axios-AJAX
axios([ʌk’sæ əs]):前端最热门的Ajax库,vue和react推荐的ajax请求包
1 打开https://github.com/axios/axios
2 Using jsDelivr CDN:
<script src="https://cdn.jsdelivr.net/npm/axios/dist/axios.min.js"></script>
直接使用CDN引用文件
这个是国外的cdn，所以访问起来有点慢，可以用bootcdn里面https://www.bootcdn.cn/
<script src="https://cdn.bootcdn.net/ajax/libs/axios/0.27.2/axios.js"></script>
eg. axios.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>axios 发送 AJAX请求</title>
<script crossorigin="anonymous" src="https://cdn.bootcdn.net/ajax/libs/axios/0.19.2/axios.js"></script>
</head>
<body>
<button>GET</button>
<button>POST</button>
<button>AJAX</button>
<script>
// https://github.com/axios/axios
const btns = document.querySelectorAll('button');
//配置 baseURL
axios.defaults.baseURL = 'http://127.0.0.1:8000';
btns[0].onclick = function () {
//GET 请求
axios.get('/axios-server', {
//url 参数
params: {
id: 100,
vip: 7
},
//请求头信息
headers: {
name: 'atguigu',
age: 20
}
}).then(value => {
console.log(value);
});
}
btns[1].onclick = function () {
axios.post('/axios-server', {
username: 'admin',
password: 'admin'
}, {
//url
params: {
id: 200,
vip: 9
},
//请求头参数
headers: {
height: 180,
weight: 180,
}
});
}
btns[2].onclick = function(){
axios({
//请求方法
method : 'POST',
//url
url: '/axios-server',
//url参数
params: {
vip:10,
level:30
},
//头信息
headers: {
a:100,
b:200
},
//请求体参数
data: {
username: 'admin',
password: 'admin'
}
}).then(response=>{
//响应状态码
console.log(response.status);
//响应状态字符串
console.log(response.statusText);
//响应头信息
console.log(response.headers);
//响应体
console.log(response.data);
})
}
</script>
</body>
</html>
server.js部分
// axios 服务
app.all('/axios-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','*');
const data = {name: '尚硅谷'};
// response.send('Hello jQuery AJAX');
response.send(JSON.stringify(data));
});
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