K, Lets thought about creating a separate links (action mapping in struts.xml) for each course you add, If there are 10 users who adds 10 courses each, then its hard to maintain your struts.xml, So this solution is not at all feasible, recommended and not used, never.
Usually this things are done by using course Id and names which are passed (as a URL parameters) as per the course selected by user.
Here is How:
1. User adds course -> Course saves into db with auto generated Id/code (PK) (Database)
e.g COURSE_TABLE
2. Admin retrieves courses which are not approved yet -> So it gets listed as (JSP page)
Approve Courses:
1.
My Course
3. When admin clicks for approval, on above link, the "ApproveCourses' action gets called and you can do whatever you wants with course whose id is "1".
HTH