Well, if your taglibs are working properly (I assume they are, since your
JSP page runs without any hiccups with the taglib declaration in it), then,
to print out the firstName property of the formToValidate "bean", you would
do...
<c:out value="${formToValidate.firstName}" />
Yes, they ACTUALLY named the tag "c:out"! Must have been a C++ programmer
at one time! :-) In protest, I usually use a different "prefix" for the
JSTL core library. Anyway, there is a good book out called JSTL In Action
by Shawn Bayern (Manning Publications), if you're looking for a reference.
-----Original Message-----
From: sdgesa gaeharth [mailto:pollux1234567890@xxxxxxxxx]
Sent: Wednesday, September 08, 2004 11:25 PM
To: users@xxxxxxxxxx
Subject: RE: [cinjug-users] newbie trying to learn m-v-c
J Cameran:
Exactly the answer I was hoping for!! Can you show me
how to integrate jstl with my jsp page. I have only
scratched the surface with jstl documenation and I
need an example to get started.
For everyone else...
I would use a framework except I would rather learn
from scratch. Later on, if I decide to use a framework
I try it out.
thanks again.
--- James Carman <james@xxxxxxxxxxxxxxxxxxxx> wrote:
> With JSTL (I assume you're using JSTL since you've
> defined the taglib in
> your JSP page), you don't need ANY of that scriptlet
> code. Why not use the
> JSTL tags to print out your values? You wouldn't
> have to worry about
> casting anything to String. You wouldn't have to
> import any classes. JSTL
> would take care of all of that for you.
>
>
> -----Original Message-----
> From: sdgesa gaeharth
> [mailto:pollux1234567890@xxxxxxxxx]
> Sent: Wednesday, September 08, 2004 3:40 PM
> To: users@xxxxxxxxxx
> Subject: RE: [cinjug-users] newbie trying to learn
> m-v-c
>
> Ah, I see. That works. However my original question
> is
> to pass an object back to the jsp page. The
> HttpServlet looks like this:
>
> **********BEGIN SERVLET********
> MemberValidateForm formToValidate = new
> MemberValidateForm();
> allOk =
>
formToValidate.validate(firstName,lastName,emailAddress,homePhone);
> if(allOk){
> toPage = "/MemberAdd";
> }else{
>
> req.setAttribute("formToValidate",formToValidate);
> }
> RequestDispatcher dispatcher;
> dispatcher = context.getRequestDispatcher(toPage);
> dispatcher.forward(req, res);
>
> **********END SERVLET********
>
> the jsp page looks like this:
>
> **********BEGIN JSP********
> <%@ taglib prefix="c"
> uri="http://java.sun.com/jstl/core"%>
> <%@ page import="java.util.*,
> com.bdi.www.members.MemberValidateForm" %>
> <%
> MemberValidateForm doThis= (MemberValidateForm)
> request.getAttribute("formToValidate");
> out.println(doThis.getFirstName());
> %>
> **********END JSP********
>
>
> MemberValidateForm looks like this:
>
>
> **********BEGIN MemberValidateForm********
>
> import java.util.*;
>
> public class MemberValidateForm {
>
> private String firstName;
> private String lastName;
> private String emailAddress;
> private String homePhone;
> private Hashtable errors;
>
> public boolean validate(String firstName,String
> lastName,String emailAddress,String homePhone) {
> boolean allOk=true;
> if (firstName.equals("")) {
> errors.put("firstName","Please enter your
> first
> name");
> firstName="";
> allOk=false;
> }
> if (lastName.equals("")) {
> errors.put("lastName","Please enter your last
> name");
> lastName="";
> allOk=false;
> }
> if (emailAddress.equals("") ||
> (emailAddress.indexOf('@') == -1)) {
> errors.put("emailAddress","Please enter a
> valid
> email address");
> emailAddress="";
> allOk=false;
> }
> if (homePhone.equals("")) {
> errors.put("homePhone","Please enter a valid
> home phone number");
> homePhone="";
> allOk=false;
> }
> return allOk;
> }
>
> public String getErrorMsg(String s) {
> String errorMsg =(String)errors.get(s.trim());
> return (errorMsg == null) ? "":errorMsg;
> }
>
> public MemberValidateForm() {
> firstName="";
> lastName="";
> emailAddress="";
> homePhone="";
> errors = new Hashtable();
> }
>
> public String getFirstName() {
> return firstName;
> }
>
> public String getLastName() {
> return lastName;
> }
>
> public String getEmailAddress() {
> return emailAddress;
> }
>
> public String getHomePhone() {
> return homePhone;
> }
>
> public void setFirstName(String fname) {
> firstName =fname;
> }
>
> public void setLastName(String lname) {
> lastName =lname;
> }
>
> public void setEmailAddress(String eml) {
> emailAddress=eml;
> }
>
> public void setHomePhone(String hp) {
> homePhone=hp;
> }
>
> public void setErrors(String key, String msg) {
> errors.put(key,msg);
> }
>
> }
> **********END MemberValidateForm********
>
>
> thanks
>
> --- "Jeykumar, Nattamai S. (LNG-DAY)"
> <nattamai.jeykumar@xxxxxxxxxxxxxx> wrote:
>
> > Try the following...
> >
> >
> > Typecast the object returned by
> > request.getAttribute("toPage");
> >
> > String tttt = (String)
> > request.getAttribute("toPage");
> >
> >
> >
> > Thanks,
> > Jey Kumar
> >
> >
> >
> > -----Original Message-----
> > From: sdgesa gaeharth
> > [mailto:pollux1234567890@xxxxxxxxx]
> > Sent: Wednesday, September 08, 2004 3:10 PM
> > To: Ted Tollefson
> > Cc: users@xxxxxxxxxx
> > Subject: RE: [cinjug-users] newbie trying to learn
> > m-v-c
> >
> >
> > For some reason I still get this error. I know its
> > something i am doing wrong that is really
> stupid!!!
> > I
> > just cant figure
> >
> > ******************
> > incompatible types
> > found : java.lang.Object
> > required: java.lang.String
> > String tttt = request.getAttribute("toPage");
> > ******************
> >
>
=== message truncated ===
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