public static String getServletURL ( HttpServletRequest req , String path ) { StringBuffer buf = req . getRequestURL ( ) ; String sname = req . getServletPath ( ) ; buf . delete ( buf . length ( ) - sname . length ( ) , buf . length ( ) ) ; if ( ! path . startsWith ( "/" ) ) { buf . append ( "/" ) ; } buf . append ( path ) ; return buf . toString ( ) ; }
Prepends the server port and servlet context path to the supplied path resulting in a fully - formed URL for requesting a servlet .