sandbox for model

- (void)encodeWithCoder:(NSCoder *)encoder
{
    [encoder encodeObject:_loginModeljsessionid forKey:@"jsessionid"];
    [encoder encodeObject:_loginModellogin forKey:@"login"];
    [encoder encodeObject:_loginModelresponsetime forKey:@"responsetime"];
    [encoder encodeObject:_loginModeluserid forKey:@"userid"];
}
- (id)initWithCoder:(NSCoder *)aDecoder {
    if (self = [super init]) {
        _loginModeljsessionid = [aDecoder decodeObjectForKey:@"jsessionid"];
        _loginModellogin = [aDecoder decodeObjectForKey:@"login"];
        _loginModelresponsetime = [aDecoder decodeObjectForKey:@"responsetime"];
        _loginModeluserid = [aDecoder decodeObjectForKey:@"userid"];
    }
    return self;

}

            NSData * data = [NSKeyedArchiver archivedDataWithRootObject:self.loginModel];
            [PKGlobleSettings saveObject:data forKey:@"loginModel"];