jsp - Struts 2 s:if with getText -

i want see if message key presented in message bundles. tried below none of them worked:

<s:if test=" gettext('site.message') == 'site.message'"> <s:if test=" gettext('site.message').equals('site.message')"> <s:if test=" %{gettext('site.message').equals('site.message')}"> 

but workaround works fine:

<s:text name="site.message" var="test"/> <s:if test=" #test=='site.message'">    please consider: <s:text name="site.message"/> </s:if> 

so possible omit #test variable , works in s:if

it's possible if use body of <s:text> default message instead of body of <s:if> tag. docs page

if named message not found in property file, the body of tag used default message. if no body used, stack searched, , if value returned, written output. if no value found on stack, key of message written out. use key set default message.

the equivalent code

<s:text name="site.message"><s:text name="error.message"/></s:text> 

also consider default value of gettext(string atextname, string defaultvalue).

gets message based on key, or, if message not found, supplied default value returned.

then can use

<s:if test="gettext('site.message','') != ''">    please consider: <s:text name="site.message"/> </s:if> <s:else>    <s:text name="error.message"/> </s:else> 

or check key haskey(string key)

checks if message key exists.

<s:if test="haskey('site.message')">    please consider: <s:text name="site.message"/> </s:if> <s:else>    <s:text name="error.message"/> </s:else>