/** * @function ajax request * @fields ajaxName:请求名称，method：请求方法，url：接口地址，async：是否异步请求，withCredentials：是否支持跨域发送cookie，params：post请求参数 * @param data:{"ajaxName":"ajaxNameString","method":"GET/POST","url":"","async":true/false,"withCredentials":true/false,"params":{}} * @result ajaxName.responseText */function ajaxRequest(data, callback) { ???var ajax = data.ajaxName; ???// 新建请求 ???ajax = new XMLHttpRequest(); ???// 打开请求 ???ajax.open(data.method, data.url, data.async); ???// 是否支持跨域发送cookie ???ajax.withCredentials = data.withCredentials; ???// 如果是POST请求则设置Header ???if (data.method == ‘POST‘) { ???????ajax.setRequestHeader("Content-type", "application/x-www-form-urlencoded"); ???} ???// 发送请求 ???ajax.send(data.params ? data.params : ‘‘); ???// 注册事件 ???ajax.onreadystatechange = function () { ???????callback(ajax); ???}}调用方法：ajaxRequest({ ???"ajaxName": ajaxName, ???"method": "POST", ???"url": "http://xxx.xxx.xxx/", ???"async": true, ???"withCredentials": true, ???"params": params}, function callback(ajax) { ???console.log(ajax.responseText);})原生ajax方法封装
原文地址：https://www.cnblogs.com/Man-Dream-Necessary/p/8659463.html