要设置Cookie,您通常会在Ok().withCookies(…)
等操作中操作结果。如何在Play Framework 2.2/Scala中的ActionBuilder中设置cookie?
我创建了一个AuthenticatedAction extends ActionBuilder[AuthenticatedRequest]
,并且需要通过使用新的maxAge有时设置新的cookie来更新用户cookie的到期日期。我无法弄清楚如何做到这一点,因为我找不到操作结果的方法。
在invokeBlock
函数内,我调用block(new AuthenticatedRequest(identity, request))
,它返回Future [SimpleResult],我不能在Future[SimpleResult]
上使用withCookies()
。
这里是我的自定义AuthenticatedAction:
class AuthenticatedRequest[A](val identity: Identity, request: Request[A]) extends WrappedRequest[A](request)
object AuthenticatedAction extends ActionBuilder[AuthenticatedRequest] {
def redirectToLogin = {
Redirect("/login")
}
def invokeBlock[A](request: Request[A], block: (AuthenticatedRequest[A]) => Future[SimpleResult]) = {
request.cookies.get("mycookie").map { cookie =>
val maybeIdentity = Auth.validateAndTouchTokenAndGetUser(cookie.value)
maybeIdentity.map { identity =>
// If it's a persistent session, update timestamp by sending a new cookie sometimes!
// To simplify this example, assume we always want to set a new cookie.
val futureResult = block(new MaybeAuthenticatedRequest(maybeIdentity, request))
// What next?
val newMaxAge = 1234
// ???result???.withCookies(Cookie("mycookie", cookie.value, newMaxAge))
} getOrElse {
// Respond with redirect to login and delete cookie and a warning message
Future.successful(
redirectToLogin
.discardingCookies(DiscardingCookie("mycookie"))
.flashing("warning" -> "Your session has expired. Please sign in again.")
)
}
} getOrElse {
// Respond with redirect to login
Future.successful(redirectToLogin)
}
}
}
完美,这作品! – Nick
@seriejja我有一个类似的问题,但我不是100%确定你的代码片段应该去哪里?我需要从自定义Action内部创建一个cookie,但不确定。你介意澄清在哪里做到这一点? – Blankman
@Blankman请看我的编辑 – serejja