<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<script>
jsonp({
url:"http://localhost:8888/index",
data:'',
success:(data)=>{
console.log(data);
}
})
function jsonp(options) {
//随机函数名
let callbackName='itlike'+Math.random().toString().substr(2)
//处理URL的拼接
window[callbackName]=function(data){
options.success(data)
document.body.removeChild(script)
}
options.url=options.url+'?callback='+callbackName
//创建script的标签
let script = document.createElement("script")
script.src=options.url;
document.body.appendChild(script)
}
</script>
<!--<script src="http://localhost:8888/index?callback=getData"></script>-->
</body>
</html>
//服务器 访问
router.get("/index",function（req，resp）{
console.log(req.query);
let data=JSON.stringify({
status_code:200,
result:{
name:"张三",
age:18,
}
})
resp.send(`${req.query.callback}(${data})`)
})
JSONP 跨域访问
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转载自blog.csdn.net/weixin_43453916/article/details/88039891
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