路由参数
<!DOCTYPE html>
<html lang="en">
<head>
<title></title>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<script src="./vue.js"></script>
<script src="./vue-router.js"></script>
<style>
ul {
display: flex;
}
li {
list-style-type: none;
padding: 0 20px;
}
</style>
</head>
<body>
<div id="app">
<ul>
<li><router-link to="/home">首页</router-link></li>
<li><router-link to="/product/one">蔬菜</router-link></li>
<li><router-link to="/product/tow">水果</router-link></li>
<li><router-link to="/product/33">肉类</router-link></li>
</ul>
<router-view></router-view>
</div>
<script>
let myhome = Vue.component('home', {
template: '<div>这是首页</div>'
})
let myproduct = Vue.component('product', {
template: `
<div>
<p>商品分类,该分类的编号是{{$route.params.cid}}</p>
</div>
`,
mounted () {
console.log(this.$route.params.cid);
}
})
let router = new VueRouter({
routes: [
{name: 'index', path: '/home', component: myhome},
{name: 'productCate', path: '/product/:cid', component: myproduct}
]
})
var vm = new Vue({
el: '#app',
router,
data: {
}
})
</script>
</body>
</html>
监听路由
<!DOCTYPE html>
<html lang="en">
<head>
<title></title>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<script src="./vue.js"></script>
<script src="./vue-router.js"></script>
<script src="./axios.js"></script>
<style>
.myul {
display: flex;
}
.navitem {
list-style-type: none;
padding: 0 20px;
}
</style>
</head>
<body>
<div id="app">
<ul class="myul">
<li class="navitem"><router-link to="/home">首页</router-link></li>
<li class="navitem"><router-link to="/product/11">蔬菜</router-link></li>
<li class="navitem"><router-link to="/product/22">水果</router-link></li>
<li class="navitem"><router-link to="/product/33">肉类</router-link></li>
</ul>
<router-view></router-view>
</div>
<script>
let myhome = Vue.component('home', {
template: '<div>这是首页</div>'
})
let myproduct = Vue.component('product', {
template: `
<div>
<p>这是商品分类,该分类的编号是{{$route.params.cid}}</p>
<ul>
<li v-for="(item, index) in products" :key="index">{{item}}</li>
</ul>
</div>
`,
data () {
return {
products: []
}
},
watch: {
'$route': {
handler(to, from) {
let cid = to.params.cid
console.log(cid);
axios.get(`http://192.168.75.84:3000/list/${cid}`)
.then(res => {
this.products = res.data.products
})
},
immediate: true
}
}
})
let router = new VueRouter({
routes: [
{name: 'index', path: '/home', component: myhome},
{name: 'productCate', path: '/product/:cid', component: myproduct}
]
})
var vm = new Vue({
el: '#app',
router,
data: {
}
})
</script>
</body>
</html>