Time: 2024-07-21 Sunday 14:49:01
Author: Jackasher
JSONP跨域完成获取信息
服务器端返回函数信息
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| app.get("/jsonp",(req,res) => {
res.type("application/javascript")
res.send("addTestOfDiv()")
})
|
动态创建script获取数据返回,执行回调函数
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| <html>
<head>
<script src="typejavascript.js"></script>
</head>
<body>
<input type="text">
<button id="button">发送jsonp请求</button>
<div id="div"></div>
<script>
function addTestOfDiv(){
const div = document.getElementById("div")
div.innerText = "Hi Jsonp"
}
const button = document.getElementById("button")
button.onclick = function(){
const script = document.createElement('script')
console.log("点击了!!!");
script.src = "http://127.0.0.1:3000/jsonp"
document.body.append(script)
}
</script>
</body>
</html>
|