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hash-router-model.html
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hash-router-model.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>route demo</title>
<style>
* {padding: 0;margin: 0;}
ul li {list-style: none;text-align: center;}
.main {display: flex;height: 600px;}
.main .sidebar {width: 200px;border: 2px solid red;}
.main .sidebar ul {padding-top: 100px;}
.main .sidebar ul li {margin-bottom: 20px;cursor: pointer; }
.main .content {flex: 1;border: 2px solid green;padding: 20px;}
</style>
</head>
<body>
<div class="main">
<div class="sidebar">
<ul class="sidebar-ul">
<li class="stuManage">学生管理</li>
<li class="lesManage">课程管理</li>
<li class="claManage">班级管理</li>
<li class="baiManage">前往百度</li>
</ul>
</div>
<div class="content"></div>
</div>
<script>
// 定义Route，路由对象构造函数
function Route(option) {
this.routes = option.routes;
this.init();
}
// 为Route添加原型方法
Route.prototype = {
constructor: Route,
// 初始化
init() {
// 监听window对象的hashchange事件来获取路由的变化
window.addEventListener("hashchange", (function (e) {
// e.oldURL e.newURL
// 获取改变后的hash值
var hash = location.hash.substring(1);
// 将hash跟本地保存的的路由中的path进行匹配，匹配到指定路由，就执行指定模块的代码
// 如果找不到符合条件的元素，那么route值为空
var route = this.routes.find(item => {
return item.path === hash;
});
if (route) {
route.component(hash);
}
}).bind(this));
// 注册好事件后，立即触发事件，在浏览器刷新后不会触发window的hashchange事件，所以需要手动触发
var changeEvent = new Event('hashchange');
window.dispatchEvent(changeEvent);
},
// 路由跳转
push({path}) {
if (path) {
location.hash = "#" + path;
}
}
}
// 根据路由的改变切换页面显示内容
function changePage(page) {
var contentDom = document.querySelector('.main .content');
if (page === '/' || page === '/student') {
contentDom.innerHTML = 'student module';
} else if (page === '/lesson') {
contentDom.innerHTML = 'lesson module';
} else if (page === '/class') {
contentDom.innerHTML = 'class module';
}
}
window.onload = function () {
// 调用构造函数，实例化路由对象，初始化路由配置
var router = new Route({
routes: [
{ path: "/", component: changePage },
{ path: "/student", component: changePage },
{ path: "/lesson", component: changePage },
{ path: "/class", component: changePage }
]
});
// 为导航注册点击事件切换路由
document.querySelector('.sidebar-ul').addEventListener("click", function (e) {
if (e.target.nodeName == "LI") {
var domClassName = e.target.className;
if (domClassName.indexOf('stuManage') > -1) {
router.push({ path: "/student" })
} else if (domClassName.indexOf('lesManage') > -1) {
router.push({ path: "/lesson" })
} else if (domClassName.indexOf('claManage') > -1) {
router.push({ path: "/class" })
} else {
window.location.href="http://www.baidu.com"
}
}
})
}
</script>
</body>
</html>