iOS中关于Cookie验证登录状态
时间:2021-05-02 08:17:52|栏目:iOS代码|点击: 次
1、第一次进入应用,登录获取Cookie,此时如果用到的是AFN去获取接口数据,Cookie已经写入了,所以无需处理,每次请求的时候,会自动将该cookie传给后台去验证
2、将Cookie缓存到本地:
NSData *cookiesData = [NSKeyedArchiver archivedDataWithRootObject: [[NSHTTPCookieStorage sharedHTTPCookieStorage] cookies]]; NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults]; [defaults setObject: cookiesData forKey:@"Cookie"]; [defaults synchronize];
3、当第二次进入应用的时候,先判断NSUserDefault是否有缓存的Cookie,如果有,需要将cookie写入,然后进入应用
NSArray *cookies = [NSKeyedUnarchiver unarchiveObjectWithData:[[NSUserDefaults standardUserDefaults] objectForKey:@"Cookie"]]; NSHTTPCookieStorage * cookieStorage = [NSHTTPCookieStorage sharedHTTPCookieStorage]; for (NSHTTPCookie * cookie in cookies){ [cookieStorage setCookie: cookie]; }
4、当用户选择退出登录,需要清除缓存中的cookie,同时要将NSUserDefault中的Cookie删除
(1)清除请求头中的Cookie:
NSHTTPCookieStorage *manager = [NSHTTPCookieStorage sharedHTTPCookieStorage]; NSArray *cookieStorage = [[NSHTTPCookieStorage sharedHTTPCookieStorage] cookies]; for (NSHTTPCookie *cookie in cookieStorage) { [manager deleteCookie:cookie]; }
(2)清除NSUserDefault中的Cookie
[[NSUserDefaults standardUserDefaults] removeObjectForKey:@"Cookie"]; [defaults synchronize];
注意:关于Cookie还有有效期,就看后台怎么定义,前端只要判断是否过了有效期,如果过了有效期,如果过了有效期,就需要用户重新登录,反之则不需要。