How to display XML File in JSP?

[ujjvalpandya]

Hi

I have one XML file. Its actualy a RSS file. I wnat to display my RSS in JSP and then when i will open that JSP, my RSS reader which is inbuilt in my Explorer, will display the XML file.

How to acieve it? I think MIME can be used. But not able to find much about it. How cna i do it ?

[PeejAvery]

[ moved ]

[Xeel]

This is one of many manual ways to do it (sry for php tag, but the code looks more readable this way):
import java.net.URL;
import java.io.File;
import java.util.ArrayList;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;

import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;

public class test {
public static void main(String[] args){

ArrayList<String[]> rssItems = getRSSitems();
for(int i=0; i<rssItems.size(); i++){
String[] rssItem = rssItems.get(i);
System.out.println("title: "+rssItem[0]);
System.out.println("description: "+rssItem[1]);
System.out.println("link: "+rssItem[2]);
System.out.println("guid: "+rssItem[3]);
System.out.println("pubDate: "+rssItem[4]);
System.out.println("category: "+rssItem[5]);
System.out.println("IMG attrubutes: width="+rssItem[6]+
", height="+rssItem[7]+", url="+rssItem[8]+"\n");
}
}

private static ArrayList<String[]> getRSSitems(){

ArrayList<String[]> rssItems = new ArrayList<String[]>();
DocumentBuilderFactory docBuilderFactory = DocumentBuilderFactory.newInstance();

try{
DocumentBuilder docBuilder = docBuilderFactory.newDocumentBuilder();

//remote rss xml
URL url = new URL("http://newsrss.bbc.co.uk/rss/sportonline_world_edition/front_page/rss.xml");
Document doc = docBuilder.parse(url.openStream());

/*
//local rss xml
File f = new File("[localPath]/rss.xml");
Document doc = docBuilder.parse(f);
*/

doc.getDocumentElement().normalize();

//list xml by tags (this is not a generic solution
//so we must know exact rss xml structure)
NodeList nlItems = doc.getElementsByTagName("item");
int totalItems = nlItems.getLength();
//System.out.println("Total # of items: " + totalItems);

for(int i=0; i<totalItems; i++){
Node tableNode = nlItems.item(i);
if(tableNode.getNodeType() == Node.ELEMENT_NODE){
String[] rssItem = new String[9];
Element tableElement = (Element)tableNode;

NodeList nodeList = tableElement.getElementsByTagName("title");
Element element = (Element)nodeList.item(0);
NodeList textList = element.getChildNodes();
rssItem[0] = ((Node)textList.item(0)).getNodeValue().trim();

nodeList = tableElement.getElementsByTagName("description");
element = (Element)nodeList.item(0);
textList = element.getChildNodes();
rssItem[1] = ((Node)textList.item(0)).getNodeValue().trim();

nodeList = tableElement.getElementsByTagName("link");
element = (Element)nodeList.item(0);
textList = element.getChildNodes();
rssItem[2] = ((Node)textList.item(0)).getNodeValue().trim();

nodeList = tableElement.getElementsByTagName("guid");
element = (Element)nodeList.item(0);
textList = element.getChildNodes();
rssItem[3] = ((Node)textList.item(0)).getNodeValue().trim();

nodeList = tableElement.getElementsByTagName("pubDate");
element = (Element)nodeList.item(0);
textList = element.getChildNodes();
rssItem[4] = ((Node)textList.item(0)).getNodeValue().trim();

nodeList = tableElement.getElementsByTagName("category");
element = (Element)nodeList.item(0);
textList = element.getChildNodes();
rssItem[5] = ((Node)textList.item(0)).getNodeValue().trim();

nodeList = tableElement.getElementsByTagName("media:thumbnail");
element = (Element)nodeList.item(0);
rssItem[6] = element.getAttribute("width");
rssItem[7] = element.getAttribute("height");
rssItem[8] = element.getAttribute("url");

rssItems.add(rssItem);
}

}
}catch(Exception e){
System.out.println(e.toString());
e.printStackTrace(System.out);
}
return rssItems;
}
}

Forget about heavy trinkets like Sun RSS Utilities, they are buggy, they are too generic.

[compavalanche]

If I understand the original post correctly then you just want to set the Content-type header to text/xml

Then print out your xml with nothing else.

Hope that helps...