Cookie's expire age

最新推荐文章于 2025-09-07 21:03:52 发布

原创最新推荐文章于 2025-09-07 21:03:52 发布 · 799 阅读

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#integer #browser #web

本文解释了如何通过setMaxAge方法设置cookie的有效期。包括正数、负数和零的不同含义：正数表示cookie将在指定秒数后过期；负数表示浏览器关闭时删除cookie；零表示立即删除cookie。

I have understood how the max age affects a cookie. But I always forget the defination. so It's better to record it here. Hope it is helpful to others.

public void setMaxAge(int expiry)
Sets the maximum age of the cookie in seconds.
A positive valueindicates that the cookie will expire after that many seconds have passed. Note that the value is the maximum age when the cookie will expire, not the cookie's current age.
A negative value means that the cookie is not stored persistently and will be deleted when the Web browser exits. A zero value causes the cookie to be deleted.

Parameters: expiry - an integer specifying the maximum age of the cookie in seconds; if negative, means the cookie is not stored; if zero, deletes the cookie