JSP路径写法问题

<%   String path = request.getContextPath();   String basePath = request.getScheme() + "://"         + request.getServerName() + ":" + request.getServerPort()         + path + "/";%>

<base href="<%=basePath%>">

<link rel="stylesheet" href="static/ace/css/chosen.css" />
重定向不能加“/”