How to reload a JSP with request.getAttribute values

[vishnuu soman]

Hello All,
I have this application where i want to populate a text file on the basis of entries entered from user interface.
I chose Struts1 for this and i have been able to complete most of the functionalities.But the part of keeping on populating the
text file on the basis of user entries in my JSP is something i am struggling with. The following are the flow of pages on user interface

1.'Accept user entries' http://www.image-share.com/ijpg-1178-104.html
2.'Ask for scan data on the basis of entries in page1' http://www.image-share.com/ijpg-1178-105.html
3.'Submit after entering the scandata. ' http://www.image-share.com/ijpg-1178-106.html
(I have been able to straighten the null values in the images via session variables)
message is seen with null entries like this Post validation.
My questions are:
2. What should be used so that there is a scenario that the users enter the Scan Data on page 2 and can continue to enter
more scan data values by falling back on the same JSP . I was thinking on the lines of reloading the page using JavaScript
on the button click. Is it the right approach?

The relevant code for this is

<html:form action="txtwriter">    
   <% String itemname = (String)session.getAttribute("itemname");   %> 
<% String lotnumber = (String)session.getAttribute("lotnumber");   %>
 <% String godownname = (String)session.getAttribute("godownname");  %> 
<br/>  
<% String message = (String)session.getAttribute("message");    
session.setAttribute( "theFileName", message );  %>  
 Filename : <%= message %>  
<br/>  Item Name :<%= itemname %>
  <br/> Lot Number :<%= lotnumber %> 
 <br/>    Godown Name :<%= godownname %>  
<br/>    <bean:message key="label.scandata"/> 
   <html:text property="scanData" ></html:text>    
    <html:errors property="scanData"/> 
   <br/>     
  <html:submit/> 
  /* How should the submit button handle the onClick event so that when the users click  
 after entering the text.
  1. The entered text must be populated in the text file using a different action class.  (I have this part working) 
 2.They must be on the same jsp with the scanData text box cleared waiting for the next  user entry into that text 
box so that this subsequest entry can also be entered into the text file. (I am looking for this answer)*/  
  <br/>  
   </html:form> 

>LoginAction.java - Action class for the first page

package com.store.action;
public class LoginAction extends Action
{    
	public ActionForward execute(ActionMapping mapping, ActionForm form,  HttpServletRequest request, HttpServletResponse response)  
	throws Exception {   
		String target = null;  
		String textFile = "";
		String dateTime ="";
		LoginForm loginForm = (LoginForm)form;   
		String[] tempDateStore;
		String delimiter = "AD at";
		String finalDate = "";
		String driveName = "";
		String folderName = "";
		String completePath = "";
		String fileNamePath = "";
		FileOutputStream fout;
		FileInputStream fin;
		if((!loginForm.getItemName().equals("")) && (!loginForm.getLotNumber().equals(""))&& 
(!loginForm.getStockGodown().equals(""))) 
		{ ...						
	
HttpSession session = request.getSession();
 session.setAttribute("message", textFile);
 session.setAttribute("itemname",loginForm.getItemName().trim());
 session.setAttribute("lotnumber",loginForm.getLotNumber().trim()); 
session.setAttribute("godownname",loginForm.getStockGodown().trim()); 
			}     
		else {     
			target = "failure";    
			}     
		return mapping.findForward(target); 
		} 
	
	
	public static String now(String dateFormat) {
	    Calendar cal = Calendar.getInstance();
	    SimpleDateFormat sdf = new SimpleDateFormat(dateFormat);
	    return sdf.format(cal.getTime());

	  }

	

	
	}

>TextWriterAction.java - Action class for the welcome.jsp

package com.store.action;


public class TextWriterAction extends Action
{    
	public ActionForward execute(ActionMapping mapping, ActionForm form,  HttpServletRequest request, HttpServletResponse response)  
	throws Exception {   
		String completePath ="";
		String target = null;  
		TextWriter txtWriter = (TextWriter)form;   
		ServletContext context = getServlet().getServletContext(); 
		if((!txtWriter.getScanData().equals("")) && (!txtWriter.getScanData().equals(null))) 
		{        
			String name = (String)request.getSession().getAttribute("theFileName");
			String driveName = context.getInitParameter("drive");
			String folderName = context.getInitParameter("foldername");
			completePath = driveName.trim() +":\\"+ folderName.trim()+"\\"+name;
			File scanDataFile = new File(completePath);
			try {
			    BufferedWriter out = new BufferedWriter(new FileWriter(scanDataFile));
			    out.write(txtWriter.getScanData()+",1");
			    out.newLine();
			    out.close();
			} catch (IOException e) {
			}

			
			
			
			
			//System.out.println("yess" + txtWriter.getTxtFileName().trim());		
			target = "successRead";     
		//	request.setAttribute("message", textFile);  
		//	request.setAttribute("itemname",loginForm.getItemName().trim());
		//	request.setAttribute("lotnumber",loginForm.getLotNumber().trim());
		//	request.setAttribute("godownname",loginForm.getStockGodown().trim());
			}     
		else {     
			target = "failureRead";    
			}     
		return mapping.findForward(target); 
		} 
	


	

	
	}

Would like to have your valuable suggestions

Thanks
Vishnu