RE: Struts and multiple Web applications on same application server

[Bryant, Doug]

We have run into this problem running jdk 1.4 rc3.  When we switch to 1.3,
the problem goes away

Hope this helps.

Doug

-Original Message-
From: Dustin Aleksiuk [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, January 22, 2002 10:40 AM
To: Struts Users Mailing List
Subject: Re: Struts and multiple Web applications on same application
server


I just wanted to let you know that the exact same problem drove me nuts 2
years
ago with Weblogic 5.1.  I'm sorry you are having that problem, but you
brought
back many funny memories of us pulling our hair out over it.  I don't
remember if
we ever solved it.  When I left that company we had moved to Tomcat.

Dustin Aleksiuk

"Salonen, Aki" wrote:

> Thanks for idea of eliminating chance of a struts problem.
>
> > Do you mean to say, when you make a request
> > "context1/location/page.jsp" and
> > "context2/location/page.jsp" you get the same page even if you update
> > context1 and not context2?
> Yes. This is the way it works.
>
> This is definetly a BEA WebLogig 6.2 problem.
> I configured test.jsp pages to both applications.
> "context1/location/test.jsp" and
> "context2/location/test.jsp".
>
> And added entries to web.xml defining test.jsp as servlet
> with pattern *.test, so every request ending with .test
> would be directed for test.jsp.
>
> What happened was that I modified test.jsp file in both applications
> to ensure recompiling. Then started up WebLogic.
>
> Then I accessed
> "context1/location/test.test" with browser, resulting
> WebLogic to compile test.jsp.
>
> After that when I accessed "context2/location/test.test"
> result was the one produced by "context1/location/test.jsp".
>
> So the one that is compiled first after startup or deploying,
> will be used to produce response. This apperars in both cases
> with startup and re-deploying, so I think this is actually
> related to application deploying which is also part of startup.
>
> At this point no matter how many times I try to refresh browser and
> no matter web context I access, I receive result of the first compiled jsp
> page.
>
> When I modify or touch "context2/location/test.jsp" so that modified
> timestamp changes resulting weblogic to compile jsp page, and after that
> access "context2/location/test.test" result is OK, produced by
> "context2/location/test.jsp".
>
> After many tests it is obvious that WebLogic works right when
> first page is compiled and after that the second will be modified
> to forse re-compiling. Now both URL's "context1/location/test.test" and
> "context2/location/test.test" produce their own content.
>
> Problem appears when application is deployed and JSP files are modified,
> resulting only first JSP accessed (compiled) to produce content for
> both web applications "context2/location/test.test".
>
> Kind regards,
>
> Aki
>
> > -Original Message-
> > From: Alex Paransky [mailto:[EMAIL PROTECTED]]
> > Sent: 21. tammikuuta 2002 22:15
> > To: Struts Users Mailing List
> > Cc: Salonen, Aki
> > Subject: RE: Struts and multiple Web applications on same application
> > server
> >
> >
> > Do you mean to say, when you make a request
> > "context1/location/page.jsp" and
> > "context2/location/page.jsp" you get the same page even if you update
> > context1 and not context2?
> >
> > Seems like a server problem to me.
> >
> > You should be able to remove struts from the equation by
> > creating a simple
> > .jsp page without using any struts tags.  Besides, I don't
> > think that the
> > struts servlet gets involved with every request you make.
> > Only requires
> > that have the mapping specified to map to the servlet in
> > web.xml (usually
> > something with the .do) extension get mapped to the servlet
> > (I could be
> > wrong, I have not used it for too long).
> >
> > -AP_
> >
> > -Original Message-
> > From: Salonen, Aki [mailto:[EMAIL PROTECTED]]
> > Sent: Monday, January 21, 2002 2:09 AM
> > To: '[EMAIL PROTECTED]'
> > Subject: Struts and multiple Web applications on same
> > application server
> >
> >
> > Hello,
> >
> > We have been facing problems when using
> > struts with multiple enterprise applications.
> >
> > It seems that struts supports only one
> > struts application on same application server.
> >
> > Application server we are using is BEA WebLogic 6.2 SP2.
> >
> > Scenario is as described

Re: Struts and multiple Web applications on same application server

[Dustin Aleksiuk]

I just wanted to let you know that the exact same problem drove me nuts 2 years
ago with Weblogic 5.1.  I'm sorry you are having that problem, but you brought
back many funny memories of us pulling our hair out over it.  I don't remember if
we ever solved it.  When I left that company we had moved to Tomcat.

Dustin Aleksiuk

"Salonen, Aki" wrote:

> Thanks for idea of eliminating chance of a struts problem.
>
> > Do you mean to say, when you make a request
> > "context1/location/page.jsp" and
> > "context2/location/page.jsp" you get the same page even if you update
> > context1 and not context2?
> Yes. This is the way it works.
>
> This is definetly a BEA WebLogig 6.2 problem.
> I configured test.jsp pages to both applications.
> "context1/location/test.jsp" and
> "context2/location/test.jsp".
>
> And added entries to web.xml defining test.jsp as servlet
> with pattern *.test, so every request ending with .test
> would be directed for test.jsp.
>
> What happened was that I modified test.jsp file in both applications
> to ensure recompiling. Then started up WebLogic.
>
> Then I accessed
> "context1/location/test.test" with browser, resulting
> WebLogic to compile test.jsp.
>
> After that when I accessed "context2/location/test.test"
> result was the one produced by "context1/location/test.jsp".
>
> So the one that is compiled first after startup or deploying,
> will be used to produce response. This apperars in both cases
> with startup and re-deploying, so I think this is actually
> related to application deploying which is also part of startup.
>
> At this point no matter how many times I try to refresh browser and
> no matter web context I access, I receive result of the first compiled jsp
> page.
>
> When I modify or touch "context2/location/test.jsp" so that modified
> timestamp changes resulting weblogic to compile jsp page, and after that
> access "context2/location/test.test" result is OK, produced by
> "context2/location/test.jsp".
>
> After many tests it is obvious that WebLogic works right when
> first page is compiled and after that the second will be modified
> to forse re-compiling. Now both URL's "context1/location/test.test" and
> "context2/location/test.test" produce their own content.
>
> Problem appears when application is deployed and JSP files are modified,
> resulting only first JSP accessed (compiled) to produce content for
> both web applications "context2/location/test.test".
>
> Kind regards,
>
> Aki
>
> > -Original Message-
> > From: Alex Paransky [mailto:[EMAIL PROTECTED]]
> > Sent: 21. tammikuuta 2002 22:15
> > To: Struts Users Mailing List
> > Cc: Salonen, Aki
> > Subject: RE: Struts and multiple Web applications on same application
> > server
> >
> >
> > Do you mean to say, when you make a request
> > "context1/location/page.jsp" and
> > "context2/location/page.jsp" you get the same page even if you update
> > context1 and not context2?
> >
> > Seems like a server problem to me.
> >
> > You should be able to remove struts from the equation by
> > creating a simple
> > .jsp page without using any struts tags.  Besides, I don't
> > think that the
> > struts servlet gets involved with every request you make.
> > Only requires
> > that have the mapping specified to map to the servlet in
> > web.xml (usually
> > something with the .do) extension get mapped to the servlet
> > (I could be
> > wrong, I have not used it for too long).
> >
> > -AP_
> >
> > -Original Message-
> > From: Salonen, Aki [mailto:[EMAIL PROTECTED]]
> > Sent: Monday, January 21, 2002 2:09 AM
> > To: '[EMAIL PROTECTED]'
> > Subject: Struts and multiple Web applications on same
> > application server
> >
> >
> > Hello,
> >
> > We have been facing problems when using
> > struts with multiple enterprise applications.
> >
> > It seems that struts supports only one
> > struts application on same application server.
> >
> > Application server we are using is BEA WebLogic 6.2 SP2.
> >
> > Scenario is as described:
> > One enterprise application containing for EJB:s providing
> > business logics.
> > Two enterprise applications containg two distinct user interfaces
> > for business logics.
> >
> > We use same action servlet classes in both web applications,
> > inherited from Struts ActionServlet.
> >
> 

RE: Struts and multiple Web applications on same application server

[Salonen, Aki]

Thanks for idea of eliminating chance of a struts problem.

> Do you mean to say, when you make a request 
> "context1/location/page.jsp" and
> "context2/location/page.jsp" you get the same page even if you update
> context1 and not context2?
Yes. This is the way it works.


This is definetly a BEA WebLogig 6.2 problem.
I configured test.jsp pages to both applications.
"context1/location/test.jsp" and
"context2/location/test.jsp".

And added entries to web.xml defining test.jsp as servlet
with pattern *.test, so every request ending with .test
would be directed for test.jsp.

What happened was that I modified test.jsp file in both applications
to ensure recompiling. Then started up WebLogic.

Then I accessed 
"context1/location/test.test" with browser, resulting
WebLogic to compile test.jsp.

After that when I accessed "context2/location/test.test" 
result was the one produced by "context1/location/test.jsp".

So the one that is compiled first after startup or deploying,
will be used to produce response. This apperars in both cases
with startup and re-deploying, so I think this is actually
related to application deploying which is also part of startup.

At this point no matter how many times I try to refresh browser and
no matter web context I access, I receive result of the first compiled jsp
page.

When I modify or touch "context2/location/test.jsp" so that modified
timestamp changes resulting weblogic to compile jsp page, and after that
access "context2/location/test.test" result is OK, produced by
"context2/location/test.jsp".

After many tests it is obvious that WebLogic works right when 
first page is compiled and after that the second will be modified
to forse re-compiling. Now both URL's "context1/location/test.test" and
"context2/location/test.test" produce their own content.

Problem appears when application is deployed and JSP files are modified,
resulting only first JSP accessed (compiled) to produce content for
both web applications "context2/location/test.test".


Kind regards,

Aki





> -Original Message-----
> From: Alex Paransky [mailto:[EMAIL PROTECTED]]
> Sent: 21. tammikuuta 2002 22:15
> To: Struts Users Mailing List
> Cc: Salonen, Aki
> Subject: RE: Struts and multiple Web applications on same application
> server
> 
> 
> Do you mean to say, when you make a request 
> "context1/location/page.jsp" and
> "context2/location/page.jsp" you get the same page even if you update
> context1 and not context2?
> 
> Seems like a server problem to me.
> 
> You should be able to remove struts from the equation by 
> creating a simple
> .jsp page without using any struts tags.  Besides, I don't 
> think that the
> struts servlet gets involved with every request you make.  
> Only requires
> that have the mapping specified to map to the servlet in 
> web.xml (usually
> something with the .do) extension get mapped to the servlet 
> (I could be
> wrong, I have not used it for too long).
> 
> -AP_
> 
> -Original Message-
> From: Salonen, Aki [mailto:[EMAIL PROTECTED]]
> Sent: Monday, January 21, 2002 2:09 AM
> To: '[EMAIL PROTECTED]'
> Subject: Struts and multiple Web applications on same 
> application server
> 
> 
> Hello,
> 
> We have been facing problems when using
> struts with multiple enterprise applications.
> 
> It seems that struts supports only one
> struts application on same application server.
> 
> Application server we are using is BEA WebLogic 6.2 SP2.
> 
> Scenario is as described:
> One enterprise application containing for EJB:s providing 
> business logics.
> Two enterprise applications containg two distinct user interfaces
> for business logics.
> 
> We use same action servlet classes in both web applications,
> inherited from Struts ActionServlet.
> 
> Web application context roots are of course different, but
> relative URL's used are same for both web applications.
> So web.xml and struts-config.xml are exact copies.
> 
> Both web applications have own physical copies of all jars used.
> 
> If I have understood right, two distinct enterprise 
> applications should
> have no knowledge of each other, so there should be own 
> instaces of struts
> for each enterprise application.
> 
> What happens is that server returns responses (JSP generated pages),
> like there would be only one web application.
> Also JSP-page result returned is the one from that web 
> application that has
> latest modifed JSP page.
> 
> It seems that application server does not distinct calls to different
> web applications, but serves pages as if there would be only
> one

RE: Struts and multiple Web applications on same application server

[Alex Paransky]

Do you mean to say, when you make a request "context1/location/page.jsp" and
"context2/location/page.jsp" you get the same page even if you update
context1 and not context2?

Seems like a server problem to me.

You should be able to remove struts from the equation by creating a simple
.jsp page without using any struts tags.  Besides, I don't think that the
struts servlet gets involved with every request you make.  Only requires
that have the mapping specified to map to the servlet in web.xml (usually
something with the .do) extension get mapped to the servlet (I could be
wrong, I have not used it for too long).

-AP_

-Original Message-
From: Salonen, Aki [mailto:[EMAIL PROTECTED]]
Sent: Monday, January 21, 2002 2:09 AM
To: '[EMAIL PROTECTED]'
Subject: Struts and multiple Web applications on same application server


Hello,

We have been facing problems when using
struts with multiple enterprise applications.

It seems that struts supports only one
struts application on same application server.

Application server we are using is BEA WebLogic 6.2 SP2.

Scenario is as described:
One enterprise application containing for EJB:s providing business logics.
Two enterprise applications containg two distinct user interfaces
for business logics.

We use same action servlet classes in both web applications,
inherited from Struts ActionServlet.

Web application context roots are of course different, but
relative URL's used are same for both web applications.
So web.xml and struts-config.xml are exact copies.

Both web applications have own physical copies of all jars used.

If I have understood right, two distinct enterprise applications should
have no knowledge of each other, so there should be own instaces of struts
for each enterprise application.

What happens is that server returns responses (JSP generated pages),
like there would be only one web application.
Also JSP-page result returned is the one from that web application that has
latest modifed JSP page.

It seems that application server does not distinct calls to different
web applications, but serves pages as if there would be only
one "mixed" web application.


Is this a struts or application server related issue?

I know that struts does not support multiple action servlets.

Has somebody faced similar problems or does someone know what this all is
about?

I can provide more details about if needed.


Kind regards,

Aki



__
Aki Salonen
Wincor Nixdorf Oy
System Analyst
web: http://www.wincor-nixdorf.com

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