SmartHTTP 简易HttpRequest类(ASP)

　　最简单的调用方法：
response.write SmartHttp(

复杂调用
set myhttp = SmartHttp(
myhttp.dataset.append wd,smarthttp
myhttp.send()
response.write myhttp.gettext(gbk)

复制代码 代码如下:
<script language=jscript runat=server>
function SmartHttp(url,method,data){
return new _SmartHttp(url,method,data);
}

function _SmartHttp(url,method,data){
if(typeof method==undefined) method=GET;
if(typeof data==undefined) data=;
method = method.toUpperCase();
method = method!=POST ? GET : POST;

this.url=url;
this.data=data;
this.charset=gb2312;
this.http=null;
this.headers=[];
this.status=0;
this.readyState=0;
this.msg=;
this.dataset={
charset:gb2312,
data:[],
append:function(key,value,noencode){
var fn=null;
if(this.charset.toLowerCase()==utf-8){fn = encodeURIComponent;}else{fn = escape;}
if(noencode==true){fn=function(_str){return _str;}}
this.data.push({key:fn(key),value:fn(value)});
},
remove:function(key){
if(this.data.length<=0) return false;
var _data=[];
for(var i=0;i<this.data.length;i++){
if(this.data[i].key!=key){
_data.push(this.data[i]);
}
}
this.data = _data;
},
isexists:function(key){
if(this.data.length<=0) return false;
for(var i=0;i<this.data.length;i++){
if(this.data[i].key==key){
return true;
}
}
return false;
},
clear:function(){
this.dataset.data=[];
}
};
}

var datasetstr=;
if(this.dataset.data.length>0){
for(var i=0;i<this.dataset.data.length;i++){
datasetstr += this.dataset.data[i].key + = + this.dataset.data[i].value + &;
}
}
if(datasetstr!=) datasetstr = datasetstr.substr(0,datasetstr.length-1);
if(this.data==){this.data = datasetstr;}else{if(datasetstr!=)this.data+= & + datasetstr;}
if(this.data==)this.data=null;
this.url += ((this.url.indexOf(?)<0) ? ? : &) + jornd= + this.getrnd();
if(this.method==GET && this.data!=null) this.url += & + this.data;
if(this.method==POST) this.headers.push(Content-Type:application/x-
if(!this.charset this.charset==) this.charset = gb2312;
};

_SmartHttp.prototype.header=function(headstr){
if(headstr.indexOf(:)>=0) this.headers.push(headstr);
};
_SmartHttp.prototype.send=function(){
this.init();
var _http = this.getobj();
if(_http==null){return ;}
try{_http.setTimeouts(10000,10000,10000,30000);}catch(ex){}
_http.open(this.method,this.url,false);
if(this.headers.length>0){
for(var i=0;i<this.headers.length;i++){
var Sindex = this.headers[i].indexOf(:);
var key = this.headers[i].substr(0,Sindex);
var value = this.headers[i].substr(Sindex+1);
_http.setRequestHeader(key,value);
}
}
_http.send(this.data);
this.readyState = _http.readyState;
if(_http.readyState==4){
this.status = _http.status;
this.http = _http;
this.content = _http.responseBody;
}
return this;
}

_SmartHttp.prototype.getbinary=function(){
return this.content;
};

_SmartHttp.prototype.gettext=function(charset){
try{
return this.b2s(this.content,charset ? charset : this.charset);
}catch(ex){
this.msg = ex.description;
return ;
}
};

_SmartHttp.prototype.getjson=function(charset){
try{
var _json=null;
eval(_json=( + this.gettext(charset) + ););
return _json;
}catch(ex){
this.msg = ex.description;
return null;
}
};

_SmartHttp.prototype.getxml=function(charset){
try{
var _dom = new ActiveXObject(MSXML2.DOMDocument);
_dom.loadXML(this.gettext(charset).replace(&,&));
return _dom;
}catch(ex){
this.msg = ex.description;
return null;
}
};
_SmartHttp.prototype.getobj = function (){
var b=null;
var httplist = [MSXML2.serverXMLHttp.3.0,MSXML2.serverXMLHttp,MSXML2.XMLHttp.3.0,MSXML2.XMLHttp,Microsoft.XMLHttp];
for(var i = 0;i<=httplist.length -1;i++){
try{
b= new ActiveXObject(httplist[i]);
(function(o){
_SmartHttp.prototype.getobj = function(){return new ActiveXObject(o)};
})(httplist[i]);
return b;
}catch(ex){
//eval(this.msg = ex.description;);
}
}
return b;
};

_SmartHttp.prototype.getrnd = function (){return Math.random().toString().substr(2);};

_SmartHttp.prototype.b2s = function(bytSource, Cset){
var Objstream;
var byts;
Objstream =Server.CreateObject(ADODB.Stream);
Objstream.Type = 1;
Objstream.Mode = 3;
Objstream.Open();
Objstream.Write(bytSource);
Objstream.Position = 0;
Objstream.Type = 2;
Objstream.CharSet = Cset;
byts = Objstream.ReadText();
Objstream.Close();
Objstream = null;
return byts;
};
_SmartHttp.prototype.urlencode=function(str){ return encodeURIComponent(str);};
_SmartHttp.prototype.urldecode=function(str){ return decodeURIComponent(str);};
</script>