遇到这个问题而不愿意实施自定义cookie管理系统。
似乎某些隐藏级别的iOS实施的HTTP无法正确管理无会话cookie。每当HTTP响应设置或删除cookie时,立即检查NSHTTPCookieStorage cookie将产生预期结果并指示正确的sessionOnly值。
但是,如果应用程序在响应更新cookie后立即退出,则重新启动时,这些sessionOnly = FALSE cookie将恢复为某个先前状态,并且最新更新将丢失。
是否通过响应标头或NSHTTPCookieStorage setCookie设置/删除cookie:没有区别。
一些缓存/同步伏都教必须在幕后进行。 cookie变为持久化所需的时间最长可达5秒。
那里有谁或者可以指出对这种行为的明确解释?这是一个简单明了的bug吗?还是一些我无法理解的无证特征?
您可以使用一些代码重现:
- (void)applicationDidBecomeActive:(UIApplication *)application
{
[[NSHTTPCookieStorage sharedHTTPCookieStorage] setCookieAcceptPolicy:NSHTTPCookieAcceptPolicyAlways];
NSHTTPCookie *cookie;
for (cookie in [NSHTTPCookieStorage sharedHTTPCookieStorage].cookies) {
NSLog(@"%@=%@", cookie.name, cookie.value);
}
NSMutableDictionary *cookieProperties = [NSMutableDictionary dictionary];
[cookieProperties setObject:@"testCookie" forKey:NSHTTPCookieName];
[cookieProperties setObject:[NSString stringWithFormat:@"%f", [[NSDate date] timeIntervalSince1970]] forKey:NSHTTPCookieValue];
[cookieProperties setObject:@"www.example.com" forKey:NSHTTPCookieDomain];
[cookieProperties setObject:@"www.example.com" forKey:NSHTTPCookieOriginURL];
[cookieProperties setObject:@"/" forKey:NSHTTPCookiePath];
[cookieProperties setObject:@"0" forKey:NSHTTPCookieVersion];
// set expiration to one month from now
[cookieProperties setObject:[[NSDate date] dateByAddingTimeInterval:2629743] forKey:NSHTTPCookieExpires];
cookie = [NSHTTPCookie cookieWithProperties:cookieProperties];
[[NSHTTPCookieStorage sharedHTTPCookieStorage] setCookie:cookie];
}
此代码应在每次启动时输出新值。相反,您会看到,如果您快速退出应用程序,则值将保持不变。
一些可能相关的堆栈溢出问题:
iphone NSHTTPCookieStorage avaible on app reopen?
iPhone: NSHTTPCookie is not saved across app restarts
答案 0 :(得分:25)
我认为答案在于one与你问题相关的SO帖子:
我做了一个示例项目来重现这个问题 - 并且发现了它 只有当应用程序收到SIGKILL信号时才会发生,例如 调试器在Xcode中停止。在我的实验中,未经处理 异常,崩溃,exit()和abort()不会导致 NSHTPPCookieStorage松散数据。
因为这看起来只是一个调试问题(只有在使用时才会发生) 调试器),我关闭了之前填充的雷达。
您可以通过正常重新启动手机并观察NSHTTPCookieStorage的所有更改是否已正确保留并重新加载来测试。
答案 1 :(得分:14)
我也遇到了同样的问题,但我找到了解决方案。我保存了由浏览器创建的cookie,然后在应用程序重新启动时重新创建它们。
1)在uiwebview创建cookie时保存cookie。
NSMutableArray *cookieArray = [[NSMutableArray alloc] init];
for (NSHTTPCookie *cookie in [[NSHTTPCookieStorage sharedHTTPCookieStorage] cookies]) {
[cookieArray addObject:cookie.name];
NSMutableDictionary *cookieProperties = [NSMutableDictionary dictionary];
[cookieProperties setObject:cookie.name forKey:NSHTTPCookieName];
[cookieProperties setObject:cookie.value forKey:NSHTTPCookieValue];
[cookieProperties setObject:cookie.domain forKey:NSHTTPCookieDomain];
[cookieProperties setObject:cookie.path forKey:NSHTTPCookiePath];
[cookieProperties setObject:[NSNumber numberWithInt:cookie.version] forKey:NSHTTPCookieVersion];
[cookieProperties setObject:[[NSDate date] dateByAddingTimeInterval:2629743] forKey:NSHTTPCookieExpires];
[[NSUserDefaults standardUserDefaults] setValue:cookieProperties forKey:cookie.name];
[[NSUserDefaults standardUserDefaults] synchronize];
}
[[NSUserDefaults standardUserDefaults] setValue:cookieArray forKey:@"cookieArray"];
[[NSUserDefaults standardUserDefaults] synchronize];
2)现在重新启动它们作为app restarts:
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
NSMutableArray* cookieDictionary = [[NSUserDefaults standardUserDefaults] valueForKey:@"cookieArray"];
NSLog(@"cookie dictionary found is %@",cookieDictionary);
for (int i=0; i < cookieDictionary.count; i++)
{
NSLog(@"cookie found is %@",[cookieDictionary objectAtIndex:i]);
NSMutableDictionary* cookieDictionary1 = [[NSUserDefaults standardUserDefaults] valueForKey:[cookieDictionary objectAtIndex:i]];
NSHTTPCookie *cookie = [NSHTTPCookie cookieWithProperties:cookieDictionary1];
[[NSHTTPCookieStorage sharedHTTPCookieStorage] setCookie:cookie];
}
// other code
}
感谢
答案 2 :(得分:4)
听起来像底层的NSUserDefaults风格的“同步”调用是必需的。我认为您最好的选择是在标准NSUserDefaults中单独管理所有应用程序的cookie,并在启动时将任何缺失的cookie同步到NSHTTPCookieStorage中。或者如果你有勇气,看看是否有一些私人同步方法:)