访问Jsp页面 Css没被加载

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%
  String path = request.getContextPath();
  String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path;
%>
<html>
<head>
    <meta name="viewport" content="width=device-width,initial-scale=1">
    <title>bootstrap</title>
    <link rel="stylesheet" href="<%=basePath%>/css/bootstrap.min.css">
    <link rel="stylesheet" href="<%=basePath%>/css/signin.css">
</head>

    <servlet-mapping>
        <servlet-name>mvc-dispatcher</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>

    <servlet-mapping>
        <servlet-name>default</servlet-name>
        <url-pattern>*.css</url-pattern>
    </servlet-mapping>

访问Jsp页面 Css没被加载