多种数据结构的存储系统--Redis使用基础篇二(ServiceStack操作Redis)
前言:
上一篇文章主要介绍了Redis的应用场景和数据类型。对于开发者来说,可能更需要了解怎样用C#和Redis服务器打交道,今天介绍的ServiceStack.Redis就是用来做这件事的。
1.引入ServiceStack.Redis
2.启动Redis服务,如何启动Redis服务上篇文章写到了,就不截图了
3.封装帮助类
(1)Redis管理类,主要管理维护服务端访问
/// <summary> /// 管理类 主要管理维护服务端访问类 /// </summary> public class RedisManager { private static PooledRedisClientManager prcm; /// <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 ReadServerConStr = "127.0.0.1:6379"; prcm = new PooledRedisClientManager(ReadServerConStr); } /// <summary> /// 客户端缓存操作对象 /// </summary> public static IRedisClient GetClient() { if (prcm == null) CreateManager(); return prcm.GetClient(); } }
（2）Redis数据操作基类
/// <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 static IRedisClient Core { get; private set; } private bool _disposed = false; static RedisBase() { Core = RedisManager.GetClient(); } protected virtual void Dispose(bool disposing) { if (!this._disposed) { if (disposing) { Core.Dispose(); Core = null; } } this._disposed = true; } public void Dispose() { Dispose(true); GC.SuppressFinalize(this); } /// <summary> /// 保存数据DB文件到硬盘 /// </summary> public void Save() { Core.Save(); } /// <summary> /// 异步保存数据DB文件到硬盘 /// </summary> public void SaveAsync() { Core.SaveAsync(); } } }
(3)字符串,集合,Hash等操作基类
public class RedisString : RedisBase { #region 赋值 /// <summary> /// 设置key的value /// </summary> public static bool Set(string key, string value) { return RedisBase.Core.Set<string>(key, value); } /// <summary> /// 设置key的value并设置过期时间 /// </summary> public static bool Set(string key, string value, DateTime dt) { return RedisBase.Core.Set<string>(key, value, dt); } /// <summary> /// 设置key的value并设置过期时间 /// </summary> public static bool Set(string key, string value, TimeSpan sp) { return RedisBase.Core.Set<string>(key, value, sp); } /// <summary> /// 设置多个key/value /// </summary> public static void Set(Dictionary<string, string> dic) { RedisBase.Core.SetAll(dic); } #endregion #region 追加 /// <summary> /// 在原有key的value值之后追加value /// </summary> public static long Append(string key, string value) { return RedisBase.Core.AppendToValue(key, value); } #endregion #region 获取值 /// <summary> /// 获取key的value值 /// </summary> public static string Get(string key) { return RedisBase.Core.GetValue(key); } /// <summary> /// 获取多个key的value值 /// </summary> public static List<string> Get(List<string> keys) { return RedisBase.Core.GetValues(keys); } /// <summary> /// 获取多个key的value值 /// </summary> public static List<T> Get<T>(List<string> keys) { return RedisBase.Core.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 RedisBase.Core.GetAndSetValue(key, value); } #endregion #region 辅助方法 /// <summary> /// 获取值的长度 /// </summary> public static long GetCount(string key) { return RedisBase.Core.GetStringCount(key); } /// <summary> /// 自增1，返回自增后的值 /// </summary> public static long Incr(string key) { return RedisBase.Core.IncrementValue(key); } /// <summary> /// 自增count，返回自增后的值 /// </summary> public static double IncrBy(string key, double count) { return RedisBase.Core.IncrementValueBy(key, count); } /// <summary> /// 自减1，返回自减后的值 /// </summary> public static long Decr(string key) { return RedisBase.Core.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 static long DecrBy(string key, int count) { return RedisBase.Core.DecrementValueBy(key, count); } #endregion }
public class RedisHash : RedisBase { #region 添加 /// <summary> /// 向hashid集合中添加key/value /// </summary> public static bool SetEntryInHash(string hashid, string key, string value) { return RedisBase.Core.SetEntryInHash(hashid, key, value); } /// <summary> /// 如果hashid集合中存在key/value则不添加返回false，如果不存在在添加key/value,返回true /// </summary> public static bool SetEntryInHashIfNotExists(string hashid, string key, string value) { return RedisBase.Core.SetEntryInHashIfNotExists(hashid, key, value); } /// <summary> /// 存储对象T t到hash集合中 /// </summary> public static void StoreAsHash<T>(T t) { RedisBase.Core.StoreAsHash<T>(t); } #endregion #region 获取 /// <summary> /// 获取对象T中ID为id的数据。 /// </summary> public static T GetFromHash<T>(object id) { return RedisBase.Core.GetFromHash<T>(id); } /// <summary> /// 获取所有hashid数据集的key/value数据集合 /// </summary> public static Dictionary<string, string> GetAllEntriesFromHash(string hashid) { return RedisBase.Core.GetAllEntriesFromHash(hashid); } /// <summary> /// 获取hashid数据集中的数据总数 /// </summary> public static long GetHashCount(string hashid) { return RedisBase.Core.GetHashCount(hashid); } /// <summary> /// 获取hashid数据集中所有key的集合 /// </summary> public static List<string> GetHashKeys(string hashid) { return RedisBase.Core.GetHashKeys(hashid); } /// <summary> /// 获取hashid数据集中的所有value集合 /// </summary> public static List<string> GetHashValues(string hashid) { return RedisBase.Core.GetHashValues(hashid); } /// <summary> /// 获取hashid数据集中，key的value数据 /// </summary> public static string GetValueFromHash(string hashid, string key) { return RedisBase.Core.GetValueFromHash(hashid, key); } /// <summary> /// 获取hashid数据集中，多个keys的value集合 /// </summary> public static List<string> GetValuesFromHash(string hashid, string[] keys) { return RedisBase.Core.GetValuesFromHash(hashid, keys); } #endregion #region 删除 /// <summary> /// 删除hashid数据集中的key数据 /// </summary> public static bool RemoveEntryFromHash(string hashid, string key) { return RedisBase.Core.RemoveEntryFromHash(hashid, key); } #endregion #region 其它 /// <summary> /// 判断hashid数据集中是否存在key的数据 /// </summary> public static bool HashContainsEntry(string hashid, string key) { return RedisBase.Core.HashContainsEntry(hashid, key); } /// <summary> /// 给hashid数据集key的value加countby，返回相加后的数据 /// </summary> public static double IncrementValueInHash(string hashid, string key, double countBy) { return RedisBase.Core.IncrementValueInHash(hashid, key, countBy); } #endregion }
public class RedisList : RedisBase { #region 赋值 /// <summary> /// 从左侧向list中添加值 /// </summary> public static void LPush(string key, string value) { RedisBase.Core.PushItemToList(key, value); } /// <summary> /// 从左侧向list中添加值，并设置过期时间 /// </summary> public static void LPush(string key, string value, DateTime dt) { RedisBase.Core.PushItemToList(key, value); RedisBase.Core.ExpireEntryAt(key, dt); } /// <summary> /// 从左侧向list中添加值，设置过期时间 /// </summary> public static void LPush(string key, string value, TimeSpan sp) { RedisBase.Core.PushItemToList(key, value); RedisBase.Core.ExpireEntryIn(key, sp); } /// <summary> /// 从左侧向list中添加值 /// </summary> public static void RPush(string key, string value) { RedisBase.Core.PrependItemToList(key, value); } /// <summary> /// 从右侧向list中添加值，并设置过期时间 /// </summary> public static void RPush(string key, string value, DateTime dt) { RedisBase.Core.PrependItemToList(key, value); RedisBase.Core.ExpireEntryAt(key, dt); } /// <summary> /// 从右侧向list中添加值，并设置过期时间 /// </summary> public static void RPush(string key, string value, TimeSpan sp) { RedisBase.Core.PrependItemToList(key, value); RedisBase.Core.ExpireEntryIn(key, sp); } /// <summary> /// 添加key/value /// </summary> public static void Add(string key, string value) { RedisBase.Core.AddItemToList(key, value); } /// <summary> /// 添加key/value ,并设置过期时间 /// </summary> public static void Add(string key, string value, DateTime dt) { RedisBase.Core.AddItemToList(key, value); RedisBase.Core.ExpireEntryAt(key, dt); } /// <summary> /// 添加key/value。并添加过期时间 /// </summary> public static void Add(string key, string value, TimeSpan sp) { RedisBase.Core.AddItemToList(key, value); RedisBase.Core.ExpireEntryIn(key, sp); } /// <summary> /// 为key添加多个值 /// </summary> public static void Add(string key, List<string> values) { RedisBase.Core.AddRangeToList(key, values); } /// <summary> /// 为key添加多个值，并设置过期时间 /// </summary> public static void Add(string key, List<string> values, DateTime dt) { RedisBase.Core.AddRangeToList(key, values); RedisBase.Core.ExpireEntryAt(key, dt); } /// <summary> /// 为key添加多个值，并设置过期时间 /// </summary> public static void Add(string key, List<string> values, TimeSpan sp) { RedisBase.Core.AddRangeToList(key, values); RedisBase.Core.ExpireEntryIn(key, sp); } #endregion #region 获取值 /// <summary> /// 获取list中key包含的数据数量 /// </summary> public static long Count(string key) { return RedisBase.Core.GetListCount(key); } /// <summary> /// 获取key包含的所有数据集合 /// </summary> public static List<string> Get(string key) { return RedisBase.Core.GetAllItemsFromList(key); } /// <summary> /// 获取key中下标为star到end的值集合 /// </summary> public static List<string> Get(string key, int star, int end) { return RedisBase.Core.GetRangeFromList(key, star, end); } #endregion #region 阻塞命令 /// <summary> /// 阻塞命令：从list中keys的尾部移除一个值，并返回移除的值，阻塞时间为sp /// </summary> public static string BlockingPopItemFromList(string key, TimeSpan? sp) { return RedisBase.Core.BlockingDequeueItemFromList(key, sp); } /// <summary> /// 阻塞命令：从list中keys的尾部移除一个值，并返回移除的值，阻塞时间为sp /// </summary> public static ItemRef BlockingPopItemFromLists(string[] keys, TimeSpan? sp) { return RedisBase.Core.BlockingPopItemFromLists(keys, sp); } /// <summary> /// 阻塞命令：从list中keys的尾部移除一个值，并返回移除的值，阻塞时间为sp /// </summary> public static string BlockingDequeueItemFromList(string key, TimeSpan? sp) { return RedisBase.Core.BlockingDequeueItemFromList(key, sp); } /// <summary> /// 阻塞命令：从list中keys的尾部移除一个值，并返回移除的值，阻塞时间为sp /// </summary> public static ItemRef BlockingDequeueItemFromLists(string[] keys, TimeSpan? sp) { return RedisBase.Core.BlockingDequeueItemFromLists(keys, sp); } /// <summary> /// 阻塞命令：从list中key的头部移除一个值，并返回移除的值，阻塞时间为sp /// </summary> public static string BlockingRemoveStartFromList(string keys, TimeSpan? sp) { return RedisBase.Core.BlockingRemoveStartFromList(keys, sp); } /// <summary> /// 阻塞命令：从list中key的头部移除一个值，并返回移除的值，阻塞时间为sp /// </summary> public static ItemRef BlockingRemoveStartFromLists(string[] keys, TimeSpan? sp) { return RedisBase.Core.BlockingRemoveStartFromLists(keys, sp); } /// <summary> /// 阻塞命令：从list中一个fromkey的尾部移除一个值，添加到另外一个tokey的头部，并返回移除的值，阻塞时间为sp /// </summary> public static string BlockingPopAndPushItemBetweenLists(string fromkey, string tokey, TimeSpan? sp) { return RedisBase.Core.BlockingPopAndPushItemBetweenLists(fromkey, tokey, sp); } #endregion #region 删除 /// <summary> /// 从尾部移除数据，返回移除的数据 /// </summary> public static string PopItemFromList(string key) { return RedisBase.Core.PopItemFromList(key); } /// <summary> /// 移除list中，key/value,与参数相同的值，并返回移除的数量 /// </summary> public static long RemoveItemFromList(string key, string value) { return RedisBase.Core.RemoveItemFromList(key, value); } /// <summary> /// 从list的尾部移除一个数据，返回移除的数据 /// </summary> public static string RemoveEndFromList(string key) { return RedisBase.Core.RemoveEndFromList(key); } /// <summary> /// 从list的头部移除一个数据，返回移除的值 /// </summary> public static string RemoveStartFromList(string key) { return RedisBase.Core.RemoveStartFromList(key); } #endregion #region 其它 /// <summary> /// 从一个list的尾部移除一个数据，添加到另外一个list的头部，并返回移动的值 /// </summary> public static string PopAndPushItemBetweenLists(string fromKey, string toKey) { return RedisBase.Core.PopAndPushItemBetweenLists(fromKey, toKey); } #endregion }
public class RedisSet : RedisBase { #region 添加 /// <summary> /// key集合中添加value值 /// </summary> public static void Add(string key, string value) { RedisBase.Core.AddItemToSet(key, value); } /// <summary> /// key集合中添加list集合 /// </summary> public static void Add(string key, List<string> list) { RedisBase.Core.AddRangeToSet(key, list); } #endregion #region 获取 /// <summary> /// 随机获取key集合中的一个值 /// </summary> public static string GetRandomItemFromSet(string key) { return RedisBase.Core.GetRandomItemFromSet(key); } /// <summary> /// 获取key集合值的数量 /// </summary> public static long GetCount(string key) { return RedisBase.Core.GetSetCount(key); } /// <summary> /// 获取所有key集合的值 /// </summary> public static HashSet<string> GetAllItemsFromSet(string key) { return RedisBase.Core.GetAllItemsFromSet(key); } #endregion #region 删除 /// <summary> /// 随机删除key集合中的一个值 /// </summary> public static string PopItemFromSet(string key) { return RedisBase.Core.PopItemFromSet(key); } /// <summary> /// 删除key集合中的value /// </summary> public static void RemoveItemFromSet(string key, string value) { RedisBase.Core.RemoveItemFromSet(key, value); } #endregion #region 其它 /// <summary> /// 从fromkey集合中移除值为value的值，并把value添加到tokey集合中 /// </summary> public static void MoveBetweenSets(string fromkey, string tokey, string value) { RedisBase.Core.MoveBetweenSets(fromkey, tokey, value); } /// <summary> /// 返回keys多个集合中的并集，返还hashset /// </summary> public static HashSet<string> GetUnionFromSets(string[] keys) { return RedisBase.Core.GetUnionFromSets(keys); } /// <summary> /// keys多个集合中的并集，放入newkey集合中 /// </summary> public static void StoreUnionFromSets(string newkey, string[] keys) { RedisBase.Core.StoreUnionFromSets(newkey, keys); } /// <summary> /// 把fromkey集合中的数据与keys集合中的数据对比，fromkey集合中不存在keys集合中，则把这些不存在的数据放入newkey集合中 /// </summary> public static void StoreDifferencesFromSet(string newkey, string fromkey, string[] keys) { RedisBase.Core.StoreDifferencesFromSet(newkey, fromkey, keys); } #endregion }
public class RedisZSet : RedisBase { #region 添加 /// <summary> /// 添加key/value，默认分数是从1.多*10的9次方以此递增的,自带自增效果 /// </summary> public static bool AddItemToSortedSet(string key, string value) { return RedisBase.Core.AddItemToSortedSet(key, value); } /// <summary> /// 添加key/value,并设置value的分数 /// </summary> public static bool AddItemToSortedSet(string key, string value, double score) { return RedisBase.Core.AddItemToSortedSet(key, value, score); } /// <summary> /// 为key添加values集合，values集合中每个value的分数设置为score /// </summary> public static bool AddRangeToSortedSet(string key, List<string> values, double score) { return RedisBase.Core.AddRangeToSortedSet(key, values, score); } /// <summary> /// 为key添加values集合，values集合中每个value的分数设置为score /// </summary> public static bool AddRangeToSortedSet(string key, List<string> values, long score) { return RedisBase.Core.AddRangeToSortedSet(key, values, score); } #endregion #region 获取 /// <summary> /// 获取key的所有集合 /// </summary> public static List<string> GetAllItemsFromSortedSet(string key) { return RedisBase.Core.GetAllItemsFromSortedSet(key); } /// <summary> /// 获取key的所有集合，倒叙输出 /// </summary> public static List<string> GetAllItemsFromSortedSetDesc(string key) { return RedisBase.Core.GetAllItemsFromSortedSetDesc(key); } /// <summary> /// 获取可以的说有集合，带分数 /// </summary> public static IDictionary<string, double> GetAllWithScoresFromSortedSet(string key) { return RedisBase.Core.GetAllWithScoresFromSortedSet(key); } /// <summary> /// 获取key为value的下标值 /// </summary> public static long GetItemIndexInSortedSet(string key, string value) { return RedisBase.Core.GetItemIndexInSortedSet(key, value); } /// <summary> /// 倒叙排列获取key为value的下标值 /// </summary> public static long GetItemIndexInSortedSetDesc(string key, string value) { return RedisBase.Core.GetItemIndexInSortedSetDesc(key, value); } /// <summary> /// 获取key为value的分数 /// </summary> public static double GetItemScoreInSortedSet(string key, string value) { return RedisBase.Core.GetItemScoreInSortedSet(key, value); } /// <summary> /// 获取key所有集合的数据总数 /// </summary> public static long GetSortedSetCount(string key) { return RedisBase.Core.GetSortedSetCount(key); } /// <summary> /// key集合数据从分数为fromscore到分数为toscore的数据总数 /// </summary> public static long GetSortedSetCount(string key, double fromScore, double toScore) { return RedisBase.Core.GetSortedSetCount(key, fromScore, toScore); } /// <summary> /// 获取key集合从高分到低分排序数据，分数从fromscore到分数为toscore的数据 /// </summary> public static List<string> GetRangeFromSortedSetByHighestScore(string key, double fromscore, double toscore) { return RedisBase.Core.GetRangeFromSortedSetByHighestScore(key, fromscore, toscore); } /// <summary> /// 获取key集合从低分到高分排序数据，分数从fromscore到分数为toscore的数据 /// </summary> public static List<string> GetRangeFromSortedSetByLowestScore(string key, double fromscore, double toscore) { return RedisBase.Core.GetRangeFromSortedSetByLowestScore(key, fromscore, toscore); } /// <summary> /// 获取key集合从高分到低分排序数据，分数从fromscore到分数为toscore的数据，带分数 /// </summary> public static IDictionary<string, double> GetRangeWithScoresFromSortedSetByHighestScore(string key, double fromscore, double toscore) { return RedisBase.Core.GetRangeWithScoresFromSortedSetByHighestScore(key, fromscore, toscore); } /// <summary> /// 获取key集合从低分到高分排序数据，分数从fromscore到分数为toscore的数据，带分数 /// </summary> public static IDictionary<string, double> GetRangeWithScoresFromSortedSetByLowestScore(string key, double fromscore, double toscore) { return RedisBase.Core.GetRangeWithScoresFromSortedSetByLowestScore(key, fromscore, toscore); } /// <summary> /// 获取key集合数据，下标从fromRank到分数为toRank的数据 /// </summary> public static List<string> GetRangeFromSortedSet(string key, int fromRank, int toRank) { return RedisBase.Core.GetRangeFromSortedSet(key, fromRank, toRank); } /// <summary> /// 获取key集合倒叙排列数据，下标从fromRank到分数为toRank的数据 /// </summary> public static List<string> GetRangeFromSortedSetDesc(string key, int fromRank, int toRank) { return RedisBase.Core.GetRangeFromSortedSetDesc(key, fromRank, toRank); } /// <summary> /// 获取key集合数据，下标从fromRank到分数为toRank的数据，带分数 /// </summary> public static IDictionary<string, double> GetRangeWithScoresFromSortedSet(string key, int fromRank, int toRank) { return RedisBase.Core.GetRangeWithScoresFromSortedSet(key, fromRank, toRank); } /// <summary> /// 获取key集合倒叙排列数据，下标从fromRank到分数为toRank的数据，带分数 /// </summary> public static IDictionary<string, double> GetRangeWithScoresFromSortedSetDesc(string key, int fromRank, int toRank) { return RedisBase.Core.GetRangeWithScoresFromSortedSetDesc(key, fromRank, toRank); } #endregion #region 删除 /// <summary> /// 删除key为value的数据 /// </summary> public static bool RemoveItemFromSortedSet(string key, string value) { return RedisBase.Core.RemoveItemFromSortedSet(key, value); } /// <summary> /// 删除下标从minRank到maxRank的key集合数据 /// </summary> public static long RemoveRangeFromSortedSet(string key, int minRank, int maxRank) { return RedisBase.Core.RemoveRangeFromSortedSet(key, minRank, maxRank); } /// <summary> /// 删除分数从fromscore到toscore的key集合数据 /// </summary> public static long RemoveRangeFromSortedSetByScore(string key, double fromscore, double toscore) { return RedisBase.Core.RemoveRangeFromSortedSetByScore(key, fromscore, toscore); } /// <summary> /// 删除key集合中分数最大的数据 /// </summary> public static string PopItemWithHighestScoreFromSortedSet(string key) { return RedisBase.Core.PopItemWithHighestScoreFromSortedSet(key); } /// <summary> /// 删除key集合中分数最小的数据 /// </summary> public static string PopItemWithLowestScoreFromSortedSet(string key) { return RedisBase.Core.PopItemWithLowestScoreFromSortedSet(key); } #endregion #region 其它 /// <summary> /// 判断key集合中是否存在value数据 /// </summary> public static bool SortedSetContainsItem(string key, string value) { return RedisBase.Core.SortedSetContainsItem(key, value); } /// <summary> /// 为key集合值为value的数据，分数加scoreby，返回相加后的分数 /// </summary> public static double IncrementItemInSortedSet(string key, string value, double scoreBy) { return RedisBase.Core.IncrementItemInSortedSet(key, value, scoreBy); } /// <summary> /// 获取keys多个集合的交集，并把交集添加的newkey集合中，返回交集数据的总数 /// </summary> public static long StoreIntersectFromSortedSets(string newkey, string[] keys) { return RedisBase.Core.StoreIntersectFromSortedSets(newkey, keys); } /// <summary> /// 获取keys多个集合的并集，并把并集数据添加到newkey集合中，返回并集数据的总数 /// </summary> public static long StoreUnionFromSortedSets(string newkey, string[] keys) { return RedisBase.Core.StoreUnionFromSortedSets(newkey, keys); } #endregion }
4.操作类使用测试
string strkey = "user"; string listkey = "users"; ////写入一条字符串 RedisString.Set(strkey, "guowenhao"); var str = RedisString.Get(strkey); ////插入一条集合 RedisList.LPush(listkey, "admin"); RedisList.LPush(listkey, "guest"); RedisList.LPush(listkey, "guowenhao"); var list = RedisList.Get(listkey); foreach (var item in list) { Console.WriteLine($"集合,key:{listkey}---value:{item}"); } Console.WriteLine($"字符串,key:{strkey}---value:{str}"); Console.ReadKey();
输出结果:
5.发布/订阅消息
发布者代码:
public class RedisPub:RedisBase { /// <summary> /// 向指定频道发布一条消息 /// </summary> /// <param name="message">消息</param> /// <param name="channel">频道</param> public static void Publish(string message, string channel) { RedisBase.Core.PublishMessage(channel, message); } }
向channel1每隔1秒发布一条消息:
static void Main(string[] args) { for (int i = 0; i <= 10; i++) { RedisPub.Publish($"发送的第{i}条信息", "channel1"); Task.Delay(1000).GetResult(); } }
订阅者代码:
class RedisSub { /// <summary> /// Redis订阅 /// </summary> public static void Subscribe() { using (RedisClient consumer = new RedisClient("127.0.0.1", 6379)) { //创建订阅 IRedisSubscription subscription = consumer.CreateSubscription(); //接受到消息时 subscription.OnMessage = (channel, msg) => { Console.WriteLine($"从频道：{channel}上接受到消息：{msg},时间：{DateTime.Now.ToString("yyyyMMdd HH:mm:ss")}"); Console.WriteLine($"频道订阅数目：{subscription.SubscriptionCount}"); Console.WriteLine("___________________________________________________________________"); }; //订阅频道时 subscription.OnSubscribe = (channel) => { Console.WriteLine("订阅客户端：开始订阅" + channel); }; //取消订阅频道时 subscription.OnUnSubscribe = (a) => { Console.WriteLine("订阅客户端：取消订阅"); }; //订阅频道 subscription.SubscribeToChannels("channel1"); } } }
控制台输出结果:
