Java Web中cookie中的有效期

(1)Java Web后臺添加cookieCookie?emailCook?=?new?Cookie(name2,?"whuang");

emailCook.setPath("/");

response.addCookie(emailCook);

(2)沒有顯式設置有效期,則有效期為session,即關閉瀏覽器之后就失效

(3)設置有效期:emailCook.setMaxAge(10000000);

response.addCookie(emailCook);

setMaxAge 的單位是:秒public?void?setMaxAge(int?expiry)Sets the maximum age of the cookie in seconds.

A positive value indicates 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

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