I thought the view has been rendered once before the button is clicked.
My expected process is:
load page (Page A) --> click button --> show another page({Page B)
So, when the Page A is loaded, the view of this page is initialized, I
suppose? Then I click the button. At this point, the view has existed ?
The actual process is (from user's perspective):
load page(Page A) --> click button --> Page A reset and loaded again -->
click button (again) --> form submitted and another page shown(Page B).
Cheers,
Fan
David Delbecq-2 wrote:
>
> Extract from http://www.ibm.com/developerworks/library/j-jsf2/
> ---
> JSF lifecycle:
>
> 1. Restore view
> 2. Apply request values; process events
> 3. Process validations; process events
> 4. Update model values; process events
> 5. Invoke application; process events
> 6. Render response
>
> The JSF framework controller uses the view ID to look up the components
> for the current view. If the view doesn't already exist, the JSF
> controller creates it. If the view already exists, the JSF controller
> uses it. The view contains all the GUI components.
> This phase of the lifecycle presents three view instances: new view,
> initial view, and postback, with each one being handled differently.
> In the case of an /initial view/ (the first time a page is loaded), JSF
> creates an empty view. The empty view will be populated as the user
> causes events to occur. From an initial view, JSF advances directly to
> the render response phase.
> ---
>
> In your case, after your server restart, all views have been removed.
> That mean in first step you get a "initial view" that is wired to an
> immediate rendering. (Command and values you submit is thus ignored).
>
> One way around this, is to have your J2EE container (tomcat/JBoss/Other)
> preserve user sessions between restarts using serialization. That way,
> view are restored, because views are stored in user sessions.
>
>
> En l'instant précis du 20/08/07 11:48, Fan Shao s'exprimait en ces termes:
>> Hi there,
>>
>> I've written a JSF page using Facelets template. I have a form in the
>> page
>> and a button. Every time I restarted the webapp, the first time I click
>> the
>> button it just refreshes the page and resets all the input fields. After
>> that the button works normally with all the fields correctly submitted.
>>
>> This means I have to click the button once before I can do any work
>> everytime the server is restarted.
>>
>> Anyone has any idea about this problem?
>>
>
>
> --
> http://www.noooxml.org/
>
>
>
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