使用fetch函数发送AJAX请求
案例
点击按钮发送AJAX请求
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>fetch 发送 AJAX请求</title>
</head>
<body>
<button>AJAX请求</button>
<script>
//文档地址
//https://developer.mozilla.org/zh-CN/docs/Web/API/WindowOrWorkerGlobalScope/fetch
const btn = document.querySelector('button');
btn.onclick = function(){
fetch('http://127.0.0.1:8000/fetch-server?vip=10', {
//请求方法
method: 'POST',
//请求头
headers: {
name:'atguigu'
},
//请求体
body: 'username=admin&password=admin'
}).then(response => {
// return response.text();
return response.json();
}).then(response=>{
console.log(response);
});
}
</script>
</body>
</html>
sever.js
//fetch 服务
app.all('/fetch-server', (request, response) => {
//设置响应头 设置允许跨域
response.setHeader('Access-Control-Allow-Origin', '*');
response.setHeader('Access-Control-Allow-Headers', '*');
// response.send('Hello jQuery AJAX');
const data = {name:'尚硅谷'};
response.send(JSON.stringify(data));
});
