How to request.getParameterNames into List of strings?
Just construct a new ArrayList wrapping the keyset of the request parameter map. I only wonder how it’s useful to have it as List<String>. A Set<String> would make much more sense as parameter names are supposed to be unique (a List can contain duplicate elements). A Set<String> is also exactly what the map’s keyset already represents. Or perhaps you don’t need it at all for the particular functional requirement … Read more