() Dim dtStart As Date dtStart = Now() objWinSock.RemoteHost = strServer objWinSock.RemotePort = nPort objWinSock.Connect Do Until bConnected DoEvents If DateDiff("s", dtStart, Now) > 30 Then Err.Raise vbObjectError, "Error", "连接超时" End If Loop End Sub Private Sub SendRequest() Dim strCmd Dim dtStart As Date dtStart = Now() strCmd = "GET " & strURI & " HTTP/1.0" & vbCrLf strCmd = strCmd & "User-Agent: aspHttp.http" & vbCrLf strCmd = strCmd & "Accept: */*" & vbCrLf strCmd = strCmd & vbCrLf objWinSock.SendData strCmd Do Until objWinSock.State = sckClosing DoEvents If DateDiff("s", dtStart, Now) > 60 Then Err.Raise vbObjectError, "Error", "哀求超时" End If Loop End Sub Public Property Get Head() As Variant Head = strHead End Property Public Property Get Body() As Variant Body = strData End Property Private Sub objWinSock_DataArrival(ByVal bytesTotal As Long) Dim strTemp objWinSock.GetData strTemp, vbString strData = strData & strTemp End Sub Private Sub objWinSock_Connect() bConnected = True End Sub Private Sub objWinSock_Error(ByVal Number As Integer, Description As String, _ ByVal Scode As Long, ByVal Source As String, ByVal HelpFile As String, _ ByVal HelpContext As Long, CancelDisplay As Boolean) Err.Raise vbObjectError, "Error", "Winsock Error: " & Number & vbCrLf & Description CancelDisplay = True End Sub 编译该组件，然后按照下面的步骤注册该组件 C:net stop iisadmin /y C:mtxstop 编译成Active Dll C:net start w3svc 在ASP中调用这个组件 <%@ Language=VBScript %> <HTML> <HEAD> <META NAME="GENERATOR" Content="Microsoft Visual Studio 6.0"> </HEAD> <BODY> <% Dim obj Set obj = Server.CreateObject("aspHttp.http") Response.Write obj.httpGet("http://www.4ico.com") %> </BODY> </HTML> 返回类别: 教程 上一教程: 如何用CODESMITH减少代码重复编写 下一教程: 存贮过程 您可以阅读与"使用ASP建立HTTP组件"相关的教程: · XMLHTTP组件在ASP开发中的使用 · ASPHTTP使用范例-远程读取别人的页面，并自动写入库 · 调试 ASP 中使用的 VISUAL BASIC COM 组件 · ASP系列讲座(七)使用组件和对象 · 如何使用ASP在自己的网站建立投票机制(二) |
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