RedisRepository 分享和纠错 RedisRepository 分享和纠错
坦荡 人气:0一. 写在前面
毕业工作后,今天终于能回家了,回想了一些这半年来所做的内容,总是觉得还停留在那么基础的水平 ,在解决各种问题的过程中,自己的创新思路比较少,靠搜索来的比较多 。不想做16年的总结了 ,希望17年能学更多的我爱的技术,看更多的开源代码,能学到更多的设计思想和代码思路,能再更新这两年来对代码的理解。
这篇分享,主要是弥补我之前RedisRepository的不足。
半年前由于我StackExchange.Redis文档阅读不足,所分享的RedisRepository有所错误。下面列举我的主要错误:
错误1,没有单例化ConnectionMultiplexer Redis连接对象,并且我天真的以为给单例对象加锁,在并发情况下,会限制了Redis的性能。
错误2,在主从情况下,我以为在发生手动切换的时候,我们要订阅切换事件,并在事件发生后,动态改变连接对象指向的Endpoint。
当我再一次仔细阅读文档时,才明白我的错误,这是一篇迟到的修正,但是我自用的repository自我感觉还是有很多不足之处,所以我真的需要老司机的指点和建议。
修正1,Redis连接对象创建的代价很大,并且单例加锁并不会影响Redis性能,因为在发生网络请求的期间,连接对象并没有在等待中。
修正2,Redis主从时,在哨兵切换主从关系后,StackExchange.Redis会为我们识别新的主从,不需要我们做任何操作。
目前为止我还有两个疑问。
疑问1,在看文档后没有明确结果。当做主从读写分离时, 我们在Endpoint Collection集合中添加多个节点就会自动读写分离?还是说需要 我们在读取命令的方法中指定CommandFlags.PreferSlave? 我认为是后者吧?所以我在我所有的读取方法都指定了PreferSlave。 老司机们怎么说?
疑问2,我使用LuaScript.Prepare(lua)后再Load出来,执行lua总是无效果,并且LuaScript.GetCachedScriptCount()为0. 不过我直接使用ScriptEvaluateAsync却是好用的,老司机如果有好的例子,希望老司机给些指导或者分享。
二. 代码结构,仅供参考
结构大概就是这样,RedisAsyncHelper下的所有类都是部分类,他们的类名称是RedisHelper。他们共同实现了IRedisHelper的接口,并且留下了详细的注释。
同步版本和异步版本的目录结构是一样的。
三. 预备阶段
CommonHelper中的两个帮助类:
RedisInnerTypeHelper.cs
using StackExchange.Redis; using System.Collections.Generic; using System.Linq; namespace Fantasy.RedisRepository.CommonHelper { internal class RedisInnerTypeHelper { public static List<T> RedisValuesToGenericList<T>(RedisValue[] redisValues) { var result = new List<T>(); redisValues.ToList().ForEach(r => result.Add(SerializeHelper.Deserialize<T>(r))); return result; } public static RedisValue[] GenericListToRedisValues<T>(List<T> values) { var redisValues = new List<RedisValue>(); values.ForEach(v => redisValues.Add(SerializeHelper.Serialize(values))); return redisValues.ToArray(); } public static RedisKey[] GenericListToRedisKeys(List<string> keys) { var redisKeys = new List<RedisKey>(); keys.ForEach(k => redisKeys.Add(k)); return redisKeys.ToArray(); } } }
SerializeHelper.cs
using System.IO; using System.Runtime.Serialization.Formatters.Binary; namespace Fantasy.RedisRepository.CommonHelper { internal static class SerializeHelper { /// <summary> /// 字节数组序列化 /// </summary> /// <param name="o"></param> /// <returns></returns> internal static byte[] Serialize(object o) { if (o == null) { return null; } BinaryFormatter binaryFormatter = new BinaryFormatter(); using (MemoryStream memoryStream = new MemoryStream()) { binaryFormatter.Serialize(memoryStream, o); byte[] objectDataAsStream = memoryStream.ToArray(); return objectDataAsStream; } } /// <summary> /// 字节数组反序列化 /// </summary> /// <typeparam name="T"></typeparam> /// <param name="stream"></param> /// <returns></returns> internal static T Deserialize<T>(byte[] stream) { if (stream == null) { return default(T); } BinaryFormatter binaryFormatter = new BinaryFormatter(); using (MemoryStream memoryStream = new MemoryStream(stream)) { T result = (T)binaryFormatter.Deserialize(memoryStream); return result; } } } }
Config中的配置类:
ConfigHelper.cs
using System; using System.Configuration; namespace Fantasy.RedisRepository.Config { internal class ConfigHelper { internal static T Get<T>(string appSettingsKey, T defaultValue) { string text = ConfigurationManager.AppSettings[appSettingsKey]; if (string.IsNullOrWhiteSpace(text)) return defaultValue; try { var value = Convert.ChangeType(text, typeof(T)); return (T)value; } catch { return defaultValue; } } } }
RedisClientConfig.cs
namespace Fantasy.RedisRepository.Config { internal class RedisClientConfig { private static string _server = ConfigHelper.Get("RedisServer", "115.xx.xx.31"); /// <summary> /// 节点IP /// </summary> public static string Server { get { return _server; } set { _server = value; } } private static int _port = ConfigHelper.Get("RedisPort", 6380); /// <summary> /// 节点端口 /// </summary> public static int Port { get { return _port; } set { _port = value; } } private static string _slaveServer = ConfigHelper.Get("SlaveServer", "115.xx.xx.31"); /// <summary> /// 节点IP /// </summary> public static string SlaveServer { get { return _slaveServer; } set { _slaveServer = value; } } private static int _slavePort = ConfigHelper.Get("SlavePort", 6381); /// <summary> /// 节点端口 /// </summary> public static int SlavePort { get { return _slavePort; } set { _slavePort = value; } } private static string _auth = ConfigHelper.Get("RedisAuth", "fantasy.."); /// <summary> /// 节点密码 /// </summary> public static string RedisAuth { get { return _auth; } set { _auth = value; } } private static int _defaultDatabase = ConfigHelper.Get("RedisDataBase", 0); /// <summary> /// redis默认0号库 /// </summary> public static int DefaultDatabase { get { return _defaultDatabase; } set { _defaultDatabase = value; } } private static int _connectTimeout = 10000; public static int ConnectTimeout { get { return _connectTimeout; } set { _connectTimeout = value; } } private static int _connectRetry = 3; public static int ConnectRetry { get { return _connectRetry; } set { _connectRetry = value; } } private static bool _preserveAsyncOrder = false; public static bool PreserveAsyncOrder { get { return _preserveAsyncOrder; } set { _preserveAsyncOrder = value; } } } }
RedisConnection.cs
using Fantasy.RedisRepository.Config; using StackExchange.Redis; namespace Fantasy.RedisRepository { /// <summary> /// Redis连接类 /// </summary> public static class RedisConnection { private static ConnectionMultiplexer _connection; private static readonly object SyncObject = new object(); /// <summary> /// redis连接对象,单例加锁不影响性能 /// </summary> public static ConnectionMultiplexer GenerateConnection { get { if (_connection == null || !_connection.IsConnected) { lock (SyncObject) { var configurationOptions = new ConfigurationOptions() { Password = RedisClientConfig.RedisAuth, EndPoints = { {RedisClientConfig.Server, RedisClientConfig.Port}, {RedisClientConfig.SlaveServer, RedisClientConfig.SlavePort} } }; _connection = ConnectionMultiplexer.Connect(configurationOptions); } } return _connection; } } } }
四. RedisHelper
实际上就是做了层序列化包装而已。
IRedisHelper:
using System; using StackExchange.Redis; using System.Collections.Generic; using System.Threading.Tasks; namespace Fantasy.RedisRepository.RedisHelpers { /// <summary> /// 异步方法接口 --Author 吴双 www.cnblogs.com/tdws /// 存入数据均为方法内部序列化后的byte,所以取数据的时候需要反序列化时,请指定正确的数据类型 /// </summary> public partial interface IRedisHelper { #region Redis数据类型—String /// <summary> /// 将任何数据以redis string存储 /// </summary> /// <typeparam name="T"></typeparam> /// <param name="key"></param> /// <param name="value"></param> /// <param name="timeout"></param> /// <returns></returns> Task<bool> StringSetAsync<T>(string key, T value, TimeSpan? timeout = null); /// <summary> /// 对数值进行减法操作,默认-1 /// </summary> /// <param name="key"></param> /// <param name="value"></param> /// <returns>操作后的结果</returns> Task<long> StringDecrementAsync(string key, long value = 1L); /// <summary> /// 对数值进行加法操作,默认+1 /// </summary> /// <param name="key"></param> /// <param name="value"></param> /// <returns>操作后的结果</returns> Task<long> StringIncrementAsync(string key, long value = 1L); /// <summary> /// 从redis string中以指定类型取出 /// </summary> /// <typeparam name="T"></typeparam> /// <param name="key"></param> /// <returns></returns> Task<T> StringGetAsync<T>(string key); #endregion #region Redis数据类型—Hash /// <summary> /// 向Hash key中存储任意类型任意值 /// </summary> /// <typeparam name="T"></typeparam> /// <param name="key"></param> /// <param name="field"></param> /// <param name="value"></param> /// <returns>是否成功</returns> Task<bool> HashSetAsync<T>(string key, string field, T value); /// <summary> /// 批量 向Hash key中存储任意类型任意值 /// </summary> /// <typeparam name="T"></typeparam> /// <param name="key"></param> /// <param name="hashFields"></param> /// <returns>无返回值</returns> Task HashMultiSetAsync<T>(string key, Dictionary<string, T> hashFields); /// <summary> /// 对指定hash key中制定field做数量增加操作 默认自增1 /// 如果此操作前key不存在 则创建。 如果此操作前该field不存在或者非数字 则先被置0,再被继续操作 /// </summary> /// <param name="key"></param> /// <param name="field"></param> /// <param name="incrCount"></param> /// <returns>操作后的结果</returns> Task<long> HashIncrementAsync(string key, string field, long incrCount = 1); /// <summary> /// 对指定hash key中制定field做数量增加操作 默认自减1 /// 如果此操作前key不存在 则创建。 如果此操作前该field不存在或者非数字 则先被置0,再被继续操作 /// </summary> /// <param name="key"></param> /// <param name="field"></param> /// <param name="decrCount"></param> /// <returns>操作后的结果</returns> Task<long> HashDecrementAsync(string key, string field, long decrCount = 1); /// <summary> /// 从指定Hash中 删除指定field /// 如果key或者field不存在,则false /// </summary> /// <param name="key"></param> /// <param name="field"></param> /// <returns>是否成功</returns> Task<bool> HashDeleteFieldAsync(string key, string field); /// <summary> /// 从指定Hash key中 批量删除指定field /// 如果key或者field不存在,则false /// </summary> /// <param name="key"></param> /// <param name="fields"></param> /// <returns>移除数量</returns> Task<long> HashMultiDeleteFieldAsync(string key, List<string> fields); /// <summary> /// 从指定Hash key中获取指定field值 /// </summary> /// <typeparam name="T"></typeparam> /// <param name="key"></param> /// <param name="field"></param> /// <returns></returns> Task<T> HashGetAsync<T>(string key, string field); /// <summary> /// 从指定Hash key中判断field是否存在 /// </summary> /// <param name="key"></param> /// <param name="field"></param> /// <returns></returns> Task<bool> HashFieldExistAsync(string key, string field); /// <summary> /// 获取指定Hash key中的所有field的值 /// </summary> /// <typeparam name="T"></typeparam> /// <param name="key"></param> /// <returns></returns> Task<List<T>> HashValuesAsync<T>(string key); /// <summary> /// 获取指定Hash key中所有 field名称及其Value /// </summary> /// <typeparam name="T"></typeparam> /// <param name="key"></param> /// <returns></returns> Task<Dictionary<string, T>> HashGetAllAsync<T>(string key); /// <summary> /// 获取指定Hash key中所有field /// </summary> /// <param name="key"></param> /// <returns></returns> Task<List<string>> HashFieldsAsync(string key); #endregion #region Redis数据类型—List /// <summary> /// 在指定pivot后插入value, 如果pivot不存在,则返回-1, 如果key不存在,则返回0 /// 如果存在多个相同指定的的pivot,则插入第一个指定pivot后面. /// 即链表从左向右查找,遇到指定pivot,则确定位置 /// </summary> /// <typeparam name="T"></typeparam> /// <param name="key"></param> /// <param name="pivot">list中的一个值</param> /// <param name="value"></param> /// <returns></returns> Task<long> ListInsertAfterAsync<T>(string key, string pivot, T value); /// <summary> /// 在指定pivot前插入value, 如果pivot不存在,则返回-1, 如果key不存在,则返回0 /// 如果存在多个相同指定的的pivot,则插入第一个指定pivot前面. /// 即链表从左向右查找,遇到指定pivot,则确定位置 /// </summary> /// <typeparam name="T"></typeparam> /// <param name="key"></param> /// <param name="pivot"></param> /// <param name="value"></param> /// <returns></returns> Task<long> ListInsertBeforeAsync<T>(string key, string pivot, T value); /// <summary> /// 从链表左侧弹出第一个元素(弹出能获取到该元素并且被删除) /// 如果key不存在 或者链表为空 则为null /// </summary> /// <typeparam name="T"></typeparam> /// <param name="key"></param> /// <returns></returns> Task<T> ListLeftPopAsync<T>(string key); /// <summary> /// 从链表左侧增加一个元素,key不存在则被创建 /// </summary> /// <typeparam name="T"></typeparam> /// <param name="key"></param> /// <param name="value"></param> /// <returns>返回操作后的链表长度</returns> Task<long> ListLeftPushAsync<T>(string key, T value); /// <summary> /// 从链表左侧批量增加元素,如果 a b c 则c会在链表左侧第一位 b第二位 a第三位 /// </summary> /// <typeparam name="T"></typeparam> /// <param name="key"></param> /// <param name="values"></param> /// <returns>返回操作后的链表长度</returns> Task<long> ListLeftMultiPushAsync<T>(string key, List<T> values); /// <summary> /// 获取链表长度,不存在key则为0 /// </summary> /// <typeparam name="T"></typeparam> /// <param name="key"></param> /// <returns></returns> Task<long> ListLengthAsync<T>(string key); /// <summary> /// 获取链表中所有数据,从左侧start开始到stop结束,从0—-1则认为获取全部,默认获取全部 /// start为负数则代表从链表右侧开始,-1为右侧第一位,-2为右侧第二位 /// start要小于stop,否则返回null /// </summary> /// <typeparam name="T"></typeparam> /// <param name="key"></param> /// <param name="start"></param> /// <param name="stop"></param> /// <returns></returns> Task<List<T>> ListRangeAsync<T>(string key, long start = 0L, long stop = -1L); /// <summary> /// 从链表中一处count数量的value. count大于0则从左至右,count小于0则从右至左,count=0则移除全部 /// </summary> /// <typeparam name="T"></typeparam> /// <param name="key"></param> /// <param name="value"></param> /// <param name="count"></param> /// <returns></returns> Task<long> ListRemoveAsync<T>(string key, T value, long count = 0L); /// <summary> /// 从右侧弹出第一个元素(弹出能获取到该元素并且被删除) /// </summary> /// <typeparam name="T"></typeparam> /// <param name="key"></param> /// <returns></returns> Task<T> ListRightPopAsync<T>(string key); /// <summary> /// 从链表右侧加入元素,如果 rpush a b c 则c为右侧第一位 b第二位 c第三位 /// </summary> /// <typeparam name="T"></typeparam> /// <param name="key"></param> /// <param name="value"></param> /// <returns></returns> Task<long> ListRightPushAsync<T>(string key, T value); /// <summary> /// 从右侧批量插入,和左侧相反 /// </summary> /// <typeparam name="T"></typeparam> /// <param name="key"></param> /// <param name="values"></param> /// <returns></returns> Task<long> ListRightMultiPushAsync<T>(string key, List<T> values); /// <summary> /// 在链表指定索引处,插入元素 /// 正数索引从0开始,代表左侧。负数从-1开始 代表从右侧。-1为右侧第一位 /// </summary> /// <typeparam name="T"></typeparam> /// <param name="key"></param> /// <param name="index"></param> /// <param name="value"></param> /// <returns></returns> Task ListSetByIndexAsync<T>(string key, int index, T value); /// <summary> /// 留下start到stop之间的数据。负数代表从右侧寻找 -1为右侧第一位 /// </summary> /// <param name="key"></param> /// <param name="start"></param> /// <param name="stop"></param> /// <returns></returns> Task ListTrimAsync(string key, long start, long stop); /// <summary> /// 获取指定index的值,负数代表从右侧寻找 -1为右侧第一位 /// </summary> /// <typeparam name="T"></typeparam> /// <param name="key"></param> /// <param name="index"></param> /// <returns></returns> Task<T> ListGetByIndexAsync<T>(string key, long index); #endregion #region Redis数据类型—Set /// <summary> /// 向指定集合中增加一个元素 /// </summary> /// <typeparam name="T"></typeparam> /// <param name="key"></param> /// <param name="value"></param> /// <returns></returns> Task<bool> SetAddAsync<T>(string key, T value); /// <summary> /// 指定集合计算操作operation枚举,指定计算结果将存的目标destKey,指定需要参与计算的多个key /// </summary> /// <param name="operation"></param> /// <param name="destKey"></param> /// <param name="combineKeys"></param> /// <returns></returns> Task<long> SetCombineAndStoreAsync(SetOperation operation, string destKey, List<string> combineKeys); /// <summary> /// 指定集合计算操作operation枚举,指定需要参与计算的多个key /// </summary> /// <typeparam name="T"></typeparam> /// <param name="operation"></param> /// <param name="combineKeys"></param> /// <returns></returns> Task<List<T>> SetCombineAsync<T>(SetOperation operation, List<string> combineKeys); /// <summary> /// 指定值是否存在于指定集合中 /// </summary> /// <typeparam name="T"></typeparam> /// <param name="key"></param> /// <param name="value"></param> /// <returns></returns> Task<bool> SetContainsAsync<T>(string key, T value); /// <summary> /// 获取指定集合中元素个数 /// </summary> /// <param name="key"></param> /// <returns></returns> Task<long> SetLengthAsync(string key); /// <summary> /// 获取指定集合中的所有元素 /// </summary> /// <typeparam name="T"></typeparam> /// <param name="key"></param> /// <param name="value"></param> /// <returns></returns> Task<List<T>> SetMembersAsync<T>(string key, T value); /// <summary> /// 从sourceKey移除指定value到目标distKey集合当中 /// 如果sourceKey存在指定value则返回true,否则不做任何操作返回false /// </summary> /// <typeparam name="T"></typeparam> /// <param name="sourcekey"></param> /// <param name="distKey"></param> /// <param name="value"></param> /// <returns></returns> Task<bool> SetMoveAsync<T>(string sourcekey, string distKey, T value); /// <summary> /// 从指定集合当中随机取出一个元素 /// </summary> /// <typeparam name="T"></typeparam> /// <param name="key"></param> /// <returns></returns> Task<T> SetRandomMemberAsync<T>(string key); /// <summary> /// 从指定集合随机弹出(删除并获取)一个元素 /// </summary> /// <typeparam name="T"></typeparam> /// <param name="key"></param> /// <returns></returns> Task<T> SetPopAsync<T>(string key); /// <summary> /// 从集合中随机弹出(删除并获取)多个元素 /// </summary> /// <typeparam name="T"></typeparam> /// <param name="key"></param> /// <returns></returns> Task<List<T>> SetRandomMembersAsync<T>(string key); /// <summary> /// 从集合中移除指定元素 /// </summary> /// <typeparam name="T"></typeparam> /// <param name="key"></param> /// <param name="value"></param> /// <returns></returns> Task<bool> SetRemoveAsync<T>(string key, T value); /// <summary> /// 从集合中批量移除元素 /// </summary> /// <typeparam name="T"></typeparam> /// <param name="key"></param> /// <param name="values"></param> /// <returns></returns> Task<long> SetMultiRemoveAsync<T>(string key, List<T> values); #endregion #region Redis数据类型—SortSet #endregion #region Redis Key操作 /// <summary> /// 删除指定key /// </summary> /// <param name="key"></param> /// <returns></returns> Task<bool> KeyDeleteAsync(string key); /// <summary> /// 设置key过期时间具体DateTime /// </summary> /// <param name="key"></param> /// <param name="expireAt"></param> /// <returns></returns> Task<bool> KeyExpireAtAsync(string key, DateTime expireAt); /// <summary> /// 设置key在将来的timeout后过期(TimeSpan) /// </summary> /// <param name="key"></param> /// <param name="timeout"></param> /// <returns></returns> Task<bool> KeyExpireInAsync(string key, TimeSpan timeout); /// <summary> /// key重命名 /// </summary> /// <param name="key"></param> /// <param name="newKey"></param> /// <returns></returns> Task<bool> KeyRenameAsync(string key, string newKey); /// <summary> /// 判断key是否已存在 /// </summary> /// <param name="key"></param> /// <returns></returns> Task<bool> KeyExistsAsync(string key); #endregion #region Redis Transcation /// <summary> /// 在事务中执行一系列redis命令。注意:在委托中的一系列命令的所有 值 都需要进行字节数组序列化 /// </summary> /// <param name="ranOperations"></param> /// <returns></returns> Task<bool> DoInTranscationAsync(Action<ITransaction> ranOperations); #endregion Task<RedisResult> Test(); } }
RedisHelper部分类RedisStringHelperAsync.cs
using System; using Fantasy.RedisRepository.CommonHelper; using StackExchange.Redis; using System.Threading.Tasks; namespace Fantasy.RedisRepository.RedisHelpers { /// <summary> /// Redis异步操作类 String部分类 /// </summary> internal partial class RedisHelper// : IRedisHelper { private static IDatabase _client; internal RedisHelper() { _client = RedisConnection.GenerateConnection.GetDatabase(); } #region String 写操作 /// <summary> /// 将任何数据添加到redis中 /// </summary> /// <typeparam name="T"></typeparam> /// <param name="key"></param> /// <param name="value"></param> /// <param name="timeout"></param> /// <returns></returns> public async Task<bool> StringSetAsync<T>(string key, T value, TimeSpan? timeout = null) { return await _client.StringSetAsync(key, SerializeHelper.Serialize(value), timeout); } public async Task<long> StringDecrementAsync(string key, long value = 1L) { return await _client.StringDecrementAsync(key, value); } public async Task<long> StringIncrementAsync(string key, long value = 1L) { return await _client.StringIncrementAsync(key, value); } #endregion #region String 读操作 /// <summary> /// 根据key获取指定类型数据 /// </summary> /// <typeparam name="T"></typeparam> /// <param name="key"></param> /// <returns></returns> public async Task<T> StringGetAsync<T>(string key) { return SerializeHelper.Deserialize<T>(await _client.StringGetAsync(key, CommandFlags.PreferSlave)); } #endregion } }
RedisHelper部分类RedisHashHelperAsync.cs
using Fantasy.RedisRepository.CommonHelper; using StackExchange.Redis; using System.Collections.Generic; using System.Linq; using System.Threading.Tasks; namespace Fantasy.RedisRepository.RedisHelpers { /// <summary> /// Redis异步操作类 Hash部分类 /// </summary> internal partial class RedisHelper { #region Hash 写操作 public async Task<bool> HashSetAsync<T>(string key, string field, T value) { return await _client.HashSetAsync(key, field, SerializeHelper.Serialize(value)); } public async Task HashMultiSetAsync<T>(string key, Dictionary<string, T> hashFields) { List<HashEntry> entries = new List<HashEntry>(); hashFields.ToList().ForEach(d => entries.Add(new HashEntry(d.Key, SerializeHelper.Serialize(d.Value)))); await _client.HashSetAsync(key, entries.ToArray()); } public async Task<long> HashIncrementAsync(string key, string field, long incrCount = 1) { return await _client.HashIncrementAsync(key, field, incrCount); } public async Task<long> HashDecrementAsync(string key, string field, long decrCount = 1) { return await _client.HashDecrementAsync(key, field, decrCount); } public async Task<bool> HashDeleteFieldAsync(string key, string field) { return await _client.HashDeleteAsync(key, field); } public async Task<long> HashMultiDeleteFieldAsync(string key, List<string> fields) { List<RedisValue> values = new List<RedisValue>(); fields.ForEach(f => values.Add(f)); return await _client.HashDeleteAsync(key, values.ToArray()); } #endregion #region Hash 读操作 /// <summary> /// Redis 指定hash类型key中field是否存在 /// </summary> /// <param name="key"></param> /// <param name="field"></param> /// <returns></returns> public async Task<bool> HashFieldExistAsync(string key, string field) { return await _client.HashExistsAsync(key, field, CommandFlags.PreferSlave); } public async Task<List<string>> HashFieldsAsync(string key) { RedisValue[] values = await _client.HashKeysAsync(key, CommandFlags.PreferSlave); return RedisInnerTypeHelper.RedisValuesToGenericList<string>(values); } public async Task<List<T>> HashValuesAsync<T>(string key) { var values = await _client.HashValuesAsync(key, CommandFlags.PreferSlave); return RedisInnerTypeHelper.RedisValuesToGenericList<T>(values); } public async Task<T> HashGetAsync<T>(string key, string field) { return SerializeHelper.Deserialize<T>(await _client.HashGetAsync(key, field, CommandFlags.PreferSlave)); } public async Task<Dictionary<string, T>> HashGetAllAsync<T>(string key) { HashEntry[] entries = await _client.HashGetAllAsync(key, CommandFlags.PreferSlave); Dictionary<string, T> dic = new Dictionary<string, T>(); entries.ToList().ForEach(e => dic.Add(e.Name, SerializeHelper.Deserialize<T>(e.Value))); return dic; } #endregion } }
RedisHelper部分类RedisListHelperAsync.cs
using Fantasy.RedisRepository.CommonHelper; using StackExchange.Redis; using System.Collections.Generic; using System.Linq; using System.Threading.Tasks; namespace Fantasy.RedisRepository.RedisHelpers { /// <summary> /// Redis异步操作类 Hash部分类 /// </summary> internal partial class RedisHelper { #region Hash 写操作 public async Task<bool> HashSetAsync<T>(string key, string field, T value) { return await _client.HashSetAsync(key, field, SerializeHelper.Serialize(value)); } public async Task HashMultiSetAsync<T>(string key, Dictionary<string, T> hashFields) { List<HashEntry> entries = new List<HashEntry>(); hashFields.ToList().ForEach(d => entries.Add(new HashEntry(d.Key, SerializeHelper.Serialize(d.Value)))); await _client.HashSetAsync(key, entries.ToArray()); } public async Task<long> HashIncrementAsync(string key, string field, long incrCount = 1) { return await _client.HashIncrementAsync(key, field, incrCount); } public async Task<long> HashDecrementAsync(string key, string field, long decrCount = 1) { return await _client.HashDecrementAsync(key, field, decrCount); } public async Task<bool> HashDeleteFieldAsync(string key, string field) { return await _client.HashDeleteAsync(key, field); } public async Task<long> HashMultiDeleteFieldAsync(string key, List<string> fields) { List<RedisValue> values = new List<RedisValue>(); fields.ForEach(f => values.Add(f)); return await _client.HashDeleteAsync(key, values.ToArray()); } #endregion #region Hash 读操作 /// <summary> /// Redis 指定hash类型key中field是否存在 /// </summary> /// <param name="key"></param> /// <param name="field"></param> /// <returns></returns> public async Task<bool> HashFieldExistAsync(string key, string field) { return await _client.HashExistsAsync(key, field, CommandFlags.PreferSlave); } public async Task<List<string>> HashFieldsAsync(string key) { RedisValue[] values = await _client.HashKeysAsync(key, CommandFlags.PreferSlave); return RedisInnerTypeHelper.RedisValuesToGenericList<string>(values); } public async Task<List<T>> HashValuesAsync<T>(string key) { var values = await _client.HashValuesAsync(key, CommandFlags.PreferSlave); return RedisInnerTypeHelper.RedisValuesToGenericList<T>(values); } public async Task<T> HashGetAsync<T>(string key, string field) { return SerializeHelper.Deserialize<T>(await _client.HashGetAsync(key, field, CommandFlags.PreferSlave)); } public async Task<Dictionary<string, T>> HashGetAllAsync<T>(string key) { HashEntry[] entries = await _client.HashGetAllAsync(key, CommandFlags.PreferSlave); Dictionary<string, T> dic = new Dictionary<string, T>(); entries.ToList().ForEach(e => dic.Add(e.Name, SerializeHelper.Deserialize<T>(e.Value))); return dic; } #endregion } }
RedisLuaHelper.cs 这里打算装一些功能行lua脚本, 外部依然是传key一类的参数,这个不完整,只是个实例。
using StackExchange.Redis; using System.Threading.Tasks; namespace Fantasy.RedisRepository.RedisHelpers { internal partial class RedisHelper { public async Task<RedisResult> LuaMutilGetHash() { string lua = @"local result={} for i, v in ipairs(KEYS) do result[i] = redis.call('hgetall',v) end return result"; var res = await _client.ScriptEvaluateAsync(lua, new RedisKey[] { "people:1", "people:2", "people:3" }); var res1= LuaScript.GetCachedScriptCount(); return res; } } }
关于Transcation的封装,我个人没有什么好的方法,提供了这样一个方法
public async Task<bool> DoInTranscationAsync(Action<ITransaction> runOperations) { var tran = RedisConnection.GenerateConnection.GetDatabase().CreateTransaction(); runOperations(tran); return await tran.ExecuteAsync(); }
RedisFactory.cs
using Fantasy.RedisRepository.RedisHelpers; namespace Fantasy.RedisRepository { public class RedisFactory { /// <summary> /// 外部访问redis入口,暂时只暴露异步方法 /// </summary> /// <returns></returns> public static IRedisHelper CreateRedisRepository() { return new RedisHelper(); } } }
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