Forum:

Servlets

Problem regarding redirected error message

Greenhorn

Posts: 23

posted 14 years ago

Number of slices to send:

Optional 'thank-you' note:

Send

Please help me to solve the last part of the problem..

Make a �registration� form that collects a first name, last name, and email address. Send the data to a servlet that displays it.If the user fails to supply a value for any of the fields in the form, you should redisplay the form but with an error message saying that the value is missing.

Don�t make the user re-enter values that they�ve entered already.

Regards vaibhav srivastava SCJP1.5 , SCWCD1.5

Ben Souther

Sheriff

Posts: 13411

I like...

posted 14 years ago

Number of slices to send:

Optional 'thank-you' note:

Send

This sounds like a homework assignment.

We'd love to help but we're not going to code it for you.
How much have you got done so far?
What part are you stuck on?

Java API J2EE API Servlet Spec JSP Spec How to ask a question... Simple Servlet Examples jsonf

vaibhav srivastava

Greenhorn

Posts: 23

posted 14 years ago

Number of slices to send:

Optional 'thank-you' note:

Send

I have done till generation of Error page which have same Html form like structure saying that something you have missed to fill in the form..

But I stuck ...How to persist that values which the client have provided in the first HTML form i.e. how to make that the client don't have to re-write the values they already provided.

Regards vaibhav srivastava SCJP1.5 , SCWCD1.5

Ben Souther

Sheriff

Posts: 13411

I like...

posted 14 years ago

Number of slices to send:

Optional 'thank-you' note:

Send

Can you tell us about or show us the code you've got so far?

Java API J2EE API Servlet Spec JSP Spec How to ask a question... Simple Servlet Examples jsonf

vaibhav srivastava

Greenhorn

Posts: 23

posted 14 years ago

Number of slices to send:

Optional 'thank-you' note:

Send

I have developed this much code:
1)form.html

2) NewCheck.java

package Foo;
 
import java.io.IOException;
import java.io.PrintWriter;
 
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
 
 public class NewCheck extends javax.servlet.http.HttpServlet implements javax.servlet.Servlet {
 
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
response.setContentType("text/html");
PrintWriter out= response.getWriter();
String FName=request.getParameter("First_name");
String LName=request.getParameter("Last_name");
String EId=request.getParameter("email_id");
if((FName==null)||(FName.trim().length()==0)||(LName==null)||(LName.trim().length()==0)||(EId==null)||(EId.trim().length()==0))
{
RequestDispatcher view= request.getRequestDispatcher("ErrorPage.jsp");
view.forward(request,response);
}
out.println("<html><body bgcolor=green><center>");
out.println("First Name= "+FName+" ");
out.println("Last Name= "+LName+" ");
out.println("Email Id= "+EId+" ");
out.println("</center></body></html>");

}
 }

3)ErrorPage.jsp

how to make that client dont have to re-enter the value they have given before

Regards vaibhav srivastava SCJP1.5 , SCWCD1.5

Amit Ghorpade

Bartender

Posts: 2856

I like...