做网站中或者经常使用到ajax，尽管当前网上有许多ajax框架，其功能的确能强大，但其中日常使用的却不多，为了精简省略的目的，参考diszuz的ajax.js代码，总结出一个简单的ajax的类
- /*
- ajax类
- */
- function ajax(url,pars,fun)
- {
- var aj=new Object();
- aj.url=url;
- aj.pars=pars;
- aj.resultHandle=fun;
- aj.createXMLHttpRequest=function (){
- var request=false;
- if(window.XMLHttpRequest){
- request=new XMLHttpRequest();
- if(request.overrideMimeType){
- request.overrideMimeType('text/xml');
- }
- }else if(window.ActiveXObject){
- var versions=['Microsoft.XMLHTTP','MSXML.XMLHTTP','Microsoft.XMLHTTP','Msxml2.XMLHTTP.7.0','Msxml2.XMLHTTP.6.0','Msxml2.XMLHTTP.5.0','Msxml2.XMLHTTP.4.0','MSXML2.XMLHTTP.3.0','MSXML2.XMLHTTP'];
- for(var i=0;i<versions.length;i++){
- try{
- request=new ActiveXObject(versions[i]);
- if(request){
- return request;
- }
- }catch(e){
- }
- }
- }
- return request;
- }
- aj.XMLHttpRequest=aj.createXMLHttpRequest();
- aj.processHandle=function (){
- if(aj.XMLHttpRequest.readyState==4&&aj.XMLHttpRequest.status==200){
- aj.resultHandle(aj.XMLHttpRequest);
- }
- }
- aj.get=function (){
- aj.XMLHttpRequest.onreadystatechange=aj.processHandle;
- aj.XMLHttpRequest.open("GET",aj.url+"?"+aj.pars);
- aj.XMLHttpRequest.send(null);
- }
- aj.post=function (){
- aj.XMLHttpRequest.onreadystatechange=aj.processHandle;
- aj.XMLHttpRequest.open('POST',aj.url,true);
- aj.XMLHttpRequest.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
- aj.XMLHttpRequest.send(aj.pars);
- }
- return aj;
- }
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