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Redis—.Net中的使用

时间：2019-11-09 19:19:51      阅读：70      评论：0      收藏：0      [点我收藏+]

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StackExchange.Redis使用以及封装

来源：http://www.cnblogs.com/qtqq/p/5951201.html，https://www.cnblogs.com/xsj1989/p/9104185.html

Redis安装：http://www.runoob.com/redis/redis-install.html

Configuration:https://www.cnblogs.com/ArvinZhao/p/6007043.html

Redis可视化工具Redis Desktop Manager：https://redisdesktop.com/download

千万要记住，给Redis设置访问密码，Redis的连接字符串中也要设置好密码。

Redis设置密码：https://blog.csdn.net/qq_35357001/article/details/56835919

启动服务：dos中 cd Redis安装目录，运行 redis-server.exe redis.windows.conf；

启动命令：dos中 cd Redis安装目录，运行 redis-cli.exe -h 127.0.0.1 -p 6379；

设置密码：config set requirepass xsj10011 注意：密码尽量设置长一点

获取密码：config get requirepass  注意：获取密码之前需要先验证密码，不然获取不到

验证密码：auth xsj10011

密码改变之后，代码中的连接字符串里的密码也要对应改变，不然操作不了Redis。对应的可视化工具里的密码也要改。

1.打开VS的NuGet》搜索：StackExchange.Redis，安装到项目中

2.配置文件：

技术图片 
<appSettings>
    <!-- 系统前缀 -->
    <add key="redisKey" value="jay"/>
  </appSettings>
  <connectionStrings>
    <!-- Redis连接字符串 -->
    <add name="RedisExchangeHosts" connectionString="127.0.0.1:6379,allowadmin=true,password=xsj10011,keepAlive=180"/>
  </connectionStrings>

web.config
View Code

3.封装好的Redis操作类（感谢前辈的努力，让我们可以直接拿来用，恕我懒惰）：

技术图片 
using StackExchange.Redis;
using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Configuration;
using System.Linq;
using System.Web;

namespace RedisTest.RedisCommon
{
    /// <summary>
    /// ConnectionMultiplexer对象管理帮助类
    /// </summary>
    public static class RedisConnectionHelp
    {
        //配置：系统自定义Key前缀
        public static readonly string SysCustomKey = ConfigurationManager.AppSettings["redisKey"] ?? "";
        //配置：Redis连接字符串：127.0.0.1:6379,allowadmin=true
        private static readonly string RedisConnectionString = ConfigurationManager.ConnectionStrings["RedisExchangeHosts"].ConnectionString;

        private static readonly object Locker = new object();
        private static ConnectionMultiplexer _instance;
        private static readonly ConcurrentDictionary<string, ConnectionMultiplexer> ConnectionCache = new ConcurrentDictionary<string, ConnectionMultiplexer>();

        /// <summary>
        /// 单例获取
        /// </summary>
        public static ConnectionMultiplexer Instance
        {
            get
            {
                if (_instance == null)
                {
                    lock (Locker)
                    {
                        if (_instance == null || !_instance.IsConnected)
                        {
                            _instance = GetManager();
                        }
                    }
                }
                return _instance;
            }
        }

        /// <summary>
        /// 缓存获取
        /// </summary>
        /// <param name="connectionString"></param>
        /// <returns></returns>
        public static ConnectionMultiplexer GetConnectionMultiplexer(string connectionString)
        {
            if (!ConnectionCache.ContainsKey(connectionString))
            {
                ConnectionCache[connectionString] = GetManager(connectionString);
            }
            return ConnectionCache[connectionString];
        }

        private static ConnectionMultiplexer GetManager(string connectionString = null)
        {
            connectionString = connectionString ?? RedisConnectionString;
            var connect = ConnectionMultiplexer.Connect(connectionString);

            //注册如下事件
            connect.ConnectionFailed += MuxerConnectionFailed;
            connect.ConnectionRestored += MuxerConnectionRestored;
            connect.ErrorMessage += MuxerErrorMessage;
            connect.ConfigurationChanged += MuxerConfigurationChanged;
            connect.HashSlotMoved += MuxerHashSlotMoved;
            connect.InternalError += MuxerInternalError;

            return connect;
        }

        #region 事件

        /// <summary>
        /// 配置更改时
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private static void MuxerConfigurationChanged(object sender, EndPointEventArgs e)
        {
            Console.WriteLine("Configuration changed: " + e.EndPoint);
        }

        /// <summary>
        /// 发生错误时
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private static void MuxerErrorMessage(object sender, RedisErrorEventArgs e)
        {
            Console.WriteLine("ErrorMessage: " + e.Message);
        }

        /// <summary>
        /// 重新建立连接之前的错误
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private static void MuxerConnectionRestored(object sender, ConnectionFailedEventArgs e)
        {
            Console.WriteLine("ConnectionRestored: " + e.EndPoint);
        }

        /// <summary>
        /// 连接失败 ， 如果重新连接成功你将不会收到这个通知
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private static void MuxerConnectionFailed(object sender, ConnectionFailedEventArgs e)
        {
            Console.WriteLine("重新连接：Endpoint failed: " + e.EndPoint + ", " + e.FailureType + (e.Exception == null ? "" : (", " + e.Exception.Message)));
        }

        /// <summary>
        /// 更改集群
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private static void MuxerHashSlotMoved(object sender, HashSlotMovedEventArgs e)
        {
            Console.WriteLine("HashSlotMoved:NewEndPoint" + e.NewEndPoint + ", OldEndPoint" + e.OldEndPoint);
        }

        /// <summary>
        /// redis类库错误
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private static void MuxerInternalError(object sender, InternalErrorEventArgs e)
        {
            Console.WriteLine("InternalError:Message" + e.Exception.Message);
        }

        #endregion 事件
    }
}

RedisConnectionHelp
View Code
技术图片 
using Newtonsoft.Json;
using StackExchange.Redis;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using System.Web;

namespace RedisTest.RedisCommon
{
    public class RedisHelper
    {
        private int DbNum { get; }
        private readonly ConnectionMultiplexer _conn;
        public string CustomKey;

        #region 构造函数

        public RedisHelper(int dbNum = 0)
                : this(dbNum, null)
        {
        }

        public RedisHelper(int dbNum, string readWriteHosts)
        {
            DbNum = dbNum;
            _conn =
                string.IsNullOrWhiteSpace(readWriteHosts) ?
                RedisConnectionHelp.Instance :
                RedisConnectionHelp.GetConnectionMultiplexer(readWriteHosts);
        }
        #endregion

        #region 辅助方法

        private string AddSysCustomKey(string oldKey)
        {
            var prefixKey = CustomKey ?? RedisConnectionHelp.SysCustomKey;
            return prefixKey + oldKey;
        }

        private T Do<T>(Func<IDatabase, T> func)
        {
            var database = _conn.GetDatabase(DbNum);
            return func(database);
        }

        private string ConvertJson<T>(T value)
        {
            string result = value is string ? value.ToString() : JsonConvert.SerializeObject(value);
            return result;
        }

        private T ConvertObj<T>(RedisValue value)
        {
            return JsonConvert.DeserializeObject<T>(value);
        }

        private List<T> ConvetList<T>(RedisValue[] values)
        {
            List<T> result = new List<T>();
            foreach (var item in values)
            {
                var model = ConvertObj<T>(item);
                result.Add(model);
            }
            return result;
        }

        private RedisKey[] ConvertRedisKeys(List<string> redisKeys)
        {
            return redisKeys.Select(redisKey => (RedisKey)redisKey).ToArray();
        }

        #endregion 辅助方法

        #region String

        #region 同步方法

        /// <summary>
        /// 保存单个key value
        /// </summary>
        /// <param name="key">Redis Key</param>
        /// <param name="value">保存的值</param>
        /// <param name="expiry">过期时间</param>
        /// <returns></returns>
        public bool StringSet(string key, string value, TimeSpan? expiry = default(TimeSpan?))
        {
            key = AddSysCustomKey(key);
            return Do(db => db.StringSet(key, value, expiry));
        }

        /// <summary>
        /// 保存多个key value
        /// </summary>
        /// <param name="keyValues">键值对</param>
        /// <returns></returns>
        public bool StringSet(List<KeyValuePair<RedisKey, RedisValue>> keyValues)
        {
            List<KeyValuePair<RedisKey, RedisValue>> newkeyValues =
                keyValues.Select(p => new KeyValuePair<RedisKey, RedisValue>(AddSysCustomKey(p.Key), p.Value)).ToList();
            return Do(db => db.StringSet(newkeyValues.ToArray()));
        }

        /// <summary>
        /// 保存一个对象
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="key"></param>
        /// <param name="obj"></param>
        /// <param name="expiry"></param>
        /// <returns></returns>
        public bool StringSet<T>(string key, T obj, TimeSpan? expiry = default(TimeSpan?))
        {
            key = AddSysCustomKey(key);
            string json = ConvertJson(obj);
            return Do(db => db.StringSet(key, json, expiry));
        }

        /// <summary>
        /// 获取单个key的值
        /// </summary>
        /// <param name="key">Redis Key</param>
        /// <returns></returns>
        public string StringGet(string key)
        {
            key = AddSysCustomKey(key);
            return Do(db => db.StringGet(key));
        }

        /// <summary>
        /// 获取多个Key
        /// </summary>
        /// <param name="listKey">Redis Key集合</param>
        /// <returns></returns>
        public RedisValue[] StringGet(List<string> listKey)
        {
            List<string> newKeys = listKey.Select(AddSysCustomKey).ToList();
            return Do(db => db.StringGet(ConvertRedisKeys(newKeys)));
        }

        /// <summary>
        /// 获取一个key的对象
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="key"></param>
        /// <returns></returns>
        public T StringGet<T>(string key)
        {
            key = AddSysCustomKey(key);
            return Do(db => ConvertObj<T>(db.StringGet(key)));
        }

        /// <summary>
        /// 为数字增长val
        /// </summary>
        /// <param name="key"></param>
        /// <param name="val">可以为负</param>
        /// <returns>增长后的值</returns>
        public double StringIncrement(string key, double val = 1)
        {
            key = AddSysCustomKey(key);
            return Do(db => db.StringIncrement(key, val));
        }

        /// <summary>
        /// 为数字减少val
        /// </summary>
        /// <param name="key"></param>
        /// <param name="val">可以为负</param>
        /// <returns>减少后的值</returns>
        public double StringDecrement(string key, double val = 1)
        {
            key = AddSysCustomKey(key);
            return Do(db => db.StringDecrement(key, val));
        }

        #endregion 同步方法

        #region 异步方法

        /// <summary>
        /// 保存单个key value
        /// </summary>
        /// <param name="key">Redis Key</param>
        /// <param name="value">保存的值</param>
        /// <param name="expiry">过期时间</param>
        /// <returns></returns>
        public async Task<bool> StringSetAsync(string key, string value, TimeSpan? expiry = default(TimeSpan?))
        {
            key = AddSysCustomKey(key);
            return await Do(db => db.StringSetAsync(key, value, expiry));
        }

        /// <summary>
        /// 保存多个key value
        /// </summary>
        /// <param name="keyValues">键值对</param>
        /// <returns></returns>
        public async Task<bool> StringSetAsync(List<KeyValuePair<RedisKey, RedisValue>> keyValues)
        {
            List<KeyValuePair<RedisKey, RedisValue>> newkeyValues =
                keyValues.Select(p => new KeyValuePair<RedisKey, RedisValue>(AddSysCustomKey(p.Key), p.Value)).ToList();
            return await Do(db => db.StringSetAsync(newkeyValues.ToArray()));
        }

        /// <summary>
        /// 保存一个对象
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="key"></param>
        /// <param name="obj"></param>
        /// <param name="expiry"></param>
        /// <returns></returns>
        public async Task<bool> StringSetAsync<T>(string key, T obj, TimeSpan? expiry = default(TimeSpan?))
        {
            key = AddSysCustomKey(key);
            string json = ConvertJson(obj);
            return await Do(db => db.StringSetAsync(key, json, expiry));
        }

        /// <summary>
        /// 获取单个key的值
        /// </summary>
        /// <param name="key">Redis Key</param>
        /// <returns></returns>
        public async Task<string> StringGetAsync(string key)
        {
            key = AddSysCustomKey(key);
            return await Do(db => db.StringGetAsync(key));
        }

        /// <summary>
        /// 获取多个Key
        /// </summary>
        /// <param name="listKey">Redis Key集合</param>
        /// <returns></returns>
        public async Task<RedisValue[]> StringGetAsync(List<string> listKey)
        {
            List<string> newKeys = listKey.Select(AddSysCustomKey).ToList();
            return await Do(db => db.StringGetAsync(ConvertRedisKeys(newKeys)));
        }

        /// <summary>
        /// 获取一个key的对象
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="key"></param>
        /// <returns></returns>
        public async Task<T> StringGetAsync<T>(string key)
        {
            key = AddSysCustomKey(key);
            string result = await Do(db => db.StringGetAsync(key));
            return ConvertObj<T>(result);
        }

        /// <summary>
        /// 为数字增长val
        /// </summary>
        /// <param name="key"></param>
        /// <param name="val">可以为负</param>
        /// <returns>增长后的值</returns>
        public async Task<double> StringIncrementAsync(string key, double val = 1)
        {
            key = AddSysCustomKey(key);
            return await Do(db => db.StringIncrementAsync(key, val));
        }

        /// <summary>
        /// 为数字减少val
        /// </summary>
        /// <param name="key"></param>
        /// <param name="val">可以为负</param>
        /// <returns>减少后的值</returns>
        public async Task<double> StringDecrementAsync(string key, double val = 1)
        {
            key = AddSysCustomKey(key);
            return await Do(db => db.StringDecrementAsync(key, val));
        }

        #endregion 异步方法

        #endregion String

        #region List

        #region 同步方法

        /// <summary>
        /// 移除指定ListId的内部List的值
        /// </summary>
        /// <param name="key"></param>
        /// <param name="value"></param>
        public void ListRemove<T>(string key, T value)
        {
            key = AddSysCustomKey(key);
            Do(db => db.ListRemove(key, ConvertJson(value)));
        }

        /// <summary>
        /// 获取指定key的List
        /// </summary>
        /// <param name="key"></param>
        /// <returns></returns>
        public List<T> ListRange<T>(string key)
        {
            key = AddSysCustomKey(key);
            return Do(redis =>
            {
                var values = redis.ListRange(key);
                return ConvetList<T>(values);
            });
        }

        /// <summary>
        /// 入队
        /// </summary>
        /// <param name="key"></param>
        /// <param name="value"></param>
        public void ListRightPush<T>(string key, T value)
        {
            key = AddSysCustomKey(key);
            Do(db => db.ListRightPush(key, ConvertJson(value)));
        }

        /// <summary>
        /// 出队
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="key"></param>
        /// <returns></returns>
        public T ListRightPop<T>(string key)
        {
            key = AddSysCustomKey(key);
            return Do(db =>
            {
                var value = db.ListRightPop(key);
                return ConvertObj<T>(value);
            });
        }

        /// <summary>
        /// 入栈
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="key"></param>
        /// <param name="value"></param>
        public void ListLeftPush<T>(string key, T value)
        {
            key = AddSysCustomKey(key);
            Do(db => db.ListLeftPush(key, ConvertJson(value)));
        }

        /// <summary>
        /// 出栈
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="key"></param>
        /// <returns></returns>
        public T ListLeftPop<T>(string key)
        {
            key = AddSysCustomKey(key);
            return Do(db =>
            {
                var value = db.ListLeftPop(key);
                return ConvertObj<T>(value);
            });
        }

        /// <summary>
        /// 获取集合中的数量
        /// </summary>
        /// <param name="key"></param>
        /// <returns></returns>
        public long ListLength(string key)
        {
            key = AddSysCustomKey(key);
            return Do(redis => redis.ListLength(key));
        }

        #endregion 同步方法

        #region 异步方法

        /// <summary>
        /// 移除指定ListId的内部List的值
        /// </summary>
        /// <param name="key"></param>
        /// <param name="value"></param>
        public async Task<long> ListRemoveAsync<T>(string key, T value)
        {
            key = AddSysCustomKey(key);
            return await Do(db => db.ListRemoveAsync(key, ConvertJson(value)));
        }

        /// <summary>
        /// 获取指定key的List
        /// </summary>
        /// <param name="key"></param>
        /// <returns></returns>
        public async Task<List<T>> ListRangeAsync<T>(string key)
        {
            key = AddSysCustomKey(key);
            var values = await Do(redis => redis.ListRangeAsync(key));
            return ConvetList<T>(values);
        }

        /// <summary>
        /// 入队
        /// </summary>
        /// <param name="key"></param>
        /// <param name="value"></param>
        public async Task<long> ListRightPushAsync<T>(string key, T value)
        {
            key = AddSysCustomKey(key);
            return await Do(db => db.ListRightPushAsync(key, ConvertJson(value)));
        }

        /// <summary>
        /// 出队
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="key"></param>
        /// <returns></returns>
        public async Task<T> ListRightPopAsync<T>(string key)
        {
            key = AddSysCustomKey(key);
            var value = await Do(db => db.ListRightPopAsync(key));
            return ConvertObj<T>(value);
        }

        /// <summary>
        /// 入栈
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="key"></param>
        /// <param name="value"></param>
        public async Task<long> ListLeftPushAsync<T>(string key, T value)
        {
            key = AddSysCustomKey(key);
            return await Do(db => db.ListLeftPushAsync(key, ConvertJson(value)));
        }

        /// <summary>
        /// 出栈
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="key"></param>
        /// <returns></returns>
        public async Task<T> ListLeftPopAsync<T>(string key)
        {
            key = AddSysCustomKey(key);
            var value = await Do(db => db.ListLeftPopAsync(key));
            return ConvertObj<T>(value);
        }

        /// <summary>
        /// 获取集合中的数量
        /// </summary>
        /// <param name="key"></param>
        /// <returns></returns>
        public async Task<long> ListLengthAsync(string key)
        {
            key = AddSysCustomKey(key);
            return await Do(redis => redis.ListLengthAsync(key));
        }

        #endregion 异步方法

        #endregion List

        #region Hash

        #region 同步方法

        /// <summary>
        /// 判断某个数据是否已经被缓存
        /// </summary>
        /// <param name="key"></param>
        /// <param name="dataKey"></param>
        /// <returns></returns>
        public bool HashExists(string key, string dataKey)
        {
            key = AddSysCustomKey(key);
            return Do(db => db.HashExists(key, dataKey));
        }

        /// <summary>
        /// 存储数据到hash表
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="key"></param>
        /// <param name="dataKey"></param>
        /// <param name="t"></param>
        /// <returns></returns>
        public bool HashSet<T>(string key, string dataKey, T t)
        {
            key = AddSysCustomKey(key);
            return Do(db =>
            {
                string json = ConvertJson(t);
                return db.HashSet(key, dataKey, json);
            });
        }

        /// <summary>
        /// 移除hash中的某值
        /// </summary>
        /// <param name="key"></param>
        /// <param name="dataKey"></param>
        /// <returns></returns>
        public bool HashDelete(string key, string dataKey)
        {
            key = AddSysCustomKey(key);
            return Do(db => db.HashDelete(key, dataKey));
        }

        /// <summary>
        /// 移除hash中的多个值
        /// </summary>
        /// <param name="key"></param>
        /// <param name="dataKeys"></param>
        /// <returns></returns>
        public long HashDelete(string key, List<RedisValue> dataKeys)
        {
            key = AddSysCustomKey(key);
            //List<RedisValue> dataKeys1 = new List<RedisValue>() {"1","2"};
            return Do(db => db.HashDelete(key, dataKeys.ToArray()));
        }

        /// <summary>
        /// 从hash表获取数据
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="key"></param>
        /// <param name="dataKey"></param>
        /// <returns></returns>
        public T HashGet<T>(string key, string dataKey)
        {
            key = AddSysCustomKey(key);
            return Do(db =>
            {
                string value = db.HashGet(key, dataKey);
                return ConvertObj<T>(value);
            });
        }

        /// <summary>
        /// 为数字增长val
        /// </summary>
        /// <param name="key"></param>
        /// <param name="dataKey"></param>
        /// <param name="val">可以为负</param>
        /// <returns>增长后的值</returns>
        public double HashIncrement(string key, string dataKey, double val = 1)
        {
            key = AddSysCustomKey(key);
            return Do(db => db.HashIncrement(key, dataKey, val));
        }

        /// <summary>
        /// 为数字减少val
        /// </summary>
        /// <param name="key"></param>
        /// <param name="dataKey"></param>
        /// <param name="val">可以为负</param>
        /// <returns>减少后的值</returns>
        public double HashDecrement(string key, string dataKey, double val = 1)
        {
            key = AddSysCustomKey(key);
            return Do(db => db.HashDecrement(key, dataKey, val));
        }

        /// <summary>
        /// 获取hashkey所有Redis key
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="key"></param>
        /// <returns></returns>
        public List<T> HashKeys<T>(string key)
        {
            key = AddSysCustomKey(key);
            return Do(db =>
            {
                RedisValue[] values = db.HashKeys(key);
                return ConvetList<T>(values);
            });
        }

        #endregion 同步方法

        #region 异步方法

        /// <summary>
        /// 判断某个数据是否已经被缓存
        /// </summary>
        /// <param name="key"></param>
        /// <param name="dataKey"></param>
        /// <returns></returns>
        public async Task<bool> HashExistsAsync(string key, string dataKey)
        {
            key = AddSysCustomKey(key);
            return await Do(db => db.HashExistsAsync(key, dataKey));
        }

        /// <summary>
        /// 存储数据到hash表
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="key"></param>
        /// <param name="dataKey"></param>
        /// <param name="t"></param>
        /// <returns></returns>
        public async Task<bool> HashSetAsync<T>(string key, string dataKey, T t)
        {
            key = AddSysCustomKey(key);
            return await Do(db =>
            {
                string json = ConvertJson(t);
                return db.HashSetAsync(key, dataKey, json);
            });
        }

        /// <summary>
        /// 移除hash中的某值
        /// </summary>
        /// <param name="key"></param>
        /// <param name="dataKey"></param>
        /// <returns></returns>
        public async Task<bool> HashDeleteAsync(string key, string dataKey)
        {
            key = AddSysCustomKey(key);
            return await Do(db => db.HashDeleteAsync(key, dataKey));
        }

        /// <summary>
        /// 移除hash中的多个值
        /// </summary>
        /// <param name="key"></param>
        /// <param name="dataKeys"></param>
        /// <returns></returns>
        public async Task<long> HashDeleteAsync(string key, List<RedisValue> dataKeys)
        {
            key = AddSysCustomKey(key);
            //List<RedisValue> dataKeys1 = new List<RedisValue>() {"1","2"};
            return await Do(db => db.HashDeleteAsync(key, dataKeys.ToArray()));
        }

        /// <summary>
        /// 从hash表获取数据
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="key"></param>
        /// <param name="dataKey"></param>
        /// <returns></returns>
        public async Task<T> HashGeAsync<T>(string key, string dataKey)
        {
            key = AddSysCustomKey(key);
            string value = await Do(db => db.HashGetAsync(key, dataKey));
            return ConvertObj<T>(value);
        }

        /// <summary>
        /// 为数字增长val
        /// </summary>
        /// <param name="key"></param>
        /// <param name="dataKey"></param>
        /// <param name="val">可以为负</param>
        /// <returns>增长后的值</returns>
        public async Task<double> HashIncrementAsync(string key, string dataKey, double val = 1)
        {
            key = AddSysCustomKey(key);
            return await Do(db => db.HashIncrementAsync(key, dataKey, val));
        }

        /// <summary>
        /// 为数字减少val
        /// </summary>
        /// <param name="key"></param>
        /// <param name="dataKey"></param>
        /// <param name="val">可以为负</param>
        /// <returns>减少后的值</returns>
        public async Task<double> HashDecrementAsync(string key, string dataKey, double val = 1)
        {
            key = AddSysCustomKey(key);
            return await Do(db => db.HashDecrementAsync(key, dataKey, val));
        }

        /// <summary>
        /// 获取hashkey所有Redis key
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="key"></param>
        /// <returns></returns>
        public async Task<List<T>> HashKeysAsync<T>(string key)
        {
            key = AddSysCustomKey(key);
            RedisValue[] values = await Do(db => db.HashKeysAsync(key));
            return ConvetList<T>(values);
        }

        #endregion 异步方法

        #endregion Hash

        #region SortedSet 有序集合

        #region 同步方法

        /// <summary>
        /// 添加
        /// </summary>
        /// <param name="key"></param>
        /// <param name="value"></param>
        /// <param name="score"></param>
        public bool SortedSetAdd<T>(string key, T value, double score)
        {
            key = AddSysCustomKey(key);
            return Do(redis => redis.SortedSetAdd(key, ConvertJson<T>(value), score));
        }

        /// <summary>
        /// 删除
        /// </summary>
        /// <param name="key"></param>
        /// <param name="value"></param>
        public bool SortedSetRemove<T>(string key, T value)
        {
            key = AddSysCustomKey(key);
            return Do(redis => redis.SortedSetRemove(key, ConvertJson(value)));
        }

        /// <summary>
        /// 获取全部
        /// </summary>
        /// <param name="key"></param>
        /// <returns></returns>
        public List<T> SortedSetRangeByRank<T>(string key)
        {
            key = AddSysCustomKey(key);
            return Do(redis =>
            {
                var values = redis.SortedSetRangeByRank(key);
                return ConvetList<T>(values);
            });
        }

        /// <summary>
        /// 获取集合中的数量
        /// </summary>
        /// <param name="key"></param>
        /// <returns></returns>
        public long SortedSetLength(string key)
        {
            key = AddSysCustomKey(key);
            return Do(redis => redis.SortedSetLength(key));
        }

        #endregion 同步方法

        #region 异步方法

        /// <summary>
        /// 添加
        /// </summary>
        /// <param name="key"></param>
        /// <param name="value"></param>
        /// <param name="score"></param>
        public async Task<bool> SortedSetAddAsync<T>(string key, T value, double score)
        {
            key = AddSysCustomKey(key);
            return await Do(redis => redis.SortedSetAddAsync(key, ConvertJson<T>(value), score));
        }

        /// <summary>
        /// 删除
        /// </summary>
        /// <param name="key"></param>
        /// <param name="value"></param>
        public async Task<bool> SortedSetRemoveAsync<T>(string key, T value)
        {
            key = AddSysCustomKey(key);
            return await Do(redis => redis.SortedSetRemoveAsync(key, ConvertJson(value)));
        }

        /// <summary>
        /// 获取全部
        /// </summary>
        /// <param name="key"></param>
        /// <returns></returns>
        public async Task<List<T>> SortedSetRangeByRankAsync<T>(string key)
        {
            key = AddSysCustomKey(key);
            var values = await Do(redis => redis.SortedSetRangeByRankAsync(key));
            return ConvetList<T>(values);
        }

        /// <summary>
        /// 获取集合中的数量
        /// </summary>
        /// <param name="key"></param>
        /// <returns></returns>
        public async Task<long> SortedSetLengthAsync(string key)
        {
            key = AddSysCustomKey(key);
            return await Do(redis => redis.SortedSetLengthAsync(key));
        }

        #endregion 异步方法

        #endregion SortedSet 有序集合

        #region key

        /// <summary>
        /// 删除单个key
        /// </summary>
        /// <param name="key">redis key</param>
        /// <returns>是否删除成功</returns>
        public bool KeyDelete(string key)
        {
            key = AddSysCustomKey(key);
            return Do(db => db.KeyDelete(key));
        }

        /// <summary>
        /// 删除多个key
        /// </summary>
        /// <param name="keys">rediskey</param>
        /// <returns>成功删除的个数</returns>
        public long KeyDelete(List<string> keys)
        {
            List<string> newKeys = keys.Select(AddSysCustomKey).ToList();
            return Do(db => db.KeyDelete(ConvertRedisKeys(newKeys)));
        }

        /// <summary>
        /// 判断key是否存储
        /// </summary>
        /// <param name="key">redis key</param>
        /// <returns></returns>
        public bool KeyExists(string key)
        {
            key = AddSysCustomKey(key);
            return Do(db => db.KeyExists(key));
        }

        /// <summary>
        /// 重新命名key
        /// </summary>
        /// <param name="key">就的redis key</param>
        /// <param name="newKey">新的redis key</param>
        /// <returns></returns>
        public bool KeyRename(string key, string newKey)
        {
            key = AddSysCustomKey(key);
            return Do(db => db.KeyRename(key, newKey));
        }

        /// <summary>
        /// 设置Key的时间
        /// </summary>
        /// <param name="key">redis key</param>
        /// <param name="expiry"></param>
        /// <returns></returns>
        public bool KeyExpire(string key, TimeSpan? expiry = default(TimeSpan?))
        {
            key = AddSysCustomKey(key);
            return Do(db => db.KeyExpire(key, expiry));
        }

        #endregion key

        #region 发布订阅

        /// <summary>
        /// Redis发布订阅  订阅
        /// </summary>
        /// <param name="subChannel"></param>
        /// <param name="handler"></param>
        public void Subscribe(string subChannel, Action<RedisChannel, RedisValue> handler = null)
        {
            ISubscriber sub = _conn.GetSubscriber();
            sub.Subscribe(subChannel, (channel, message) =>
            {
                if (handler == null)
                {
                    Console.WriteLine(subChannel + " 订阅收到消息：" + message);
                }
                else
                {
                    handler(channel, message);
                }
            });
        }

        /// <summary>
        /// Redis发布订阅  发布
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="channel"></param>
        /// <param name="msg"></param>
        /// <returns></returns>
        public long Publish<T>(string channel, T msg)
        {
            ISubscriber sub = _conn.GetSubscriber();
            return sub.Publish(channel, ConvertJson(msg));
        }

        /// <summary>
        /// Redis发布订阅  取消订阅
        /// </summary>
        /// <param name="channel"></param>
        public void Unsubscribe(string channel)
        {
            ISubscriber sub = _conn.GetSubscriber();
            sub.Unsubscribe(channel);
        }

        /// <summary>
        /// Redis发布订阅  取消全部订阅
        /// </summary>
        public void UnsubscribeAll()
        {
            ISubscriber sub = _conn.GetSubscriber();
            sub.UnsubscribeAll();
        }

        #endregion 发布订阅

        #region 其他

        public ITransaction CreateTransaction()
        {
            return GetDatabase().CreateTransaction();
        }

        public IDatabase GetDatabase()
        {
            return _conn.GetDatabase(DbNum);
        }

        public IServer GetServer(string hostAndPort)
        {
            return _conn.GetServer(hostAndPort);
        }

        /// <summary>
        /// 设置前缀
        /// </summary>
        /// <param name="customKey"></param>
        public void SetSysCustomKey(string customKey)
        {
            CustomKey = customKey;
        }

        #endregion 其他
    }
}

RedisHelper
View Code

4.使用 

技术图片 
[HttpPost]
        public JsonResult SetV()
        {
            bool result = new RedisCommon.RedisHelper().StringSet("name", "jay.star");
            return Json("result:" + result, JsonRequestBehavior.AllowGet);
        }

        [HttpGet]
        public JsonResult GetV()
        {
            string name = new RedisCommon.RedisHelper().StringGet("name");
            return Json("name:" + name, JsonRequestBehavior.AllowGet);
        }
View Code

 

Redis—.Net中的使用

标签：OLE   千万   订阅   isp   系统   title   过期   代码   show   

原文地址：https://www.cnblogs.com/xbzhu/p/11827187.html
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