C# 通过ServiceStack 操作Redis——String类型的使用及示例

1.引用Nuget包 ServiceStack.Redis

我这里就用别人已经封装好的Reids操作类来和大家一起参考了下，看看怎么使用ServiceStack.Redis 操作Redis数据

RedisConfigInfo--redis配置文件信息

    /// <summary>
    /// redis配置文件信息
    /// 也可以放到配置文件去
    /// </summary>
    public sealed class RedisConfigInfo
    {
        /// <summary>
        /// 可写的Redis链接地址
        /// format:ip1,ip2
        /// 
        /// 默认6379端口
        /// </summary>
        public string WriteServerList = "127.0.0.1:6379";
        /// <summary>
        /// 可读的Redis链接地址
        /// format:ip1,ip2
        /// </summary>
        public string ReadServerList = "127.0.0.1:6379";
        /// <summary>
        /// 最大写链接数
        /// </summary>
        public int MaxWritePoolSize = 60;
        /// <summary>
        /// 最大读链接数
        /// </summary>
        public int MaxReadPoolSize = 60;
        /// <summary>
        /// 本地缓存到期时间，单位:秒
        /// </summary>
        public int LocalCacheTime = 180;
        /// <summary>
        /// 自动重启
        /// </summary>
        public bool AutoStart = true;
        /// <summary>
        /// 是否记录日志,该设置仅用于排查redis运行时出现的问题,
        /// 如redis工作正常,请关闭该项
        /// </summary>
        public bool RecordeLog = false;
    }

RedisManager --Redis管理中心   创建Redis链接

    /// <summary>
    /// Redis管理中心   创建Redis链接
    /// </summary>
    public class RedisManager
    {
        /// <summary>
        /// redis配置文件信息
        /// </summary>
        private static RedisConfigInfo RedisConfigInfo = new RedisConfigInfo();

        /// <summary>
        /// Redis客户端池化管理
        /// </summary>
        private static PooledRedisClientManager prcManager;

        /// <summary>
        /// 静态构造方法，初始化链接池管理对象
        /// </summary>
        static RedisManager()
        {
            CreateManager();
        }

        /// <summary>
        /// 创建链接池管理对象
        /// </summary>
        private static void CreateManager()
        {
            string[] WriteServerConStr = RedisConfigInfo.WriteServerList.Split(',');
            string[] ReadServerConStr = RedisConfigInfo.ReadServerList.Split(',');
            prcManager = new PooledRedisClientManager(ReadServerConStr, WriteServerConStr,
                             new RedisClientManagerConfig
                             {
                                 MaxWritePoolSize = RedisConfigInfo.MaxWritePoolSize,
                                 MaxReadPoolSize = RedisConfigInfo.MaxReadPoolSize,
                                 AutoStart = RedisConfigInfo.AutoStart,
                             });
        }

        /// <summary>
        /// 客户端缓存操作对象
        /// </summary>
        public static IRedisClient GetClient()
        {
            return prcManager.GetClient();
        }
    }

RedisBase-- 是redis操作的基类，继承自IDisposable接口，主要用于释放内存

/// <summary>
    /// RedisBase类，是redis操作的基类，继承自IDisposable接口，主要用于释放内存
    /// </summary>
    public abstract class RedisBase : IDisposable
    {
        public IRedisClient iClient { get; private set; }
        /// <summary>
        /// 构造时完成链接的打开
        /// </summary>
        public RedisBase()
        { 
            iClient = RedisManager.GetClient();
        }

        //public static IRedisClient iClient { get; private set; }
        //static RedisBase()
        //{
        //    iClient = RedisManager.GetClient();
        //}


        private bool _disposed = false;
        protected virtual void Dispose(bool disposing)
        {
            if (!this._disposed)
            {
                if (disposing)
                {
                    iClient.Dispose();
                    iClient = null;
                }
            }
            this._disposed = true;
        }
        public void Dispose()
        {
            Dispose(true);
            GC.SuppressFinalize(this);
        }

        public void Transcation()
        {
            using (IRedisTransaction irt = this.iClient.CreateTransaction())
            {
                try
                {
                    irt.QueueCommand(r => r.Set("key", 20));
                    irt.QueueCommand(r => r.Increment("key", 1));
                    irt.Commit(); // 提交事务
                }
                catch (Exception ex)
                {
                    irt.Rollback();
                    throw ex;
                }
            }
        }


        /// <summary>
        /// 清除全部数据 请小心
        /// </summary>
        public virtual void FlushAll()
        {
            iClient.FlushAll();
        }

        /// <summary>
        /// 保存数据DB文件到硬盘
        /// </summary>
        public void Save()
        {
            iClient.Save();//阻塞式save
        }

        /// <summary>
        /// 异步保存数据DB文件到硬盘
        /// </summary>
        public void SaveAsync()
        {
            iClient.SaveAsync();//异步save
        }
    }

RedisStringService--String类型操作帮助类

    /// <summary>
    /// key-value 键值对:value可以是序列化的数据
    /// </summary>
    public class RedisStringService : RedisBase
    {
        #region 赋值
        /// <summary>
        /// 设置key的value
        /// </summary>
        public bool Set<T>(string key, T value)
        {
            //iClient.Db =2;
            return base.iClient.Set<T>(key, value);
        }
        /// <summary>
        /// 设置key的value并设置过期时间
        /// </summary>
        public bool Set<T>(string key, T value, DateTime dt)
        {
            //iClient.Db = 2;
            return base.iClient.Set<T>(key, value, dt);
        }
        /// <summary>
        /// 设置key的value并设置过期时间
        /// </summary>
        public bool Set<T>(string key, T value, TimeSpan sp)
        {
            //iClient.Db = 2;
            return base.iClient.Set<T>(key, value, sp);
        }
        /// <summary>
        /// 设置多个key/value  可以一次保存多个key value ---多个key value 不是分多次，是一个独立的命令；
        /// </summary>
        public void Set(Dictionary<string, string> dic)
        {
            //iClient.Db = 2;
            base.iClient.SetAll(dic);
        }

        #endregion

        #region 追加
        /// <summary>
        /// 在原有key的value值之后追加value,没有就新增一项
        /// </summary>
        public long Append(string key, string value)
        {
            return base.iClient.AppendToValue(key, value);
        }
        #endregion

        #region 获取值
        /// <summary>
        /// 获取key的value值
        /// </summary>
        public string Get(string key)
        {
            return base.iClient.GetValue(key);
        }
        /// <summary>
        /// 获取多个key的value值
        /// </summary>
        public List<string> Get(List<string> keys)
        {
            return base.iClient.GetValues(keys);
        }
        /// <summary>
        /// 获取多个key的value值
        /// </summary>
        public List<T> Get<T>(List<string> keys)
        {
            return base.iClient.GetValues<T>(keys);
        }
        #endregion

        #region 获取旧值赋上新值
        /// <summary>
        /// 获取旧值赋上新值
        /// </summary>
        public string GetAndSetValue(string key, string value)
        {
            return base.iClient.GetAndSetValue(key, value);
        }
        #endregion

        #region 辅助方法
        /// <summary>
        /// 获取值的长度
        /// </summary>
        public long GetLength(string key)
        {
            return base.iClient.GetStringCount(key);
        }
        /// <summary>
        /// 自增1，返回自增后的值   保存的是10   调用后，+1   返回11
        /// </summary>
        public long Incr(string key)
        {
            return base.iClient.IncrementValue(key);
        }
        /// <summary>
        /// 自增count，返回自增后的值   自定义自增的步长值
        /// </summary>
        public long IncrBy(string key, int count)
        {
            return base.iClient.IncrementValueBy(key, count);
        }
        /// <summary>
        /// 自减1，返回自减后的值，Redis操作是单线程操作；不会出现超卖的情况
        /// </summary>
        public long Decr(string key)
        {
            return base.iClient.DecrementValue(key);
        }
        /// <summary>
        /// 自减count ，返回自减后的值
        /// </summary>
        /// <param name="key"></param>
        /// <param name="count"></param>
        /// <returns></returns>
        public long DecrBy(string key, int count)
        {
            return base.iClient.DecrementValueBy(key, count);
        }
        #endregion
    }

nuget包是外国人写的，在国内并没有完整的中文文档，也没有专门的人来翻译、封装它，所以上面的代码方法不是很全，还有很多api方法需要自己去官网找然后自己封装。

在这里，上面的封装我就放一边，还是给大家演示ServiceStack原生的API如何使用

2. string 类型的使用

                 public static RedisClient client = new RedisClient("127.0.0.1", 6379);

                //1.存入键值对
                bool a = client.Set("key_name", "value_11");
                //2. 根据key获取值
                string data1= client.GetValue("key_name");
                //3. 在原有的value上进行追加
                long data2 = client.AppendToValue("key_name", "value_11");
               // 4.获取值的长度
                var data3=client.GetStringCount("key_name");
                //5. 数值自增/减，返回自增、自减后的值
                client.Set("小明分数", 100);
                //自增20，可以自增负值
               var data4= client.IncrementValueBy("小明分数", 20);
                //自减50
                var data5 = client.DecrementValueBy("小明分数", 50);
                //6. 插入实体和读取实体
                UserInfo userInfo = new UserInfo() { Id = 3, Age = 50, Name = "zxl", Pwd = "123456" };
                client.Set("UserInfo_Id_3", userInfo);           
                UserInfo data6 = client.Get<UserInfo>("UserInfo_Id_3");
                //7. 一次性添加多个key-value集合
                Dictionary<string, string> dic = new Dictionary<string, string>() {
                    { "101", Guid.NewGuid().ToString("N")},
                    { "102", Guid.NewGuid().ToString("N")},
                    { "103", Guid.NewGuid().ToString("N")},
                    { "104", Guid.NewGuid().ToString("N")},
                    { "105", Guid.NewGuid().ToString("N")},
                    { "106", Guid.NewGuid().ToString("N")}
                };              
                client.SetAll(dic);
                //8.获取多个key的 value值集合
                List<string> keys = new List<string>(){ "101", "103", "105" };
                List<string> data8=  client.GetValues(keys);

 

                //9. 重命名key
                client.Rename("106", "1066");
                //10. 设置key的过期时间(30秒后自动销毁)
                bool b2= client.Expire("102", 30);

                //11. 删除单个key
                bool d1 = client.Remove("101");//删除成功，返回true
                bool d2 = client.Remove("ffff"); //删除不存在的数据，返回false

//12. 删除多个key
                IEnumerable<string> delete_keys = new List<string> { "101", "103", "105" };
                client.RemoveAll(delete_keys);

//13.清除全部数据 请小心
client.FlushAll();