Question

Parse XML document with MSXML2.ServerXMLHTTP.4.0 in classic ASP

Asked by: amelora

Hi,

I'm trying to use a XML file from a remote server in classic asp.  The problem is it did not load with Microsoft.XMLDOM but it succeed with MSXML2.ServerXMLHTTP.4.0.  But I don't know how to use this more recent driver.

I tried to use the getElementsByTagName method and I got the message: Object doesn't support this property or method.

Does anybody can tell me how to access the differents items and nodes of the document? And somewhere I can get all the properties and methods for this specific driver?

Thanks.

Set objSrvHTTP = Server.CreateObject("MSXML2.ServerXMLHTTP.4.0")
objSrvHTTP.open "GET", "http://somesite.com/USD/rss.xml", false
objSrvHTTP.send()

                                  
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Asked On
2009-01-20 at 01:00:48ID24066272
Tags

xml asp

Topics

ActiveX

,

Active Server Pages (ASP)

,

Extensible Markup Language (XML)

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Answers

 

by: hieloPosted on 2009-01-20 at 02:39:53ID: 23418723

create a DOM object and use the retrieved xml to initialize your object

Set objSrvHTTP = Server.CreateObject("MSXML2.ServerXMLHTTP.4.0")
objSrvHTTP.open "GET", "http://somesite.com/USD/rss.xml", false
objSrvHTTP.send() 
Set objXML = Server.CreateObject("MSXML2.DOMDocument.3.0")
objXML.loadXML objSrvHTTP.responseText 
Set objSrvHTTP = Nothing 
Set root = objXML.documentElement 
'assuming you have <category><sport><water>Swimming</water></sport><sport><aerial>Ski Diving</aerial></sport></category>
root.selectNodes("/category/sport/water")

                                              
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by: ameloraPosted on 2009-01-20 at 12:50:56ID: 23424174

Thanks hielo for your reply but it did not work. I've never been able to get selectNodes to work.  It always had a length value of 0.

After more research I found a solution with the code below.

Set xmlHttp = Server.CreateObject("MSXML2.ServerXMLHTTP.3.0")
 xmlHttp.Open "GET", "http://somesite.com/USD/rss.xml", false
 xmlHttp.Send()
 RSSXML = xmlHttp.ResponseText 
 Set xmlDOM = Server.CreateObject("MSXML2.DomDocument.3.0")
 xmlDOM.async = False
 xmlDOM.validateOnParse = False
 xmlDom.resolveExternals = False 
 If xmlDOM.LoadXml(RSSXML) Then
  Set xmlHttp = Nothing ' clear HTTP object 
  Set RSSItems = xmlDOM.getElementsByTagName("item") ' collect all "items" from downloaded RSS 
  Set RSSItem = RSSItems.Item(4)
  
  curStr = RSSItem.childNodes(4).text
  
  Set xmlDOM = Nothing ' clear XML
  
  curRate = mid(curStr, Instr(1, curStr, ".")-1)
  curRate = Left(curRate, Instr(1, curRate, " ")-1)
 End If
                                              
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by: hieloPosted on 2009-01-20 at 13:53:21ID: 23424724

Sorry to hear you had problems. However, I disagree that the posted code does not work. I tried the  code below (which simply uses some public rss feed for testing and I added extra statements to prove that it does extract the title of the news items). Typically when you run into more problems it is expected that you report back with a description of the continued problems ESPECIALLY if the given code works properly. Thus, your request for deletion is completely inappropriate.


Set objSrvHTTP = Server.CreateObject("MSXML2.ServerXMLHTTP.3.0")
objSrvHTTP.open "GET", "http://rss.cnn.com/rss/cnn_topstories.rss", false
objSrvHTTP.send() 
 
Set objXML = Server.CreateObject("MSXML2.DOMDocument.3.0")
objXML.loadXML objSrvHTTP.responseText 
Set objSrvHTTP = Nothing 
Set root = objXML.documentElement 
Set items = root.selectNodes("/rss/channel/item/title")
For Each title in items
Response.Write( "<h1>" & title.text & "</h1>" )
Next
Set objXML = Nothing
</script>

                                              
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