一个socket组件及其调用方法

这个socket组件是由开发jmail的那家公司作的。
很老的一个版本了。不过挺好的。我一直在用。
比较稳定。以前发现xmlhttp在win2003 server上不太好。流量大了iis容易当掉。用这个组件倒还算稳定。

　  paraHost ="www.cncms.com"　　  ' host
　  paraPort = 80　　　　　　　　　　 ' port
　  paraFileUrl ="/test/test.htm"
　 
　  Set Socket = CreateObject("Socket.TCP")
　  Socket.Host = paraHost & ":" & paraPort
　  Socket.Timeout = paraTimeout
　  If Err.Number <> 0 Then Err.Clear
　  Socket.open
　  ' timeout error = 8000ffff
　  Socket.SendLine "GET " & paraFileUrl & " HTTP/1.0"
　  Socket.SendLine "HOST: " & paraHost
　  Socket.SendLine ""
　  Socket.SendLine ""
　  'Sleep 200
　  Socket.WaitForDisconnect
　  If Err.Number <> 0 Then
　　　  response.write Err.Number & " -- " & Err.Description

　  Err.Clear
　  Else
　  response.write HTTPResponse(Socket.Buffer, 1)  ' output text from  socket
　  End If
　  Socket.Close
　  Set Socket = Nothing

Private Function HTTPResponse(ByVal toHTTPResponse, ByVal whichHTTPResponse)
  On Error Resume Next
  Dim HTTPResponseDelimiter
 
  HTTPResponseDelimiter = Chr(13) & Chr(10) & Chr(13) & Chr(10)
  If (InStr(1, toHTTPResponse, HTTPResponseDelimiter, vbBinaryCompare) <> 0) Then
　  Select Case whichHTTPResponse
　  Case 0 'Header
　　  HTTPResponse = Mid(toHTTPResponse, 1, (InStr(1, toHTTPResponse, HTTPResponseDelimiter, vbBinaryCompare) - 1))
　  Case 1 'Body
　　  HTTPResponse = Mid(toHTTPResponse, (InStr(1, toHTTPResponse, HTTPResponseDelimiter, vbBinaryCompare) + Len(HTTPResponseDelimiter)), (Len(toHTTPResponse) - (InStr(1, toHTTPResponse, HTTPResponseDelimiter, vbBinaryCompare) - 1)))
　  End Select
  End If

End Function