解决方法
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<link href="<%=basePath%>/css/zhuce.css" rel="stylesheet" type="text/css" />
原文：http://www.cnblogs.com/lanliying/p/4341531.html