This is a table I've used long time ago:
+--------------------------+-------------------------------------+
| <bean:write name= | <s:property value= |
+==========================+=====================================+
| <bean:message key= | <s:text name= |
+--------------------------+-------------------------------------+
| <html:rewrite | <s:url value= |
+--------------------------+-------------------------------------+
| <html:link action= | <s:a action= |
+--------------------------+-------------------------------------+
| <html:img action= | <img src== |
+--------------------------+-------------------------------------+
| <html:img page= | <img src= |
+--------------------------+-------------------------------------+
| <html:hidden property= | <s:hidden name= |
+--------------------------+-------------------------------------+
| <html:submit | <s:submit |
+--------------------------+-------------------------------------+
| </html:submit> | </s:submit |
+--------------------------+-------------------------------------+
| <html:form | <s:form |
+--------------------------+-------------------------------------+
| </html:form | </s:form |
+--------------------------+-------------------------------------+
| <html:text | <s:textfield |
+--------------------------+-------------------------------------+
| <html:password | <s:password |
+--------------------------+-------------------------------------+
| <html:select property= | <s:select name= |
+--------------------------+-------------------------------------+
| <html:optionsCollection | <s:select list= listKey= listValue= |
+--------------------------+-------------------------------------+
| <html:checkbox property= | <s:checkbox name= |
+--------------------------+-------------------------------------+
| <html:file | <s:file name= |
+--------------------------+-------------------------------------+
| <html:button | <input type=“button” |
+--------------------------+-------------------------------------+
other you can find in my answers.