利用XMLHTTP 從其他頁(yè)面獲取數(shù)據(jù)
我們?cè)诰帉?xiě)ASP代碼的時(shí)候，大家都知道可以通過(guò)post或者get獲得form表單的數(shù)據(jù)，那么我們?nèi)绾沃苯荧@得其他頁(yè)面上的數(shù)據(jù)呢？這就要借助xmlhttp協(xié)議了。xmlhttp是xmldom技術(shù)的一部分。
下面的代碼就是一個(gè)很簡(jiǎn)單的例子，我們利用xmlhttp技術(shù)，把http://www.codetoad.com/站點(diǎn)首頁(yè)的代碼以xml的形式完全獲取，并且在頁(yè)面中輸出。
<％
Dim objXMLHTTP, xml
Set xml = Server.CreateObject("Microsoft.XMLHTTP")
xml.Open "GET", "http://www.codetoad.com/", False
' Pull the data from the web page
xml.Send
Response.write "Here's the html we now have in our xml object"
Response.write "<BR><BR><BR>"
Response.Write "<xmp>"
Response.Write xml.responseText
Response.Write "</xmp>"
Response.write "<BR><BR><BR>"
Response.write " Now here's how the page looks:<BR><BR>"
Response.Write xml.responseText
Set xml = Nothing
％>
下面是另一個(gè)實(shí)例
<％
dim objHTTP , objXML , objXSL
set objHTTP = Server.CreateObject("Microsoft.XMLHTTP")
objHTTP.open "GET", "http://p.moreover.com/cgi-local/page?c=Pop％20music％20reviews&o=xml", false
objHTTP.send
set objXML = objHTTP.responseXML
set objXSL=Server.CreateObject("microsoft.xmldom")
objXSL.async=false
objXSL.load(Server.MapPath("style.xsl"))
if (objXSL.parseError.errorCode = 0) then
Response.Write(objXML.transformnode(objXSL))
else
Response.Write "Error: " & objXSL.parseError.reason & " URL:" & objXSL.url
end if
Set objHTTP = Nothing
Set objXML = Nothing
Set objXSL = Nothing
％>
style.xsl：
<xsl:stylesheet xmlns:xsl="http://www.w3.org/TR/WD-xsl">
<xsl:template match="/">
<html>
<head>
<TITLE>moreover...</TITLE>
</head>
<body BGCOLOR="ffffff">
<DIV ALIGN="center">
<TABLE BGCOLOR="ffffff" BORDER="0" CELLPADDING="4" CELLSPACING="0" WIDTH="100％">
<xsl:for-each select="moreovernews/article">
<TR VALIGN="middle">
<TD ALIGN="left" BGCOLOR="ffffff">
<xsl:attribute name="HREF">
<xsl:value-of select="url"/>
</xsl:attribute>
<xsl:attribute name="TARGET">
_blank
</xsl:attribute>
<xsl:value-of select="headline_text"/>
<xsl:attribute name="HREF">
<xsl:value-of select="document_url"/>
</xsl:attribute>
<xsl:attribute name="TARGET">
_blank
</xsl:attribute>
<xsl:value-of select="source"/>
<xsl:attribute name="HREF">
<xsl:value-of select="access_registration"/>
</xsl:attribute>
<xsl:attribute name="TARGET">
_blank
</xsl:attribute>
<xsl:value-of select="access_status"/>
<xsl:value-of select="harvest_time"/> GMT
</TD>
</TR>
</xsl:for-each>
</TABLE>
</DIV>
</body>
</html>
</xsl:template>
</xsl:stylesheet>
關(guān)鍵詞：XMLHTTP
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