Much thanks for this clearfying hack.
In my opinion we should look for a way to identify the pressed button without
refering the label, cause this can be change due to internalization (maybe with
an German locale "<< Prev" Button will be labeled "<< Zur�ck").
May be someone out there knows a way to have an fixed value that will be passed
back beside the label.
Regards
Uwe
Tharwat Abdul-Malik schrieb:
> I use something like the following in my struts-config.xml file:
>
> <action path="/signup"
> type="SignupAction"
> name="signupForm"
> scope="session"
> input="page1.jsp">
> <forward name="page1" path="page1jsp"/>
> <forward name="page2" path="page2.jsp"/>
> <forward name="page3" path="page3.jsp"/>
> <forward name="page4" path="page4.jsp"/>
> <forward name="success" path="confirm.jsp"/>
> </action>
>
> In page1.jsp I declare the following buttons:
>
> <html:hidden property="page" value="1"/>
> <html:submit>
> <bean:message key="button.next"/>
> </html:submit>
>
> Page2.jsp:
>
> <html:hidden property="page" value="2"/>
> <html:submit>
> <bean:message key="button.prev"/>
> </html:submit>
>
> <html:submit>
> <bean:message key="button.next"/>
> </html:submit>
>
> Page3.jsp
>
> <html:hidden property="page" value="3"/>
> <html:submit>
> <bean:message key="button.prev"/>
> </html:submit>
>
> <html:submit>
> <bean:message key="button.next"/>
> </html:submit>
>
> Page4.jsp
>
> <html:hidden property="page" value="4"/>
> <html:submit>
> <bean:message key="button.prev"/>
> </html:submit>
>
> <html:submit>
> <bean:message key="button.finish"/>
> </html:submit>
>
> In my SignupForm.java I define all fields for each page. Then I have a
> switch statement in the validate method to validate the data for each page:
>
> public ActionErrors validate(ActionMapping mapping, HttpServletRequest
> request)
> {
>
> ActionErrors errors = new ActionErrors();
> switch (page)
> {
> case 1:
> // Validate fields on page 1
> case 2:
> ///
> }
> return errors;
> }
>
> Finally in the SignupAction.java I check for which button was pressed and
> return the next or previous page:
>
> public ActionForward perform(ActionMapping mapping,
> ActionForm form,
> HttpServletRequest request,
> HttpServletResponse response)
> throws IOException, ServletException
> {
>
> HttpSession session = request.getSession();
> SignupForm signupform = (SignupForm) form;
> int page = signupform.getPage();
>
> String label = request.getParameter("submit");
> if (label != null)
> {
> if ("<< Prev".equals(label)) // Previous was
> pressed
> {
> return mapping.findForward("page"+(page-1));
> }
> else if ("Next >>".equals(label)) // Next was pressed
> {
> return mapping.findForward("page"+(page+1)); //
> Finished was pressed
> }
> else if ("Finish".equals(label))
> {
> // Do finish work, add data to database, whatever
> }
> ..... return(mapping.findForward("success"));
>
> I'm new to struts (about 2 weeks now). I tried to find examples but couldn't
> find any. So I hacked out this. Perhaps if someone has a better way we can
> all learn something new.
>
> I hope this helps.
>
> ----- Original Message -----
> From: <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Tuesday, April 24, 2001 9:51 AM
> Subject: wizard style example, anywhere?
>
> > Hello struts-users,
> >
> > I am very new to Struts (or JSP for that matter), and in need of
> > some examples that I can get my hands on.
> >
> > Specifically, an application that uses "wizard" style, multiple-page
> > input forms would be very nice. Couple of Struts documents I looked
> > mention that Struts works well with wizard style application, but I get
> > confused when it comes to writing struts-config.xml, JSPs that share
> > the same ActionForm or Action, etc.. I gotta see it working before I
> > start building mine.
> >
> > Good examples, anywhere, anyone?
> >
> > thanks,
> >
> > - kazumi
> >
