vue中的交互（ajax，jsonp）
vue中也存在像ajax和jsonp的數(shù)據(jù)交互，實現(xiàn)向服務(wù)器獲取數(shù)據(jù)，但是他本身框架當中沒有這樣的方法，需要一個新的小東西叫vue-resouce.js 地址：https://github.com/pagekit/vue-resource/blob/master/README.md
<meta charset="UTF-8">
<title>Document</title>
<script type="text/javascript" src="vue.js"></script>
<script type="text/javascript" src="vue-resource.js"></script>
<style type="text/css">
</style>
</head>
<body>
<div id="app">
<button @click="get()">按鈕</button>
</div>
<script type="text/javascript">
var vm=new Vue({
el:'#app',
data:{
},
methods:{
get:function(){
this.$http.get('a.txt').then(function(res){
alert(res.data);
},function(res){
alert(res.data);
});
}
}
});
</script>
</body>```
$http 就類似于ajax 他可以this.$http.get this.$http.post還有一種就是jsonp完成跨域取數(shù)據(jù)
```<body>
<div id="app">
<button @click="get()">按鈕</button>
</div>
<script type="text/javascript">
var vm=new Vue({
el:'#app',
data:{
},
methods:{
get:function(){
this.$http.jsonp('https://sug.so.#/suggest'{word:'b'}).then(function(res){
alert(res.data.s);
},function(res){
alert(res.status);
});
}
}
});
</script>
</body>
跨域取數(shù)據(jù)百度下拉例子:
<meta charset="UTF-8">
<title>Document</title>
<script type="text/javascript" src="vue.js"></script>
<script type="text/javascript" src="vue-resource.js"></script>
<style type="text/css">
*{ margin:0; padding: 0;}
.bg{width: 200px; line-height:30px;}
</style>
</head>
<body>
<div id="app">
<input type="text" v-model="t" @keyup="get($event)" @keydown.down="changeDown()" @keyup.up.prevent="changeUp()"/>
<ul>
<li v-for="val in arr" class="bg">
{{val}}
</li>
</ul>
<p v-show="arr.length==0">暫無數(shù)據(jù)</p>
</div>
<script type="text/javascript">
var vm=new Vue({
el:'#app',
data:{
arr:[],
t:'',
iNow:-1
},
methods:{
get:function(ev){
if(ev.keyCode==38||ev.keyCode==40){
return;
}
if(ev.keyCode==13){
window.open('https://www.baidu.com/s?wd='+this.t);
this.t=''
}
this.$http.jsonp('https://sp0.baidu.com/5a1Fazu8AA54nxGko9WTAnF6hhy/su',{wd:this.t},{jsonp:'cb'}).then(function(res){
this.arr=res.data.s
},function(res){
alert('失敗');
});
},
changeDown:function(){
this.iNow++;
if(this.iNow==this.arr.length)iNow=-1;
this.t=this.arr[this.iNow];
},
changeUp:function(){
this.iNow--;
if(this.iNow==-2)this.iNow=this.arr.length-1
this.t=this.arr[this.iNow];
}
}
});
</script>
</body>```