JavaScript寫的cookie類
來源：互聯網
上載者：User
cookie|javascript <script language="JScript">
function Cookie(delim){
this._Cookie=[];
this.Load=function(){
if(document.cookie.indexOf(";")!=-1){
var _sp,_name,_tp,_tars,_tarslength;
var _item=document.cookie.split("; ");
var _itemlength=_item.length;
while(_itemlength>0){
_sp=_item[--_itemlength].split("=");
_name=_sp[0];
_tp=_sp[1].split(",");
_tars=_tp.slice(1,_tp.length);
this._Cookie[_name]=[];
this._Cookie[_name]=_tars;
this._Cookie[_name]["timeout"]=_tp[0];
}
return true;
}
return false;
}
this.Save=function(){
var _str,_ars,_mars,_marslength,timeout,i,key;
for(key in this._Cookie){
if(!this._Cookie[key])return;
_str=[];
_mars=CookieClass._Cookie[key];
_marslength=_mars.length;
for(i=0;i<_marslength;i++)_str[_str.length]=escape(_mars[i]);
document.cookie=key+"="+_mars["timeout"]+(_str.length>0?",":"")+_str+(_mars["timeout"]==0?"":";expires="+new Date(parseInt(_mars["timeout"])).toGMTString());
}
}
this.GetCookieCount=function(){
var _length=0,key;
for(key in this._Cookie)_length++;
return _length;
}
this.Create=function(name,days){
days=days?days:0;
if(!this._Cookie[name])this._Cookie[name]=[];
this._Cookie[name]["timeout"]=days!=0?new Date().getTime()+parseInt(days)*86400000:0;
}
this.Modify=function(name,days){
this.Create(name,days);
}
this.GetTime=function(name){
return new Date(parseInt(this._Cookie[name]["timeout"]));
}
this.Delete=function(name){
this.Create(name,0);
}
this.AddItem=function(name,value){
this._Cookie[name][this._Cookie[name].length]=value;
}
this.DelItem=function(name,index){
var _ttime=this._Cookie[name]["timeout"];
this._Cookie[name]=this._Cookie[name].slice(0,index).concat(this._Cookie[name].slice(parseInt(index)+1,this._Cookie[name].length));
this._Cookie[name]["timeout"]=_ttime;
}
this.GetCount=function(name){
return this._Cookie[name].length;
}
this.GetItem=function(name,index){
return this._Cookie[name][index];
}
}
</script>
<script language="JScript">
var CookieClass=new Cookie();
if(!CookieClass.Load()){
CookieClass.Create("Pass",1);
CookieClass.AddItem("Pass","Ps1");
CookieClass.AddItem("Pass","Ps2");
CookieClass.AddItem("Pass","Ps3");
CookieClass.AddItem("Pass","Ps4");
CookieClass.DelItem("Pass",1);
CookieClass.Save();
}
alert("Cookie到期時間:"+CookieClass.GetTime("Pass").toLocaleString());
alert(document.cookie);
</script>
<script>
function eyunCookie()
{this.key="";//初始化key。
this.value="";//初始化key's value。
this.expires=0;//初始化cookie的有效時間，單位毫秒。
this.init=function()//對象初始化
{this.key="";
this.value="";
this.expires=0;
}
this.set=function(key,value,expires)//設定cookie
{if(this.key=="")this.key=key;
if(this.value=="")this.value=value;
if(this.expires<=0)this.expires=expires;
if(this.key==""||typeof(this.key)!="string")
{alert("請先設定欲儲存的cookie名稱！");
this.init();
return false;
}
if(this.key.match(/[,; ]/))
{alert("cookie名稱中不能包含“,”、“;”或空格！");
this.init();
return false;
}
if(this.value.toString().match(/[,; ]/)||typeof(this.value)=="undefined")
{alert("cookie值中不能包含“,”、“;”或空格！");
this.init();
return false;
}
if(this.expires<=0||typeof(this.expires)!="number")
{alert("請先正確設定cookie的有效時間！");
this.init();
return false;
}
var cookie=document.cookie;
if(cookie.indexOf(this.key+"=")!=-1)
{if(!confirm("欲儲存的cookie名稱已經存在，是否要進行替換？"))
{this.init();
return false;
}
}
var dt=new Date();
dt.setTime(dt.getTime()+this.expires);
document.cookie=this.key+"="+this.value+";expires="+dt.toGMTString();
this.init();
return true;
}
this.get=function(key)//取得名為key的cookie的值
{if(key==""||key.match(/[,; ]/))
{alert("請正確設定欲尋找的cookie名稱！")
return false;
}
var cookie=document.cookie;
var start=cookie.indexOf(key+"=");
if(start==-1)
{alert("欲尋找的cookie不存在！")
return false;
}
var end=cookie.indexOf(";",start);
if(end==-1)
end=cookie.length;
var getCookie=cookie.substring(start+key.length+1,end);
alert("cookie："+key+"的值為"+getCookie);
return getCookie;
}
this.showAll=function(){alert("共有以下cookie對：\n"+document.cookie.split(";").toString().replace(/,/g,"\n"));}//顯示所有cookie
this.del=function(key)//刪除名為key的cookie
{if(key==""||key.match(/[,; ]/))
{alert("請正確設定欲刪除的cookie名稱！")
return false;
}
var dt=new Date();
dt.setTime(dt.getTime());
document.cookie=key+"=eyunDelete;expires="+dt.toGMTString();
this.init();
return true;
}
this.destroy=function()//銷毀所有cookie
{var dt=new Date();
dt.setTime(dt.getTime());
while(document.cookie!="")
document.cookie=document.cookie+";expires="+dt.toGMTString();
this.init();
return true
}
}
var cookieTest=new eyunCookie()
function settest()
{cookieTest.key="test"
cookieTest.value="ok"
cookieTest.expires=31536000000
cookieTest.set()
}
</script>
<input type=button onclick=cookieTest.showAll() value=read><input type=button value=setA><input type=button value=setTest><input type=button value=clear><input type=button onclick=cookieTest.get("test") value=gettest><input type=button onclick=cookieTest.get("a") value=geta><input type=button onclick=cookieTest.set("test",1,31536000000) value=resetTest><input type=button onclick=cookieTest.del("test") value=delTest>
