Bug in Spring MVC the JSP page gets no variables in the controller

Today we have a strange problem:

The JSP code is as follows:

< H1 > data comparison ${name}</H1>

In the controller, there are assignments:

    @RequestMapping (value = "/index.do")    public  String index (Modelmap modelmap) {        Modelmap.put ("name", "Test");         return "/compare/index";    }

But dead and alive does not take effect, after the search, finally know that eclipse default iselignored is true, so it does not take effect

Result method, add in file header:

<%@ page contenttype= "Text/html;charset=utf-8" language= "Java" iselignored= "false"%>

Bug in Spring MVC the JSP page gets no variables in the controller