for (Vote v : list) { request.setAttribute("v"+v.getVno(), df.format(v.getNum()*100.0/num)+"%"); } request.getRequestDispatcher("Result.jsp").forward(request, response);將數(shù)據(jù)傳入Result.jsp之后，如果使用? <%=request.getParameter("v1") %>取值為null而${v1} ?卻可以取到對于的數(shù)值。?
request.getParameter("v1")取值為空問題
點丶闕4015137
2017-08-12 18:18:33
