RE: HELP: Dispaly Date in a JSP that used Tiles

[Heligon Sandra]

First, thanks a lot for your help.

I think indeed that this manner of making is better 
but I have a problem to set up it.
Because I must define a tag form. 




As I explained in my previous message I use Tiles all the
pages are composed of several modules header, menu, body and footer.
It is in the header module that I want to display the date,
for the moment the header.jsp page is the following:

<%@ taglib uri="/WEB-INF/tld/struts-bean.tld" prefix="bean" %>
<%@ taglib uri="/WEB-INF/tld/struts-html.tld" prefix="html" %>



  

 


   
 

  



When I run the application I have an error no instance of MyForm
has been created.
I thus defined a DynaValidatorForm in struts-config.xml,and use the Struts
tag
. But when I compile the application I have the
following
message "action is mandatory for tag form".
But I don't want to associate an action to this page.
How can I do ?

Thanks a lot in advance
Sandra




As of February 12th, 2003 Thomson unifies its email addresses on a worldwide
basis. 
Please note my new email address: [EMAIL PROTECTED] 

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Original Message-
From: Gareth Andrew [mailto:[EMAIL PROTECTED]
Sent: 02 April 2003 00:49
To: [EMAIL PROTECTED]
Subject: RE: HELP: Dispaly Date in a JSP that used Tiles


I think your problem has nothing to do with tiles or jsp.  You just need 
to write the output to a control instead of trying to write to the page.
If the browser were to allow your code to work as you have written it 
you would actually get a list of times.
The following code should work - it renders to a named textBox.

BEGINNING OF CODE SAMPLE --


   function aff_heure() {
var d=new Date()
var weekdays=new 
Array("Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday"
)
var monthname=new 
Array("Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec
")

 var weekday=weekdays[d.getDay()]
 var date = d.getDate()
 var month = monthname[d.getMonth()]
var year = d.getFullYear()
var hour = d.getHours()
var minute = d.getMinutes()
var second = d.getSeconds()
 
 var time = new String(weekday + " " + date
  + "." + month + " " + year
  + ", " + hour + ":" + minute
  + ":" + second)
 document.myForm.dateControl.value=time;

   
setTimeout("aff_heure()",100);
   }
  






END OF CODE SAMPLE --

Hope this helps,

Gareth


PS.  You can also render to put your answer in other html objects such 
as spans and divs but if you're trying to make it work on as many 
browsers as possible that might be a bit of a headache.
PPS.  Why not use d.toGMTString() or d.toLocaleString() instead of 
trying to format the string yourself?


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RE: [RePosted] localize messages in JSP without session

[Andrew Hill]

You could probably override the processLocale() method in RequestProcessor
to store it in the request scope, but Im not sure what would be involved
over on the rendering side to get the tags to look for current locale there.

If using locales does indeed require use of the session, than an enhancement
for an option to allow this to be done using only the request is a good
idea. This could be quite useful for higher throughput websites that dont
need to track sessions - though it may involve a bit more effort from the
garbage collector to clean up throwaway locale objects.

-Original Message-
From: Nicolas De Loof [mailto:[EMAIL PROTECTED]
Sent: Wednesday, 2 April 2003 15:13
To: Struts Users Mailing List
Subject: [RePosted] localize messages in JSP without session



 On logon.jsp I would like messages to be localized. AFAIK to do this with
Struts I have to put this tags :

 
   
 ...


 This tags use a Locale objet stored in session scope. My boss doesn't want
this logon JSP to create a new session to
limit memory usage. Is they're a way to use Struts i18n with a REQUEST
scoped Locale or something like this ?

Do you thing it could be an interseting enhancement for future versions ?

 Nico.


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[RePosted] localize messages in JSP without session

[Nicolas De Loof]

 On logon.jsp I would like messages to be localized. AFAIK to do this with Struts I 
have to put this tags :
 
 
   
 ...

 
 This tags use a Locale objet stored in session scope. My boss doesn't want this logon 
JSP to create a new session to
limit memory usage. Is they're a way to use Struts i18n with a REQUEST scoped Locale 
or something like this ?
 
Do you thing it could be an interseting enhancement for future versions ?
 
 Nico.
 

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Re: bean message as button label

[Affan Qureshi]

Use


You can't use a tag as an attribute's value.

HTH
Affan


> I want to use a value in my ApplicationResources.properties as a label on
a button in my jsp, so that I can switch the text on the button, depending
on the Locale used.  I used the following code :
> 
>
> This gives the text: bean:message key on my button, and not the wanted
text in my .properties file. Can anyone help me ?
>
> Thanks
>
> Koen Boutsen
>


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Re: RE: JBoss-3.0.4 and Tomcat-4.1.12,Problem with Deployment and ApplicationREsources

[Thilko Richter]

Sorry, that was a spelling mistake in my e-mail ;-)
The path was /WEB-INF/classes/de/picasso.client/PicassoProperties.properties

I should sleep longer... 

Thilko


"Struts Users Mailing List" <[EMAIL PROTECTED]> schrieb am 02.04.03 09:07:33:
> 
> You have ;
> 
> de.picasso.client.PicassoProperties
>   INF/classes/de/picassoclient/PicassoProperties.properties
> 
> So the XML should read;
> de.picassoclient.PicassoProperties
> 
> -Original Message-
> From: Thilko Richter [mailto:[EMAIL PROTECTED]
> Sent: 02 April 2003 07:54
> To: [EMAIL PROTECTED]
> Subject: JBoss-3.0.4 and Tomcat-4.1.12,Problem with Deployment and
> ApplicationREsources
> 
> 
> 
> Hi!
> 
> I have some serious problem with the deployment of my struts application. At first 
> I´ve got an error when I try to access my ApplicationResources. This is my 
> configuration:
> 
> In the web.xml:
> 
> action
>   
> org.apache.struts.action.ActionServlet
>   
>   
> application
> de.picasso.client.PicassoProperties
>   
> ...
> 
> In the jsp page:
> 
> 
> In the PicassoProperties.properties:
> 
> page.status.title=Picasso Application - Status Page
> page.status.form.description=Beschreibung
> page.status.form.name=Name
> page.status.form.select=Auswahl
> page.status.submit.insert=Status einfügen
> page.status.submit.delete=Status löschen
> page.status.submit.update=Status ändern
> page.status.submit.search=Status suchen
> page.index.title=Picasso Application - Main Page
> page.navigation.link.config=Administration
> page.navigation.link.home=Home
> page.navigation.link.status=Status
> 
> The PicassoProperties.properties is under 
> /WEB-INF/classes/de/picassoclient/PicassoProperties.properties
> 
> When I try to call the Page I get the error:
> 
> org.apache.jasper.JasperException: Missing message for key page.index.title
>   at 
> org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:248)
>   at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:289)
> 
> 
> What I am doing wrong??? I am totally confused, because few days ago it works!!! 
> Could be there a bug? I am using an .ear file for my application.
> When I deploy my application and the struts-example.war, I get this error:
> 
> 08:26:44,949 ERROR [Engine] action: Error creating Action instance for
>  path '/editRegistration', class name 'org.apache.struts.webapp.exampl
> e.EditRegistrationAction'
> java.lang.LinkageError: loader constraints violated when linking org/a
> pache/struts/action/ActionMapping class
> at java.lang.Class.forName0(Native Method)
> at java.lang.Class.forName(Class.java:140)
> at org.apache.struts.action.ActionServlet.processActionCreate(
> ActionServlet.java:1631)
> at org.apache.struts.action.ActionServlet.process(ActionServle
> t.java:1577)
> at org.apache.struts.action.ActionServlet.doGet(ActionServlet.
> java:492)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:740
> )
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:853
> )
> at org.apache.catalina.core.ApplicationFilterChain.internalDoF
> ilter(ApplicationFilterChain.java:247)
> at org.apache.catalina.core.ApplicationFilterChain.doFilter(Ap
> plicationFilterChain.java:193)
> at org.apache.catalina.core.StandardWrapperValve.invoke(Standa
> rdWrapperValve.java:260)
> at org.apache.catalina.core.StandardPipeline$StandardPipelineV
> alveContext.invokeNext(StandardPipeline.java:643)
> at org.apache.catalina.core.StandardPipeline.invoke(StandardPi
> peline.java:480)
> at org.apache.catalina.core.ContainerBase.invoke(ContainerBase
> .java:995)
> at org.apache.catalina.core.StandardContextValve.invoke(Standa
> rdContextValve.java:191)
> at org.apache.catalina.core.StandardPipeline$StandardPipelineV
> alveContext.invokeNext(StandardPipeline.java:643)
> at org.apache.catalina.valves.CertificatesValve.invoke(Certifi
> catesValve.java:246)
> at org.apache.catalina.core.StandardPipeline$StandardPipelineV
> alveContext.invokeNext(StandardPipeline.java:641)
> at org.apache.catalina.core.StandardPipeline.invoke(StandardPi
> peline.java:480)
> at org.apache.catalina.core.ContainerBase.invoke(ContainerBase
> .java:995)
> at org.apache.catalina.core.StandardContext.invoke(StandardCon
> text.java:2396)
> at org.apache.catalina.core.StandardHostValve.invoke(StandardH
> ostValve.java:180)
> at org.apache.catalina.core.StandardPipeline$StandardPipelineV
> alveContext.invokeNext(StandardPipeline.java:643)
> at org.apache.catalina.valves.ErrorDispatcherValve.invoke(Erro
> rDispatcherValve.java:170)
> at org.apache.catalina.core.StandardPipeline$StandardPipelineV
> alveContext.invokeNext(StandardPipeline.java:641)
> at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorRep
> ortValve.java:172)
> at org.apache.catalina.core.Stan

FIND AN ERROR: ApplicationRessources doesn´t work with write protection!!!!!!!

[Thilko Richter]

HI!

I´ve find out the problem:  I checked out the scource files with WinCVS. When I 
checked out the files, they are write protected. Now I buil the ear file with ant and 
deploy it to the JBoss deploy directory. But the ApplicationProperties.properties IS 
WRITE PROTECTED. Then I I ´ve got the error:

... can´t find messag for key... Although everything was correct. But when I remove 
the write protection from the ApplicationProperties.properties IT WORKS! Could be this 
a bug? I thought that Struts only reads the properties file...

Thilko
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RE: JBoss-3.0.4 and Tomcat-4.1.12,Problem with Deployment and ApplicationREsources

[Anthony . Leon]

You have ;

de.picasso.client.PicassoProperties
INF/classes/de/picassoclient/PicassoProperties.properties

So the XML should read;
de.picassoclient.PicassoProperties

-Original Message-
From: Thilko Richter [mailto:[EMAIL PROTECTED]
Sent: 02 April 2003 07:54
To: [EMAIL PROTECTED]
Subject: JBoss-3.0.4 and Tomcat-4.1.12,Problem with Deployment and
ApplicationREsources



Hi!

I have some serious problem with the deployment of my struts application. At first 
I´ve got an error when I try to access my ApplicationResources. This is my 
configuration:

In the web.xml:

action
  
org.apache.struts.action.ActionServlet
  
  
application
de.picasso.client.PicassoProperties
  
...

In the jsp page:


In the PicassoProperties.properties:

page.status.title=Picasso Application - Status Page
page.status.form.description=Beschreibung
page.status.form.name=Name
page.status.form.select=Auswahl
page.status.submit.insert=Status einfügen
page.status.submit.delete=Status löschen
page.status.submit.update=Status ändern
page.status.submit.search=Status suchen
page.index.title=Picasso Application - Main Page
page.navigation.link.config=Administration
page.navigation.link.home=Home
page.navigation.link.status=Status

The PicassoProperties.properties is under 
/WEB-INF/classes/de/picassoclient/PicassoProperties.properties

When I try to call the Page I get the error:

org.apache.jasper.JasperException: Missing message for key page.index.title
at 
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:248)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:289)


What I am doing wrong??? I am totally confused, because few days ago it works!!! Could 
be there a bug? I am using an .ear file for my application.
When I deploy my application and the struts-example.war, I get this error:

08:26:44,949 ERROR [Engine] action: Error creating Action instance for
 path '/editRegistration', class name 'org.apache.struts.webapp.exampl
e.EditRegistrationAction'
java.lang.LinkageError: loader constraints violated when linking org/a
pache/struts/action/ActionMapping class
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:140)
at org.apache.struts.action.ActionServlet.processActionCreate(
ActionServlet.java:1631)
at org.apache.struts.action.ActionServlet.process(ActionServle
t.java:1577)
at org.apache.struts.action.ActionServlet.doGet(ActionServlet.
java:492)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:740
)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853
)
at org.apache.catalina.core.ApplicationFilterChain.internalDoF
ilter(ApplicationFilterChain.java:247)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(Ap
plicationFilterChain.java:193)
at org.apache.catalina.core.StandardWrapperValve.invoke(Standa
rdWrapperValve.java:260)
at org.apache.catalina.core.StandardPipeline$StandardPipelineV
alveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPi
peline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase
.java:995)
at org.apache.catalina.core.StandardContextValve.invoke(Standa
rdContextValve.java:191)
at org.apache.catalina.core.StandardPipeline$StandardPipelineV
alveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.valves.CertificatesValve.invoke(Certifi
catesValve.java:246)
at org.apache.catalina.core.StandardPipeline$StandardPipelineV
alveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPi
peline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase
.java:995)
at org.apache.catalina.core.StandardContext.invoke(StandardCon
text.java:2396)
at org.apache.catalina.core.StandardHostValve.invoke(StandardH
ostValve.java:180)
at org.apache.catalina.core.StandardPipeline$StandardPipelineV
alveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.valves.ErrorDispatcherValve.invoke(Erro
rDispatcherValve.java:170)
at org.apache.catalina.core.StandardPipeline$StandardPipelineV
alveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorRep
ortValve.java:172)
at org.apache.catalina.core.StandardPipeline$StandardPipelineV
alveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogV
alve.java:469)
at org.apache.catalina.core.StandardPipeline$StandardPipelineV
alveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPi
peline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase
.java:995)
at org.apache.catal

Re: bean message as button label

[Gemes Tibor]

koen boutsen írta:



 



Btw why do you call your key buttons.english.push? 

It shouldn't contain the english word, as it is for internationalization 
purposes, so the 
will return the message in any Locale you set up.

Hth,

Tib



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JBoss-3.0.4 and Tomcat-4.1.12,Problem with Deployment and ApplicationREsources

[Thilko Richter]

Hi!

I have some serious problem with the deployment of my struts application. At first 
I´ve got an error when I try to access my ApplicationResources. This is my 
configuration:

In the web.xml:

action
  
org.apache.struts.action.ActionServlet
  
  
application
de.picasso.client.PicassoProperties
  
...

In the jsp page:


In the PicassoProperties.properties:

page.status.title=Picasso Application - Status Page
page.status.form.description=Beschreibung
page.status.form.name=Name
page.status.form.select=Auswahl
page.status.submit.insert=Status einfügen
page.status.submit.delete=Status löschen
page.status.submit.update=Status ändern
page.status.submit.search=Status suchen
page.index.title=Picasso Application - Main Page
page.navigation.link.config=Administration
page.navigation.link.home=Home
page.navigation.link.status=Status

The PicassoProperties.properties is under 
/WEB-INF/classes/de/picassoclient/PicassoProperties.properties

When I try to call the Page I get the error:

org.apache.jasper.JasperException: Missing message for key page.index.title
at 
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:248)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:289)


What I am doing wrong??? I am totally confused, because few days ago it works!!! Could 
be there a bug? I am using an .ear file for my application.
When I deploy my application and the struts-example.war, I get this error:

08:26:44,949 ERROR [Engine] action: Error creating Action instance for
 path '/editRegistration', class name 'org.apache.struts.webapp.exampl
e.EditRegistrationAction'
java.lang.LinkageError: loader constraints violated when linking org/a
pache/struts/action/ActionMapping class
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:140)
at org.apache.struts.action.ActionServlet.processActionCreate(
ActionServlet.java:1631)
at org.apache.struts.action.ActionServlet.process(ActionServle
t.java:1577)
at org.apache.struts.action.ActionServlet.doGet(ActionServlet.
java:492)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:740
)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853
)
at org.apache.catalina.core.ApplicationFilterChain.internalDoF
ilter(ApplicationFilterChain.java:247)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(Ap
plicationFilterChain.java:193)
at org.apache.catalina.core.StandardWrapperValve.invoke(Standa
rdWrapperValve.java:260)
at org.apache.catalina.core.StandardPipeline$StandardPipelineV
alveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPi
peline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase
.java:995)
at org.apache.catalina.core.StandardContextValve.invoke(Standa
rdContextValve.java:191)
at org.apache.catalina.core.StandardPipeline$StandardPipelineV
alveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.valves.CertificatesValve.invoke(Certifi
catesValve.java:246)
at org.apache.catalina.core.StandardPipeline$StandardPipelineV
alveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPi
peline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase
.java:995)
at org.apache.catalina.core.StandardContext.invoke(StandardCon
text.java:2396)
at org.apache.catalina.core.StandardHostValve.invoke(StandardH
ostValve.java:180)
at org.apache.catalina.core.StandardPipeline$StandardPipelineV
alveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.valves.ErrorDispatcherValve.invoke(Erro
rDispatcherValve.java:170)
at org.apache.catalina.core.StandardPipeline$StandardPipelineV
alveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorRep
ortValve.java:172)
at org.apache.catalina.core.StandardPipeline$StandardPipelineV
alveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogV
alve.java:469)
at org.apache.catalina.core.StandardPipeline$StandardPipelineV
alveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPi
peline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase
.java:995)
at org.apache.catalina.core.StandardEngineValve.invoke(Standar
dEngineValve.java:174)
at org.apache.catalina.core.StandardPipeline$StandardPipelineV
alveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPi
peline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase
.java:995)
at org.apache.catalina.connec

Re: bean message as button label

[Steve_Akins]

Not sure if it makes a difference but we do this:



And it works fine.

Give it a try.


Regards,
Steve Akins
Team Leader, Frameworks, J2EE Engineering
Development Centre
Financial Services Australia Technology


( +61 3 8641 2846 2 +61 3 8641 4152 : [EMAIL PROTECTED]


National Australia Bank Limited
4th Floor/ 500 Bourke St
Melbourne, Victoria 3000


|-+>
| |   "koen boutsen"   |
| |   <[EMAIL PROTECTED]|
| |   s.com>   |
| ||
| |   02/04/2003 16:48 |
| |   Please respond to|
| |   "Struts Users|
| |   Mailing List"|
| ||
|-+>
  
>--|
  |
  |
  |   To:   "Struts Users Mailing List" <[EMAIL PROTECTED]>
 |
  |   cc:  
  |
  |   Subject:  bean message as button label   
  |
  
>--|




I want to use a value in my ApplicationResources.properties as a label on a
button in my jsp, so that I can switch the text on the button, depending on
the Locale used.  I used the following code :


This gives the text: bean:message key on my button, and not the wanted text
in my .properties file. Can anyone help me ?

Thanks

Koen Boutsen



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bean message as button label

[koen boutsen]

I want to use a value in my ApplicationResources.properties as a label on a button in 
my jsp, so that I can switch the text on the button, depending on the Locale used.  I 
used the following code :


This gives the text: bean:message key on my button, and not the wanted text in my 
.properties file. Can anyone help me ?

Thanks

Koen Boutsen



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[Struts FAQ] Update #3

[John Yu]

Struts FAQ - Update #3

 http://www.scioworks.net/servlets/ShowPage?pid=54&dp=3

This update covers:

Q1: Is it possible to make the data from the resource bundles accessible as 
JSP page scripting variables?

Q2: What does  do?

Q3: What are "indexed" struts-html tags and how to use them?

Q4: What are "map-backed" form beans and how to use them?

Q5: I have an "index.jsp" in a "module1" module. However, when I access 
this from the browser, Struts doesn't seem to access the module 
struts-config.xml of the "module1". Why?

Q6: How do I make  to check if a bean is null before comparing 
the value?

Q7: The Taglib standard does not allow nesting custom tag inside the 
attribute of another custom tag. How can I achieve something like 
"/>?

Q8: How to apply container-managed security to Struts Actions?

Q9: When I have literal string in scriplet used inside a Struts custom tag, 
e.g. "/>, the scriplet is not 
evaluated properly. Why?

Q10: How do I use a Struts Action as a welcome file specified as 
 in web.xml ?

Q11: Why does my JSP gives me "Illegal target of jump or branch", 
ClassFormatError or VerifyError?

Q12: Can I detect if the user presses STOP on the browser?

Q13: How to dynamically populate values in a form (e.g. options in a select 
box) without submitting or refreshing the entire page?

--
John Yu  

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RE: [Struts FAQ] Update #3

[Andrew Hill]

Glad to see your still updating the Q & A. Keep up the good work. :-)


How to dynamically populate values in a form (e.g. options in a select box)
without submitting or refreshing the entire page?

As well as applets (which require the user's browser to have a Java VM or
plugin), a similar effect can be achieved using only javascript and a hidden
IFRAME or FRAME. Theres quite a good article on this technique at
http://developer.apple.com/internet/javascript/iframe.html

btw: I noticed a typo:

 the problem encountered by the container when flushing will be 'swollen' by
the container

I presume that should be 'swallowed by the container'?


-Original Message-
From: Struts Q&A Info [mailto:[EMAIL PROTECTED]
Sent: Wednesday, 2 April 2003 12:19
To: [EMAIL PROTECTED]
Subject: [Struts FAQ] Update #3



Struts FAQ - Update #3

  http://www.scioworks.net/servlets/ShowPage?pid=54&dp=3


This update covers:

Q1: Is it possible to make the data from the resource bundles accessible as
JSP page scripting variables?

Q2: What does  do?

Q3: What are "indexed" struts-html tags and how to use them?

Q4: What are "map-backed" form beans and how to use them?

Q5: I have an "index.jsp" in a "module1" module. However, when I access
this from the browser, Struts doesn't seem to access the module
struts-config.xml of the "module1". Why?

Q6: How do I make  to check if a bean is null before comparing
the value?

Q7: The Taglib standard does not allow nesting custom tag inside the
attribute of another custom tag. How can I achieve something like
"/>?

Q8: How to apply container-managed security to Struts Actions?

Q9: When I have literal string in scriplet used inside a Struts custom tag,
e.g. "/>, the scriplet is not
evaluated properly. Why?

Q10: How do I use a Struts Action as a welcome file specified as
 in web.xml ?

Q11: Why does my JSP gives me "Illegal target of jump or branch",
ClassFormatError or VerifyError?

Q12: Can I detect if the user presses STOP on the browser?

Q13: How to dynamically populate values in a form (e.g. options in a select
box) without submitting or refreshing the entire page?

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Re: message resouce bundle in validator

[Navjot Singh]

 hi mahesh,

i am aware of this problem but we can't call it a bug. May be a shortcoming
that might be solved in the coming release.

if you wish to change on your own. You need to look into
commons-validator.jar.

HTH
-navjot

- Original Message -
From: "Bhagia, Mahesh" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, April 01, 2003 8:28 PM
Subject: message resouce bundle in validator


|
| Hello Navjot,
|
| This message(from struts-user-forum) is regarding specifying message
| resource bundle in validator.xml
|
| Struts 1.1-b2
|
| I have multiple resource files for my application defined in
| struts-config.xml:
| 
| 
|
| Then in my JSPs I reference:
| 
| 
|
| This all works fine.
|
| I am now trying to add in validation on the form. Here is my
validation.xml:
| 
| 
| 
| 
| 
| 
|
| The "partNumber" arg0 is in the "default" ApplicationResources.properties
| file and displays correctly. However the "faultDescription" error message
is
| not correct it returns:
| ???en.faultDescription.title??? is required.
|
| By looking at the validation_1_1.dtd I can see that the arg0 attribute
takes
| only three parameters:
| name
| key
| resource
|
| none of which is bundle. Can the validator handle multiple resources? Is
| this a bug?
|
|
| Do you know how / where,  we need to change framework for this to work?,
|
| Thanks
| Mahesh Bhagia
|
|
|


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Re: [OT] Re: A question

[David Graham]

> The reason to avoid scriplets is to allow seperation of page designers 
and
> developers dependancies but the poor page designer won't make much sense 
out
> of either of them in this case i think and its better to give him one 
line
> of confusion than 5.
Ah, the mysterious "page designer".  They're rarely spotted in the Canadian 
woods...or is that the Yetti?

I believe most developers don't have the luxury of dedicated page designers. 
 IMO, the main reason to use tags over scriptlets is that it's more 
productive and much less error prone.  I've always been confused by people 
who ask things like, "Does IDE X support JSP debugging?".  Well, if you need 
to debug your JSP, you've got way too much logic in there and no IDE will 
save you.

David

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Re: [OT] Zip Codes [WAS: RE: Bug in JSF Car Demo]

[Neil Erdwien]

Zone Improvement Plan -- if memory serves.

Andrew Hill wrote:
What is a ZIP code?
Yes I know its a postcode - but what does zip stand for?
(Does the US Postal service compress your mail to save space?)
-Original Message-
From: James Turner [mailto:[EMAIL PROTECTED]
Sent: Wednesday, 2 April 2003 11:20
To: 'Struts Users Mailing List'
Subject: FYI: Bug in JSF Car Demo
For those of us who live in the east, we have zip codes that start with
zero.  Since you're using a numeric field for zip code (bad boy, bad bad
boy!), it doesn't work.
James



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--
Neil Erdwien, [EMAIL PROTECTED], Web Technologies Manager
Computing and Network Services, Kansas State University
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Re: [OT] Re: A question

[James Mitchell]

On Tue, 2003-04-01 at 22:36, Affan Qureshi wrote:
> Isn't the scriplet free version more confusing/cryptic than the scriplet
> one? I know we should avoid scriplets 110% in JSPs but what about cases
> where it can save some confusion of five tags to do a simple thing?

Well, first of all, referencing a key from the bundle like this is poor
design IMHO.  Something like that should have been done in the action,
and placed on the formbean.  I was just trying to help with syntax.

> 
> The reason to avoid scriplets is to allow seperation of page designers and
> developers dependancies but the poor page designer won't make much sense out
> of either of them in this case i think and its better to give him one line
> of confusion than 5.

I agree.

> 
> Intersted to know your comments.
> 
> Regards,
> Affan
> 
> - Original Message -
> From: "James Mitchell" <[EMAIL PROTECTED]>
> To: "Struts Users Mailing List" <[EMAIL PROTECTED]>
> Sent: Wednesday, April 02, 2003 12:21 AM
> Subject: Re: A  question
> 
> 
> > or using the scriptlet-free version
> >
> > 
> >
> > 
> >  .name
> > 
> >
> > 
> >  
> > 
> >
> >   <-- remove this unless you just want to
> print
> > it out on the page
> >
> >
> >
> > --
> > James Mitchell
> > Software Developer/Struts Evangelist
> > http://www.open-tools.org
> >
> >
> >
> > - Original Message -
> > From: "Karr, David" <[EMAIL PROTECTED]>
> > To: "Struts Users Mailing List" <[EMAIL PROTECTED]>
> > Sent: Tuesday, April 01, 2003 11:14 AM
> > Subject: RE: A  question
> >
> >
> > > This might work:
> > >
> > > 
> > > 
> > > 
> > >
> > > > -Original Message-
> > > > From: Binaghi Mauro [mailto:[EMAIL PROTECTED]
> > > >
> > > > Hi
> > > > I have the "user.name" property in my "ApplicationResource.properties"
> > > > file.
> > > > Can I take its value with the following instrucition in my JSP page?
> > > >
> > > > 
> > > >  > > > %>.name"/>
> > > > 
> > > >
> > > > Of course, I call my JSP with this URI
> > > "/myPage.jsp?httpParameter=user"
> > >
> > > -
> > > To unsubscribe, e-mail: [EMAIL PROTECTED]
> > > For additional commands, e-mail: [EMAIL PROTECTED]
> >
> >
> > -
> > To unsubscribe, e-mail: [EMAIL PROTECTED]
> > For additional commands, e-mail: [EMAIL PROTECTED]
> >
> 
> 
> -
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-- 
James Mitchell
Software Developer/Struts Evangelist
http://www.open-tools.org




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No posts in last couple of days?

[K.Viswanathan]

Test...

Re: [OT] Zip Codes [WAS: RE: Bug in JSF Car Demo]

[Kris Schneider]

Only the fragile stuff...;-)

Andrew Hill wrote:
What is a ZIP code?
Yes I know its a postcode - but what does zip stand for?
(Does the US Postal service compress your mail to save space?)
-Original Message-
From: James Turner [mailto:[EMAIL PROTECTED]
Sent: Wednesday, 2 April 2003 11:20
To: 'Struts Users Mailing List'
Subject: FYI: Bug in JSF Car Demo
For those of us who live in the east, we have zip codes that start with
zero.  Since you're using a numeric field for zip code (bad boy, bad bad
boy!), it doesn't work.
James
--
Kris Schneider 
D.O.Tech   
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RE: [OT] April Fools?

[Andrew Hill]

I thought April Fools day was 1st of April - not the second.
-or is that the prank?

;->

-Original Message-
From: Mark Galbreath [mailto:[EMAIL PROTECTED]
Sent: Wednesday, 2 April 2003 01:30
To: struts
Subject: [OT] April Fools?





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[OT] Zip Codes [WAS: RE: Bug in JSF Car Demo]

[Andrew Hill]

What is a ZIP code?
Yes I know its a postcode - but what does zip stand for?
(Does the US Postal service compress your mail to save space?)

-Original Message-
From: James Turner [mailto:[EMAIL PROTECTED]
Sent: Wednesday, 2 April 2003 11:20
To: 'Struts Users Mailing List'
Subject: FYI: Bug in JSF Car Demo


For those of us who live in the east, we have zip codes that start with
zero.  Since you're using a numeric field for zip code (bad boy, bad bad
boy!), it doesn't work.

James



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[OT] Re: A question

[Affan Qureshi]

Isn't the scriplet free version more confusing/cryptic than the scriplet
one? I know we should avoid scriplets 110% in JSPs but what about cases
where it can save some confusion of five tags to do a simple thing?

The reason to avoid scriplets is to allow seperation of page designers and
developers dependancies but the poor page designer won't make much sense out
of either of them in this case i think and its better to give him one line
of confusion than 5.

Intersted to know your comments.

Regards,
Affan

- Original Message -
From: "James Mitchell" <[EMAIL PROTECTED]>
To: "Struts Users Mailing List" <[EMAIL PROTECTED]>
Sent: Wednesday, April 02, 2003 12:21 AM
Subject: Re: A  question


> or using the scriptlet-free version
>
> 
>
> 
>  .name
> 
>
> 
>  
> 
>
>   <-- remove this unless you just want to
print
> it out on the page
>
>
>
> --
> James Mitchell
> Software Developer/Struts Evangelist
> http://www.open-tools.org
>
>
>
> - Original Message -
> From: "Karr, David" <[EMAIL PROTECTED]>
> To: "Struts Users Mailing List" <[EMAIL PROTECTED]>
> Sent: Tuesday, April 01, 2003 11:14 AM
> Subject: RE: A  question
>
>
> > This might work:
> >
> > 
> > 
> > 
> >
> > > -Original Message-
> > > From: Binaghi Mauro [mailto:[EMAIL PROTECTED]
> > >
> > > Hi
> > > I have the "user.name" property in my "ApplicationResource.properties"
> > > file.
> > > Can I take its value with the following instrucition in my JSP page?
> > >
> > > 
> > >  > > %>.name"/>
> > > 
> > >
> > > Of course, I call my JSP with this URI
> > "/myPage.jsp?httpParameter=user"
> >
> > -
> > To unsubscribe, e-mail: [EMAIL PROTECTED]
> > For additional commands, e-mail: [EMAIL PROTECTED]
>
>
> -
> To unsubscribe, e-mail: [EMAIL PROTECTED]
> For additional commands, e-mail: [EMAIL PROTECTED]
>


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FYI: Bug in JSF Car Demo

[James Turner]

For those of us who live in the east, we have zip codes that start with
zero.  Since you're using a numeric field for zip code (bad boy, bad bad
boy!), it doesn't work.

James



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RE: Struts London Square Mile Java Developers

[Marco Tedone]

I live in Leyton, when the central line will work again, is not that far
from the SM.

Regards,

Marco 

> -Original Message-
> From: PILGRIM, Peter, FM [mailto:[EMAIL PROTECTED] 
> Sent: Tuesday, April 01, 2003 3:56 PM
> To: 'Struts Users Mailing List'
> Subject: Struts London Square Mile Java Developers 
> 
> 
> > On 26/03/2003 10:26 Chris May wrote:
> > > Maybe, if it was south Manchester (I'm based in the 
> Midlands). Any 
> > > takers?
> > > 
> > Chris
> >
> > I'm in the Midlands too - just north of Brum.
> 
> Anyone in the square mile!
> 
> --
> Peter Pilgrim,
> Struts/J2EE Consultant, RBoS FM, Risk IT
> Tel: +44 (0)207-375-4923
>  
> 
> 
> **
> *
>   Visit our Internet site at http://www.rbsmarkets.com
> 
> This e-mail is intended only for the addressee named above.
> As this e-mail may contain confidential or privileged 
> information, if you are not the named addressee, you are not 
> authorised to retain, read, copy or disseminate this message 
> or any part of it. The Royal Bank of Scotland plc is 
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> Regulated by the Financial Services Authority
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Re: Base Action Class

[Max Cooper]

Why couple it to your ActionBase class? You can make it self-contained so
that you can get access to it anywhere that you have a handle to the
request. To get the MySession object for the session associated with the
current request, you just call MySession.getMySession(request). It will even
make one for you if it isn't already there.

public MySession implements Serializable {
   public static final String SESSION_KEY = "mySession";

   // static access method
   public static MySession getMySession(HttpServletRequest request) {
  HttpSession session = request.getSession();
  // you can even synchronize this to ensure you only make one per
session...
  synchronized (session) {
 MySession mySession = session.getAttribute(SESSION_KEY);
 if (mySession == null) {
mySession = new MySession();
session.setAttribute(SESSION_KEY, mySession);
 }
  }
  return mySession;
   }

   // whatever else you want in here
   private String favoriteWesAndersonMovie;
   public String getFavoriteWesAndersonMovie() {
  return favoriteWesAndersonMovie;
   }
   public void setFavoriteWesAndersonMovie(String movie) {
  favoriteWesAndersonMovie = movie;
   }
}

This also solves a problem that is frequently posted about: how to load a
UserProfile object into the session when a user logs in. The answer is
"don't" -- just instantiate it the first time you need to use it by always
getting to it with a static method like this. That access restriction
doesn't work too well with the bean-oriented JSP custom tags, but you could
decide on a name for the profile (like I used "mySession" above) in the
session and then just call the static access method in your ActionBase for
each request to ensure its existence before the request gets passed to a JSP
(or whatever you are using to render the view).

-Max

- Original Message -
From: "Johnny Rask" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, April 01, 2003 4:02 PM
Subject: Base Action Class


> Hello,
>  I have created a BaseAction class which extends
> Action. I in turn extend this BaseAction class for my
> specific needs (for example a user registration
> action). Inside my BaseAction I was thinking of adding
> an instance variable named mySession of type MySession
> which is essentially a container(java bean) of
> different "things" and is stored in the session under
> a keyed name (MY_SESSION). Then adding a
> getMySession() method in BaseAction to retrieve this
> session scoped variable from the HttpSession.
>
> Basically I want a uniform way to access this
> container class from any of the Action classes methods
> that extend BaseAction.  Are there any downfalls to
> this concept? I thought I read a previous message
> somewhere saying never to have instance variables in
> your action classes because it is not thread safe, is
> this true?
>
> Side note I am using an HttpSessionListener to put a
> MySession instance into the HttpSession when a new one
> is created.
>
> Thanks,
> Gator
>
> __
> Do you Yahoo!?
> Yahoo! Tax Center - File online, calculators, forms, and more
> http://platinum.yahoo.com
>
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>
>



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Re: scaffold ProcessBaseBean and sessions

[Steve_Akins]

Hi Kirby,


You're right about the struts-user group, not much talk of Scaffold but we
should try and change that.
Another place to look is http://sourceforge.net/projects/struts/


I've been off the air for the last couple of days but will try to answer
what I can when I can.



This is what we do:

import org.apache.commons.scaffold.lang.Tokens;
   .
   .
   .
   .
ProcessResult result = new ProcessResultBase(this, true);

// DO STUFF

if (error) {
  result.setDispatch(Tokens.FAILURE);
  result.addMessage(new ActionError
("error.something.bad.has.happened"));
}



OR


ProcessResult result = new ProcessResultBase(this, true);

// DO STUFF

if (error) {
  result.setDispatch(Tokens.FAILURE);
  ActionErrors errors = new ActionErrors();
  errors.add("password", new ActionError
("error.you.have.stuffed.up","password"));
  errors.add("userid", new ActionError
("error.you.have.stuffed.up","userid"));
  result.addMessage(errors);
}




I have also made a modification to the Scaffold code so that you can add
multiple ActionError objects to the message response.  Here you can either
add an ActionError or ActionErrors object as a message response  (See
above). The original code for this method looks a bit odd.  It looks like
you have to add the message key and message parameters as separate adds to
the messages list object.  Strange!  I think what I've done makes a little
more sense but that's up to others to interpret.


The following method is in BaseAction



  protected void mergeAlerts(
HttpServletRequest request,
ActionErrors alerts,
List list) {

if ((null != list) && (0 != list.size())) {

  for (int i = 0; i < list.size(); i++) {
Object obj = list.get(i);

// if the obj is an ActionError_s_ then pull out
each
// ActionError and merge into the alerts with the
field key
if (obj instanceof ActionErrors) {

  ActionErrors errors = (ActionErrors) obj;

  Iterator itr = errors.properties();
  while(itr.hasNext()){
String key = (String)itr.next();
Object value = errors.get(key);
Iterator itrError = (Iterator) value;
while(itrError.hasNext()){
  alerts.add(key, (ActionError)
itrError.next());
}
  }

} else {
  // assume anything else is going to be an
ActionError
  alerts.add(ActionErrors.GLOBAL_ERROR,
(ActionError) list.get(i));
}

  }
}

  }



Hope this helps.


Regards,

Steve Akins
Team Leader, Frameworks, J2EE Engineering
Development Centre
Financial Services Australia Technology


( +61 3 8641 2846 2 +61 3 8641 4152 : [EMAIL PROTECTED]


National Australia Bank Limited
4th Floor/ 500 Bourke St
Melbourne, Victoria 3000


|-+>
| |   Kirby Vandivort  |
| |   <[EMAIL PROTECTED]|
| |   .edu>|
| ||
| |   01/04/2003 02:08 |
| ||
|-+>
  
>--|
  |
  |
  |   To:   [EMAIL PROTECTED]  
|
  |   cc:  
  |
  |   Subject:  Re: scaffold ProcessBaseBean and sessions  
  |
  
>--|




Steve,

Thanks for responding earlier.  It was helpful and was close to what I
was doing at the time.

For the most part, the struts-user group doesn't seem very responsive for
any scaffold related questions.  Right now, I'm having trouble with a
simple question and I was wondering if you could enlighten me on how
you handle this case.

I've got my logic bean that inherits from ProcessBean.  This bean has the
simple job of changing a password.  It gets 3 values in (old pass, new
pass,
and verification pass).

How do I send back a failure message from the bean?  Let's say that their
old pass isn't correct, or the two new passwords don't match.  As best
I can tell, I only have two routes to go:

* I can use 'addMessage' but that doesn't set any f

RE: Base Action Class

[Brandon Goodin]

HAHA! I sent my email off before I saw Craig's... oops :-o

Nice to know we agree :-D

Brandon Goodin
 

-Original Message-
From: Craig R. McClanahan [mailto:[EMAIL PROTECTED]
Sent: Tuesday, April 01, 2003 5:59 PM
To: Struts Users Mailing List
Subject: Re: Base Action Class




On Tue, 1 Apr 2003, Johnny Rask wrote:

> Date: Tue, 1 Apr 2003 16:02:43 -0800 (PST)
> From: Johnny Rask <[EMAIL PROTECTED]>
> Reply-To: Struts Users Mailing List <[EMAIL PROTECTED]>
> To: [EMAIL PROTECTED]
> Subject: Base Action Class
>
> Hello,
>  I have created a BaseAction class which extends
> Action. I in turn extend this BaseAction class for my
> specific needs (for example a user registration
> action). Inside my BaseAction I was thinking of adding
> an instance variable named mySession of type MySession
> which is essentially a container(java bean) of
> different "things" and is stored in the session under
> a keyed name (MY_SESSION). Then adding a
> getMySession() method in BaseAction to retrieve this
> session scoped variable from the HttpSession.
>

If you store this in an instance variable of the BaseAction class (or one
of your subclasses), it is going to cause you nothing but problems when
two users access this action at the same time -- there's only one instance
of the action, so the two users will scribble on each other.

> Basically I want a uniform way to access this
> container class from any of the Action classes methods
> that extend BaseAction.  Are there any downfalls to
> this concept? I thought I read a previous message
> somewhere saying never to have instance variables in
> your action classes because it is not thread safe, is
> this true?

Yep.

One approach to implementing your getMySession() method would be more like
what some of the standard methods provided by Action do:  take a parameter
containing the request, so you can go get the correct attribute easily:

  protected MySession getMySession(HttpRequest request) {
return ((MySession) request.getSession().getAttribute(MY_SESSION));
  }

which saves a little typing on each access, but more importantly it hides
from your Action logic the precise place that MySession is getting
retrieved from.  That means you can change it later, if need be (sample
change - write a Filter that copies it into a *request* attribute instead
of a session attribute), without messing up existing classes.

>
> Side note I am using an HttpSessionListener to put a
> MySession instance into the HttpSession when a new one
> is created.
>
> Thanks,
> Gator
>

Craig

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RE: Base Action Class

[Brandon Goodin]

It doesn't sound like you have to store the bean as an instance variable.
Just store it in the session under your key defined as a Constant. Then use
your getMySession() method to retrieve the session stored javabean. The bean
is already stored in the session scope. There is no need to store it as an
instance variable in your Action class. Just retrieve it from the session.

For examples:

ExtendedBaseAction extends BaseAction {

...

public static final MY_SESSION="com.foo.MySession";

...

public MySession getMySession() {

return (MySession) request.getSession().getAttribute(MY_SESSION);

}

...

}


Brandon Goodin
Phase Web and Multimedia
PO Box 85
Whitefish MT 59937
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-Original Message-
From: Derek Richardson [mailto:[EMAIL PROTECTED]
Sent: Tuesday, April 01, 2003 5:56 PM
To: Struts Users Mailing List
Subject: RE: Base Action Class


Instance variables in your actions classes are not thread-safe. :)

Why not call getMySession from inside execute() and store it in a local
variable?

> -Original Message-
> From: Johnny Rask [mailto:[EMAIL PROTECTED]
> Sent: Tuesday, April 01, 2003 7:03 PM
> To: [EMAIL PROTECTED]
> Subject: Base Action Class
>
>
> Hello,
>  I have created a BaseAction class which extends
> Action. I in turn extend this BaseAction class for my
> specific needs (for example a user registration
> action). Inside my BaseAction I was thinking of adding
> an instance variable named mySession of type MySession
> which is essentially a container(java bean) of
> different "things" and is stored in the session under
> a keyed name (MY_SESSION). Then adding a
> getMySession() method in BaseAction to retrieve this
> session scoped variable from the HttpSession.
>
> Basically I want a uniform way to access this
> container class from any of the Action classes methods
> that extend BaseAction.  Are there any downfalls to
> this concept? I thought I read a previous message
> somewhere saying never to have instance variables in
> your action classes because it is not thread safe, is
> this true?
>
> Side note I am using an HttpSessionListener to put a
> MySession instance into the HttpSession when a new one
> is created.
>
> Thanks,
> Gator
>
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Re: Base Action Class

[Craig R. McClanahan]

On Tue, 1 Apr 2003, Johnny Rask wrote:

> Date: Tue, 1 Apr 2003 16:02:43 -0800 (PST)
> From: Johnny Rask <[EMAIL PROTECTED]>
> Reply-To: Struts Users Mailing List <[EMAIL PROTECTED]>
> To: [EMAIL PROTECTED]
> Subject: Base Action Class
>
> Hello,
>  I have created a BaseAction class which extends
> Action. I in turn extend this BaseAction class for my
> specific needs (for example a user registration
> action). Inside my BaseAction I was thinking of adding
> an instance variable named mySession of type MySession
> which is essentially a container(java bean) of
> different "things" and is stored in the session under
> a keyed name (MY_SESSION). Then adding a
> getMySession() method in BaseAction to retrieve this
> session scoped variable from the HttpSession.
>

If you store this in an instance variable of the BaseAction class (or one
of your subclasses), it is going to cause you nothing but problems when
two users access this action at the same time -- there's only one instance
of the action, so the two users will scribble on each other.

> Basically I want a uniform way to access this
> container class from any of the Action classes methods
> that extend BaseAction.  Are there any downfalls to
> this concept? I thought I read a previous message
> somewhere saying never to have instance variables in
> your action classes because it is not thread safe, is
> this true?

Yep.

One approach to implementing your getMySession() method would be more like
what some of the standard methods provided by Action do:  take a parameter
containing the request, so you can go get the correct attribute easily:

  protected MySession getMySession(HttpRequest request) {
return ((MySession) request.getSession().getAttribute(MY_SESSION));
  }

which saves a little typing on each access, but more importantly it hides
from your Action logic the precise place that MySession is getting
retrieved from.  That means you can change it later, if need be (sample
change - write a Filter that copies it into a *request* attribute instead
of a session attribute), without messing up existing classes.

>
> Side note I am using an HttpSessionListener to put a
> MySession instance into the HttpSession when a new one
> is created.
>
> Thanks,
> Gator
>

Craig

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RE: Base Action Class

[Derek Richardson]

Instance variables in your actions classes are not thread-safe. :)

Why not call getMySession from inside execute() and store it in a local variable?

> -Original Message-
> From: Johnny Rask [mailto:[EMAIL PROTECTED]
> Sent: Tuesday, April 01, 2003 7:03 PM
> To: [EMAIL PROTECTED]
> Subject: Base Action Class
> 
> 
> Hello,
>  I have created a BaseAction class which extends
> Action. I in turn extend this BaseAction class for my
> specific needs (for example a user registration
> action). Inside my BaseAction I was thinking of adding
> an instance variable named mySession of type MySession
> which is essentially a container(java bean) of
> different "things" and is stored in the session under
> a keyed name (MY_SESSION). Then adding a
> getMySession() method in BaseAction to retrieve this
> session scoped variable from the HttpSession. 
> 
> Basically I want a uniform way to access this
> container class from any of the Action classes methods
> that extend BaseAction.  Are there any downfalls to
> this concept? I thought I read a previous message
> somewhere saying never to have instance variables in
> your action classes because it is not thread safe, is
> this true?
> 
> Side note I am using an HttpSessionListener to put a
> MySession instance into the HttpSession when a new one
> is created.
> 
> Thanks,
> Gator
> 
> __
> Do you Yahoo!?
> Yahoo! Tax Center - File online, calculators, forms, and more
> http://platinum.yahoo.com
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RE: /do or .do

[jbaker]

That's what I'm doing for an application I'm working on (e.g. 
/countries/china/index.do).  This keeps things consistent with the static 
site I'm replacing (/countries/china/index.html) and they look familiar to 
people.

Joe Baker
Director of Internet Communications
Amnesty International USA
600 Pennsylvania Ave SE 5th Floor
Washington, DC 20003
202-544-0200 x285
http://www.amnestyusa.org
[EMAIL PROTECTED]




"Brandon Goodin" <[EMAIL PROTECTED]>
04/01/03 07:21 PM
Please respond to "Struts Users Mailing List"

 
To: "Struts Users Mailing List" <[EMAIL PROTECTED]>
cc: 
Subject:RE: /do or .do


h! very good! I've spent the last 1 1/2 years using /do so I did not
know a blended option was possible. Great! Thanks!

Brandon Goodin

-Original Message-
From: Thorin Linderholm [mailto:[EMAIL PROTECTED]
Sent: Tuesday, April 01, 2003 5:15 PM
To: 'Struts Users Mailing List'
Subject: RE: /do or .do


If you wanted to switch to *.do you could use:

/admin/cms/article/add.do

That will still match your *.do servlet mapping.

-Original Message-
From: Brandon Goodin [mailto:[EMAIL PROTECTED]
Sent: Tuesday, April 01, 2003 4:15 PM
To: Struts User List
Subject: /do or .do


I have been in the habit of /do pattern. It seems to work fine for me. 
Apart
from having different 'modules' or subapps, is there a compelling reason 
to
use .do.

In the course of using /do I have found it easier to map the functions of 
my
actions.

For examples:
/do/admin/cms/article/add vs
adminCMSArticleAdd.do

To me the first one is cleaner. Can I stir all of your thoughts on this
subject. I am at a place where I can change to the .do if there is a good
reason.

Brandon Goodin



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RE: /do or .do

[Brandon Goodin]

h! very good! I've spent the last 1 1/2 years using /do so I did not
know a blended option was possible. Great! Thanks!

Brandon Goodin

-Original Message-
From: Thorin Linderholm [mailto:[EMAIL PROTECTED]
Sent: Tuesday, April 01, 2003 5:15 PM
To: 'Struts Users Mailing List'
Subject: RE: /do or .do


If you wanted to switch to *.do you could use:

/admin/cms/article/add.do

That will still match your *.do servlet mapping.

-Original Message-
From: Brandon Goodin [mailto:[EMAIL PROTECTED]
Sent: Tuesday, April 01, 2003 4:15 PM
To: Struts User List
Subject: /do or .do


I have been in the habit of /do pattern. It seems to work fine for me. Apart
from having different 'modules' or subapps, is there a compelling reason to
use .do.

In the course of using /do I have found it easier to map the functions of my
actions.

For examples:
/do/admin/cms/article/add vs
adminCMSArticleAdd.do

To me the first one is cleaner. Can I stir all of your thoughts on this
subject. I am at a place where I can change to the .do if there is a good
reason.

Brandon Goodin



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RE: /do or .do

[Thorin Linderholm]

If you wanted to switch to *.do you could use:

/admin/cms/article/add.do

That will still match your *.do servlet mapping.

-Original Message-
From: Brandon Goodin [mailto:[EMAIL PROTECTED]
Sent: Tuesday, April 01, 2003 4:15 PM
To: Struts User List
Subject: /do or .do


I have been in the habit of /do pattern. It seems to work fine for me. Apart
from having different 'modules' or subapps, is there a compelling reason to
use .do.

In the course of using /do I have found it easier to map the functions of my
actions.

For examples:
/do/admin/cms/article/add vs
adminCMSArticleAdd.do

To me the first one is cleaner. Can I stir all of your thoughts on this
subject. I am at a place where I can change to the .do if there is a good
reason.

Brandon Goodin



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/do or .do

[Brandon Goodin]

I have been in the habit of /do pattern. It seems to work fine for me. Apart
from having different 'modules' or subapps, is there a compelling reason to
use .do.

In the course of using /do I have found it easier to map the functions of my
actions.

For examples:
/do/admin/cms/article/add vs
adminCMSArticleAdd.do

To me the first one is cleaner. Can I stir all of your thoughts on this
subject. I am at a place where I can change to the .do if there is a good
reason.

Brandon Goodin



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Base Action Class

[Johnny Rask]

Hello,
 I have created a BaseAction class which extends
Action. I in turn extend this BaseAction class for my
specific needs (for example a user registration
action). Inside my BaseAction I was thinking of adding
an instance variable named mySession of type MySession
which is essentially a container(java bean) of
different "things" and is stored in the session under
a keyed name (MY_SESSION). Then adding a
getMySession() method in BaseAction to retrieve this
session scoped variable from the HttpSession. 

Basically I want a uniform way to access this
container class from any of the Action classes methods
that extend BaseAction.  Are there any downfalls to
this concept? I thought I read a previous message
somewhere saying never to have instance variables in
your action classes because it is not thread safe, is
this true?

Side note I am using an HttpSessionListener to put a
MySession instance into the HttpSession when a new one
is created.

Thanks,
Gator

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http://platinum.yahoo.com

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Re: design question about action chaining

[Kris Schneider]

+1 for David's recommendation to look at filters (Servlet 2.3) and his emphasis 
that the responsibility of a Struts action is controller logic, not business 
logic. Of course, there's nothing to keep you from (ab)using them that way, but 
it's certainly not a "best practice". In fact, if you've got your business logic 
too tightly coupled to your controller framework, I bet it makes it a PITA to 
port to a different controller framework.

As for using filters with Struts, I'd wager it's pretty common (I do it 
routinely). For example, a search through the archives on SecurityFilter 
(http://securityfilter.sourceforge.net/) results in about 120 hits. It just 
doesn't make sense to me to ignore a standard piece of functionality just to 
reimplement it as an extension to a custom framework. I suppose I can understand 
the potential problem of having to sift through both web.xml and 
struts-config.xml to get a complete picture of how a given request gets 
processed though.

Stepping back for a moment, I like to view the interface to my web apps as a set 
of request URIs (e.g. http://host/app/do/profile/edit). This is the contract my 
app has with its clients. With that established, I'm free to implement the 
servicing of requests for those URIs in any way I see fit. If I don't need to 
tie that handling to Struts (or any other framework), I won't. It makes my life 
that much easier downt the road.

David Graham wrote:
You need to understand what Struts does for you.  The Action classes are 
*not* for business logic, they are part of the controller and define 
page flow and call business logic methods.  If you need special 
authentication, logging, etc. for particular views then a filter is your 
best choice.

Filters aren't a parallel system to Struts because they logically sit in 
front of Struts handling requests before Struts gets them.

David



From: Thorin Linderholm <[EMAIL PROTECTED]>
Reply-To: "Struts Users Mailing List" <[EMAIL PROTECTED]>
To: 'Struts Users Mailing List' <[EMAIL PROTECTED]>
Subject: RE: design question about action chaining
Date: Tue, 1 Apr 2003 12:08:09 -0800
Filters are one of the design/imp choices I've considered under the
'parallel system' heading, though I hadn't thought of trying to use the
web.xml for this.  I'd have to look into these more.
I take it you recomending that a second, parallel system of specifying
functionality on a per-page or per-page-set basis is the way to go?
What reasons would you have for this design choice, as opposed to 
extending
struts to contain this functionality?

Have you (or others,) implemented something similar to this?

(This port is going to be a large chunk of time and I'm just trying to 
find
out if other people have already thought through and implemented this 
type
of functionality before I just pick something, run with it, and end up 
with
some kind of maintenance or design nightmare :-)

-Original Message-
From: David Graham [mailto:[EMAIL PROTECTED]
Sent: Tuesday, April 01, 2003 11:52 AM
To: [EMAIL PROTECTED]
Subject: Re: design question about action chaining
I think Filters would be a good choice for your needs.  You can define a
filter for each piece of logic and then configure them in web.xml for 
groups

of pages.  You'll need to put related pages in the same path scheme so 
that
you can map a filter to the group instead of each page.

David



>From: Thorin Linderholm <[EMAIL PROTECTED]>
>Reply-To: "Struts Users Mailing List" <[EMAIL PROTECTED]>
>To: "'[EMAIL PROTECTED]'" <[EMAIL PROTECTED]>
>Subject: design question about action chaining
>Date: Tue, 1 Apr 2003 11:30:39 -0800
>
>
>I have been tasked with porting an existing web application with it's 
own
>proprietary controller architecture to using Struts.
>
>As they are both web controller architectures, they have many 
similarities,
>but I'm running into one difference in overall architecture that I'm 
having
>difficulty resolving.
>
>This difficulty is most closely related to the 'action chaining' 
posts I've
>been able to find in the mailing list archives.
>
>Specifically, I have over 400 pages mapped to various actions (our
>controller calls them that, and they're roughly synonymous with struts
>actions.)  However, our controller allows specifying a list of 
actions to
>execute on a per-page, and per-page-set basis.  In other words, we can
>assign an action like 'Ensure Session initialization has been
>completed/Initialize session' to every page in the site with a single
>mapping (assuming you've already listed all the pages.)  Or you can 
assign
>it to 90% of your pages if you happen to desire.  We have 
approximatly ten
>actions that happen on between 60-99% of the pages on our site.  If 
we were
>to directly translate this to the struts mapping system we would end up
>having to re-specify those ten actions on most of those 400+ pages,
>creating
>long action chains for each page (a whole lot of duplication: hard to
>maintain, easy to get wrong, etc.)
>
>So, concep

RE: BeanUtils ArrayIndexOutOfBoundsException on session timeout of form submit.

[Derek Richardson]

Handle the session time out with a filter?

> -Original Message-
> From: Ka-Wai Chan [mailto:[EMAIL PROTECTED]
> Sent: Tuesday, April 01, 2003 4:26 PM
> To: [EMAIL PROTECTED]
> Subject: BeanUtils ArrayIndexOutOfBoundsException on session 
> timeout of
> form submit.
> 
> 
> Hello
> 
> I currently have arrays of objects in my Session Form object 
> which gets 
> populated by struts.  All is fine except when the session times out, 
> Struts still wants to populate the arrays but can't because 
> they aren't 
> initialized to the right size anymore.  And the place where I handle 
> session time out (BaseAction) is called after this happens.  Any 
> suggestions on how to intercept this?  Do I have to extend the 
> controller servlet?
> 
> Thanks
> Ka-Wai
> 
> Here is the stack trace:
> 
> 
> java.lang.ArrayIndexOutOfBoundsException
>   at java.lang.reflect.Array.set(Native Method)
>   at 
> org.apache.commons.beanutils.PropertyUtils.setIndexedProperty(
> PropertyUtils.java:1468)
>   at 
> org.apache.commons.beanutils.BeanUtils.setProperty(BeanUtils.java:918)
>   at 
> org.apache.commons.beanutils.BeanUtils.populate(BeanUtils.java:729)
>   at 
> org.apache.struts.util.RequestUtils.populate(RequestUtils.java:1097)
>   at 
> org.apache.struts.action.RequestProcessor.processPopulate(Requ
> estProcessor.java:798)
>   at 
> org.apache.struts.action.RequestProcessor.process(RequestProce
> ssor.java:254)
>   at 
> org.apache.struts.action.ActionServlet.process(ActionServlet.j
> ava:1422)
>   at 
> org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:523)
>   at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
>   at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
>   at 
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilt
> er(ApplicationFilterChain.java:247)
>   at 
> org.apache.catalina.core.ApplicationFilterChain.doFilter(Appli
> cationFilterChain.java:193)
>   at 
> org.apache.catalina.core.StandardWrapperValve.invoke(StandardW
> rapperValve.java:256)
>   at 
> org.apache.catalina.core.StandardPipeline$StandardPipelineValv
> eContext.invokeNext(StandardPipeline.java:643)
>   at 
> org.apache.catalina.core.StandardPipeline.invoke(StandardPipel
> ine.java:480)
>   at 
> org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
>   at 
> org.apache.catalina.core.StandardContextValve.invoke(StandardC
> ontextValve.java:191)
>   at 
> org.apache.catalina.core.StandardPipeline$StandardPipelineValv
> eContext.invokeNext(StandardPipeline.java:643)
>   at 
> org.apache.catalina.core.StandardPipeline.invoke(StandardPipel
> ine.java:480)
>   at 
> org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
>   at 
> org.apache.catalina.core.StandardContext.invoke(StandardContex
> t.java:2415)
>   at 
> org.apache.catalina.core.StandardHostValve.invoke(StandardHost
> Valve.java:180)
>   at 
> org.apache.catalina.core.StandardPipeline$StandardPipelineValv
> eContext.invokeNext(StandardPipeline.java:643)
>   at 
> org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDi
> spatcherValve.java:171)
>   at 
> org.apache.catalina.core.StandardPipeline$StandardPipelineValv
> eContext.invokeNext(StandardPipeline.java:641)
>   at 
> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReport
> Valve.java:172)
>   at 
> org.apache.catalina.core.StandardPipeline$StandardPipelineValv
> eContext.invokeNext(StandardPipeline.java:641)
>   at 
> org.apache.catalina.core.StandardPipeline.invoke(StandardPipel
> ine.java:480)
>   at 
> org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
>   at 
> org.apache.catalina.core.StandardEngineValve.invoke(StandardEn
> gineValve.java:174)
>   at 
> org.apache.catalina.core.StandardPipeline$StandardPipelineValv
> eContext.invokeNext(StandardPipeline.java:643)
>   at 
> org.apache.catalina.core.StandardPipeline.invoke(StandardPipel
> ine.java:480)
>   at 
> org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
>   at 
> org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.
> java:223)
>   at 
> org.apache.coyote.http11.Http11Processor.process(Http11Process
> or.java:594)
>   at 
> org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandle
> r.processConnection(Http11Protocol.java:392)
>   at 
> org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoi
> nt.java:565)
>   at 
> org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(
> ThreadPool.java:619)
>   at java.lang.Thread.run(Thread.java:479)
> 
> 
> 
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RE: Help with validation

[Wendy Smoak]

Rick wrote:
> Maybe I'm missing something because if you are setting this up why do
> you really need to validate it? I usually only need the validation
> framework for making sure the user doesn't mess up. It sounds like you
> are using it to double check that you added the hidden field on the
> page - but why would that need to be validated if you put it there?
> Sorry if I'm missing something.

There's more to the story, but I'm still making it MUCH harder than it has
to be.

For various reasons I have never been able to convince a Form bean to hold
all of the data that I need to manipulate.  So most of my Forms are used in
conjunction with a DTO which sits in session scope alongside the Form bean.
(These forms are for editing fairly complex database records.)

In this case, I'm not trying to make sure a form field has been filled in,
I'm really trying to make sure that a property of the DTO has been set.  But
while Boolean seemed natural, what I really need is a String that either
gets set to some text, or else left blank, and then I can just use
'required'.

Thanks for being there to bounce ideas off of!  I may still be completely on
the wrong track, but so far, things are working.  I might be able to ditch
the DTO's if I could figure out nested and/or indexed properties.

-- 
Wendy Smoak
Applications Systems Analyst, Sr.
Arizona State University PA Information Resources Management

Re: design question about action chaining

[Igor Shabalov]

	Sure, you can.
	Sorry, I'm thinking in Russian, sometimes that produces really ugly 
English at the output :-)

On Tue, 1 Apr 2003 17:18:15 -0500, Paul Yunusov <[EMAIL PROTECTED]> 
wrote:

On Tuesday 01 April 2003 03:59 pm, Igor Shabalov wrote:
You can not possibly imagine how useful and powerful can be good GUI 
tool
when you handle really big and cumbersome struts-config file. 	Actually 
it
can give you much more capability to implement such pipes, filers and
“assembling” of application from pre-defined action components.
Why, I can.

Paul


On Tue, 1 Apr 2003 15:12:34 -0500, Paul Yunusov <[EMAIL PROTECTED]>

wrote:
> On Tuesday 01 April 2003 03:00 pm, Thorin Linderholm wrote:
>> The static method you suggest would be very cumbersome to implement 
and
>> maintain, requiring hard-coding calls to each bit of functionality I
>> wanted
>> on each page (aghh!)  But thanks for the reply :-)
>>
>> I have to disagree that 'If they are a business tier concept, Struts
>> should
>> have nothing to do with
>> chaining them.'
>>
>> The struts ActionServlet and the page mappings in the struts-config 
are
>> the
>> 'controller' portion of Struts.  The whole of Struts is much more 
than
>> the
>> 'C' in MVC.  It has taglibs for supporting the V, and actions are in
>> fact
>> always implementing buisness logic (they decide what page to go to by
>> returning a 'forward': definite buisness logic, if there is such a
>> thing.)
>> And that's always been a gray area in MVC for me: does all the 
buisness
>> logic belong in the model, or can it also go in the controller?  Or 
is
>> there an MVCC where there is a 'view' controller and 'buisness'
>> controller
>> (which seems a bit redundant to me.)
>
> Well, at one point you will wonder which is more cumbersome: coding
> Action classes or having a mile-long struts-config.xml.
>
> Paul
>
>> -Original Message-
>> From: Paul Yunusov [mailto:[EMAIL PROTECTED]
>> Sent: Tuesday, April 01, 2003 11:43 AM
>> To: Struts Users Mailing List
>> Subject: Re: design question about action chaining
>>
>> On Tuesday 01 April 2003 02:30 pm, Thorin Linderholm wrote:
>> > I have been tasked with porting an existing web application with 
it's
>>
>> own
>>
>> > proprietary controller architecture to using Struts.
>> >
>> > As they are both web controller architectures, they have many
>>
>> similarities,
>>
>> > but I'm running into one difference in overall architecture that 
I'm
>>
>> having
>>
>> > difficulty resolving.
>> >
>> > This difficulty is most closely related to the 'action chaining' 
posts
>>
>> I've
>>
>> > been able to find in the mailing list archives.
>> >
>> > Specifically, I have over 400 pages mapped to various actions (our
>> > controller calls them that, and they're roughly synonymous with 
struts
>> > actions.)  However, our controller allows specifying a list of 
actions
>>
>> to
>>
>> > execute on a per-page, and per-page-set basis.  In other words, we 
can
>> > assign an action like 'Ensure Session initialization has been
>> > completed/Initialize session' to every page in the site with a 
single
>> > mapping (assuming you've already listed all the pages.)  Or you can
>> > assign it to 90% of your pages if you happen to desire.  We have
>> > approximatly ten actions that happen on between 60-99% of the pages 
on
>> > our site.  If we
>>
>> were
>>
>> > to directly translate this to the struts mapping system we would 
end
>>
>> up
>>
>> > having to re-specify those ten actions on most of those 400+ pages,
>> > creating long action chains for each page (a whole lot of 
duplication:
>>
>> hard
>>
>> > to maintain, easy to get wrong, etc.)
>> >
>> > So, conceptually, I want to be able to apply a few different bits 
of
>> > logic to whole sets of pages.  Some of those 'bits of logic' 
(actions
>>
>> if
>>
>> > you will,) interrupt the process and forward to a different page 
(page
>> > access rules for instance.)
>> >
>> > There are several possible solutions that I've come up with, but so
>>
>> far
>>
>> all
>>
>> > of them involve either hacks, extending struts (which happens to
>>
>> partialy
>>
>> > eliminate the reason I'm being required to move to Struts, and so
>>
>> isn't
>>
>> > very favored by my supperiors,) some complicated java inheritance
>>
>> hierarchy
>>
>> > where I inherit non-related functionality in those ten actions into 
a
>>
>> set
>>
>> > of compound actions, each inheriting in the set of functionality we
>>
>> want
>>
>> > (lame,) or I could implement a 'view preprocessor' of some kind 
that
>> > parallels the struts-config and defines processing that I need to 
do
>>
>> for
>>
>> > each view page (which requires me to have two completely redundant
>>
>> sets
>>
>> > of page mappings, and apears to me to obsolete the need for Struts 
in
>>
>> the
>>
>> > first place (if we were to ignore it's tag libraries and other 
helper
>> > classes which we also already have proprietary equivalents to.)
>> >
>> > I'd love to hear from anyone about other poss

RE: HELP: Dispaly Date in a JSP that used Tiles

[Gareth Andrew]

I think your problem has nothing to do with tiles or jsp.  You just need 
to write the output to a control instead of trying to write to the page.
If the browser were to allow your code to work as you have written it 
you would actually get a list of times.
The following code should work - it renders to a named textBox.

BEGINNING OF CODE SAMPLE --



  function aff_heure() {

   var d=new Date()

   var weekdays=new 
Array("Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday")

   var monthname=new 
Array("Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec")



var weekday=weekdays[d.getDay()]

var date = d.getDate()

var month = monthname[d.getMonth()]

   var year = d.getFullYear()

   var hour = d.getHours()

   var minute = d.getMinutes()

   var second = d.getSeconds()


var time = new String(weekday + " " + date

 + "." + month + " " + year

 + ", " + hour + ":" + minute

 + ":" + second)

document.myForm.dateControl.value=time;



  
   setTimeout("aff_heure()",100);

  }

 



   

END OF CODE SAMPLE --

Hope this helps,

Gareth

PS.  You can also render to put your answer in other html objects such 
as spans and divs but if you're trying to make it work on as many 
browsers as possible that might be a bit of a headache.
PPS.  Why not use d.toGMTString() or d.toLocaleString() instead of 
trying to format the string yourself?

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