function ajax() {
var ajaxData = {
type: arguments[0].type || "GET",
url: arguments[0].url || "",
async: arguments[0].async || "true",
data: arguments[0].data || null,
dataType: arguments[0].dataType || "text",
contentType: arguments[0].contentType || "application/x-www-form-urlencoded",
beforeSend: arguments[0].beforeSend || function () { },
success: arguments[0].success || function () { },
error: arguments[0].error || function () { }
}
ajaxData.beforeSend()
var xhr = createxmlHttpRequest();
xhr.responseType = ajaxData.dataType;
xhr.open(ajaxData.type, ajaxData.url, ajaxData.async);
xhr.setRequestHeader("Content-Type", ajaxData.contentType);
xhr.send(convertData(ajaxData.data));
xhr.onreadystatechange = function () {
if (xhr.readyState == 4) {
if (xhr.status == 200) {
ajaxData.success(xhr.response)
} else {
ajaxData.error()
}
}
}
}
?function createxmlHttpRequest() {
???if (window.ActiveXObject) {
?????return new ActiveXObject("Microsoft.XMLHTTP");
???} else if (window.XMLHttpRequest) {
?????return new XMLHttpRequest();
???}
?}
?function convertData(data) {
???if (typeof data === ‘object‘) {
?????var convertResult = "";
?????for (var c in data) {
???????convertResult += c + "=" + data[c] + "&";
?????}
?????convertResult = convertResult.substring(0, convertResult.length - 1)
?????return convertResult;
???} else {
?????return data;
???}
?}
?ajax({
???type: "POST",
???url: "https://rrc.1001.sh/index.php?r=Hotcity&m=Citys",
???dataType: "json",
???data: {},
???beforeSend: function () {
???},
???success: function (msg) {
?????console.log(msg,‘成功的数据‘)
???},
???error: function () {
?????console.log("error")
???}
?})
原生ajax
原文地址：http://www.cnblogs.com/liubingboke/p/7560419.html