直接引用StackExchange.Redis.dll这一个dll来操作redis
App.config配置
<?xml version="1.0" encoding="utf-8" ?> <configuration> <startup> <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5.1" /> </startup> <appSettings> <!--redis配置--> <add key="RedisHosts" value="127.0.0.1:6379,allowadmin=true,password=zoulu19900206" /> <add key="RedisKey" value="PubSub:" /> </appSettings> </configuration>
调用事例一、
using Common; using StackExchange.Redis; using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading; using System.Threading.Tasks; namespace Lock { class Program { static RedisStackExchangeHelper _redis = new RedisStackExchangeHelper(); static void Main(string[] args) { Lock(); } static void Lock() { Console.WriteLine("Start.........."); var db = _redis.GetDatabase(); RedisValue token = Environment.MachineName; //实际项目秒杀此处可换成商品ID if (db.LockTake("test", token, TimeSpan.FromSeconds(10))) { try { Console.WriteLine("Working.........."); Thread.Sleep(5000); } finally { db.LockRelease("test", token); } } Console.WriteLine("Over.........."); } } }
调用事例二、
using Common; using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading; using System.Threading.Tasks; namespace PubSub { class Program { static RedisStackExchangeHelper _redis = new RedisStackExchangeHelper(); static void Main(string[] args) { Console.WriteLine("请输入发布订阅类型?1:发布；2：订阅"); var type = Console.ReadLine(); if (type == "1") { Pub(); } else if(type=="2") { Sub(); } Console.ReadLine(); } static async Task Pub() { Console.WriteLine("请输入要发布向哪个通道？"); var channel = Console.ReadLine(); await Task.Delay(10); for(int i = 0; i < 10; i++) { await _redis.PublishAsync(channel, i.ToString()); } } static async Task Sub() { Console.WriteLine("请输入您要订阅哪个通道的信息？"); var channelKey = Console.ReadLine(); await _redis.SubscribeAsync(channelKey, (channel, message) => { Console.WriteLine("接受到发布的内容为：" + message); }); Console.WriteLine("您订阅的通道为：<< " + channelKey + " >> ! 请耐心等待消息的到来！！"); } } }
调用事例三、
using Common; using StackExchange.Redis; using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading; using System.Threading.Tasks; namespace Transaction { class Program { static RedisStackExchangeHelper _redis = new RedisStackExchangeHelper(); static void Main(string[] args) { Tran(); Console.ReadLine(); } static void Tran() { var tran = _redis.CreateTransaction(); tran.StringSetAsync("test1", "xiaopotian"); tran.StringSetAsync("test2", "xiaopangu"); var commit = tran.ExecuteAsync(); Console.WriteLine(commit); } } }
两个帮助类
using Newtonsoft.Json; using StackExchange.Redis; using System; using System.Collections.Generic; using System.Configuration; using System.Linq; using System.Text; using System.Threading.Tasks; namespace Common { /// <summary> /// Redis操作 /// </summary> public class RedisStackExchangeHelper { private readonly ConnectionMultiplexer _conn; public string CustomKey; private int DbNum { get; } #region 构造函数 public RedisStackExchangeHelper(int dbNum = 0) : this(dbNum, null) { } public RedisStackExchangeHelper(int dbNum, string readWriteHosts) { DbNum = DbNum; _conn = string.IsNullOrWhiteSpace(readWriteHosts) ? RedisConnectionHelp.Instance : RedisConnectionHelp.GetConnectionMultiplexer(readWriteHosts); } #endregion 构造函数 #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 long StringIncrement(string key, long 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 long StringDecrement(string key, long 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 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 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 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 #region 同步 /// <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 #region 异步 /// <summary> /// 删除单个key /// </summary> /// <param name="key">redis key</param> /// <returns>是否删除成功</returns> public async Task<bool> KeyDeleteAsync(string key) { key = AddSysCustomKey(key); return await Do(db => db.KeyDeleteAsync(key)); } /// <summary> /// 删除多个key /// </summary> /// <param name="keys">rediskey</param> /// <returns>成功删除的个数</returns> public async Task<long> KeyDeleteAsync(List<string> keys) { List<string> newKeys = keys.Select(AddSysCustomKey).ToList(); return await Do(db => db.KeyDeleteAsync(ConvertRedisKeys(newKeys))); } /// <summary> /// 判断key是否存储 /// </summary> /// <param name="key">redis key</param> /// <returns></returns> public async Task<bool> KeyExistsAsync(string key) { key = AddSysCustomKey(key); return await Do(db => db.KeyExistsAsync(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 async Task<bool> KeyRenameAsync(string key, string newKey) { key = AddSysCustomKey(key); return await Do(db => db.KeyRenameAsync(key, newKey)); } /// <summary> /// 设置Key的时间 /// </summary> /// <param name="key">redis key</param> /// <param name="expiry"></param> /// <returns></returns> public async Task<bool> KeyExpireAsync(string key, TimeSpan? expiry = default(TimeSpan?)) { key = AddSysCustomKey(key); return await Do(db => db.KeyExpireAsync(key, expiry)); } #endregion #endregion key #region 发布订阅 #region 同步 /// <summary> /// 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> /// 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> /// 取消订阅 /// </summary> /// <param name="channel"></param> public void Unsubscribe(string channel) { ISubscriber sub = _conn.GetSubscriber(); sub.Unsubscribe(channel); } /// <summary> /// 取消全部订阅 /// </summary> public void UnsubscribeAll() { ISubscriber sub = _conn.GetSubscriber(); sub.UnsubscribeAll(); } #endregion 发布订阅 #region 异步 /// <summary> /// 订阅 /// </summary> /// <param name="subChannel"></param> /// <param name="handler"></param> public async Task SubscribeAsync(string subChannel, Action<RedisChannel, RedisValue> handler = null) { ISubscriber sub = _conn.GetSubscriber(); await sub.SubscribeAsync(subChannel, (channel, message) => { if (handler == null) { Console.WriteLine(subChannel + " 订阅收到消息：" + message); } else { handler(channel, message); } }); } /// <summary> /// 发布 /// </summary> /// <typeparam name="T"></typeparam> /// <param name="channel"></param> /// <param name="msg"></param> /// <returns></returns> public async Task<long> PublishAsync<T>(string channel, T msg) { ISubscriber sub = _conn.GetSubscriber(); return await sub.PublishAsync(channel, ConvertJson(msg)); } /// <summary> /// 取消订阅 /// </summary> /// <param name="channel"></param> public async Task UnsubscribeAsync(string channel) { ISubscriber sub = _conn.GetSubscriber(); await sub.UnsubscribeAsync(channel); } /// <summary> /// 取消全部订阅 /// </summary> public async Task UnsubscribeAllAsync() { ISubscriber sub = _conn.GetSubscriber(); await sub.UnsubscribeAllAsync(); } #endregion 发布订阅 #endregion #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 #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) { if (value.IsNullOrEmpty) return default(T); 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(); } /// <summary> /// 转化为timespan /// </summary> /// <param name="expTime">过期时间，秒</param> /// <returns></returns> public TimeSpan ToTimeSpan(double expTime) { return DateTime.Now.AddSeconds(expTime) - DateTime.Now; } #endregion 辅助方法 } }
using StackExchange.Redis; using System; using System.Collections.Concurrent; using System.Configuration; namespace Common { /// <summary> /// ConnectionMultiplexer对象管理帮助类 /// </summary> public static class RedisConnectionHelp { /// <summary> /// 系统自定义Key前缀 /// </summary> public static readonly string SysCustomKey = ConfigurationManager.AppSettings["RedisKey"] ?? ""; /// <summary> /// 连接字符串 /// </summary> private static readonly string RedisConnectionString = ConfigurationManager.AppSettings["RedisHosts"] ?? "127.0.0.1:6379"; private static readonly object Locker = new object(); private static ConnectionMultiplexer _instance; /// <summary> /// 线程安全的字典 /// </summary> 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]; } /// <summary> /// 获取连接 /// </summary> /// <param name="connectionString"></param> /// <returns></returns> 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; connect.ConfigurationChangedBroadcast += MuxerConfigurationChangedBroadcast; return connect; } #region 事件 /// <summary> /// 重新配置广播时（通常意味着主从同步更改） /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private static void MuxerConfigurationChangedBroadcast(object sender, EndPointEventArgs e) { Console.WriteLine($"{nameof(MuxerConfigurationChangedBroadcast)}: {e.EndPoint}"); } /// <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> /// 发生内部错误时（主要用于调试） /// </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> /// 更改集群时 /// </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 } }
