Accessing userPrincipal via EL - why doesn't this work?

[Edward Winchester]

Hello,

I can print out the principal like this:

    <%= request.getUserPrincipal() %>

This doesn't work:

    <c:out value="${request.userPrincipal}"/>

But this does:

    <c:out value="${pageContext.request.userPrincipal}"/>

Can someone explain why the 2nd doesn't work please?

Thanks,

Ed

[avi sinha]

request is not an implicit object for El that's why it is happening. you can access the actual jsp implicit object reference "request" using pageContext.request
and userPrinciple is a property of request here
avi sinha

[Edward Winchester]

avi sinha wrote: request is not an implicit object for El that's why it is happening. you can access the actual jsp implicit object reference "request" using pageContext.request
and userPrinciple is a property of request here
avi sinha

Thank you. I continually get confused with the different methods.

[anand chouti]

<c:out value="${requestScope.userPrincipal}"/>
whenever we use attributes from request or session, EL uses requestScope or sessionScope to map the same. The above EL expression should work

[Edward Winchester]

anand chouti wrote: <c:out value="${requestScope.userPrincipal}"/>
whenever we use attributes from request or session, EL uses requestScope or sessionScope to map the same. The above EL expression should work

Actually, it doesn't work. I tried it before you posted. I was going to ask why but thought I'd plough through the docs instead. Now we're on the topic, anyone know why?

Thanks,

Ed

[Bear Bibeault]

anand chouti wrote: <c:out value="${requestScope.userPrincipal}"/>
whenever we use attributes from request or session, EL uses requestScope or sessionScope to map the same. The above EL expression should work

Nonsense. Request scope and the request instance are not the same thing.