如何按范围在 Redis 列表中添加自定义对象列表

Question

有什么方法可以在 redis 中添加我的项目列表 Stackexchange.Redis.Extensions。我知道我可以使用 SetAdd 但它会一个接一个地插入项目。我想插入范围。我还想要按范围检索项目。即通过开始和结束索引在下面的代码中，我能够通过块提取列表，但它 returns RedisValue[]。我怎样才能将它转换成我的列表

备注

  public static List<T> GetListItemRange<T>(string key, int start, int chunksize) where T : class
    {
        List<T> obj = default(List<T>);
        try
        {
            if (Muxer != null && Muxer.IsConnected && Muxer.GetDatabase() != null)
            {
                var cacheClient = new StackExchangeRedisCacheClient(Muxer, new NewtonsoftSerializer());
                var values = cacheClient.Database.ListRange(key, start, (start + chunksize - 1));
                obj = Array.ConvertAll(values, x => JsonConvert.DeserializeObject<T>(x)).ToList();
            }
        }
        catch (Exception ex)
        {
            Logger.Fatal(ex.Message, ex);
        }
        return obj;
    }

而目前的列表添加部分是

public static bool InsertListItemRange<T>(string key, List<T> obj) where T : class
        {
            bool result = false;
            try
            {
                if (Muxer != null && Muxer.IsConnected && Muxer.GetDatabase() != null)
                {
                    var cacheClient = new StackExchangeRedisCacheClient(Muxer, new NewtonsoftSerializer());
                    foreach (var o in obj)
                    {
                        result = cacheClient.ListAddToLeft(key, o) > 0;    
                    }                    
                }
            }
            catch (Exception ex)
            {
                Logger.Fatal(ex.Message, ex);
            }
            return result;
        }

Answer 1

我将列表插入 Redis 的代码是

public static bool InsertListItemRange<T>(string key, List<T> obj, int chunksize = 25000) where T : class
        {
            bool result = false;
            try
            {
                if (Muxer != null && Muxer.IsConnected && Muxer.GetDatabase() != null)
                {
                    var cacheClient = new StackExchangeRedisCacheClient(Muxer, new NewtonsoftSerializer());

                    List<RedisValue> lst  = new List<RedisValue>();

                    foreach (var o in obj)
                    {
                       lst.Add(JsonConvert.SerializeObject(o));   
                    }


                    result = cacheClient.Database.ListLeftPush(key, lst.ToArray()) > 0;


                    if (LogRedisRelatedActivities)
                    {
                        Logger.InfoFormat("InsertItem => Key: {0}, Result: {1}", key, result);
                    }
                }
            }
            catch (Exception ex)
            {
                Logger.Fatal(ex.Message, ex);
            }
            return result;
        }

也用于通过范围获取我的代码是

public static List<T> GetListItemRange<T>(string key, int start, int chunksize) where T : class
        {
            List<T> obj = default(List<T>);
            try
            {
                if (Muxer != null && Muxer.IsConnected && Muxer.GetDatabase() != null)
                {
                    var cacheClient = new StackExchangeRedisCacheClient(Muxer, new NewtonsoftSerializer());
                    var redisValues = cacheClient.Database.ListRange(key, start, (start + chunksize - 1));
                    if (redisValues.Length > 0)
                    {
                        obj = Array.ConvertAll(redisValues, value => JsonConvert.DeserializeObject<T>(value)).ToList();
                    }
                }
            }
            catch (Exception ex)
            {
                Logger.Fatal(ex.Message, ex);
            }
            return obj;
        }

如何按范围在 Redis 列表中添加自定义对象列表

How can i add List of custom object in Redis by range redis List

c#

caching

redis

stackexchange.redis

.net-4.5.2