One possibility..
First make sure you have the hashmap is in context (use a tag to put it into page context), or just put it in the session if it will be used over several pages..
Let's assume it's in page context, with the name 'contextHash':
<logic:iterate id="dbHash" name="contextHash" type="java.util.HashMap">
Name:<bean:write name="dbhash" property="name" />
Age:<bean:write name="dbhash" property="age" />
.
.
.
</logic:iterate>
Didn't test it.. hopefully it'll help you out.
There's an example of this in the docs.. here
http://struts.apache.org/userGuide/struts-logic.html#iterate