javascript - Laravel5 AJAX 设置 cookie 不工作

Question

你能给我一些建议吗？

我正在 COOKIES 中保存一些数据。我在 Laravel 中为此创建了方法，所以我在此方法上调用 ajax 来设置 cookie，但是当我尝试调用下一个访问此 cookie 值的请求时，它没有保存，我可以在第二个请求中访问它...我不不知道为什么……这很奇怪:/

我有这个代码:

public function setCookie: method in laravel controller to set cookie
var setCookie: function in javascript where I call ajax request to set cookie
var loadEvents: method called after ajax call where I set cookie.


public function setCookie(Request $request) {

    $cookieName = $request->input('cookie_name');
    $cookieVal = $request->input('cookie_val');

    return response()->json(['status' => 'success'])->withCookie(cookie($cookieName, $cookieVal));
}


var setCookie = function (cookieName, cookieVal) {
    $.ajax({
        type: 'POST',
        url: window.setCookieUrl,
        data: {
            cookie_name: cookieName,
            cookie_val: cookieVal,
            _token: getCsrfToken()
        }
    }).done();
};



public function loadEvents(Request $request) {

    $activeCalendarsIds = $request->input('active_calendars_ids');
    if($activeCalendarsIds == null)
        $activeCalendarsIds = Cookie::get('adminActiveCalendars');


    $eventsPage = $this->getPostParam('page');
    $eventsLimit = $this->getPostParam('limit');

    $this->service->setFilter('page', $eventsPage);
    $this->service->setFilter('limit', $eventsLimit);

    $events = $this->service->getCalendarsEvents($activeCalendarsIds);
    $eventList = view('admin/calendar/event_list', ['events' => $events]);

    return response()->json([
        'status' => 'success',
        'data' => '' . $eventList . ''
    ]);

}

Answer 1

更新:以下按预期工作。请求的陈述顺序似乎有误。 setCookie ajax 请求必须在发送任何 loadEvent ajax 请求之前完成。

Controller 操作:

public function set(Request $request)
{
    $cookieName = $request->input('cookie_name');
    $cookieVal = $request->input('cookie_val');
    return response()->json(['previousCookieValue' => Cookie::get('adminActiveCalendars')])->withCookie(cookie($cookieName, $cookieVal));
}

public function events() {
    return response()->json([
        'cookieValue' => Cookie::get('adminActiveCalendars'),
    ]);
}

Javascript/jQuery:

var setCookie = function(cookieName, cookieVal) {
  console.log('Set cookie', cookieName, cookieVal);
  $.ajax({
    type: 'POST',
    url: '{{ route('cookies.set') }}',
    data: {
      cookie_name: cookieName,
      cookie_val: cookieVal,
      _token: '{{ csrf_token() }}'
    },
    success: function(response) {
      console.log('Response:', response);
    }
  });
};

var loadEvents = function() {
  console.log('Load events');
  $.ajax({
    type: 'GET',
    url: '{{ route('cookies.events') }}',
    success: function(response) {
      console.log('Response:', response);
    }
  });
};

模板:

<button onclick="loadEvents();" type="button">Load Events</button>
<button onclick="setCookie('adminActiveCalendars', 'Foo');" type="button">Set Cookie Foo</button>
<button onclick="setCookie('adminActiveCalendars', 'Bar');" type="button">Set Cookie Bar</button>

控制台输出:

Load events
Object {cookieValue: null} // initially empty
Set cookie adminActiveCalendars Foo
Response: Object {previousCookieValue: null}
Load events
Response: Object {cookieValue: "Foo"} // first loadEvents request after setting cookie already holds correct value
Set cookie adminActiveCalendars Bar
Response: Object {previousCookieValue: "Foo"}
Load events
Response: Object {cookieValue: "Bar"}

完全重新加载页面后，然后加载事件:

Load events
Response: Object {cookieValue: "Bar"} // still here, right from the start

---

关于替代方法的注释:

• 在不了解应用程序内部的情况下——似乎在客户端设置 cookie 就足够了
• 或者，如果客户端的其他内容不需要此类信息，则将此类信息存储在 Session 变量中而不是 Cookie 中。 There are some differences .首先，您不必费心处理双方(客户端和服务器)的 cookie。
• 或者，不要将此信息存储在任何地方 - 将其作为过滤器参数添加到请求中。

---

原始答案:

这不会设置 cookie:

return view('welcome')->withCookie(cookie($cookieName, $cookieVal, 45000));

这样做:

$response = new \Illuminate\Http\Response('Test');
$response->withCookie(cookie($cookieName, $cookieVal, 45000));
return $response;

改编自:

• https://laravel.com/docs/master/requests#cookies
• https://laracasts.com/discuss/channels/general-discussion/how-to-set-a-cookie-with-laravel-5