user Digest 9 Jul 2008 16:05:29 -0000 Issue 8130

Topics (messages 188617 through 188639):

Re: [S2] Struts configuration vizualization
 188617 by: Don Brown
 188619 by: Musachy Barroso
 188621 by: Milan Milanovic
 188622 by: Milan Milanovic
 188623 by: Milan Milanovic
 188624 by: Milan Milanovic
 188626 by: newton.dave.yahoo.com
 188627 by: Gabriel Belingueres
 188629 by: Milan Milanovic
 188630 by: Milan Milanovic
 188632 by: newton.dave.yahoo.com
 188633 by: Milan Milanovic
 188634 by: Milan Milanovic
 188635 by: newton.dave.yahoo.com

Re: Getting Struts2 Parameters?
 188618 by: Jim Kiley

Re: [S2] s:iterator tag - var or id
 188620 by: newton.dave.yahoo.com

Re: Action method specific custom validation
 188625 by: Gabriel Belingueres

Re: Injecting singleton beans into Servlets
 188628 by: Kleiderman, Matthew
 188631 by: Musachy Barroso

[OT] Re: RE: RE: Re: [S2] Struts configuration vizualization
 188636 by: Antonio Petrelli
 188637 by: newton.dave.yahoo.com

Handling Exceptions in Action constructors
 188638 by: Lyallex
 188639 by: Jim Kiley

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Happens to the best of us. :-)

On Tue, Jul 8, 2008 at 5:38 PM, Chris Miles <chris@(protected):

> Argh, You know I could not see that at all?
>
> Thank you :)
>
> Chris
> ----- Original Message ----- From: "Jim Kiley" <jhkiley@(protected)>
> To: "Struts Users Mailing List" <user@(protected)>
> Sent: Monday, July 07, 2008 10:52 PM
> Subject: Re: Getting Struts2 Parameters?
>
>
> Your setter is private. It needs to be public.
>>
>> On Mon, Jul 7, 2008 at 5:49 PM, Chris Miles <chris@(protected):
>>
>> No exceptions.
>>>
>>> The action class is as follows.
>>>
>>> public class AddToCartAction extends ActionSupport implements Action {
>>> private String productId = "";
>>> private int quantity = 0;
>>>
>>> private void setProductId(String productId) {
>>>    this.productId = productId;
>>> }
>>>
>>> private void setQuantity(int quantity) {
>>>    this.quantity = quantity;
>>> }
>>>
>>> public String execute() {
>>>    System.out.println("Product Id = " + productId);
>>>    System.out.println("Quantity = " + quantity);
>>>    return Action.SUCCESS;
>>> }
>>> }
>>>
>>> My struts.xml is
>>>
>>> <?xml version="1.0" encoding="UTF-8" ?>
>>> <!DOCTYPE struts PUBLIC
>>>    "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
>>>    "http://struts.apache.org/dtds/struts-2.0.dtd">
>>>
>>> <struts>
>>> <package name="default" extends="struts-default" namespace="/checkout">
>>>    <interceptors>
>>>
>>>       <interceptor name="static-params"
>>> class="com.opensymphony.xwork2.interceptor.StaticParametersInterceptor"
>>> />
>>>       <interceptor name="params"
>>> class="com.opensymphony.xwork2.interceptor.ParametersInterceptor" />
>>>
>>>       <interceptor-stack name="defaultStack">
>>>         <interceptor-ref name="static-params" />
>>>         <interceptor-ref name="params" />
>>>       </interceptor-stack>
>>>
>>>    </interceptors>
>>>
>>>    <default-interceptor-ref name="defaultStack"/>
>>>
>>>    <!-- Product Form / addToCart -->
>>>    <action name="viewCart"
>>> class="cakeinabox.struts2.actions.AddToCartAction">
>>>       <result name="success">/jsp/checkout/viewCart.jsp</result>
>>>       <result name="error">/jsp/checkout/error.jsp</result>
>>>    </action>
>>> </package>
>>> </struts>
>>>
>>> and my JSP is:
>>>
>>> <form action="/checkout/addToCart.action" method="GET">
>>>       <input type="hidden" value="<%=pId%>" name="productId">
>>>       <input type="hidden" value="1" name="quantity">
>>> ..............
>>>
>>> pId renders as a valid productId in the HTML - this has been checked.
>>>
>>> I have also tried a POST rather than a GET with no joy.
>>>
>>> many thanks
>>>
>>> Chrix
>>> ----- Original Message ----- From: "Musachy Barroso" <musachy@(protected)>
>>> To: "Struts Users Mailing List" <user@(protected)>
>>> Sent: Monday, July 07, 2008 4:46 PM
>>> Subject: Re: Getting Struts2 Parameters?
>>>
>>>
>>> Are there any exceptions in the logs? Does your class implement
>>>
>>>> ModelDriven? if you posts the relevant parts of your configuration
>>>> (jsp fragment, action and xml fragment), it will be easier to get
>>>> help.
>>>>
>>>> musachy
>>>>
>>>> On Mon, Jul 7, 2008 at 11:38 AM, <chris@(protected):
>>>>
>>>> In my struts.xml I have set up a stack for "defaultStack" to include
>>>>> the
>>>>> Parameters Interceptor, and I have then set the default stack to
>>>>> "defaultStack".
>>>>>
>>>>> In my action class I have set up a setter injector called
>>>>> setProductId(String productId) which sets to a local variable.
>>>>>
>>>>> I then have a form which points to that action, which is
>>>>> AddToCart.action
>>>>> to be precise. I have an hideen HTML input with the name "productId"
>>>>> and
>>>>> a
>>>>> value set, however when I submit the form the productId variable in the
>>>>> action class has not been set?
>>>>>
>>>>> Is there something obvious that I might be missing?
>>>>>
>>>>> Many thanks and best regards,
>>>>>
>>>>> Chris
>>>>>
>>>>> ---------------------------------------------------------------------
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>>>>>
>>>>>
>>>>>
>>>>>
>>>>
>>>> --
>>>> "Hey you! Would you help me to carry the stone?" Pink Floyd
>>>>
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>>>>
>>>>
>>>> --
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>>>> Checked by AVG Free Edition.
>>>> Version: 7.5.446 / Virus Database: 268.18.12/724 - Release Date:
>>>> 16/03/2007 12:12
>>>>
>>>>
>>>>
>>>>
>>> ---------------------------------------------------------------------
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>>>
>>>
>>>
>>
>> --
>> Jim Kiley
>> Technical Consultant | Summa
>> [p] 412.258.3346 [m] 412.445.1729
>> http://www.summa-tech.com
>>
>>
>
>
> --------------------------------------------------------------------------------
>
>
> Internal Virus Database is out-of-date.
> Checked by AVG Free Edition.
> Version: 7.5.446 / Virus Database: 268.18.12/724 - Release Date: 16/03/2007
> 12:12
>
>
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>


--
Jim Kiley
Technical Consultant | Summa
[p] 412.258.3346 [m] 412.445.1729
http://www.summa-tech.com

I think in this situation I would have SomeAction implement Preparable, and
put someComponent's initialization into the prepare() method, if I could get
away with it. I realize that might not be possible in your situation, but
not knowing more details it's my first suggestion.

jk

On Wed, Jul 9, 2008 at 12:00 PM, Lyallex <lyallex@(protected):

> Hi
>
> I have a question about handling Exceptions in Action constructors
>
> I have the following constructor in an Action
>
>     public SomeAction() throws BusinessComponentException {
>        someComponent = new SomeBusinessComponent();
>     }
>
> Now when an instance of this Action is instantiated it may be the case
> that the SomeBusinessComponent
> constructor may throw a BusinessComponentException, the question is
> how to handle this.
>
> As an aside It's also the case that the methods of this action may
> also throw such an Exception
> but I can manage that fine.
>
> The exception trace reveals the following
>
> Unable to instantiate Action, ...
>
> com.opensymphony.xwork2.DefaultActionInvocation.createAction (DefaultActionInvocation.java:294)
>
> I tried to handle this by putting the following in struts.xml
>
> <global-results>
>  <result name="error">/friendlyError.jsp</result>
> </global-results>
>
> <global-exception-mappings>
>  <exception-mapping exception="java.lang.Exception" result="error"/>
> </global-exception-mappings>
>
> But no joy. I think this is because of the way the Exception
> interceptor does it's thing.
>
> Here's what my book (Struts2 in Action) says
>
> ...When the exception interceptor executes during its postprocessing
> phase ... Hmm, that would explain it, there is no post processing
> phase because execution doesn't get that far. (I think).
>
> Does anyone have a pattern for handling exceptions in Action constructors ?
>
> many TsIA
>
> lyallex
>
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>
>


--
Jim Kiley
Technical Consultant | Summa
[p] 412.258.3346 [m] 412.445.1729
http://www.summa-tech.com