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JavaRanch » Java Forums » Engineering » HTML, CSS and JavaScript
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How to retrieve DOM

achayya matta
Ranch Hand

Joined: Oct 27, 2005
Posts: 111
hello ranchers,
Can you people help me ?
my problem is..........

i am going to do some online examination project.I want to implement AJAX model for my project.
i have created one servlet which fetches " Questions and answers" from Database and makes one XML document in the memory.
I want to retrieve this XML document in my java script code.


Can you people suggest me how to retrieve the DOM in my java Script code???


....................................Following is the code which generates XML document..........................

import org.dom4j.Document;
import org.dom4j.DocumentHelper;
import org.dom4j.Element;
import org.dom4j.io.DOMWriter;



public class DocGen
{

private org.dom4j.Document doc;
Element root;
Element child;
Element Ichild;

public org.w3c.dom.Document generateDoc() throws Exception{
doc = DocumentHelper.createDocument();

root=doc.addElement("Questions");
child= root.addElement("Question").addAttribute("id","1").addAttribute("text","Which of the following are valid java keywords?");
Ichild= child.addElement("Option").addText("while");
Ichild= child.addElement("Option").addText("if");
Ichild= child.addElement("Option").addText("goto");
Ichild= child.addElement("Option").addText("friend");

child= root.addElement("Question").addAttribute("id","2").addAttribute("text","which of the following are valid java access specifiers?");
Ichild= child.addElement("Option").addText("public");
Ichild= child.addElement("Option").addText("private");
Ichild= child.addElement("Option").addText("default");
Ichild= child.addElement("Option").addText("none");

DOMWriter writer = new DOMWriter(); /* this line is used to create W3C DOM object out of DOM4J DOM object */
return writer.write(this.doc);

}


}



..............................Following is the code which makes W3c DOM........................................................
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;

import com.valueshore.xml.DocGen;

import org.dom4j.Document;

/**
*
* @author GSI
* @version
*/
public class EvaluationServlet extends HttpServlet {


protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException,Exception {

DocGen dg=new DocGen();
org.w3c.dom.Document doc=dg.generateDoc();
response.setContentType("text/xml");
PrintWriter out = response.getWriter();
out.close();
}


}
Madhav Lakkapragada
Ranch Hand

Joined: Jun 03, 2000
Posts: 5040
AJAX is discussed in the Javascript forum. Sounds like this is a good fit for that forum. Please continue the discussion in that forum. Thanks.

- m


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Eric Pascarello
author
Rancher

Joined: Nov 08, 2001
Posts: 15376
    
    6
looks like it was already post....Please do not cross post...we will move it to the right area!

http://www.coderanch.com/t/118427/HTML-JavaScript/Retrieve-DOM

Closing this one.

Eric
 
I agree. Here's the link: http://aspose.com/file-tools
 
subject: How to retrieve DOM
 
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