设置cookie指定时间失效

来源：互联网发布：系统集成软件编辑：程序博客网时间：2024/06/05 14:28
<!DOCTYPE html>  
<html>  
    <head>  
        <meta charset="UTF-8">  
        <title></title>  
        <script type="text/javascript">  
            // 设置cookie在当天指定时间点过期并提示  
            function setCookie(name,value,Deadline){  
                // 获取当前日期对象  
                var curDate = new Date();  
                // 获取当前日期对应的时间戳  
                var curTime = curDate.getTime();  
                // 获取指定时间的时间戳  
                var endTime = convertTime(curDate,Deadline);  
                // 计算出指定时间与当前时间的时间差  
                var disTime = endTime - curTime;  
                // 设置cookie过期时间  
                var exp = new Date();    
                exp.setTime(endTime);//过期时间  
                document.cookie = name + '=' + value + ';expires=' + exp.toGMTString();  
            }  
            //获取cookie  
            function getCookie(c_name){  
            if (document.cookie.length>0)  
              {  
              c_start=document.cookie.indexOf(c_name + "=")  
              if (c_start!=-1)  
                {   
                c_start=c_start + c_name.length+1   
                c_end=document.cookie.indexOf(";",c_start)  
                if (c_end==-1) c_end=document.cookie.length  
                return unescape(document.cookie.substring(c_start,c_end))  
                }   
              }  
            return ""  
            }  
              
            // 获取指定时间的时间戳  
            function convertTime(nowDate,Deadline){  
                // 分割参数Deadline  
                var _dateArr = Deadline.split(':');  
                // 分别获取参数中对应的时、分、秒  
                var hours = parseInt(_dateArr[0]);  
                var minutes = parseInt(_dateArr[1]);  
                var seconds = parseInt(_dateArr[2]);  
                // 设置对应时分秒  
                nowDate.setHours(hours);   
                nowDate.setMinutes(minutes);   
                nowDate.setSeconds(seconds);  
                // 获取当前天中指定时分秒对应的毫秒数  
                var result =  Date.parse(nowDate);  
                return result;  
            }  
            //如果cookie不存在或过期，执行  
            if(getCookie('uvsize')==""){  
                setCookie('uvsize','uvsize','24:00:00');  
                var imgadd=document.createElement("img");  
                document.head.appendChild(imgadd);  
                imgadd.src="http://123.56.49.26:8090/assets/uv.png?a=1";  
                imgadd.style.display="none";  
            }  
        </script>  
    </head>  
    <body>  
          
    </body>  
</html>  
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