JSP中EL表达式取值问题记录（未解决）

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

    $(function() {
        console.info(${basePath});
        console.info("${basePath}");
        console.info(‘${basePath}‘);
        console.info("<%=basePath%>");
        console.info(<%=basePath%>);
    }

console.info("<%=basePath%>");