Thank you for your post and for your possible solutions. But I found another
way for using forwards to action. Just put the following lines in your
web.xml and all works well:
<filter-mapping>
<filter-name>struts</filter-name>
<url-pattern>/*</url-pattern>
<dispatcher>REQUEST</dispatcher>
<dispatcher>FORWARD</dispatcher>
</filter-mapping>
By default only requests are allowed but no forwards!
dusty wrote:
>
> First of all this is the third time I have tried to respond as I keep
> trying to use ctrl+W to select a word while editing in this text area and
> closing the browser tab. (IDEA muscle memory).
>
> Ok, so my first question is why have a Search action and then a separate
> SearchResults action? What does SearchResults do that Search does not do
> or vice versa? I would expect you would just submit the form to an action
> called Search, find stuff there and then dispatch to a results page from
> there. Your form can do a GET rather than POST and that will make things
> like the back button and refresh work better. Especially since
> technically you are not changing state a GET is appropriate.
>
> There may be a few things you can do:
>
> #1 - Show the user the search results with the error, asking them to try
> again.
> Dispatch to the search results page:
> <action name="search" class="com.foo.SearchAction">
> <result type="tiles">searchResultPage</result>
> <result name="input" type="tiles">searchResultPage</result>
> <result name="error" type="tiles">searchResultPage</result>
> </action>
>
> #2 - Use the MessageStoreInterceptor and a querystring param to redirect
> to the original action
> With the MessageStoreInterceptor actionMessages, actionErrors and
> fieldErrors will be available after the redirect. Include a request param
> with the offending value and have your original action look for that to
> populate the search form. For anything to survive a redirect it has to go
> in the session (MessageStore) or be part of the redirect url.
> <action name="search" class="com.foo.SearchAction">
> <result type="tiles">searchResultPage</result>
> <result name="input"
> type="redirect">${originalAction}?query=${query}</result>
> <result name="error"
> type="redirect">${originalAction}?query=${query}</result>
> </action>
>
>
> #3 - Remove the validation/workflow interceptors from the Search action
> and hand validate the value in your Search action method. If there is an
> error then return a String for the tiles result you want.
> This is not my favorite option
> <action name="search" class="com.foo.SearchAction">
> <result type="tiles">searchResultPage</result>
> <result name="welcome" type="tiles">welcomePage</result>
> <result name="product" type="tiles">productPage</result>
> etc...
> </action>
>
> I think you are correct that this is a common pattern. When I have
> implemented a QuickSearch in the global nav, I use option #1 and display
> any errors or results on a results page. I think what makes your pattern
> unique is that you want to display the error in the original page.
>
> p.s. I am tiles ignorant so I am treating them like they were a JSP page
> since they seem to both use the dispatch result type. (woot SiteMesh!)
>
>
> Dirk Forchel wrote:
>>
>> I could not resolve my problem yet. How can I use the "dispatch" result
>> type to forward to actions (or maybe tiles definitions) rather than to
>> JSPs?
>> In my application are some situations where I have to forward the error
>> messages or the field validation errors to to a different action. I can
>> not use JSPs cos we use Tiles.
>> Let's assume we have four different Pages. A welcome-page displaying some
>> welcome information and a "search-form", a category-page displaying a
>> list of products and the same "search-form", a product page displaying
>> detailed product information and the same "search-form" and a
>> "search-result-page" displaying a list of products and as well the same
>> "search-form".
>> This is the struts config how it could look like:
>>
>> <action name="welcome">
>> <result type="tiles">welcomePage</result>
>> </action>
>>
>> <action name="category" class="com.foo.CategoryAction">
>> <result type="tiles">categoryPage</result>
>> </action>
>>
>> <action name="product" class="com.foo.ProductAction">
>> <result type="tiles">productPage</result>
>> </action>
>>
>> <action name="search" class="com.foo.SearchAction">
>> <result type="redirect-action">searchResult</result>
>> <result name="input" type="dispatch">sameAction</result>
>> <result name="error" type="dispatch">sameAction</result>
>> </action>
>>
>> <action name="searchResult" class="com.foo.SearchListAction">
>> <result type="tiles">searchResultPage</result>
>> </action>
>>
>> I do not display the tiles definition here. But it is important to me to
>> have a "forward" to an action defintion rather than a "redirect". Once I
>> redirect, I'm going to lose request-scoped data. "redirect" to actions
>> works perfectly but "forward" doesn't. In my struts configuration
>> sameAction should be dynamically substituted with the action name or the
>> action call where the form is included, either "/welcome.action",
>> "/product.action", "/category.action" or even "/searchResult.action".
>> Has somebody any idea how to accomplish this? I reckon this is a almost
>> common workflow.
>>
>
>
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