I am working on the Struts2 framework with JSP.
In my samplePrj.properties file, in that
com.samplePrj.Successmessage = Saved Successful
Use the text tag
<s:i18n name="samplePrj">
<s:text name="com.samplePrj.Successmessage" />
</s:i18n>
it will load the bundle using i18n tag from samplePrj.properties and print the value from key com.samplePrj.Successmessage in it.
or you can use it with getText() but your action class should extend ActionSupport.
<s:property value="getText('com.samplePrj.Successmessage')"/>
You can use getText() method to read from properties files.
<s:set var="variable" value="getText('com.samplePrj.Successmessage')"/>
<s:if test="myVariable == #variable">
//do what u want
</s:if>