AJAX 개발 에 편리 한 유 니 버 설 클래스
6716 단어 AJAX 개발 에 편리 한 유 니 버 설 클래스
/*------------------------------------------
Author: xujiwei
Website: http://www.xujiwei.cn
E-mail: [email protected]
Copyright (c) 2006, All Rights Reserved
------------------------------------------*/
function AJAXRequest() {
var xmlObj = false;
var CBfunc,ObjSelf;
ObjSelf=this;
try { xmlObj=new XMLHttpRequest; }
catch(e) {
try { xmlObj=new ActiveXObject("MSXML2.XMLHTTP"); }
catch(e2) {
try { xmlObj=new ActiveXObject("Microsoft.XMLHTTP"); }
catch(e3) { xmlObj=false; }
}
}
if (!xmlObj) return false;
if(arguments[0]) this.url=arguments[0]; else this.url="";
if(arguments[1]) this.callback=arguments[1]; else this.callback=function(obj){return};
if(arguments[2]) this.content=arguments[2]; else this.content="";
if(arguments[3]) this.method=arguments[3]; else this.method="POST";
if(arguments[4]) this.async=arguments[4]; else this.async=true;
this.send=function() {
var purl,pcbf,pc,pm,pa;
if(arguments[0]) purl=arguments[0]; else purl=this.url;
if(arguments[1]) pc=arguments[1]; else pc=this.content;
if(arguments[2]) pcbf=arguments[2]; else pcbf=this.callback;
if(arguments[3]) pm=arguments[3]; else pm=this.method;
if(arguments[4]) pa=arguments[4]; else pa=this.async;
if(!pm||!purl||!pa) return false;
xmlObj.open (pm, purl, pa);
if(pm=="POST") xmlObj.setRequestHeader("Content-Type","application/x-www-form-urlencoded");
xmlObj.onreadystatechange=function() {
if(xmlObj.readyState==4) {
if(xmlObj.status==200) {
pcbf(xmlObj);
}
else {
pcbf(null);
}
}
}
if(pm=="POST")
xmlObj.send(pc);
else
xmlObj.send("");
}
this.get=function() {
var purl,pcbf;
if(arguments[0]) purl=arguments[0]; else purl=this.url;
if(arguments[1]) pcbf=arguments[1]; else pcbf=this.callback;
if(!purl&&!pcbf) return false;
this.send(purl,"",pcbf,"GET",true);
}
this.post=function() {
var fo,pcbf,purl,pc,pm;
if(arguments[0]) fo=arguments[0]; else return false;
if(arguments[1]) pcbf=arguments[1]; else pcbf=this.callback;
if(arguments[2])
purl=arguments[2];
else if(fo.action)
purl=fo.action;
else
purl=this.url;
if(arguments[3])
pm=arguments[3];
else if(fo.method)
pm=fo.method.toLowerCase();
else
pm="post";
if(!pcbf&&!purl) return false;
pc=this.formToStr(fo);
if(!pc) return false;
if(pm) {
if(pm=="post")
this.send(purl,pc,pcbf,"POST",true);
else
if(purl.indexOf("?")>0)
this.send(purl+"&"+pc,"",pcbf,"GET",true);
else
this.send(purl+"?"+pc,"",pcbf,"GET",true);
}
else
this.send(purl,pc,pcbf,"POST",true);
}
// formToStr
// from SurfChen <[email protected]>
// @url http://www.surfchen.org/
// @license http://www.gnu.org/licenses/gpl.html GPL
// modified by xujiwei
// @url http://www.xujiwei.cn/
this.formToStr=function(fc) {
var i,query_string="",and="";
for(i=0;i<fc.length;i++) {
e=fc[i];
if (e.name!='') {
if (e.type=='select-one') {
element_value=e.options[e.selectedIndex].value;
}
else if (e.type=='checkbox' || e.type=='radio') {
if (e.checked==false) {
continue;
}
element_value=e.value;
}
else {
element_value=e.value;
}
element_value=encodeURIComponent(element_value);
query_string+=and+e.name+'='+element_value;
and="&";
}
}
return query_string;
}
}