1、vue router 的入门案例
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport"
content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
<style>
</style>
<script src="./lib/vue.js"></script>
<script src="./lib/vue-router.js"></script>
<script>
window.onload = function () {
let rout = new VueRouter({
routes: [
//传参时,注意是$route.params
{
path: '/user/:id', component: {
template: '<div>this is user,id is {{$route.params.id}}</div>',
beforeRouteUpdate(to, from, next) {
console.log('to:', to);
console.log(from);
//如果没有next(),那么就不会往下走
next();
}
}
}
]
}); let VM = new Vue({
el: '#container',
router: rout,
methods: {
forward() {
//前进
this.$router.go(1);
},
backward() {
//后退
this.$router.go(-1);
},
push() {
//跳转
this.$router.push('/user/111');
}
}
})
}
</script>
</head>
<body>
<div id="container">
<input type="button" value="前进" @click="forward">
<input type="button" value="后退" @click="backward">
<input type="button" value="跳转" @click="push"><br/>
<router-link to="/user/111">user111</router-link>
<router-link to="/user/222">user222</router-link>
<router-link to="/user/333">user333</router-link>
<router-view></router-view>
</div>
</body>
</html>
注意：在vuerouter里面用的component未必要在vue里面注册组件，可以独立的存在
2、子路由的使用
a、子路由使用一 => 在路由页面里面定义子路由
<body>
<div id="container">
<router-link to="/">first</router-link>
<router-link to="/second">second</router-link>
<router-view></router-view>
</div>
<template id="first">
<div>
<h1>this is first</h1>
<!--在这个子路由里面用的就是二级路径而不是全路径-->
<router-link to="/">aaa</router-link>
<router-link to="/bbb">bbb</router-link>
<router-view></router-view>
</div>
</template>
<script src="./vue.js"></script>
<script src="./vue-router.js"></script>
<script>
let first = {
template: '#first'
};
let second = {
template: '<div>this is second</div>'
};
let fourth = {
template: '<div>this is fourth</div>'
};
let fifth = {
template: '<div>this is fifth</div>'
};
let routes = [
{
path: '/',
component: first,
children: [ //注意子路由里面children接收的是一个数组，并且里面的子路由不能够带'/'符号
{path:'', component: fourth},
{path: 'bbb', component: fifth}
]
},
{path: '/second', component: second}
];
let router = new VueRouter({
routes
});
let app = new Vue({
el: '#container',
router
});
</script>
export default [
{
path: '/',
name: 'home',
component: Home
},
{
path: '/about',
name: 'about',
component: () => import(/* webpackChunkName: "about" */ '../views/About.vue')
},
{
path: '/check',
component: check,
redirect: '/second',
children: [
{ path: '/first', component: first },
{ path: '/second', component: second }
]
}
]
b、子路由的使用二 => 在路由页面外面定义子路由标签
<body>
<div id="container">
<router-link to="/first">first</router-link>
<router-link to="/first/aaa">aaa</router-link> <!--页面会转到first页面下的aaa标签，注意这里的写法-->
<router-link to="/first/bbb">bbb</router-link> <!--页面会转到first页面下的bbb标签，注意这里的写法-->
<router-link to="/second">second</router-link>
<router-view></router-view>
</div>
<template id="first">
<div>
<h1>this is first</h1>
<router-view></router-view>
</div>
</template>
<script src="./vue.js"></script>
<script src="./vue-router.js"></script>
<script>
let first = {
template: '#first'
};
let second = {
template: '<div>this is second</div>'
};
let fourth = {
template: '<div>this is fourth</div>'
};
let fifth = {
template: '<div>this is fifth</div>'
};
let routes = [
{
path: '/first',
component: first,
children: [ //注意子路由里面children接收的是一个数组，并且里面的子路由不能够带'/'符号
{path:'aaa', component: fourth},
{path: 'bbb', component: fifth}
]
},
{path: '/second', component: second}
];
let router = new VueRouter({
routes
});
let app = new Vue({
el: '#container',
router
});
</script>
</body>
3、路由参数的传递
路由接收参数需要用到$route，注意这里是$route而不是$router;
<body>
<div id="container">
<!-- <router-link to="/first">first</router-link>传参可以用以下的写法-->
<router-link :to="{name: 'aaa', params: {username: 'AAA', id: 123}}">first</router-link>
<!--接收相应的数据用$route.name, $route.params.username或者$route.params.id-->
<router-link to="/second">second</router-link>
<router-view></router-view>
</div>
<script src="./vue.js"></script>
<script src="./vue-router.js"></script>
<script>
let first = {
template: '<div>this is first content--{{$route.params.username}}---{{$route.params.id}} <input type="button" value="btn" @click="check"></div>',
methods: {
check() {
console.group('相应的参数');
console.log(this.$route.params.username, this.$route.params.id); //注意这里的this.$route要和this.$router区分开
console.groupEnd();
}
}
};
let second = {
template: '<div>this is second content</div>'
};
let routes = [
{path: '/first', name: 'aaa', component: first},
{path: '/second', name: 'bbb', component: second}
];
let app = new Vue({
el: '#container',
router: new VueRouter({routes})
});
</script>
</body>
通过url进行传值
<body>
<div id="container">
<router-link to="/first/haha/123">first</router-link>
<router-link to="/second/yes/111">second</router-link>
<router-view></router-view>
</div>
<script src="./vue.js"></script>
<script src="./vue-router.js"></script>
<script>
let first = {
template: '<div>this is first content, str的值为{{$route.params.str}}, id的值为{{$route.params.id}}</div>',
};
let second = {
template: '<div>this is second content</div>'
};
let routes = [
{path: '/first/:str/:id(\\d+)', name: 'aaa', component: first}, //当地址不完全匹配的时候不显示，只有完全匹配的时候会显示 #/first/haha/34
{path: '/second/:str/:id', name: 'bbb', component: second} //如果需要添加正则匹配的时候，可以用(\\d+)或者其他方式进行添加
];
let app = new Vue({
el: '#container',
router: new VueRouter({routes})
});
</script>
</body>
通过组件传值的方式传值
{
path: '/check',
component: check,
// redirect: '/first/yf',
children: [
{ path: '/first/:name', name: 'first', component: first },
{ path: '/second', component: second }
],
// props: true // 方式一 这种情况假如路由下是/check/:name， 那么会自动的把name进行组件传值的
// props: { // 方式二
// name: 'test'
// },
props: route => { // 方式三
return { name: 'check' }
}
}
那么接收和组件的接收方式是一样的， 在路由的view中写如下代码进行接收
export default {
props: {
name: {
type: String,
default: ''
}
},
methods: {
getName () {
console.log(this.name);
}
}
}
路由中还可以定义meta进行传值
4、单页面多路由区域
多个路由区域是指存在多个router-view的时候需要在router-view上声明name
<body>
<div id="container">
<router-link :to="{name: 'aaa'}">first</router-link>
<router-link :to="{name: 'bbb'}">second</router-link>
<router-view></router-view>
<router-view name="part"></router-view> <!--存在多个router-view的时候要指定name-->
<router-view name="block"></router-view>
</div>
<script src="./vue.js"></script>
<script src="./vue-router.js"></script>
<script>
let first = {
template: '<div>this is first content</div>',
};
let second = {
template: '<div>this is second content</div>'
};
let routes = [
{path: '/first', name: 'aaa', components: {
default: first, //指定默认的router-view的组件,即没有声明name的router-view
part: second, //指定名字为part的router-view的组件
block: first //指定名字为block的router-view的组件
}
},
{path: '/second', name: 'bbb', components: {
default: second,
part: first,
block: second
}
}
];
let app = new Vue({
el: '#container',
router: new VueRouter({routes})
});
</script>
</body>
注意，当存在多个router-view的时候，里面的component需要转变为components
5、路由的重定向
正常的重定向，可以在route里面加配redirect这个配置，如果需要动态调用，可以用$router.push(路由)，具体例子如下：
<body>
<div id="container">
<router-link to="/first/haha/123">first</router-link>
<router-link to="/second/yes/111">second</router-link>
<router-view></router-view>
</div>
<script src="./vue.js"></script>
<script src="./vue-router.js"></script>
<script>
let first = {
template: '<div>this is first content, str的值为{{$route.params.str}}, id的值为{{$route.params.id}}</div>',
};
let second = {
template: '<div>this is second content <input type="button" value="btn" @click="check"></div>',
methods: {
check() {
this.$router.push('/first/haha/111', function(router) {
console.log(arguments); //动态的转到某个路由上，可以用push这个方法
});
}
}
};
let routes = [
{path: '/first/:str/:id(\\d+)', name: 'aaa', component: first},
{path: '/second/:str/:id', name: 'bbb', component: second, redirect: '/first/yu/111'}, //如果需要添加正则匹配的时候，可以用(\\d+)或者其他方式进行添加
// {path: '/second/:str/:id', name: 'bbb', component: second, redirect: {name: 'aaa', params: {str: 'get', id: 111}}} //如果需要添加正则匹配的时候，可以用(\\d+)或者其他方式进行添加
];
let app = new Vue({
el: '#container',
router: new VueRouter({routes})
});
</script>
</body>
6、alias 别名的用法
<body>
<div id="container">
<router-link to="/">first</router-link>
<router-link :msg=msg to="/bill">bill</router-link> <!--利用别名进行跳转-->
<router-link :msg=msg to="/haha">second</router-link>
<router-view></router-view>
</div>
<script src="./vue.js"></script>
<script src="./vue-router.js"></script>
<script>
let first = {
template: '<div>this is first content, str的值为{{$route.params.str}}, id的值为{{$route.params.id}}</div>',
};
let second = {
template: '<div>this is second content</div>',
};
let routes = [
{path: '/', name: 'aaa', component: first, alias: '/haha'},
{path: '/second', name: 'bbb', component: second, alias: '/bill'}, //添加别名后，访问/bill可以跳转到/second这个路径下
];
let app = new Vue({
el: '#container',
data: {
msg: 'this is msg'
},
router: new VueRouter({routes})
});
</script>
</body>
7、路由过渡动画
添加路由的过渡动画需要在router-view外层包一层的transition标签，如下例：
<style>
.fade-enter { /*进入过渡的开始状态，元素插入时生效，只应用一帧后立刻删除*/
opacity: 0;
}
.fade-enter-active { /*进入过渡的结束状态，元素插入时生效，在过渡过程完成后删除*/
transition: opacity 0.5s;
}
.fade-leave { /*离开过渡的开始状态，元素被删除时触发，只应用一帧后立刻删除*/
opacity: 1;
}
.fade-leave-active { /*离开过渡的结束状态，元素被删除时生效，离开过渡完成后被删除*/
opacity: 0;
transition: opacity 0.5s
}
</style>
</head>
<body>
<div id="container">
<router-link to="/first">first</router-link>
<router-link to="/second">second</router-link>
<transition name="fade" mode="out-in"> <!--默认的mode是in-out表示进入后，再删除-->
<router-view></router-view>
</transition>
</div>
<script src="./vue.js"></script>
<script src="./vue-router.js"></script>
<script>
let first = {
template: '<div>this is first content</div>',
};
let second = {
template: '<div>this is second content</div>',
};
let routes = [
{path: '/first', name: 'aaa', component: first},
{path: '/second', name: 'bbb', component: second},
];
let app = new Vue({
el: '#container',
data: {
msg: 'this is msg'
},
router: new VueRouter({routes})
});
</script>
</body>
8、history模式与配置404页面
a、在配置路由后，访问路由的时候，在地址栏中会显示#相当符号，那么为了美观，可以选择另外一种显示方式history, router里的模式有hash与history,默认是hash
b、如果访问了未知页面，为了友好的用户体验，可以配置404页面
<body>
<div id="container">
<router-link to="/first">first</router-link>
<router-link to="/second">second</router-link>
<router-view></router-view>
</div>
<script src="./vue.js"></script>
<script src="./vue-router.js"></script>
<script>
let first = {
template: '<div>this is first content</div>',
};
let second = {
template: '<div>this is second content</div>',
};
let error = {
template: '<div>404, 没有找到相关的页面</div>'
};
let routes = [
{path: '/first', name: 'aaa', component: first},
{path: '/second', name: 'bbb', component: second},
{path:'*', component: error} //配置404页面的时候，path为*号
];
let app = new Vue({
el: '#container',
data: {
msg: 'this is msg'
},
router: new VueRouter({mode:'history', routes}) //注意使用history必需要在服务器的环境下进行配置，否则会报错
});
</script>
</body>
9、路由中的钩子函数
有两种方式：一种方式，在component里面进行写beforeRouterEnter, beforeRouterLeave, 第二种方式， 在route里面定义相当的方法 beforeEnter,例子如下：
<body>
<div id="container">
<router-link to="/first">first</router-link>
<router-link to="/second">second</router-link>
<router-view></router-view>
</div>
<script src="./vue.js"></script>
<script src="./vue-router.js"></script>
<script>
let first = {
template: '<div>this is first content</div>',
};
let second = {
template: '<div>{{msg}}</div>',
data: function() {
return {
'msg': 'this is second content'
}
},
//方法一， 写在component里面可以触发相应的钩子
beforeRouteEnter(to, from, next){
console.log('beforeRouteEnter', arguments);
next()
},
beforeRouteLeave(to, from ,next) {
console.log('beforeRouteLeave', arguments);
next()
}
};
//方法二：在router里面写钩子
let routes = [
{
path: '/first', name: 'aaa', component: first, beforeEnter(to, from, next) {
//to表示来的路由，from表示目标路由，next表示执行跳转的函数
next(); //next表示执行跳转的动作，next里面接收一个参数，如果是true表示执行跳转，如果是false则表示不跳转
}
},
{path: '/second', name: 'bbb', component: second},
];
let app = new Vue({
el: '#container',
data: {
msg: 'this is msg'
},
router: new VueRouter({mode: 'hash', routes}) //注意使用history必需要在服务器的环境下进行配置，否则会报错
});
</script>
</body>
beforeEach可以做登录页面的跳转 router.beforeEach() => {}, next()的括号里可以传boolean 也可以传string, 也可以传route对象实例，如{ name: 'home' } 等
let router = new VueRouter({ routes });
router.beforeEach((to, from, next) => {
if (to.name === 'about') {
next({ name: 'home' })
} else {
next();
}
})
export default router;
10、编程式导航
<body>
<div id="container">
<div>
<input type="button" value="前进" @click="forward">
<input type="button" value="后退" @click="back">
<input type="button" value="向后跳2" @click="skip">
<input type="button" value="回首页" @click="gohome">
</div>
<router-link to="/first">first</router-link>
<router-link to="/second">second</router-link>
<router-view></router-view>
</div>
<script src="./vue.js"></script>
<script src="./vue-router.js"></script>
<script>
let first = {
template: '<div>this is first content</div>',
};
let second = {
template: '<div>this is second content</div>',
};
let routes = [
{path: '/first', name: 'aaa', component: first},
{path: '/second', name: 'bbb', component: second},
];
let app = new Vue({
el: '#container',
data: {
msg: 'this is msg'
},
methods: {
forward() {
this.$router.forward(); //向前跳转
},
back() {
this.$router.back(); //向后跳转
},
skip() {
this.$router.go(-2); //跳转指定步数
},
gohome() {
//push的两种写法
// this.$router.push('/first').then(() => console.log('完成跳转')).catch(() => console.log('跳转失败')); //如果是replace的话，那么就不会生成记录
this.$router.push({name: 'aaa'}, ()=> console.log('ok'), ()=> console.log('no')); }
},
router: new VueRouter({mode: 'hash', routes})
});
</script>
</body>
11、如何配置页面刷新
配置redirect的路由
{
path: '/redirect',
component: Layout, //如有外层框架
hidden: true,
children: [
{
path: '/redirect/:path*',
component: () => import('@/views/redirect/index')
}
]
}
redirect组件内容
<script>
export default {
created () {
const { params, query } = this.$route
const { path } = params
this.$router.replace({ path: '/' + path, query })
},
render: h => h() //阻止警示信息
}
</script>
跳转：
this.$router.replace({
path: '/redirect' + fullPath
})
注意：在router-view外围需要配置keep-alive如下
<transition name="fade-transform" mode="out-in">
<keep-alive :include="cachedViews">
<router-view :key="key"></router-view>
</keep-alive>
</transition>
注意： keep-alive中有两个参数，include: 字符串或正则表达式。只有匹配的组件会被缓存。exclude: 字符串或正则表达式。任何匹配的组件都不会被缓存。
exclude优先级大于include，例子中的cachedViews的类型是Array<string>
<keep-alive include="test-keep-alive">
<!-- 将缓存name为test-keep-alive的组件 -->
<component></component>
</keep-alive> <keep-alive include="a,b">
<!-- 将缓存name为a或者b的组件，结合动态组件使用 -->
<component :is="view"></component>
</keep-alive> <!-- 使用正则表达式，需使用v-bind -->
<keep-alive :include="/a|b/">
<component :is="view"></component>
</keep-alive> <!-- 动态判断 -->
<keep-alive :include="includedComponents">
<router-view></router-view>
</keep-alive> <keep-alive exclude="test-keep-alive">
<!-- 将不缓存name为test-keep-alive的组件 -->
<component></component>
</keep-alive>
include 和 exclude 属性允许组件有条件地缓存。二者都可以用逗号分隔字符串、正则表达式或一个数组来表示：匹配首先检查组件自身的 name 选项，如果 name 选项不可用，则匹配它的局部注册名称 (父组件 components 选项的键值)。匿名组件不能被匹配。
也就相当于先匹配components里的name名字，所以取名的时候尽量与与过滤的一致
