删除 cookie UIWebView

Question

如何删除UIWebView中的cookie？此代码：

NSArray* cookies = [[NSHTTPCookieStorage sharedHTTPCookieStorage] cookies];
for (NSHTTPCookie *cookie in cookies) {
 [cookies deleteCookie:cookie];
}

删除 cookie，但是当我重新启动应用程序时，NSHTTPCookieStorage 中有相同的 cookie。有时这段代码可以工作，但我想让它每次都能工作。如何解决这个问题？

Answer 1

尝试这样的事情：

NSHTTPCookieStorage* cookies = [NSHTTPCookieStorage sharedHTTPCookieStorage];
        NSArray* facebookCookies = [cookies cookiesForURL:
                                    [NSURL URLWithString:@"http://login.facebook.com"]];
        for (NSHTTPCookie* cookie in facebookCookies) {
            [cookies deleteCookie:cookie];
        }

Answer 2

这对我有用：

NSHTTPCookieStorage* cookies = [NSHTTPCookieStorage sharedHTTPCookieStorage];

NSArray *allCookies = [cookies cookies];

for(NSHTTPCookie *cookie in allCookies) {
    if([[cookie domain] rangeOfString:@"facebook.com"].location != NSNotFound) {
        [cookies deleteCookie:cookie];
    }
}

Answer 3

由于某些奇怪的原因，删除单个 cookie 并不总是有效。要真正删除 cookie，您需要存储非特定 cookie，然后重新加载它们，然后迭代所有 cookie 并删除它们，如下所示

NSArray *cookies = [[NSHTTPCookieStorage sharedHTTPCookieStorage] cookies];
   if (cookies != nil && cookies.count > 0) {
       for (NSHTTPCookie *cookie in cookies) {
           [[NSHTTPCookieStorage sharedHTTPCookieStorage] deleteCookie:cookie];
       }
       [[NSUserDefaults standardUserDefaults] synchronize];
   }

Answer 4

与前一个类似但更简单：

NSHTTPCookieStorage* cookies = [NSHTTPCookieStorage sharedHTTPCookieStorage];

NSArray *allCookies = [cookies cookies];

for(NSHTTPCookie *cookie in allCookies) {
    if([[cookie domain] contains:@"facebook.com"]) {
        [cookies deleteCookie:cookie];
    }
}

“最佳答案”很糟糕，因为它允许删除指定具体 URL 的 cookie。例如，您删除了“login.facebook.com”的 cookie，但您可能会错过“www.login.facebook.com”

Answer 5

确保最后调用：

[[NSUserDefaults standardUserDefaults]同步];

...就像一个魅力...