public ActionForward  execute(ActionMapping mapping,
                                    ActionForm form,
                                    HttpServletRequest request,
                                    HttpServletResponse response) throws Exception
{
 javax.sql.DataSource dataSource;
 java.sql.Connection myConnection;
 try 
 {
  dataSource = getDataSource(request);
  myConnection = dataSource.getConnection();
  // faire ici le traitmement à partir de la connexion.
 }
 catch (SQLException sqle) 
 {
    ...
 } 
 finally 
 {
    try {
       myConnection.close();
    } catch (SQLException e) {
       getServlet().log("Connection.close", e);
    }
   }
}

...
   try 
   {
      dataSourceA = getDataSource(request, "FirstDataSource");
      ...
      dataSourceB = getDataSource(request, "SecondDataSource");
     ...
   }
   ...