一、 路由
Vue.js 路由允许我们通过不同的 URL 访问不同的内容。
通过 Vue.js 可以实现多视图的单页Web应用(single page web application,SPA)。
Vue.js 路由需要载入 vue-router 库
下载:
用git 直接下载
npm install vue
npm install vue-router
简单例子:
HTML:
<div id="app">
<!-- 1\. -->
<router-link to='/index'>首页</router-link>
<router-link to='/detail'>详情页</router-link>
<!-- 盛放导航对应内容-->
<router-view></router-view>
</div>
js 部分:
<script src="js/vue.js"></script>
<script src="js/vue-router.js"></script>
<script>
// 2.创建组件
var Index={
template:`
<h1>这是首页</h1>
`
}
var Detail={
template:`
<h1>这是详情页</h1>
`
}
// 3.配置路由
const routes=[
{path:'/',component:Index},
{path:'/index',component:Index},
{path:'/detail',component:Detail}
]
// 4\. 创建一个路由实例
const router=new VueRouter({
routes:routes,
linkActiveClass:"active"
})
// 5.把路由实例挂在到vue实例上
new Vue({
el:"#app",
router:router
})
</script>
效果图:
二、 路由的嵌套
HTML:
<div id='app'>
<router-link to='/home'>首页</router-link>
<router-link to='/user'>用户页</router-link>
<!-- 盛放导航对应内容-->
<router-view></router-view>
</div>
js 部分:
<script src='js/vue.js'></script>
<script src='js/vue-router.js'></script>
<script>
//2.创建组件
var Home={
template:`
<h1>这是首页</h1>
`
}
var User={
template:`
<div>
<h1>这是用户页</h1>
<ul>
<li>
<router-link to='/user/regist'>注册</router-link>
</li>
<li>
<router-link to='/user/login'>登录</router-link>
</li>
</ul>
<router-view></router-view>
</div>
`
}
var Regist={
template:`
<h3>这是注册页</h3>
`
}
var Login={
template:`
<h3>这是登录页</h3>
`
}
//3.配置路由
const routes=[
{path:'/',component:Home},
{path:'/home',component:Home},
{
path:'/user',
component:User,
children:[
{path:'regist',component:Regist},
{path:'login',component:Login}
]
}
]
//4.创建路由实例
const router=new VueRouter({
routes:routes
})
//5.
new Vue({
el:'#app',
router:router//注册路由
})
效果图:
三、路由的传参
html:
<div id='app'>
<router-link to='/home'>首页</router-link>
<router-link to='/user'>用户页</router-link>
<router-view></router-view>
</div>
js部分:
<script src='js/vue.js'></script>
<script src='js/vue-router.js'></script>
<script>
//2.创建组件
var Home={
template:`
<h1>这是首页</h1>
`
}
var User={
template:`
<div>
<h1>这是用户页</h1>
<ul>
<li>
<router-link to='/user/regist?uname=jack&&upwd=123'>注册</router-link>
</li>
<li>
<router-link to='/user/login/rose/456'>登录</router-link>
</li>
</ul>
<router-view></router-view>
</div>
`
}
var Regist={
template:`
<div>
<h3>这是注册页</h3>
<a href='#'>{{$route.query}}</a>
<ul>
<li>{{$route.query.uname}}</li>
<li>{{$route.query.upwd}}</li>
</ul>
</div>
`
}
var Login={
template:`
<div>
<h3>这是登录页</h3>
<a href="">{{$route.params}}</a>
<ul>
<li>{{$route.params.userName}}</li>
<li>{{$route.params.password}}</li>
</ul>
</div>
`
}
//3.配置路由
const routes=[
{path:'/',component:Home},
{path:'/home',component:Home},
{
path:'/user',
component:User,
children:[
{path:'regist',component:Regist},
{path:'login/:userName/:password',component:Login}
]
}
]
//4.创建路由实例
const router=new VueRouter({
routes:routes
})
//5.
new Vue({
el:'#app',
router:router//注册路由
})
</script>
效果图:
四、vue中的axios
vue中的ajax 插件
下载axios:
npm install axios
安装http-server
npm install http-server -g
使用http-server 开启一个服务器
例子:
html:
<a href=""></a>
<div class="app">
<router-link to="/index">首页</router-link>
<router-link to="/detail">详情页</router-link>
<!-- 盛放导航对应的内容-->
<router-view></router-view>
</div>
js部分:
<script src="js/vue.js"></script>
<script src="js/vue-router.js"></script>
<script src="js/axios.js"></script>
<script>
// 2\. 创建组件
var Index={
template:`
<h1>这是首页</h1>
`
}
var Detail={
template:`
<div>
<h1>我是详情页</h1>
<table border=1 cellspacing=0>
<thead>
<tr>
<td>编号</td>
<td>品名</td>
<td>单价</td>
<td>数量</td>
<td>小计</td>
</tr>
</thead>
<tbody>
<tr v-for="value in fruList">
<td>{{value.num}}</td>
<td>{{value.pname}}</td>
<td>{{value.price}}</td>
<td>{{value.count}}</td>
<td>{{value.sub}}</td>
</tr>
</tbody>
</table>
</div>
`,
data:function(){
return{
fruList:null
}
},
mounted:function(){
var self=this;
axios({
method:'get',
url:'fruit.json'
}).then(function(resp){
console.log(resp.data)
self.fruList=resp.data
}).catch(function(err){
console.log(err)
})
}
}
// 3.配置路由
const routes=[
{path:'/',component:Index},
{path:'/index',component:Index},
{path:'/detail',component:Detail}
]
// 4.创建一个路由实例
const router=new VueRouter({
routes:routes,
linkActiveClass:"active"
})
// 5\. 把路由实例挂在到vue实例上
new Vue({
el:'.app',
router:router
})
</script>
json部分:
[
{
"num":1,
"pname":"apple",
"price":3,
"count":4,
"sub":12
},
{
"num":2,
"pname":"pear",
"price":4,
"count":5,
"sub":20
},
{
"num":3,
"pname":"orange",
"price":5,
"count":6,
"sub":30
}