利用XMLHTTP从其他页面获取网页数据

2022-07-15 80酷酷网 80kuku.com

　　xml|数据|网页|页面我们在编写ASP代码的时候，大家都知道可以通过post或者get获得form表单的数据，那么我们如何直接获得其他页面上的数据呢？这就要借助xmlhttp协议了。xmlhttp是xmldom技术的一部分。

下面的代码就是一个很简单的例子，我们利用xmlhttp技术，把http://www.codetoad.com/站点首页的代码以xml的形式完全获取，并且在页面中输出。

<%
  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 "

"
  Response.Write "<xmp>"
  Response.Write xml.responseText
  Response.Write "</xmp>"
  Response.write "

"
Response.write " Now here's how the page looks:

"
  Response.Write xml.responseText

  Set xml = Nothing
%>

下面是另一个实例
<%
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>