JS写的cookie类
王朝html/css/js·作者佚名 2006-01-31
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<script language="JScript">
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function Cookie(delim){
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this._Cookie=[];
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this.Load=function(){
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if(document.cookie.indexOf(";")!=-1){
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var _sp,_name,_tp,_tars,_tarslength;
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var _item=document.cookie.split("; ");
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var _itemlength=_item.length;
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while(_itemlength>0){
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_sp=_item[--_itemlength].split("=");
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_name=_sp[0];
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_tp=_sp[1].split(",");
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_tars=_tp.slice(1,_tp.length);
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this._Cookie[_name]=[];
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this._Cookie[_name]=_tars;
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this._Cookie[_name]["timeout"]=_tp[0];
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}
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return true;
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}
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return false;
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}
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this.Save=function(){
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var _str,_ars,_mars,_marslength,timeout,i,key;
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for(key in this._Cookie){
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if(!this._Cookie[key])return;
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_str=[];
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_mars=CookieClass._Cookie[key];
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_marslength=_mars.length;
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for(i=0;i<_marslength;i++)_str[_str.length]=escape(_mars[i]);
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document.cookie=key+"="+_mars["timeout"]+(_str.length>0?",":"")+_str+(_mars["timeout"]==0?"":";expires="+new Date(parseInt(_mars["timeout"])).toGMTString());
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}
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}
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this.GetCookieCount=function(){
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var _length=0,key;
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for(key in this._Cookie)_length++;
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return _length;
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}
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this.Create=function(name,days){
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days=days?days:0;
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if(!this._Cookie[name])this._Cookie[name]=[];
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this._Cookie[name]["timeout"]=days!=0?new Date().getTime()+parseInt(days)*86400000:0;
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}
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this.Modify=function(name,days){
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this.Create(name,days);
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}
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this.GetTime=function(name){
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return new Date(parseInt(this._Cookie[name]["timeout"]));
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}
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this.Delete=function(name){
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this.Create(name,0);
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}
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this.AddItem=function(name,value){
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this._Cookie[name][this._Cookie[name].length]=value;
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}
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this.DelItem=function(name,index){
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var _ttime=this._Cookie[name]["timeout"];
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this._Cookie[name]=this._Cookie[name].slice(0,index).concat(this._Cookie[name].slice(parseInt(index)+1,this._Cookie[name].length));
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this._Cookie[name]["timeout"]=_ttime;
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}
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this.GetCount=function(name){
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return this._Cookie[name].length;
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}
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this.GetItem=function(name,index){
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return this._Cookie[name][index];
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}
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}
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</script>
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<script language="JScript">
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var CookieClass=new Cookie();
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if(!CookieClass.Load()){
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CookieClass.Create("Pass",1);
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CookieClass.AddItem("Pass","Ps1");
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CookieClass.AddItem("Pass","Ps2");
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CookieClass.AddItem("Pass","Ps3");
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CookieClass.AddItem("Pass","Ps4");
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CookieClass.DelItem("Pass",1);
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CookieClass.Save();
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}
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alert("Cookie过期时间:"+CookieClass.GetTime("Pass").toLocaleString());
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alert(document.cookie);
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</script>
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<script>
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function eyunCookie()
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{this.key="";//初始化key。
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this.value="";//初始化key's value。
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this.expires=0;//初始化cookie的有效时间，单位毫秒。
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this.init=function()//对象初始化
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{this.key="";
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this.value="";
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this.expires=0;
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}
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this.set=function(key,value,expires)//设置cookie
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{if(this.key=="")this.key=key;
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if(this.value=="")this.value=value;
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if(this.expires<=0)this.expires=expires;
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if(this.key==""||typeof(this.key)!="string")
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{alert("请先设置欲保存的cookie名称！");
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this.init();
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return false;
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}
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if(this.key.match(/[,; ]/))
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{alert("cookie名称中不能包含“,”、“;”或空格！");
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this.init();
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return false;
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}
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if(this.value.toString().match(/[,; ]/)||typeof(this.value)=="undefined")
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{alert("cookie值中不能包含“,”、“;”或空格！");
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this.init();
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return false;
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}
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if(this.expires<=0||typeof(this.expires)!="number")
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{alert("请先正确设置cookie的有效时间！");
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this.init();
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return false;
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}
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var cookie=document.cookie;
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if(cookie.indexOf(this.key+"=")!=-1)
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{if(!confirm("欲保存的cookie名称已经存在，是否要进行替换？"))
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{this.init();
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return false;
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}
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}
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var dt=new Date();
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dt.setTime(dt.getTime()+this.expires);
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document.cookie=this.key+"="+this.value+";expires="+dt.toGMTString();
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this.init();
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return true;
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}
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this.get=function(key)//取得名为key的cookie的值
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{if(key==""||key.match(/[,; ]/))
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{alert("请正确设置欲查找的cookie名称！")
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return false;
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}
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var cookie=document.cookie;
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var start=cookie.indexOf(key+"=");
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if(start==-1)
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{alert("欲查找的cookie不存在！")
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return false;
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}
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var end=cookie.indexOf(";",start);
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if(end==-1)
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end=cookie.length;
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var getCookie=cookie.substring(start+key.length+1,end);
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alert("cookie："+key+"的值为"+getCookie);
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return getCookie;
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}
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this.showAll=function(){alert("共有以下cookie对：\n"+document.cookie.split(";").toString().replace(/,/g,"\n"));}//显示所有cookie
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this.del=function(key)//删除名为key的cookie
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{if(key==""||key.match(/[,; ]/))
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{alert("请正确设置欲删除的cookie名称！")
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return false;
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}
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var dt=new Date();
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dt.setTime(dt.getTime());
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document.cookie=key+"=eyunDelete;expires="+dt.toGMTString();
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this.init();
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return true;
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}
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this.destroy=function()//销毁所有cookie
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{var dt=new Date();
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dt.setTime(dt.getTime());
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while(document.cookie!="")
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document.cookie=document.cookie+";expires="+dt.toGMTString();
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this.init();
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return true
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}
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}
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var cookieTest=new eyunCookie()
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function settest()
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{cookieTest.key="test"
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cookieTest.value="ok"
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cookieTest.expires=31536000000
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cookieTest.set()
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}
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</script>
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<input type=button onclick=cookieTest.showAll() value=read><input type=button onclick="cookieTest.set('a','test',31536000000)" value=setA><input type=button onclick="settest();" value=setTest><input type=button onclick="cookieTest.destroy()" 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>
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