Ajax

一、什么是Ajax


html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>原生Ajaxtitle>
head>
<body>
    
    <input type="button" value="获取数据" onclick="getData()">
 
    <div id="div1">div>
    
body>
<script>
    function getData(){
        //1. 创建XMLHttpRequest 
        var xmlHttpRequest  = new XMLHttpRequest();
        
        //2. 发送异步请求
        xmlHttpRequest.open('GET','http://yapi.smart-xwork.cn/mock/169327/emp/list');
        xmlHttpRequest.send();//发送请求
        
        //3. 获取服务响应数据
        xmlHttpRequest.onreadystatechange = function(){
            if(xmlHttpRequest.readyState == 4 && xmlHttpRequest.status == 200){
                document.getElementById('div1').innerHTML = xmlHttpRequest.responseText;
            }
        }
    }
script>
html>

二、Axios


html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Ajax-Axiostitle>
    <script src="js/axios-0.18.0.js">script>
head>
<body>
    
    <input type="button" value="获取数据GET" onclick="get()">
 
    <input type="button" value="删除数据POST" onclick="post()">
 
body>
<script>
    function get(){
        //通过axios发送异步请求-get
        // axios({
        //     method: "get",
        //     url: "http://yapi.smart-xwork.cn/mock/169327/emp/list"
        // }).then(result => {
        //     console.log(result.data);
        // })
 
 
        axios.get("http://yapi.smart-xwork.cn/mock/169327/emp/list").then(result => {
            console.log(result.data);
        })
    }
 
    function post(){
        //通过axios发送异步请求-post
        // axios({
        //     method: "post",
        //     url: "http://yapi.smart-xwork.cn/mock/169327/emp/deleteById",
        //     data: "id=1"
        // }).then(result => {
        //     console.log(result.data);
        // })
 
        axios.post("http://yapi.smart-xwork.cn/mock/169327/emp/deleteById","id=1").then(result => {
            console.log(result.data);
        })
    }
script>
html>

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原文地址：https://blog.csdn.net/m0_64703222/article/details/133352221