Re: [Springframework-developer] Spring Webflow PR3 and Redirects

[Scott B. <sco...@ru...>]

Thanks that did the trick!  Works beautifully :-D

-Scott


Erwin Vervaet wrote:

> This is caused because of the ViewResolver(s) you have registered with 
> the DispatcherServlet. You don't seem to be using a 
> UrlBasedViewResolver (e.g. InternalResourceViewResolver), which picks 
> up on the redirect.
>
> Here's what's happening: I assume the value of the *service* string is 
> "https:/<machinename>:8443/contacts-cas/j_acegi_cas_security_check". 
> Since you are setting the redirect property of the view descriptor to 
> true, the FlowController.toModelAndView() method will actually create 
> a ModelAndView object with as a view name 
> "redirect:https:/<machinename>:8443/contacts-cas/j_acegi_cas_security_check". 
> This ModelAndView is passed back up to the DispatcherServlet which 
> tries to resolve it using a ViewResolver, as usual in Spring MVC. If 
> you have a UrlBasedViewResolver, it will recognize the "redirect:" 
> prefix and construct an appropriate RedirectView to redirect to the 
> specified URL.
>
> Erwin Vervaet
> erw...@er...
> ----- Original Message ----- From: "Scott Battaglia" 
> <sco...@ru...>
> To: <spr...@li...>
> Sent: Monday, May 23, 2005 7:43 PM
> Subject: Re: [Springframework-developer] Spring Webflow PR3 and Redirects
>
>
>> Erwin,
>>
>> Thanks for the response.
>>
>> One more question for you: is it possible to redirect to a specific 
>> url (rather than a view).  I tried creating a custom view descriptor 
>> creator that did the following:
>>
>> public class RedirectViewDescriptorCreator implements 
>> ViewDescriptorCreator {
>>
>>    public ViewDescriptor createViewDescriptor(RequestContext 
>> requestContext) {
>>        final String service = (String) 
>> ContextUtils.getAttributeFromFlowScope(requestContext, 
>> WebConstants.SERVICE);
>>        final String ticket = (String) 
>> ContextUtils.getAttributeFromFlowScope(requestContext, 
>> WebConstants.TICKET);
>>        final Map model = new HashMap();
>>       model.put(WebConstants.TICKET, ticket);
>>       ViewDescriptor descriptor = new ViewDescriptor(service, model);
>>        descriptor.setRedirect(true);
>>       return descriptor;
>>    }
>> }
>>
>> However, I get a an error message: javax.servlet.ServletException: 
>> Could not resolve view with name 
>> 'redirect:https:/<machinename>:8443/contacts-cas/j_acegi_cas_security_check' 
>> in servlet with name 'cas'
>>
>> Is there a proper way to handle redirects to URLs using Webflow?
>>
>> Thanks
>> -Scott
>>
>> Erwin Vervaet wrote:
>>
>>> Yes, that's a limitation of the current 
>>> RedirectViewDescriptorCreator: it only evaluates expressions in the 
>>> values of request attributes. That will certainly be made more 
>>> generic with the next release.
>>>
>>> For now you could do something like this:
>>>
>>> <end-state id="redirect" 
>>> view="class:com.my.CustomViewDescriptorCreator"/>
>>>
>>> and just implement a CustomViewDescriptorCreator for your case.
>>>
>>> Erwin Vervaet
>>> erw...@er...
>>> ----- Original Message ----- From: "Scott Battaglia" 
>>> <sco...@ru...>
>>> To: <spr...@li...>
>>> Sent: Monday, May 23, 2005 4:41 PM
>>> Subject: [Springframework-developer] Spring Webflow PR3 and Redirects
>>>
>>>
>>>> I've just started using PR3 of Webflow (nice stuff!!) and I'm 
>>>> trying to get the redirect views to work.
>>>>
>>>> It seems to be choking though on the following entry:
>>>> <end-state id="redirect" 
>>>> view="redirect:${flowScope.service}?ticket=${flowScope.ticket}"/>
>>>>
>>>> Is the above a valid statement?  It seems to not be evaluating the 
>>>> flowScope.service.
>>>>
>>>> This is the error I get:
>>>> javax.servlet.ServletException: Could not resolve view with name 
>>>> 'redirect:${flowScope.service}' in servlet with name 'cas'
>>>>
>>>> Thanks
>>>> -Scott
>>>>
>>>> -- 
>>>> Scott Battaglia
>>>> Application Developer, Architecture & Engineering Team
>>>> Enterprise Systems and Services, Rutgers University
>>>> v: 732.445.0097 | f: 732.445.5493 | sco...@ru...
>>>>
>>>>
>>>>
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>>>
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>>
>>
>>
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