AJAX如何实现简历系统
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代码如下:
/**********************************************
* @function javascript client ajax dealwith
**********************************************
* Function: Create a httpRequest object
**********************************************/
function HttpRequest(){
this._httpRequest=null; //HttpRequest request object
this._callBack=null; //Call back function
this._domResult=true; //Result if dom object or text string
this._requestData=null; //Request data
this._requestResult=null; //HttpRequest result
this._stateString=null; //Current request state string
this._error=false; //Current if have error
this._callBackPara=null; //Current callback function parama
//internal method for get HttpRequestObject
this.init=function(){
//Judge if Not IE
if(window.XMLHttpRequest){
this._httpRequest=new XMLHttpRequest();
//Set request mime is text/xml
if(this._httpRequest.overrideMimeType){
this._httpRequest.overrideMimeType('text/xml');
}
}else if(window.ActiveXObject){
try{
this._httpRequest=new ActiveXObject("Msxml2.XMLHTTP");
}catch(ex){
try{
this._httpRequest=new ActiveXObject("Microsoft.XMLHTTP");
}catch(ex){
this._setMessage(ex,true);
return;
}
}
// this._httpRequest.setrequestheader("Content-Type","text/xml;charset=gb2312");
}
//Judge HttpRequest object create successful
if(!this._httpRequest){
this._setMessage("XMLHttpRequest 对象创建失败！请重试......",true);
return;
}
}
/*
* Function: Set the request header
* namePar:request's header name
* valuePar:request's header value
*/
this.doSetRequestHeader=function(namePar,valuePar){
if(this._error){
return;
}
this._httpRequest.setRequestHeader(namePar,valuePar);
}
/*
* Function: Set the request data
* dataPar:request's send data;
*/
this.doSetRequestData=function(dataPar){
if(this._error){
return;
}
this._requestData=dataPar;
}
/*
*Function get RequestHttp Object
*/
this._getRequestObj=function(){
if(this._error){
return;
}
return this._httpRequest;
}
/*
* Function:Set Callback function para
*/
this.doSetCallBack=function(callBack,paraData){
this._callBack=(callBack)?callBack:null;
this._callBackPara=(paraData)?paraData:null;
};
/*
* Function: Get current stateString
*/
this.doGetState=function(){
return this._stateString;
}
/*
* Function: get current Error
*/
this.doGetError=function(){
return this._error;
}
/*
*
*/
this.doCallBack=function(){
this._callBack(this._requestResult,this._callBackPara);
}
/*
* Function: Send the request
* urlPar: request's url path
* [methodPar]:request's method
* [domPar]: request's result is dom or string
*/
this.doSendResuest=function(urlPar,methodPar,obj,domPar,asyPar){
if(obj._error){
return;
}
methodPar=((methodPar)?methodPar:"GET");
asyPar=((asyPar)?asyPar:true);
this._domResult=(domPar)?domPar:obj._domResult;
try{
var a=this._getRequestObj();
a.onreadystatechange=function(){
if(obj._error){
return;
}
var readyStateTmp=a.readyState;
if(readyStateTmp==0){
obj._setMessage("未初始化！");
}else if(readyStateTmp==1){
obj._setMessage("正在读取中......");
}else if(readyStateTmp==2){
obj._setMessage("已经读取过！");
}else if(readyStateTmp==3){
obj._setMessage("正在逐个切换......");
}else if(readyStateTmp==4){
var statusTmp=a.status;
if(statusTmp==404){
obj._setMessage("未找到请求页面！",true);
}else if(window.location.href.indexOf("http")==-1 || statusTmp==200){
obj._setMessage("完成！");
if(this._domResult && window.XMLHttpRequest){
obj._requestResult=a.responseXml;
}else{
obj._requestResult=a.responseText;
}
if(obj._callBack){
obj.doCallBack();
}
}else{
obj._setMessage("未知错误！");
}
}else{
obj._setMessage("未知错误！");
}
}
a.open(methodPar,urlPar,asyPar);
// a.setRequestHeader("If-Modified-Since","0");
a.send(obj._requestData);
}catch(ex){
obj._setMessage(ex,true);
}
}
/*
* Function: Deal exception error
* exPar:error string
*/
this._setMessage=function(exPar,mark){
this._stateString=exPar.toString();
this._error=(mark)?mark:false;
}
}
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