如果是vue-resource的话,这样写 this.$http.jsonp,完整代码如下:
<!DOCTYPE html>如果是axios,我们自己写了一个axios.jsonp函数
<html>
<head>
<meta charset="UTF-8">
<script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/vue@2.6.1.js"></script>
<script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/vue-resource.min.js"></script>
</head>
<body>
<div id="app">
请输入关键字:<input type="text" v-model="keyword" @keyup="sendJsonP(keyword)">
<ul>
<li v-for="r in result">{{r}}</li>
</ul>
</div>
<script>
window.onload = function () {
new Vue({
el: '#app',
data: {
keyword: '',
result: ''
},
methods: {
sendJsonP(keyword) {
let url = 'https://www.baidu.com/sugrec?pre=1&p=3&ie=utf-8&json=1&prod=pc&from=pc_web';
this.$http.jsonp(url, {
params: {
wd: keyword
},
jsonp: 'cb'//jsonp默认是callback,百度缩写成了cb,所以需要指定下 }
}).then(res => {
if (res.data.g) {
this.result = res.data.g.map(x => x['q']);
} else {
this.result = [];
}
});
}
}
});
}
</script>
</body>
</html>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/vue@2.6.1.js"></script>
<script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/axios-0.18.js"></script>
</head>
<body>
<div id="app">
请输入关键字:<input type="text" v-model="keyword" @keyup="sendJsonP(keyword)">
<ul>
<li v-for="r in result">{{r}}</li>
</ul>
</div>
<script>
window.onload = function () {
axios.jsonp = (url, data)=> {
if (!url)
throw new Error('url is necessary')
const callback = 'CALLBACK' + Math.random().toString().substr(9, 18)
const JSONP = document.createElement('script')
JSONP.setAttribute('type', 'text/javascript')
const headEle = document.getElementsByTagName('head')[0]
let ret = '';
if (data) {
if (typeof data === 'string')
ret = '&' + data;
else if (typeof data === 'object') {
if ('jsonp' in data){
ret += '&' + data.jsonp + '=' + callback;
}else{
ret += '&callback=' + callback;
}
for (let key in data)
ret += '&' + key + '=' + encodeURIComponent(data[key]);
}
ret += '&_time=' + Date.now();
}
JSONP.src = `${url}${ret}`;
// JSONP.src = `${url}?callback=${callback}${ret}`;
return new Promise((resolve, reject) => {
window[callback] = r => {
resolve({data:r})
headEle.removeChild(JSONP)
delete window[callback]
}
headEle.appendChild(JSONP)
})
}
new Vue({
el: '#app',
data: {
keyword: '',
result: ''
},
methods: {
sendJsonP(keyword) {
let url = 'https://www.baidu.com/sugrec?pre=1&p=3&ie=utf-8&json=1&prod=pc&from=pc_web';
axios.jsonp (url, {
wd: keyword
,
jsonp: 'cb'//jsonp默认是callback,百度缩写成了cb,所以需要指定下 }
}).then(res => {
console.log(res);
if (res.data.g) {
this.result = res.data.g.map(x => x['q']);
} else {
this.result = [];
}
});
}
}
});
}
</script>
</body>
</html>
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