利用Asp里的xmlhttp组件来获取页面内容

以下是引用片段：

以下文件保存为：test.asp 后运行

<%
on error resume next
time1=timer
dim reg,vUrl,VBody,temp1,temp2,code,time1,time2,title
vUrl=trim(request.form("url"))
reg="\<meta.+ charset= {0,}([^\""| |\>|\/]*).+\/{0,1}\>"
if vUrl<>"" then
VBody=GetResStr(trim(request.form("url")))
temp1=VBody:temp2=VBody
code=GetCode(temp1,reg)
title=GetCode(temp2,"\<title\>(.*)\<\/title\>")
else
vUrl="http://"
end if
time2=timer
%>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>抓取页面</title>
<%if err.number<>0 then%>
<script language="javascript">alert('发生错误!\n您输入的URL为\"<%=vUrl%>\"\n请检查您输入的URL是否合法!');</script>
<%end if%>
</head>
<body style="font-size:12px;margin:20px 0 0 20px;">
<form name="geturl" action="test.asp" method="post">
请输入合法URL(必须以http://开头):<br /><input name="url" type="text" size=60 value="<%=vUrl%>"/><br />
<input type="submit" value="抓取" /><br />
</form>
所用时间:<font color=green><%=formatnumber((time2-time1)*1000,2)%>MS</font> <br />
页面标题:<font color=green><%=title%></font> 页面编码:<font color=green><%=code%></font> <br />
<textarea cols=150 rows=30><%=VBody%></textarea>
</body>
</html>

<%
function GetResStr(URL)
dim ResBody,ResStr,PageCode
Set Http=server.createobject("msxml2.serverxmlhttp.3.0")
Http.setTimeouts 10000, 10000, 10000, 10000
Http.open "GET",URL,False
Http.Send()
If Http.Readystate =4 Then
If Http.status=200 Then
    ResStr=http.responseText
    ResBody=http.responseBody
    PageCode=GetCode(ResStr,reg)
    GetResStr=BytesToBstr(http.responseBody,PageCode)
End If
End If
End Function

'函数名:BytesToBstr
'作用:转换二进制数据为字符
'参数:Body-二进制数据,Cset-文本编码方式
Function BytesToBstr(Body,Cset)
Dim Objstream
Set Objstream = Server.CreateObject("adodb.stream")
objstream.Type = 1
objstream.Mode =3
objstream.Open
objstream.Write body
objstream.Position = 0
objstream.Type = 2
objstream.Charset = Cset
BytesToBstr = objstream.ReadText
objstream.Close
set objstream = nothing
End Function

'函数名:GetCode
'作用:转换二进制为字符
'参数:str-待查询字符串,regstr-正则表达式
Function GetCode(str,regstr)
Dim Reg
set Reg= new RegExp
Reg.IgnoreCase = True
Reg.MultiLine = True
Reg.Pattern =regstr
Set Cols = Reg.Execute(str)
str=Cols(0).SubMatches(0)
GetCode=str
end function
%>

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