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Index › Programming Questions & Help › Syntax Questions › XMLElement wont work in browser
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XMLElement wont work in browser (Read 285 times)
drew
XMLElement wont work in browser
Feb 25th, 2009, 5:33pm  
Hey guys,

Forgive me, for this seems like a common problem but I searched the site and could not find anything that would help me.

Im using XMLElement to take RSS feeds from the web and use them in my sketch.  However, when I go live on the web with my sketch it will not play in the browser and gives me a blank canvas.

I am not using proxml but should I?  Will I need to use some kind of server friendly language like PHP or Ruby??

My code is simple right now for demo purposes but I will post it anyways:

Code:

PFont font;

void setup() {
  size(200,200);
  font = loadFont("Dialog-48.vlw");
  // Download RSS feed
  String url = "http://uncammac.wordpress.com/feed/";
  XMLElement rss = new XMLElement(this, url);
  // Get all <title> elements
  XMLElement[] titles = rss.getChildren("channel/item/title");
  for (int i = 0; i < titles.length; i++) {
    println(titles[i].getContent());
  }
  textFont(font);
  textSize(12);
  fill(0);
  String s = titles[2].getContent();
  text(s,10,10,150,150);
}


Thanks again for listening

dnice
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PhiLho 
Re: XMLElement wont work in browser
Reply #1 - Feb 25th, 2009, 5:47pm  
Yes, it is a common, classical problem! Wink

For security reasons, applets cannot access local filesystem nor files on servers other than the one serving the page where the applet lives.
Fortunately, there is a workaround: you must sign the applet (I think there is a Hacks about this -- yes, here it is: How to sign an applet).
After that, the browser will warn the users and ask them if they want to proceed.
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WWW  
drew
Re: XMLElement wont work in browser
Reply #2 - Feb 25th, 2009, 7:37pm  
Hey Philo,

thx for the quick reply

I tried doing that hack and others for signing my applet.  However, I get to the last step when it asks me to enter the passphrase for keystore.  I enter my password but then it spits out:

jarsigner: unable to open jar file: rss3.jar

I know you might not be able to answer this given you were just giving me a lead to look for things, but I am once again stuck so Id thought id continue the thread.
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