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Discussion Topic: Yahoo RSS News Feed Help
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area215 |
03-05-2004 @ 9:18 AM |
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New Member
Posts: 15
Joined: Feb 2004
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I was wondering if anyone could help me with this?
I want to use yahoos news feeds on my site.
When I put a direct URL link to an XML file on my computers CFMX Server It works.
Example:
<CFHTTP URL="http://localhost:8500/news/health.xml" METHOD="get" RESOLVEURL="no"/>
Now when I direct the URL link to Yahoos feed it comes up with an error saying that a Document root element is missing!
Can anyone help me with this.
Here Is my code:
<CFHTTP URL="http://rss.news.yahoo.com/rss/health" METHOD="get" RESOLVEURL="no"/>
<CFSCRIPT>
objRSS = trim(cfhttp.filecontent);
objRSS = XMLParse(objRSS);
</CFSCRIPT>
<CFSET XMLRoot = objRSS.XmlRoot >
<CFSET News_Length = arraylen(XMLRoot.channel.item) >
<CFLOOP index="i" from="1" to="#News_Length#" >
<CFSET item_title = XMLRoot.channel.item.title.xmltext >
<CFSET item_link = XMLRoot.channel.item.link.xmltext >
<CFSET item_pubDate = XMLRoot.channel.item.pubDate.xmltext >
<CFSET item_description = XMLRoot.channel.item.description.xmltext >
<CFOUTPUT>
<STRONG>#item_title#</STRONG><br/>
#item_pubDate#<br/>
<a href="#item_link#">#item_description#</a><br/>
<br/>
</CFOUTPUT>
</CFLOOP>
I even tried the tutorials on here and I am still getting the same error.
Thanks,
Area215
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CJ |
03-05-2004 @ 10:00 AM |
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Administrator
Posts: 4262
Joined: Oct 2002
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well, first step in debugging is to isolate the error.
since you're getting the error using the XMLParse() fucntion on a value, let's check the value.
after your cfhttp call, do this:
<cfdump var="#cfhttp#">
<cfabort>
i bet you'll see the connection failed (which is why the XMLParse() function is failing).
as far as *why* the connection failed? dunno. fact of the matter is that i'm getting the same thing.
looking into it. if i figure out the problem, I'll post back.
-CJ-
@ #coldfusion/DALNet
http://charlie.griefer.com
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CJ |
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03-05-2004 @ 10:11 AM |
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Administrator
Posts: 4262
Joined: Oct 2002
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almost certainly a firewall issue. are you behind a firewall?
firewalls can wreak havoc with cfhttp
-CJ-
@ #coldfusion/DALNet
http://charlie.griefer.com
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CJ |
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03-05-2004 @ 10:26 AM |
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Administrator
Posts: 4262
Joined: Oct 2002
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ok...here we go:
(i took the liberty of 'cleaning up' some of the code...i'll comment where i can)
<?xml version="1.0" encoding="iso-8859-1"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Untitled</title>
<meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1" />
</head>
<body>
<!--- a CFMX 'fix' for consuming web svcs from behind proxy --->
<!--- courtesy of http://blog.daemon.com.au/archives/000047.html --->
<cfscript>
obj = CreateObject("java", "java.lang.System");
obj.setProperty("http.proxyHost", "xxx.xxx.xxx.xxx"); // your proxy server IP (or address)
obj.setProperty("http.proxyPort", "xxxx"); // your proxy server port
</cfscript>
<cfhttp
url="http://rss.news.yahoo.com/rss/health"
method="get"
>
<cfscript>
objRSS = trim(cfhttp.filecontent);
objRSS = XMLParse(objRSS);
</cfscript>
<!---
here, i mostly just removed all of the assignments you had. rationale being there was no reason to create a variable assignment with each iteration of the loop. that's just extra resources at runtime and extra lines of code. if you're not planning to re-use those vars, they're really unnecessary.
also, i moved the <cfoutput> blocks to *outside* of the <cfloop>. i have a tutorial on 'best practices' in coding that goes into detail as to why this is MUCH better
oh, and the only reason i changed the loop index from 'i' to 'newsitem' is that the forums see [ i ] as an italics indicator 
--->
<cfoutput>
<cfloop index="newsitem" from="1" to="#arraylen(objRSS.XMLRoot.channel.item)#">
<strong>#objRSS.XMLRoot.channel.item[newsitem].title.xmltext#</strong><br/>
#objRSS.XMLRoot.channel.item[newsitem].pubDate.xmltext#<br/>
<a href="#objRSS.XMLRoot.channel.item[newsitem].link.xmltext#">
#objRSS.XMLRoot.channel.item[newsitem].description.xmltext#
</a><br/>
<br/>
</cfloop>
</cfoutput>
</body>
</html>
-CJ-
@ #coldfusion/DALNet
http://charlie.griefer.com
This message was edited by CJ on 3-5-04 @ 10:41 AM
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area215 |
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03-05-2004 @ 11:55 AM |
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New Member
Posts: 15
Joined: Feb 2004
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I tried the code above and am still getting this error! Did the code work for you?
Document root element is missing.
Document root element is missing.
The error occurred in C:\CFusionMX\wwwroot\News\TMP95vqgu44fw.cfm: line 13
11 : <CFSCRIPT>
12 : objRSS = trim(cfhttp.filecontent);
13 : objRSS = XMLParse(objRSS);
14 : </CFSCRIPT>
15 :
Oh, sorry for seeming dumb but how do I figure out what my http.proxyHost and http.proxyPort are.
I am just using the Cold Server on my computer for Development. And I am using NetZero to connect to the internet. Hope this helps a bit.
Thanks
Area215
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