封装一个ajaxget请求方法，以备不时之需
2020-12-22 18:27
标签：color func state code case pre else read cat 封装一个ajaxget请求方法，以备不时之需 标签：color func state code case pre else read cat 原文地址：https://www.cnblogs.com/wangkunlong/p/14148129.htmlfunction ajaxGet(url) {
return new Promise((resolve, reject) => {
let xhr = new XMLHttpRequest();
xhr.open("GET",url,true);
xhr.send();
xhr.onreadystatechange = () => {
// console.log(‘xhr.readyState‘, xhr.readyState)
switch (xhr.readyState) {
case 4:
// 请求成功
let responseStr = xhr.response;
let response = null;
try {
response = JSON.parse(responseStr)
} catch(e) {
response = null;
}
// console.log(‘response‘, response)
if(response) {
resolve(response)
}else {
reject(‘无数据‘)
}
break;
default:
break;
}
}
})
}
function getBaseFile() {
ajaxGet(‘url‘).then((res)=>{
console.log(‘res‘, res)
if(res.code == 200) {
}
})
}
getBaseFile()
文章标题：封装一个ajaxget请求方法，以备不时之需
文章链接：http://soscw.com/index.php/essay/37627.html