This is my HTML File:

<html>
<head>
<script type="text/javascript">
function validateCatalogId(){

var req=init();

  function init(){

if (window.XMLHttpRequest) {
           return new XMLHttpRequest();
       } else if (window.ActiveXObject) {
           
           return new ActiveXObject("Microsoft.XMLHTTP");
       }

}
var catalogId=document.getElementById("catalogId");
req.open("POST", "validateForm", true);
req.onreadystatechange=processRequest;
req.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
req.send("catalogId="+ encodeURIComponent(catalogId.value));

function processRequest(){

if(req.readyState==4){
   if(req.status==200){
    
      processResponse();

    }
  }
}

function processResponse(){

var xmlMessage=req.responseXML;

 }
}  

</script>

</head>
<body>
<h1>Form for Catalog Entry</h1>
<form name="validationForm" action="validateForm" method="post">

<div id="catalogId" name="catalogId"> </div>
<table>
<tr><td>Journal:</td><td><input    type="text"
            size="20"  
              id="journal"
            name="journal"></td>
</tr>

<tr><td>Publisher:</td><td><input    type="text"
            size="20"  
              id="publisher"
            name="publisher"></td>
</tr>
<tr><td><input    type="button" onclick="validateCatalogId();"
            value="Create Catalog"  
              id="submitForm"
            name="submitForm"></td>
</tr>
</table>

</form>

</body>
</html>

And this is my servlet:

import java.io.*;
import java.sql.*;
import javax.naming.InitialContext;
import javax.servlet.*;
import javax.servlet.http.*;

public class FormServlet extends HttpServlet {

			 private String catalogId =null;
			 private String journal=null;
			 private String publisher= null;

			 public void setCatalogId(String catalogId)
			{
				 this.catalogId= catalogId;
			}
			 public String getCatalogId()
			{
				return catalogId;
			}

			 public void setJournal(String journal)
			{
				 this.journal= journal;
			}

			 public String getJournal()
			{
				return journal;
			}

			 public void setPublisher(String publisher)
			{
				 this.publisher= publisher;
			}
		    public String getPublisher()
			{
				return publisher;
			}
			

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

			// Obtain value of Catalog Id field to ve validated.
			String catalogId = request.getParameter("catalogId");
			String journal = request.getParameter("journal");
			String publisher = request.getParameter("publisher");

			// set headers before accessing the Writer
			response.setContentType("text/xml");
			response.setHeader("Cache-Control", "no-cache");

			PrintWriter out = response.getWriter();


			if(request.getParameter("catalogId") != null) 
			{
				setCatalogId(request.getParameter("catalogId"));
			}
            else {
                     setCatalogId(" ");
            }

			if(request.getParameter("journal") != null) 
			{
				setJournal(request.getParameter("journal"));
			}
             else {
                     setJournal(" ");
             }
			
			if(request.getParameter("publisher") != null) {
				setPublisher(request.getParameter("publisher"));
			}
            else {
                   setPublisher(" ");
             }
			
			// then write the response
			// If result set is empty set valid element to true
		  
		   response.getWriter().write("<catalog>" + "<catalogId>+getCatalogId()+</catalogId>" + "<journal>+getJournal()+</journal>" + "<publisher>+getPublisher()+</publisher>" + "</catalog>");
		}
}

Without getter and setter methods the code is working fine..Can anyone find and solve the issue?

Expecting your Reply
Dave.

Are you running this on Tomcat server?
What are you trying to achieve?
Are there any errors?

i am not familiar with java servlets, but i doubt in following line:

req.send("catalogId="+ encodeURIComponent(catalogId.value));

i think it should be like this

req.send("catalogId="+ encodeURIComponent(catalogId.innerHTML));

please let me know if it works or not..:)