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: [email protected]
> To: [email protected]
> 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
>
>
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