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Posted to user@struts.apache.org by Russell Neufeld <ru...@hds.com> on 2009/04/15 22:00:34 UTC
Struts2 equivalent of
Hi all,
We're porting an app from Struts 1 to Struts 2, and I'm having
trouble figuring out how to conditionally include a portion of a JSP
depending on the role of the user principal. In Struts 1 we did this:
<logic:present role="SERVICE,SYSTEM">
... some html ...
</logic:present>
What's the preferred way of doing this in Struts2? Thanks,
Russ
Re: Struts2 equivalent of
Posted by Russell Neufeld <ru...@hds.com>.
You're right - the <s:if> method may be a quicker change. I'll give
that a shot. Thanks for the quick answer.
Russ
Wes Wannemacher wrote:
> On Wednesday 15 April 2009 16:00:34 Russell Neufeld wrote:
>
>> Hi all,
>>
>> We're porting an app from Struts 1 to Struts 2, and I'm having
>> trouble figuring out how to conditionally include a portion of a JSP
>> depending on the role of the user principal. In Struts 1 we did this:
>>
>> <logic:present role="SERVICE,SYSTEM">
>> ... some html ...
>> </logic:present>
>>
>> What's the preferred way of doing this in Struts2? Thanks,
>>
>> Russ
>>
>
> There are a couple of ways to do it, personally, I would use Spring Security
> and incorporate their tag library. It will eliminate quite a bit of work on
> your part.
>
> Since you are probably pressed for time since this is an upgrade effort, the
> better method would be to expose your user object in a way that you can get at
> the list of roles (such as putting it in the session). Then, just use s:if and
> some OGNL to check like this -
>
> <s:if test="#session.user.roles.contains('REQUIRED_ROLE')">
> ...
> </s:if>
>
> -Wes
>
>
RE: Struts2 equivalent of
Posted by Security Management <li...@secmgmt.com>.
I second the Spring Security stuff, it's great.
-----Original Message-----
From: Wes Wannemacher [mailto:wesw@wantii.com]
Sent: Wednesday, April 15, 2009 4:09 PM
To: Struts Users Mailing List
Subject: Re: Struts2 equivalent of <logic:present role=""...>
On Wednesday 15 April 2009 16:00:34 Russell Neufeld wrote:
> Hi all,
>
> We're porting an app from Struts 1 to Struts 2, and I'm having
> trouble figuring out how to conditionally include a portion of a JSP
> depending on the role of the user principal. In Struts 1 we did this:
>
> <logic:present role="SERVICE,SYSTEM">
> ... some html ...
> </logic:present>
>
> What's the preferred way of doing this in Struts2? Thanks,
>
> Russ
There are a couple of ways to do it, personally, I would use Spring Security
and incorporate their tag library. It will eliminate quite a bit of work on
your part.
Since you are probably pressed for time since this is an upgrade effort, the
better method would be to expose your user object in a way that you can get
at
the list of roles (such as putting it in the session). Then, just use s:if
and
some OGNL to check like this -
<s:if test="#session.user.roles.contains('REQUIRED_ROLE')">
...
</s:if>
-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
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Re: Struts2 equivalent of
Posted by Dave Newton <ne...@yahoo.com>.
Martin Gainty wrote:
> yes the Struts 1.x if tag has been deprecated
>
> you can check for specific attributes as wes suggested
> OR
> change your struts-spring autowire type to "constructor" in your interceptor stack e.g.
> \WEB-INF\src\java\struts.xml
>
> <interceptors>
> <interceptor name="autowire" class="com.opensymphony.xwork.spring.interceptor.ActionAutowiringInterceptor">
> <param name="autowireStrategy">2</param>
> </interceptor>
> <interceptor-stack name="autowireDefault">
> <interceptor-ref name="autowire"/>
> <interceptor-ref name="defaultStack"/>
> </interceptor-stack>
> </interceptors>
> and configure the springframework ContextLoaderListener in web.xml
>
> <listener>
> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
> </listener>
>
> where the individual bean has been configured as
>
> <bean name="some-action" class="fully.qualified.class.name" singleton="false">
> </bean>
> take a brief look at the characteristics of your Bean class from Bean.java
>
> public boolean start(Writer writer) {
> boolean result = super.start(writer);
> ValueStack stack = getStack();
> try {
> String beanName = findString(name, "name", "Bean name is required. Example: com.acme.FooBean");
> bean = objectFactory.buildBean(ClassLoaderUtil.loadClass(beanName, getClass()), stack.getContext());
> } catch (Exception e) {
> LOG.error("Could not instantiate bean", e);
> return false;
> }
>
> // push bean on stack
> stack.push(bean);
> ...
> }
> that last statement stack.push(bean) means the bean is now on the stack to test with!
>
> from jsp
> <s:property value="#beanname" />
>
> we now know the bean as a constructed Bean object
> (via the decorated name of the bean)
> feel free to use the stack.push to push the necessary value to be accessed
> later by <s:property ... /> in your jsp..
Seems like it'd be way easier just to expose it as an action property.
Dave
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RE: Struts2 equivalent of
Posted by Martin Gainty <mg...@hotmail.com>.
yes the Struts 1.x if tag has been deprecated
you can check for specific attributes as wes suggested
OR
change your struts-spring autowire type to "constructor" in your interceptor stack e.g.
\WEB-INF\src\java\struts.xml
<interceptors>
<interceptor name="autowire" class="com.opensymphony.xwork.spring.interceptor.ActionAutowiringInterceptor">
<param name="autowireStrategy">2</param>
</interceptor>
<interceptor-stack name="autowireDefault">
<interceptor-ref name="autowire"/>
<interceptor-ref name="defaultStack"/>
</interceptor-stack>
</interceptors>
and configure the springframework ContextLoaderListener in web.xml
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
where the individual bean has been configured as
<bean name="some-action" class="fully.qualified.class.name" singleton="false">
</bean>
take a brief look at the characteristics of your Bean class from Bean.java
public boolean start(Writer writer) {
boolean result = super.start(writer);
ValueStack stack = getStack();
try {
String beanName = findString(name, "name", "Bean name is required. Example: com.acme.FooBean");
bean = objectFactory.buildBean(ClassLoaderUtil.loadClass(beanName, getClass()), stack.getContext());
} catch (Exception e) {
LOG.error("Could not instantiate bean", e);
return false;
}
// push bean on stack
stack.push(bean);
...
}
that last statement stack.push(bean) means the bean is now on the stack to test with!
from jsp
<s:property value="#beanname" />
we now know the bean as a constructed Bean object
(via the decorated name of the bean)
feel free to use the stack.push to push the necessary value to be accessed
later by <s:property ... /> in your jsp..
Martin
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> From: wesw@wantii.com
> To: user@struts.apache.org
> Subject: Re: Struts2 equivalent of <logic:present role=""...>
> Date: Wed, 15 Apr 2009 16:08:59 -0400
>
> On Wednesday 15 April 2009 16:00:34 Russell Neufeld wrote:
> > Hi all,
> >
> > We're porting an app from Struts 1 to Struts 2, and I'm having
> > trouble figuring out how to conditionally include a portion of a JSP
> > depending on the role of the user principal. In Struts 1 we did this:
> >
> > <logic:present role="SERVICE,SYSTEM">
> > ... some html ...
> > </logic:present>
> >
> > What's the preferred way of doing this in Struts2? Thanks,
> >
> > Russ
>
> There are a couple of ways to do it, personally, I would use Spring Security
> and incorporate their tag library. It will eliminate quite a bit of work on
> your part.
>
> Since you are probably pressed for time since this is an upgrade effort, the
> better method would be to expose your user object in a way that you can get at
> the list of roles (such as putting it in the session). Then, just use s:if and
> some OGNL to check like this -
>
> <s:if test="#session.user.roles.contains('REQUIRED_ROLE')">
> ...
> </s:if>
>
> -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@struts.apache.org
> For additional commands, e-mail: user-help@struts.apache.org
>
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Re: Struts2 equivalent of
Posted by Wes Wannemacher <we...@wantii.com>.
On Wednesday 15 April 2009 16:00:34 Russell Neufeld wrote:
> Hi all,
>
> We're porting an app from Struts 1 to Struts 2, and I'm having
> trouble figuring out how to conditionally include a portion of a JSP
> depending on the role of the user principal. In Struts 1 we did this:
>
> <logic:present role="SERVICE,SYSTEM">
> ... some html ...
> </logic:present>
>
> What's the preferred way of doing this in Struts2? Thanks,
>
> Russ
There are a couple of ways to do it, personally, I would use Spring Security
and incorporate their tag library. It will eliminate quite a bit of work on
your part.
Since you are probably pressed for time since this is an upgrade effort, the
better method would be to expose your user object in a way that you can get at
the list of roles (such as putting it in the session). Then, just use s:if and
some OGNL to check like this -
<s:if test="#session.user.roles.contains('REQUIRED_ROLE')">
...
</s:if>
-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
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