<%
String path = request.getContextPath();
String basePath = request.getScheme() + "://" + request.getServerName() + ":" + request.getServerPort() + path + "/";
%>
<head>
<base href="<%=basePath%>">
<link href="assets/plugins/font-awesome/css/font-awesome.min.css" rel="stylesheet" type="text/css"/>
</head>
配置了绝对路径，页面就可直接使用webapp的文件路径等。