学习-【前端】-ajax封装

    平时我们多用ajax请求数据，这里给一个封装让大家参考下

function ajax(data, callback) {      var defaultconifg = {           "url": weburl,           "contentType": "charset=UTF-8",           "dataType": "json",           "timeout": "400000",           "beforeSend": loadAnimationOn,           "type": "post"      };      var succhandler = {           "success": function(mess) {                loadAnimationOff();                if (mess.resCode != 0) {                     alertInfo(mess.resMsg, '失败')                } else {                     callback(mess);                }           }      }      var postdata = $.extend(defaultconifg, data, succhandler);      $.ajax(postdata); }