接口加Cookie，Session

if ([url containsString:@"login"]) {

        // 登录接口：移除本地存储的Cookie

        [[NSUserDefaults standardUserDefaults] removeObjectForKey:@"NSUserDefaults_Cookie"];

        [[NSUserDefaults standardUserDefaults] synchronize];

        // 登录接口：设置请求Cookie为空

        [self.serverManager.requestSerializer setValue:@"" forHTTPHeaderField:@"Cookie"];

    }else{

        // 非登录接口：设置Cookie为之前本地存储的Cookie

        [self setManagerCookie];

    }