如何在 Swift 中使用 UIWebView 管理 Cookie

Question

有一个主题，人们可以很容易地看到如何使用新语言 Swift 在 Web 视图中管理 cookie 怎么样？如果你在互联网上签到，当你需要实现这一点时，你不会发现任何有趣的东西。甚至苹果的文档也很差。

有人知道如何在 Swift 中处理这些过程吗？这是我在 Obj-C 中发现的：

查看存储的饼干

NSHTTPCookie *cookie;
NSHTTPCookieStorage *cookieJar = [NSHTTPCookieStorage sharedHTTPCookieStorage];
for (cookie in [cookieJar cookies]) {
NSLog(@"%@", cookie);
}

删除存储的饼干

NSHTTPCookieStorage *storage = [NSHTTPCookieStorage sharedHTTPCookieStorage];
for (NSHTTPCookie *cookie in [storage cookies]) {
[storage deleteCookie:cookie];
}
[[NSUserDefaults standardUserDefaults] synchronize];

如果我们能给出一次答案，对每个人都很好！干杯！

Answer 1

试试这段代码：

查看存储的饼干

    if let cookies = NSHTTPCookieStorage.sharedHTTPCookieStorage().cookies {
        for cookie in cookies {
            NSLog("(cookie)")
        }
    }

删除存储的饼干

    var storage : NSHTTPCookieStorage = NSHTTPCookieStorage.sharedHTTPCookieStorage()
    for cookie in storage.cookies  as! [NSHTTPCookie]{
        storage.deleteCookie(cookie)
    }

斯威夫特 2.0

let storage = NSHTTPCookieStorage.sharedHTTPCookieStorage()
for cookie in storage.cookies! {
 storage.deleteCookie(cookie)
}

斯威夫特 3.0

if let cookies = HTTPCookieStorage.shared.cookies {
    for cookie in cookies {
        NSLog("(cookie)")
    }
}
let storage = HTTPCookieStorage.shared
for cookie in storage.cookies! {
    storage.deleteCookie(cookie)
}

Answer 2

swift 3 清除版本

保存饼干

func saveCookies() {
    guard let cookies = HTTPCookieStorage.shared.cookies else {
        return
    }
    let array = cookies.flatMap { (cookie) -> [HTTPCookiePropertyKey: Any]? in
        cookie.properties
    }
    UserDefaults.standard.set(array, forKey: "cookies")
    UserDefaults.standard.synchronize()
}

加载饼干 ：

func loadCookies() {
    guard let cookies = UserDefaults.standard.value(forKey: "cookies") as? [[HTTPCookiePropertyKey: Any]] else {
        return
    }
    cookies.forEach { (cookie) in
        guard let cookie = HTTPCookie.init(properties: cookie) else {
            return
        }
        HTTPCookieStorage.shared.setCookie(cookie)
    }
}

您可以调用这些函数，如以下代码

func webViewDidStartLoad(_ webView: UIWebView) {
    loadCookies()
}
func webViewDidFinishLoad(_ webView: UIWebView) {
    saveCookies()
}

不要忘记为您的 WebView 提供一个用于 webViewDidStartLoad 和 webViewDidFinishLoad 的委托

Answer 3

swift 2.0

let storage = NSHTTPCookieStorage.sharedHTTPCookieStorage()
for cookie in storage.cookies! {
 storage.deleteCookie(cookie)
}
NSUserDefaults.standardUserDefaults().synchronize()

Answer 4

感谢您的快速"翻译"...只需要将删除更改为as！要强制向下投射：

var storage : NSHTTPCookieStorage = NSHTTPCookieStorage.sharedHTTPCookieStorage()
for cookie in storage.cookies  as! [NSHTTPCookie]
{
    storage.deleteCookie(cookie)
}
NSUserDefaults.standardUserDefaults()

Answer 5

以下是如何使用UIWebView的委托函数捕获cookie的完整答案：

func webViewDidFinishLoad(_ webView: UIWebView) {
    if let cookies = HTTPCookieStorage.shared.cookies {
        for cookie in cookies {
            print("cookie= (cookie)")
        }
    }
}

请记住，cookie 将另存为默认值，此委托函数调用完成 Web 视图加载的每个移动。(它也在 Swift 3.0.1 中更新(

Answer 6

如果您正在使用 swift 4，那么此代码将禁用 cookie 并删除 URL 缓存。

let cookieJar : HTTPCookieStorage = HTTPCookieStorage.shared
for cookie in cookieJar.cookies! as [HTTPCookie]{
    NSLog("cookie.domain = %@", cookie.domain)
     cookieJar.deleteCookie(cookie)
}
URLCache.shared.removeAllCachedResponses() 
URLCache.shared.diskCapacity = 0 
URLCache.shared.memoryCapacity = 0

Answer 7

swift 3

    let storage = HTTPCookieStorage.shared
    for cookie in storage.cookies! {
        storage.deleteCookie(cookie)
    }

Answer 8

Logout for api VKontakte， swift 3+

let dataStore = WKWebsiteDataStore.default()
dataStore.fetchDataRecords(ofTypes: WKWebsiteDataStore.allWebsiteDataTypes()) { (records) in
    for record in records {
        if record.displayName.contains("facebook") {
            dataStore.removeData(ofTypes: WKWebsiteDataStore.allWebsiteDataTypes(), for: [record], completionHandler: {
                print("Deleted: " + record.displayName);
            })
        }
    }
}