AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
    manager.responseSerializer = [AFCompoundResponseSerializer serializer];
[manager POST:strUrl parameters:parameters progress:^(NSProgress * _Nonnull uploadProgress) {
        
    } success:^(NSURLSessionDataTask * _Nonnull task, id  _Nullable responseObject) {
        //获取cookie方法1
        NSArray *cookies = [NSHTTPCookie cookiesWithResponseHeaderFields:fields forURL:url];
        for (NSHTTPCookie *cookie in cookies) {
            NSLog(@"cookie,name:= %@,valuie = %@",cookie.name,cookie.value);
        }
        //        //获取cookie方法2
        //        NSString *cookies2 = [((NSHTTPURLResponse*)task.response) valueForKey:@"Set-Cookie"];
        //        NSLog(@"cookies2 = %@",[cookies2 description]);
        NSDictionary *fields = ((NSHTTPURLResponse*)task.response).allHeaderFields;
        NSLog(@"fields = %@",[fields description]);