user Digest 15 Jul 2009 14:59:13 -0000 Issue 8752

Topics (messages 200726 through 200739):

Re: JSON Plugin and S:Action
 200726 by: Chris Pratt
 200730 by: Wes Wannemacher

Re: how to configure struts2 for /*.action?
 200727 by: Dave Newton
 200728 by: 谢冬鸣
 200729 by: ravi_eze

Struts2 Action Class and EJB Injection
 200731 by: Robin Mannering
 200732 by: Wes Wannemacher
 200734 by: Robin Mannering
 200735 by: Wes Wannemacher
 200737 by: Robin Mannering
 200738 by: Wes Wannemacher
 200739 by: Robin Mannering

ParameterInterceptor problem
 200733 by: Say Jon
 200736 by: Robert Graf-Waczenski

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Ok, now I'm totally confused. The documentation at
http://cwiki.apache.org/S2PLUGINS/json-plugin.html says that the plug-in
required 2.0.6 or greater. It clearly did not support 2.1.2, but it seems
to support 2.1.6. Is the documentation wrong, should that say 2.1.6 instead
of 2.0.6?
(*Chris*)

On Tue, Jul 14, 2009 at 11:16 PM, Chris Pratt <thechrispratt@(protected):

> Ok, calling it from AJAX, instead of <s:action>, seems to work, but
> unfortunately it appears the JSON Plugin isn't compatible with Struts 2.1.
> I'm currently using 2.1.2, but the documentation says that it works with
> 2.0.6. Is there any plan to update it to work with 2.1? What I'm seeing
> is:
>
> java.lang.NoSuchMethodError:
> com.opensymphony.xwork2.ActionContext.get(Ljava/lang/String;)Ljava/lang/Object;
>      at
> com.googlecode.jsonplugin.JSONResult.execute(JSONResult.java:157)
>      at
> com.opensymphony.xwork2.DefaultActionInvocation.executeResult (DefaultActionInvocation.java:355)
>      at
> com.opensymphony.xwork2.DefaultActionInvocation.invoke (DefaultActionInvocation.java:259)
>      ...
>
> Thanks.
>  (*Chris*)
>
>
> On Tue, Jul 14, 2009 at 8:33 AM, Chris Pratt <thechrispratt@(protected):
>
>> Don't know, I was trying to initialize the variable using the same action
>> that would be used to update it. And, because of this problem, I haven't
>> been able to initialize it. Maybe I'll give it a try later.
>>   (*Chris*)
>>
>>
>> On Tue, Jul 14, 2009 at 7:49 AM, Musachy Barroso <musachy@(protected):
>>
>>> Never thought of this use case before. Does it work if you use the
>>> action directly, instead of calling from a jsp?
>>>
>>> musachy
>>>
>>> On Mon, Jul 13, 2009 at 11:17 PM, Chris Pratt<thechrispratt@(protected)>
>>> wrote:
>>> > I'm having a problem using <s:action executeResult="true"> with an
>>> action
>>> > whose result type is json. It doesn't insert the results. My Action
>>> is
>>> > something like:
>>> >
>>> > public class InitCalendarAction {
>>> > private List<List<String>> json;
>>> >
>>> > /**
>>> >  * Get the JSON Object to be Serialized
>>> >  *
>>> >  * @return JSON Object
>>> >  */
>>> > public Object getJson () {
>>> >   return json;
>>> > } //getJson
>>> >
>>> > /**
>>> >  * Prepare the Object to be Serialized using JSON
>>> >  *
>>> >  * @return "success";
>>> >  */
>>> > public String execute () {
>>> >   Category cat;
>>> >   Category[] daily = user.getPlan().getDailyCategories();
>>> >   Calendar cal = Calendar.getInstance();
>>> >   cal.set(Calendar.DATE,1);
>>> >   int first = cal.get(Calendar.DAY_OF_WEEK) - 1;
>>> >   List<String> row;
>>> >   json = new ArrayList<List<String>>();
>>> >   for(int day = 1;day <= cal.getMaximum(Calendar.DATE);day++) {
>>> >    row = new ArrayList<String>();
>>> >    row.add("true");
>>> >    cat = daily[(day + first) % 7];
>>> >    row.add(cat.name().toLowerCase());
>>> >    row.add(cat.name());
>>> >    json.add(row);
>>> >   }
>>> >   return "success";
>>> > } //execute
>>> >
>>> > } //*InitCalendarAction
>>> >
>>> > I have the action defined as:
>>> >
>>> >   <action name="init-calendar" class="initCalendarAction">
>>> >    <result type="json">
>>> >     <param name="root">json</param>
>>> >    </result>
>>> >   </action>
>>> >
>>> > In my JSP, I have:
>>> >
>>> >   var hilights = "<s:action name='init-calendar' namespace='/'
>>> > executeResult='/'/>";
>>> >
>>> > But instead of the expected:
>>> >
>>> >   var hilights = "[ [ "true", "cardio", "Cardio"], [ "true",
>>> "upperbody",
>>> > "Upper Body"] ... ]";
>>> >
>>> > I get:
>>> >   var hilights = "";
>>> >
>>> > There are no errors in the logs and when I write out each row in the
>>> array,
>>> > everything is there as expected, but there's just no output. Any
>>> idea's
>>> > why?
>>> > (*Chris*)
>>> >
>>>
>>>
>>>
>>> --
>>> "Hey you! Would you help me to carry the stone?" Pink Floyd
>>>
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>>> To unsubscribe, e-mail: user-unsubscribe@(protected)
>>> For additional commands, e-mail: user-help@(protected)
>>>
>>>
>>
>

Hi ravi_eze,
One of our projects use Struts2, we have two url patterns /*.action and
/webservice/*, the first one is served by Struts2 and the second is served
by CXF framework directly.
is this what you want?

On Wed, Jul 15, 2009 at 11:06, ravi_eze <ravichandrac@(protected):

>
> i didnt get u,
>
> did u mean that we cant map only *.action to struts filter? Or u were
> telling of some workaround? Why does struts put this restriction that all
> urls should pass through him? And Why does he put restrictions at container
> level.
>
> see web.xml is the container level and i have my own applications/ filters
> in it. I should be given the choice to decide what urls should go to what
> and what not! Now why does struts come at this level at all??; Now that it
> comes what is the work around? The Filter dispatcher documentations says
> not
> to use other than '/*' for url pattern. He doesnt say what i need to do if
> at all i cant put /* there?
>
> Please help, this is unexpected behavior of our application. We were
> thinking all are fine, but suddenly this file upload didnt work (of prev
> jsp
> application).
>
> any help/ ponters are of great help.
>
> regards,
> ravi
>
>
> Wes Wannemacher wrote:
> >
> > 2009/7/14 谢冬鸣 <msys.xdm@(protected)>:
> >> Hi david,
> >> I have another question, I want to forward my Struts2 result to one jsp
> >> page
> >> which included in one jar file, how can I locate the jsp file? You said
> >> "...there are several Struts2 jars that house css and js files...", do
> >> you
> >> have any idea how to get these files?
> >>
> >> Thanks
> >>
> >> On Tue, Jul 14, 2009 at 23:29, Kawczynski, David
> >> <david_kawczynski@(protected)
> >>> wrote:
> >>
> >>> I was in the same boat...
> >>> One of my clients use apache httpd for all static content
> >>> and tomcat for all dynamic content... there are several
> >>> Struts2 jars that house css and js files. If you don't
> >>> map everything to the Struts2 filter your Struts2 app
> >>> won't be as full-featured as it could be. (Javascript
> >>> validation won't work, any themed presentation will appear
> >>> quite plain, etc...)
> >>>
> >
> > As far as I know, the content that is served by struts directly (css,
> > js and image files) are always mapped to URLs that start with /struts.
> > It might be possible to create two mappings, one to /struts/* and
> > another to *.action. As for the question above, I don't think there is
> > any good way to serve a JSP out of a jar file. Rather than packaging
> > your JSPs into your jar, can you configure your build to copy the JSP
> > somewhere into your app so that it can be served traditionally? If you
> > have to put the content into a jar, maybe try looking at freemarker.
> > We use freemarker internally for generating tag output because we can
> > package it in the jar files and it is more general-purpose than JSP.
> >
> > -Wes
> >
> > --
> > Wes Wannemacher
> > Author - Struts 2 In Practice
> > Includes coverage of Struts 2.1, Spring, JPA, JQuery, Sitemesh and more
> > http://www.manning.com/wannemacher
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: user-unsubscribe@(protected)
> > For additional commands, e-mail: user-help@(protected)
> >
> >
> >
>
> --
> View this message in context:
> http://www.nabble.com/how-to-configure-struts2-for--*.action--tp24481000p24491177.html
> Sent from the Struts - User mailing list archive at Nabble.com.
>
>
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--
*********************************************
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MAIL(Gtalk):msys.xdm@(protected)
Mobie:+86-15071342225

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俺终身奋斗的最低革命纲领：农妇--山泉--有点儿田

Hello,

Platform : Struts 2, EJB 3.0, Glassfish 2.1

I wish to obtain a reference to an EJB using injection.

This works fine within a servlet, but from within a Struts2 action
class, all references to injected EJB variables hold a 'null' reference.

I've included a portion of my action class below.

I'm confused as to why a Servlet has no trouble using injection as
compared to the Struts 2 action class. Both the servlet and action
class reside in the same Web application.

Does anybody have any ideas?

/public class UserAction extends ActionSupport implements
ServletRequestAware, SessionAware {

  private static Logger logger = Logger.getLogger(SetupServlet.class);
 
  @EJB
  SetupServiceBeanLocal setupService;
 
  @EJB
  UserServiceBeanLocal userService;  

...
}/

Many thanks for the prompt and detailed reply.

I understand why the use of injection does not work now within a Struts2
action class.

However, there only seems one EJB plugin available, which doesn't
actually have a download available and hasn't had for some time it appears.

http://code.google.com/p/struts2ejb3/downloads/list

I'm wary to trust in a plugin that doesn't appear to be currently
maintained (available to download).

Is there anybody that is using Struts2 as the 'frontend' to an EJB 3
'backend' and what solution do you currently employ.

Thanks
Robin

Wes Wannemacher wrote:
> The difference is that the container did not instantiate your struts
> action, struts did. There are EJB plugins available, check the plugin
> registry.
>
> http://cwiki.apache.org/S2PLUGINS/home.html
>
> The ones I have seen are based on injection via interceptor. I've
> toyed with the notion of creating an ObjectFactory based plugin so
> that struts can delegate creation of action classes to the ejb
> container. This would allow for injection for more than just @EJB
> (@(protected)).
>
> The only issue is that it doesn't seem like we see much traffic on
> here from ejb users. Would anyone else be interested in an
> ObjectFactory based plugin? If so, would any of you also want it to
> work with Spring? The interceptor-based solution works good because it
> doesn't interfere with object-creation-based plugins like
> spring/guice/etc.
>
> -Wes
>
> On Wed, Jul 15, 2009 at 9:21 AM, Robin Mannering<robin@(protected):
>  
>> Hello,
>>
>> Platform : Struts 2, EJB 3.0, Glassfish 2.1
>>
>> I wish to obtain a reference to an EJB using injection.
>>
>> This works fine within a servlet, but from within a Struts2 action class,
>> all references to injected EJB variables hold a 'null' reference.
>>
>> I've included a portion of my action class below.
>>
>> I'm confused as to why a Servlet has no trouble using injection as compared
>> to the Struts 2 action class. Both the servlet and action class reside in
>> the same Web application.
>>
>> Does anybody have any ideas?
>>
>> /public class UserAction extends ActionSupport implements
>> ServletRequestAware, SessionAware {
>>
>>  private static Logger logger = Logger.getLogger(SetupServlet.class);
>>   @EJB
>>  SetupServiceBeanLocal setupService;
>>   @EJB
>>  UserServiceBeanLocal userService;
>> ...
>> }/
>>
>>  
>
>
>
>  
> ------------------------------------------------------------------------
>
>
> No virus found in this incoming message.
> Checked by AVG - www.avg.com
> Version: 8.5.387 / Virus Database: 270.13.14/2238 - Release Date: 07/14/09 18:03:00
>
>  

Hi Wes,

I found a resource on the web that seems to be a simpler solution:

InitialContext ic = new InitialContext();
UserServiceBeanLocal userService = (UserServiceBeanLocal)
ic.lookup(UserServiceBeanLocal.class.getName());

As in the web resource I found, it was necessary to change @Local to
@Remote in the session bean for it to be found correctly.

It worked perfectly using the above.

Here is a link to the resource. What do you think of this solution?

http://www.coderanch.com/t/58279/Struts/Connecting-ejb-session-bean-from

Thanks
Robin

Wes Wannemacher wrote:
> You are right, there is only one, the other one in that list is a
> jboss-ejb plugin. Take a look at the source for the plugin, it is not
> particularly complex and I know the author is lurking around here
> somewhere. I would suggest that you do one of two things -
> 1. Create an interceptor, probably identical to the one in the plugin.
> If you have troubles, bring them to the list, we'll help.
> 2. Create an object factory implementation that creates actions using
> your container's semantics. Again, if you have troubles, bring 'em
> back here, we'll help you.
>
> -Wes
>
> On Wed, Jul 15, 2009 at 9:48 AM, Robin Mannering<robin@(protected):
>  
>> Many thanks for the prompt and detailed reply.
>>
>> I understand why the use of injection does not work now within a Struts2
>> action class.
>>
>> However, there only seems one EJB plugin available, which doesn't actually
>> have a download available and hasn't had for some time it appears.
>>
>> http://code.google.com/p/struts2ejb3/downloads/list
>>
>> I'm wary to trust in a plugin that doesn't appear to be currently maintained
>> (available to download).
>>
>> Is there anybody that is using Struts2 as the 'frontend' to an EJB 3
>> 'backend' and what solution do you currently employ.
>>
>> Thanks
>> Robin
>>
>> Wes Wannemacher wrote:
>>  
>>> The difference is that the container did not instantiate your struts
>>> action, struts did. There are EJB plugins available, check the plugin
>>> registry.
>>>
>>> http://cwiki.apache.org/S2PLUGINS/home.html
>>>
>>> The ones I have seen are based on injection via interceptor. I've
>>> toyed with the notion of creating an ObjectFactory based plugin so
>>> that struts can delegate creation of action classes to the ejb
>>> container. This would allow for injection for more than just @EJB
>>> (@(protected)).
>>>
>>> The only issue is that it doesn't seem like we see much traffic on
>>> here from ejb users. Would anyone else be interested in an
>>> ObjectFactory based plugin? If so, would any of you also want it to
>>> work with Spring? The interceptor-based solution works good because it
>>> doesn't interfere with object-creation-based plugins like
>>> spring/guice/etc.
>>>
>>> -Wes
>>>
>>> On Wed, Jul 15, 2009 at 9:21 AM, Robin Mannering<robin@(protected)>
>>> wrote:
>>>
>>>    
>>>> Hello,
>>>>
>>>> Platform : Struts 2, EJB 3.0, Glassfish 2.1
>>>>
>>>> I wish to obtain a reference to an EJB using injection.
>>>>
>>>> This works fine within a servlet, but from within a Struts2 action class,
>>>> all references to injected EJB variables hold a 'null' reference.
>>>>
>>>> I've included a portion of my action class below.
>>>>
>>>> I'm confused as to why a Servlet has no trouble using injection as
>>>> compared
>>>> to the Struts 2 action class. Both the servlet and action class reside
>>>> in
>>>> the same Web application.
>>>>
>>>> Does anybody have any ideas?
>>>>
>>>> /public class UserAction extends ActionSupport implements
>>>> ServletRequestAware, SessionAware {
>>>>
>>>> private static Logger logger = Logger.getLogger(SetupServlet.class);
>>>>   @EJB
>>>> SetupServiceBeanLocal setupService;
>>>>   @EJB
>>>> UserServiceBeanLocal userService;
>>>> ...
>>>> }/
>>>>
>>>>
>>>>      
>>>
>>> ------------------------------------------------------------------------
>>>
>>>
>>> No virus found in this incoming message.
>>> Checked by AVG - www.avg.com Version: 8.5.387 / Virus Database:
>>> 270.13.14/2238 - Release Date: 07/14/09 18:03:00
>>>
>>>
>>>    
>
>
>
>  
> ------------------------------------------------------------------------
>
>
> No virus found in this incoming message.
> Checked by AVG - www.avg.com
> Version: 8.5.387 / Virus Database: 270.13.14/2238 - Release Date: 07/14/09 18:03:00
>
>  

Yes, using annotations would be the ideal method.

I think I remember reading that declaring beans as 'remote' when this is
not that case, may cause unnecessary serialization/deserialization as
calls are supposedly being made remotely. Depending on the EJB app
server configuration.

Obviously, this could cause significant overhead when returning large
result sets from a session bean.

I've yet to find where I read that but will update this thread if/when I do.

Robin

Wes Wannemacher wrote:
> I don't see anything wrong with that. I'd still like to eventually
> create a plugin that removes the need to do that in your execute
> method. The EJB spec added those annotations, so I'd like to figure
> out a way to honor them (cleanly).
>
> -Wes
>
> On Wed, Jul 15, 2009 at 10:37 AM, Robin Mannering<robin@(protected):
>  
>> Hi Wes,
>>
>> I found a resource on the web that seems to be a simpler solution:
>>
>> InitialContext ic = new InitialContext();
>> UserServiceBeanLocal userService = (UserServiceBeanLocal)
>> ic.lookup(UserServiceBeanLocal.class.getName());
>>
>> As in the web resource I found, it was necessary to change @Local to @Remote
>> in the session bean for it to be found correctly.
>>
>> It worked perfectly using the above.
>>
>> Here is a link to the resource. What do you think of this solution?
>>
>> http://www.coderanch.com/t/58279/Struts/Connecting-ejb-session-bean-from
>>
>> Thanks
>> Robin
>>
>> Wes Wannemacher wrote:
>>  
>>> You are right, there is only one, the other one in that list is a
>>> jboss-ejb plugin. Take a look at the source for the plugin, it is not
>>> particularly complex and I know the author is lurking around here
>>> somewhere. I would suggest that you do one of two things -
>>> 1. Create an interceptor, probably identical to the one in the plugin.
>>> If you have troubles, bring them to the list, we'll help.
>>> 2. Create an object factory implementation that creates actions using
>>> your container's semantics. Again, if you have troubles, bring 'em
>>> back here, we'll help you.
>>>
>>> -Wes
>>>
>>> On Wed, Jul 15, 2009 at 9:48 AM, Robin Mannering<robin@(protected)>
>>> wrote:
>>>
>>>    
>>>> Many thanks for the prompt and detailed reply.
>>>>
>>>> I understand why the use of injection does not work now within a Struts2
>>>> action class.
>>>>
>>>> However, there only seems one EJB plugin available, which doesn't
>>>> actually
>>>> have a download available and hasn't had for some time it appears.
>>>>
>>>> http://code.google.com/p/struts2ejb3/downloads/list
>>>>
>>>> I'm wary to trust in a plugin that doesn't appear to be currently
>>>> maintained
>>>> (available to download).
>>>>
>>>> Is there anybody that is using Struts2 as the 'frontend' to an EJB 3
>>>> 'backend' and what solution do you currently employ.
>>>>
>>>> Thanks
>>>> Robin
>>>>
>>>> Wes Wannemacher wrote:
>>>>
>>>>      
>>>>> The difference is that the container did not instantiate your struts
>>>>> action, struts did. There are EJB plugins available, check the plugin
>>>>> registry.
>>>>>
>>>>> http://cwiki.apache.org/S2PLUGINS/home.html
>>>>>
>>>>> The ones I have seen are based on injection via interceptor. I've
>>>>> toyed with the notion of creating an ObjectFactory based plugin so
>>>>> that struts can delegate creation of action classes to the ejb
>>>>> container. This would allow for injection for more than just @EJB
>>>>> (@(protected)).
>>>>>
>>>>> The only issue is that it doesn't seem like we see much traffic on
>>>>> here from ejb users. Would anyone else be interested in an
>>>>> ObjectFactory based plugin? If so, would any of you also want it to
>>>>> work with Spring? The interceptor-based solution works good because it
>>>>> doesn't interfere with object-creation-based plugins like
>>>>> spring/guice/etc.
>>>>>
>>>>> -Wes
>>>>>
>>>>> On Wed, Jul 15, 2009 at 9:21 AM, Robin Mannering<robin@(protected)>
>>>>> wrote:
>>>>>
>>>>>
>>>>>      
>>>>>> Hello,
>>>>>>
>>>>>> Platform : Struts 2, EJB 3.0, Glassfish 2.1
>>>>>>
>>>>>> I wish to obtain a reference to an EJB using injection.
>>>>>>
>>>>>> This works fine within a servlet, but from within a Struts2 action
>>>>>> class,
>>>>>> all references to injected EJB variables hold a 'null' reference.
>>>>>>
>>>>>> I've included a portion of my action class below.
>>>>>>
>>>>>> I'm confused as to why a Servlet has no trouble using injection as
>>>>>> compared
>>>>>> to the Struts 2 action class. Both the servlet and action class reside
>>>>>> in
>>>>>> the same Web application.
>>>>>>
>>>>>> Does anybody have any ideas?
>>>>>>
>>>>>> /public class UserAction extends ActionSupport implements
>>>>>> ServletRequestAware, SessionAware {
>>>>>>
>>>>>> private static Logger logger = Logger.getLogger(SetupServlet.class);
>>>>>>  @EJB
>>>>>> SetupServiceBeanLocal setupService;
>>>>>>  @EJB
>>>>>> UserServiceBeanLocal userService;
>>>>>> ...
>>>>>> }/
>>>>>>
>>>>>>
>>>>>>
>>>>>>        
>>>>> ------------------------------------------------------------------------
>>>>>
>>>>>
>>>>> No virus found in this incoming message.
>>>>> Checked by AVG - www.avg.com Version: 8.5.387 / Virus Database:
>>>>> 270.13.14/2238 - Release Date: 07/14/09 18:03:00
>>>>>
>>>>>
>>>>>
>>>>>      
>>>
>>> ------------------------------------------------------------------------
>>>
>>>
>>> No virus found in this incoming message.
>>> Checked by AVG - www.avg.com Version: 8.5.387 / Virus Database:
>>> 270.13.14/2238 - Release Date: 07/14/09 18:03:00
>>>
>>>
>>>    
>
>
>
>  
> ------------------------------------------------------------------------
>
>
> No virus found in this incoming message.
> Checked by AVG - www.avg.com
> Version: 8.5.387 / Virus Database: 270.13.14/2238 - Release Date: 07/14/09 18:03:00
>
>  

Hi all,
I have been using Struts 2 for a while now and I am pulling my hair over the
following issue. At times, when my parameter name contains a period, the
Parameterinterceptor doesn't seem to be applied properly. For example I have
a parameter "userAddress.country.id" which points to
getModel().getUserAddress().getCountry().setId() right? This works most of
the time but occasionally, the value doesn't get set. I know this because my
validation keeps denying the user saying that "Country is required" when the
user have indeed chosen a country (problem because the parameter is not
applied properly). The problem goes away when I restart Tomcat.

Anyone facing the same problem? I'm using Struts 2.1.6 by the way.

Regards.
W.SayJon

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