Redis学习系列五Set(集合)

        /// <summary>
        /// 异步向Set(集合)中添加键值对
        /// </summary>
        /// <param name="key"></param>
        /// <param name="value"></param>
        /// <returns></returns>
        public static async Task<bool> SetAddAsync(RedisKey key, RedisValue value)
        {
            var db = GetDatabase();
            return await db.SetAddAsync(key, value);
        }

        /// <summary>
        /// 异步获取对应键的所有成员,无序
        /// </summary>
        /// <param name="key"></param>
        /// <returns></returns>
        public static async Task<RedisValue[]> SetMembersAsync(RedisKey key)
        {
            var db = GetDatabase();
            return await db.SetMembersAsync(key);
        }

    class Program
    {
        static Program()
        {
            //链式配置Redis
            AppConfiguration.Current.ConfigureRedis<RedisConfig>();
        }

        static void Main(string[] args)
        {
            StringSetGetAsync();
            Console.ReadKey();
        }

        static async void StringSetGetAsync()
        {
            var key = "测试商品Id";
            var userId = Guid.NewGuid().ToString();
            try
            {
                if (!await RedisClient.SetAddAsync(key, userId))
                {
                    //注:这里最好不要抛异常,会影响后续操作,写日志更合理
                    Console.WriteLine("向Redis Set集合插入元素失败,同一个商品出现了多个中奖用户!");
                }
                //模拟重复插入
                if (!await RedisClient.SetAddAsync(key, userId))
                {
                    Console.WriteLine("向Redis Set集合插入元素失败,同一个商品出现了多个中奖用户!");
                }
                
                //模拟继续插入
                if (!await RedisClient.SetAddAsync(key, Guid.NewGuid().ToString()))
                {
                    Console.WriteLine("向Redis Set集合插入元素失败,同一个商品出现了多个中奖用户!");
                }

                if (!await RedisClient.SetAddAsync(key, Guid.NewGuid().ToString()))
                {
                    Console.WriteLine("向Redis Set集合插入元素失败,同一个商品出现了多个中奖用户!");
                }

                //获取指定键的所有成员,并输出
                var members = await RedisClient.SetMembersAsync(key);
                foreach (var member in members)
                {
                    Console.WriteLine(member);
                }
            }
            catch (Exception ex)
            {
                //记录日志
                Console.WriteLine(ex.Message);
            }
                
        }
    }