(unknown)

generally speaking, you can use the requestDispatcher to forward to a jsp which "is" your input form. This jsp can use all of the request attributes and request parameters to "prefill" the fields with the "value=" attribute on your <input> tags. 
eg: 
in your servlet:
 
boolean tryAgain = false;
String attrName = "myinputfield";
String attrVal = request.getParameter(attrName);
if (attrVal != null) {
    if ( fieldValidator(attrName,attrVal).isGoofy()){
        tryAgain = true;
        request.setAttribute(attrName,"Your input was goofy! Try again!");
    }
}
 
if (tryAgain) {
    request.getRequestDispatcher("/inputform.jsp").forward(request,response);
}
 
in your "inputform.jsp":
 
<%= request.getAttribute("myinputfield") %>
<% String s = "<input type=\"text\", name=\"myinputfield\",value=\"" + 
    (String) request.getParameter("myinputfield") + "\">";
    out.println(s);
%>
 

-----Original Message-----
From: Kevin Goethe [mailto:[email protected]]
Sent: Thursday, January 30, 2003 3:33 PM
To: [email protected]
Subject: 


Is there another way without diving into struts!   It sounds like I need to spend time in the future to learn about struts, but for now...  I need another solution.

At 02:50 PM 1/30/2003 -0500, you wrote:


Kevin: 

Have you considered using Struts?  It neatly solves this as well as many other problems. (plus is pure pleasure to work with!! :) 

Regards, 
Geeta 

Kevin Goethe wrote: 


 Use pure server-side (javascript not an option) 

Question: 
I need a way to preserve the input fields entered on a form after field validation occurs in the servlet.   If input error is detected during servlet validaton, how can I redisplay input form with values the user entered? 

I am using a servlets not jsp. 

Kevin Goethe 
Senior Analyst 
Northern Michigan University 
1401 Presque Isle 
501 Cohodas Building 
Marquette, MI  49855 

email:  [email protected] 
phone: 906-227-1253 
fax:      906-227-1890

Kevin Goethe
Senior Analyst
Northern Michigan University
1401 Presque Isle
501 Cohodas Building
Marquette, MI  49855

email:  [email protected]
phone: 906-227-1253
fax:      906-227-1890 



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