转： js操作cookie

cookie的几个概念

http://dearhappyfish.blog.163.com/blog/static/1901094152012422114753777/

js操作cookie

转：http://www.oschina.net/code/snippet_156736_4923

  1 <script language=javascript> 
  2  
  3 //获得coolie 的值
  4  
  5   
  6  
  7 function cookie(name){    
  8  
  9    var cookieArray=document.cookie.split("; "); //得到分割的cookie名值对    
 10  
 11    var cookie=new Object();    
 12  
 13    for (var i=0;i<cookieArray.length;i++){    
 14  
 15       var arr=cookieArray[i].split("=");       //将名和值分开    
 16  
 17       if(arr[0]==name)return unescape(arr[1]); //如果是指定的cookie，则返回它的值    
 18  
 19    } 
 20  
 21    return ""; 
 22  
 23 } 
 24  
 25   
 26  
 27 function delCookie(name)//删除cookie
 28  
 29 {
 30  
 31    document.cookie = name+"=;expires="+(new Date(0)).toGMTString();
 32  
 33 }
 34  
 35   
 36  
 37 function getCookie(objName){//获取指定名称的cookie的值
 38  
 39     var arrStr = document.cookie.split("; ");
 40  
 41     for(var i = 0;i < arrStr.length;i ++){
 42  
 43         var temp = arrStr[i].split("=");
 44  
 45         if(temp[0] == objName) return unescape(temp[1]);
 46  
 47    } 
 48  
 49 }
 50  
 51   
 52  
 53 function addCookie(objName,objValue,objHours){      //添加cookie
 54  
 55     var str = objName + "=" + escape(objValue);
 56  
 57     if(objHours > 0){                               //为时不设定过期时间，浏览器关闭时cookie自动消失
 58  
 59         var date = new Date();
 60  
 61         var ms = objHours*3600*1000;
 62  
 63         date.setTime(date.getTime() + ms);
 64  
 65         str += "; expires=" + date.toGMTString();
 66  
 67    }
 68  
 69    document.cookie = str;
 70  
 71 }
 72  
 73   
 74  
 75 function SetCookie(name,value)//两个参数，一个是cookie的名子，一个是值
 76  
 77 {
 78  
 79     var Days = 30; //此 cookie 将被保存 30 天
 80  
 81     var exp = new Date();    //new Date("December 31, 9998");
 82  
 83     exp.setTime(exp.getTime() + Days*24*60*60*1000);
 84  
 85     document.cookie = name + "="+ escape (value) + ";expires=" + exp.toGMTString();
 86  
 87 }
 88  
 89 function getCookie(name)//取cookies函数        
 90  
 91 {
 92  
 93     var arr = document.cookie.match(new RegExp("(^| )"+name+"=([^;]*)(;|$)"));
 94  
 95      if(arr != null) return unescape(arr[2]); return null;
 96  
 97   
 98  
 99 }
100  
101 function delCookie(name)//删除cookie
102  
103 {
104  
105     var exp = new Date();
106  
107     exp.setTime(exp.getTime() - 1);
108  
109     var cval=getCookie(name);
110  
111     if(cval!=null) document.cookie= name + "="+cval+";expires="+exp.toGMTString();
112  
113 }
114  
115 </script>
posted @ 2014-07-21 17:33  古来征战几人回  阅读(154)  评论(0)  编辑  收藏  举报