how to initialize database connection pool in struts 2?

[john lee]

 
in structs 1, in APPLICATION/WEB-INF/web.xml, i have the following line
 
  <servlet>
        <servlet-name>DBInit</servlet-name>
        <servlet-class>neuco.db.DBInitServlet</servlet-class>
        <load-on-startup>1</load-on-startup>
    </servlet>
 
to initialize/launch default databse connection pool, how can i do this in 
struts 2 ?
 
 
tks in advance
 
john