Bootstrap
模板
配置文件
<!doctype html>
<html lang="zh-CN">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<!-- 上述3个meta标签*必须*放在最前面,任何其他内容都*必须*跟随其后! -->
<title>Bootstrap 101 Template</title>
<!-- Bootstrap -->
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/3.4.1/css/bootstrap.min.css" integrity="sha384-HSMxcRTRxnN+Bdg0JdbxYKrThecOKuH5zCYotlSAcp1+c8xmyTe9GYg1l9a69psu" crossorigin="anonymous">
<!-- HTML5 shim 和 Respond.js 是为了让 IE8 支持 HTML5 元素和媒体查询(media queries)功能 -->
<!-- 警告:通过 file:// 协议(就是直接将 html 页面拖拽到浏览器中)访问页面时 Respond.js 不起作用 -->
<!--[if lt IE 9]>
<script src="https://cdn.jsdelivr.net/npm/html5shiv@3.7.3/dist/html5shiv.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/respond.js@1.4.2/dest/respond.min.js"></script>
<![endif]-->
</head>
<body>
<h1>你好,世界!</h1>
<!-- jQuery (Bootstrap 的所有 JavaScript 插件都依赖 jQuery,所以必须放在前边) -->
<script src="https://cdn.jsdelivr.net/npm/jquery@1.12.4/dist/jquery.min.js" integrity="sha384-nvAa0+6Qg9clwYCGGPpDQLVpLNn0fRaROjHqs13t4Ggj3Ez50XnGQqc/r8MhnRDZ" crossorigin="anonymous"></script>
<!-- 加载 Bootstrap 的所有 JavaScript 插件。你也可以根据需要只加载单个插件。 -->
<script src="https://stackpath.bootstrapcdn.com/bootstrap/3.4.1/js/bootstrap.min.js" integrity="sha384-aJ21OjlMXNL5UyIl/XNwTMqvzeRMZH2w8c5cRVpzpU8Y5bApTppSuUkhZXN0VxHd" crossorigin="anonymous"></script>
</body>
</html>
更改后模板
<!doctype html>
<html lang="zh-CN">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<!-- 上述3个meta标签*必须*放在最前面,任何其他内容都*必须*跟随其后! -->
<title>Bootstrap 101 Template</title>
<!-- Bootstrap -->
<link rel="stylesheet" href="css/bootstrap.min.css" integrity="sha384-HSMxcRTRxnN+Bdg0JdbxYKrThecOKuH5zCYotlSAcp1+c8xmyTe9GYg1l9a69psu" crossorigin="anonymous">
<!-- jQuery (Bootstrap 的所有 JavaScript 插件都依赖 jQuery,所以必须放在前边) -->
<script src="js/jquery-3.5.1.min.js" ></script>
<!-- 加载 Bootstrap 的所有 JavaScript 插件。你也可以根据需要只加载单个插件。 -->
<script src="js/bootstrap.min.js" ></script>
</head>
<body>
<h1>你好,世界!</h1>
</body>
</html>
响应式布局
栅格系统
基本使用
<div class = "container-fluid">
<div class = "row">
<div class = "col-lg-1 col-xs-2" >栅格系统</div>
<div class = "col-lg-1 col-xs-2" >栅格系统</div>
<div class = "col-lg-1 col-xs-2" >栅格系统</div>
<div class = "col-lg-1 col-xs-2" >栅格系统</div>
<div class = "col-lg-1 col-xs-2" >栅格系统</div>
<div class = "col-lg-1 col-xs-2" >栅格系统</div>
<div class = "col-lg-1 col-xs-2" >栅格系统</div>
<div class = "col-lg-1 col-xs-2" >栅格系统</div>
<div class = "col-lg-1 col-xs-2" >栅格系统</div>
<div class = "col-lg-1 col-xs-2" >栅格系统</div>
<div class = "col-lg-1 col-xs-2" >栅格系统</div>
<div class = "col-lg-1 col-xs-2" >栅格系统</div>
</div>
</div>
CSS全局布局,组件,js插件看文档复制粘贴就行
网站:https://v3.bootcss.com/
XML
可拓展标记语言
可拓展:自定标签
格式
<?xml version = "1.0" encoding = "utf-8" ?>
<students>
<student number = "1">
<name>zhangsan</name>
<age>11</age>
<address>dahao</address>
</student>
<student number = "2">
<name>lisi</name>
<age>20</age>
<address>meiguo</address>
</student>
</students>
Jsoup
解析器
解析快速入门
public static void main(String[] args) throws IOException {
String path = jsoupDemo.class.getClassLoader().getResource("student.xml").getPath();
// 解析xml文档,加载进内存
Document document = Jsoup.parse(new File(path), "utf-8");
// 获取元素对象
Elements elements = document.getElementsByTag("name");
// 获取第一个元素
Element element = elements.get(0);
// 获取文本
String name = element.text();
}
selector选择器
Elements elements = document.select("name");
Elements elements1 = document.select("student[number='1']");
System.out.println(elements1);