- (void)encodeWithCoder:(NSCoder *)encoder {
    [encoder encodeObject:self.test forKey:@"string"];
    [encoder encodeObject:self.surname forKey:@"surname"];
}

-(NSDictionary *)dictionaryWithModel:(Model *)model{

    NSDictionary *dictionary = @{
                                 @"dict":[model.innerModel dictionaryWithModel:model.innerModel],
                                 @"string":self.test
                                 };

    return dictionary;
}

NSUserDefaults *currentDefaults = [NSUserDefaults standardUserDefaults];
NSData *data = [NSKeyedArchiver archivedDataWithRootObject:savingbean];
[currentDefaults setObject:data forKey:@"DATA"];
[currentDefaults synchronize];

NSData *data = [currentDefaults objectForKey:@"DATA"];
SavingBean *token = [NSKeyedUnarchiver unarchiveObjectWithData:data];

- (void)encodeWithCoder:(NSCoder *)encoder
{
    [encoder encodeObject:self.userName==nil?@"":self.userName forKey: @"userName"];
    [encoder encodeObject:self.passWord==nil?@"":self.passWord forKey: @"passWord"];
}

-(id)initWithCoder:(NSCoder *)decoder
{
    self = [super init];
    if(self)
    {
        self.userName = [decoder decodeObjectForKey: @"userName"];
        self.passWord = [decoder decodeObjectForKey: @"passWord"];
    }
    return self;
}