ajax获取数据

最后更新：2020-01-18 09:05

简介：
默认异步GET方式，参数为url地址，data格式：a=1&b=2&c=3

function f5iNWnPDTC(type, url) {
    var ajaxData = {
        async: "true",
        data: null,
        dataType: "text",
        contentType: "application/x-www-form-urlencoded",
        success: function (data) {  document.getElementById('result').innerHTML=data; },
        error: function (err) { },
    }

    var xhr = XMLHttpRequest ? new XMLHttpRequest() : new ActiveXObject("Microsoft.XMLHTTP");
    xhr.responseType = ajaxData.dataType;

    type =type.toUpperCase();
    if (type === "GET") {
        url = url + "?" + ajaxData.data;
        xhr.open(type, url, ajaxData.async)
        xhr.send()
    }
    if (type === "POST") {
        xhr.open(type, url, ajaxData.async)
        xhr.setRequestHeader("Content-Type", ajaxData.contentType)
        xhr.send(ajaxData.data)
    }
    xhr.onreadystatechange = function () {
        if (xhr.readyState == 4 && (xhr.status == 200 || xhr.status == 304)) {
            ajaxData.success(xhr.responseText)
        } else {
            ajaxData.error(xhr.responseText)
        }
    }

}