jsp、css中引入外部资源相对路径的问题

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

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

<script src="js/common/jquery-1.11.1.min.js" language="javascript"
    type="text/javascript"></script>
<script src="js/common/frame.js" language="javascript"
    type="text/javascript"></script>
<link href="css/common/frame.css"
    rel="stylesheet" type="text/css" />
<link rel="shortcut icon" href="images/favicon.ico" type="image/x-icon" />

.top {
    position: absolute;
    left: 0;
    top: 95px;
    right: 0;
    height: 120px;
    background: url(images/common/title.jpg) repeat-x
}