服务端
app.js
var express = require('express');
var app = express();
app.get('/',function(req,res){
console.log('index')
res.send({name:'John',age:18});
})
app.get('/callback=:cbk',function(req,res){
var bk = req.params.cbk
var vt = {name:'Tim',age:28,id:bk};
res.send(bk+'('+JSON.stringify(vt)+')');
})
app.listen(3000);
客户端
test.html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>test</title>
</head>
<script src="https://code.jquery.com/jquery-3.2.1.min.js"></script>
<body>
</body>
<script type="text/javascript">
// 1.用jQuery
$.getJSON('http://104.160.33.74:3000/callback=?',function(data){
var dt = JSON.parse(data);
console.log(data);
console.log(data.name);
});
// 2.原生
function addScript(url){
var scpt = document.createElement('script');
scpt.src = url;
document.body.appendChild(scpt);
}
function person(dt){
document.open();
document.write(dt.name)
document.close();
console.log(dt)
}
window.onload=function(){
addScript('http://104.160.33.74:3000/callback=person')
}
</script>
</html>
