利用XMLHTTP 從其他頁面擷取資料

來源:互聯網
上載者:User
 

我們在編寫ASP代碼的時候,大家都知道可以通過post或者get獲得form表單的資料,那麼我們如何直接獲得其他頁面上的資料呢?這就要藉助xmlhttp協議了。xmlhttp是xmldom技術的一部分。

下面的代碼就是一個很簡單的例子,我們利用xmlhttp技術,把http://www.codetoad.com/網站首頁的代碼以xml的形式完全擷取,並且在頁面中輸出。

<%
  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
%>

下面是另一個執行個體

<%
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>

作者Blog:http://blog.csdn.net/qieyj/

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