javascript设置cookie与过期时间

Question

我正在通过Javascript设置一个cookie,它工作正常,但它没有采取我给予的过期时间.无论我给出什么,它都会继续获取会话值,下面是我从这里获取的代码

var now = new Date();
var time = now.getTime();
var expireTime = time + 1000*60;
now.setTime(expireTime);
var tempExp = 'Wed, 31 Oct 2012 08:50:17 GMT';
document.cookie = aaa+'='+sStr+';expires='+now.toGMTString()+';path=/';

我尝试给出硬编码值,但它仍然显示为chrome dev工具中的会话过期

var tempExp = 'Wed, 31 Oct 2012 08:50:17 GMT';
document.cookie = aaa+'='+sStr+';expires='+tempExp+';path=/';

知道我做错了什么吗？

Answer 1

我觉得还可以.我把时间设定为1000*36000.

function display() { 
  var now = new Date();
  var time = now.getTime();
  var expireTime = time + 1000*36000;
  now.setTime(expireTime);
  var tempExp = 'Wed, 31 Oct 2012 08:50:17 GMT';
  document.cookie = 'cookie=ok;expires='+now.toGMTString()+';path=/';
  //console.log(document.cookie);
}

Answer 2

这是我编写另一个应用程序的函数.随意重复使用:

function writeCookie (key, value, days) {
    var date = new Date();

    // Default at 365 days.
    days = days || 365;

    // Get unix milliseconds at current time plus number of days
    date.setTime(+ date + (days * 86400000)); //24 * 60 * 60 * 1000

    window.document.cookie = key + "=" + value + "; expires=" + date.toGMTString() + "; path=/";

    return value;
};

Answer 3

1. 通过使用max-age

   • 创建一天cookie的语法:

     // 1 Day = 24 Hrs = 24*60*60 = 86400.
     

     它将创建一个24小时(1天)= 24*60*60 = 86400的cookie

   • 删除cookie的语法:

     document.cookie = "cookieName=cookieValue; max-age=86400; path=/;";
     

2. 通过使用到期

   • 创建一天cookie的语法:

   var expires =(new Date(Date.now()+ 86400*1000)).toUTCString();

   document.cookie ="cookieName = cookieValue; expires ="+ expires + 86400)+"; path = /;"

Answer 4

document.cookie = "cookie_name=cookie_value; max-age=31536000; path=/";

将值设置为一年.

Answer 5

我使用一个函数来存储具有自定义过期时间（以天为单位）的 cookie：

// use it like: writeCookie("mycookie", "1", 30)
// this will set a cookie for 30 days since now
function writeCookie(name,value,days) {
  if (days) {
    var date = new Date();
    date.setTime(date.getTime()+(days*24*60*60*1000));
    var expires = "; expires="+date.toGMTString();
  }
  else var expires = "";
  document.cookie = name+"="+value+expires+"; path=/";
}