That shouldn't be too hard. You just have to iterate over the list of objects and display the properties. It should work with a code similar to this (I hope I've not forgotten the syntax of struts tags )
The value is interpreted as an OGNL expression, so you can just pass in the item member name, as in:
Mark E Hansen
Joined: Apr 01, 2009
I should point out that this works because in Struts 2, the element that is the target of the iteration (the item on the list) is pushed on to the Value Stack at the start of the loop (and popped-off at the end). This means that references to variable names that match those on the object will evaluate to the object on the Value Stack. It's like magic!