Redis緩存服務搭建及實現數據讀寫 - Eric.Chen

發現博客園中好多大牛在介紹本身的開源項目是不多用到緩存，好比Memcached、Redis、mongodb等，今天得空抽時間把Redis緩存研究了一下，寫下來總結一下，跟你們一塊兒分享 一下。因爲小弟水平有限又是第一次接觸Redis，有些的不對的地方歡迎指出糾正。

一、  下載安裝Redis

下載地址： https://github.com/MSOpenTech/Redis 。

二、  安裝Redis

     在下載的文件中找到bin並打開。

• redis-server.exe：服務程序(目前咱們只用到這一個)
• redis-check-dump.exe：本地數據庫檢查
•  redis-check-aof.exe：更新日誌檢查
•  redis-benchmark.exe：性能測試，用以模擬同時由N個客戶端發送M個 SETs/GETs 查詢 (相似於 Apache 的ab 工具).

Redis有不少配置參數，這裏就不介紹了，有興趣的朋友能夠到網上查查。

雙擊redis-server.exe或者在命令窗口中輸入D:\redis-2.6\redis-server.exe便可啓動Redis服務。

 

  注意 端口號：Port：6379 在咱們的程序中會用到該端口號。

三、  數據讀、寫、刪測試，並實現list存數。

首先引用下面四個DLL文件

 

using System;
using System.Collections.Generic; using System.Linq; using System.Text; using ServiceStack.Redis; using ServiceStack.Text; using ServiceStack.Redis.Generic; namespace RedisStudy { public class RedisHelper:IDisposable { public RedisClient Redis = new RedisClient("127.0.0.1", 6379); //緩存池 PooledRedisClientManager prcm = new PooledRedisClientManager(); //默認緩存過時時間單位秒 public int secondsTimeOut = 30 * 60; /// <summary> /// 緩衝池 /// </summary> /// <param name="readWriteHosts"></param> /// <param name="readOnlyHosts"></param> /// <returns></returns> public static PooledRedisClientManager CreateManager( string[] readWriteHosts, string[] readOnlyHosts) { return new PooledRedisClientManager(readWriteHosts, readOnlyHosts, new RedisClientManagerConfig { MaxWritePoolSize = readWriteHosts.Length * 5, MaxReadPoolSize = readOnlyHosts.Length * 5, AutoStart = true, });// { RedisClientFactory = (IRedisClientFactory)RedisCacheClientFactory.Instance.CreateRedisClient("127.0.0.1", 6379) }; } /// <summary> /// 構造函數 /// </summary> /// <param name="OpenPooledRedis">是否開啓緩衝池</param> public RedisHelper(bool OpenPooledRedis=false) { if (OpenPooledRedis) { prcm = CreateManager(new string[] { "127.0.0.1:6379" }, new string[] { "127.0.0.1:6379" }); Redis = prcm.GetClient() as RedisClient; } } #region Key/Value存儲 /// <summary> /// 設置緩存 /// </summary> /// <typeparam name="T"></typeparam> /// <param name="key">緩存建</param> /// <param name="t">緩存值</param> /// <param name="timeout">過時時間，單位秒,-1：不過時，0：默認過時時間</param> /// <returns></returns> public bool Set<T>(string key, T t, int timeout = 0) { if (timeout >= 0) { if (timeout > 0) { secondsTimeOut = timeout; } Redis.Expire(key, secondsTimeOut); } return Redis.Add<T>(key, t); } /// <summary> /// 獲取 /// </summary> /// <typeparam name="T"></typeparam> /// <param name="key"></param> /// <returns></returns> public T Get<T>(string key) { return Redis.Get<T>(key); } /// <summary> /// 刪除 /// </summary> /// <param name="key"></param> /// <returns></returns> public bool Remove(string key) { return Redis.Remove(key); } public bool Add<T>(string key, T t, int timeout) { if (timeout >= 0) { if (timeout > 0) { secondsTimeOut = timeout; } Redis.Expire(key, secondsTimeOut); } return Redis.Add<T>(key, t); } #endregion #region 鏈表操做 /// <summary> /// 根據IEnumerable數據添加鏈表 /// </summary> /// <typeparam name="T"></typeparam> /// <param name="listId"></param> /// <param name="values"></param> /// <param name="timeout"></param> public void AddList<T>(string listId, IEnumerable<T> values, int timeout = 0) { Redis.Expire(listId,60); IRedisTypedClient<T> iredisClient = Redis.As<T>(); if (timeout >= 0) { if (timeout > 0) { secondsTimeOut = timeout; } Redis.Expire(listId, secondsTimeOut); } var redisList = iredisClient.Lists[listId]; redisList.AddRange(values); iredisClient.Save(); } /// <summary> /// 添加單個實體到鏈表中 /// </summary> /// <typeparam name="T"></typeparam> /// <param name="listId"></param> /// <param name="Item"></param> /// <param name="timeout"></param> public void AddEntityToList<T>(string listId, T Item, int timeout = 0) { IRedisTypedClient<T> iredisClient = Redis.As<T>(); if (timeout >= 0) { if (timeout > 0) { secondsTimeOut = timeout; } Redis.Expire(listId, secondsTimeOut); } var redisList = iredisClient.Lists[listId]; redisList.Add(Item); iredisClient.Save(); } /// <summary> /// 獲取鏈表 /// </summary> /// <typeparam name="T"></typeparam> /// <param name="listId"></param> /// <returns></returns> public IEnumerable<T> GetList<T>(string listId) { IRedisTypedClient<T> iredisClient = Redis.As<T>(); return iredisClient.Lists[listId]; } /// <summary> /// 在鏈表中刪除單個實體 /// </summary> /// <typeparam name="T"></typeparam> /// <param name="listId"></param> /// <param name="t"></param> public void RemoveEntityFromList<T>(string listId, T t) { IRedisTypedClient<T> iredisClient = Redis.As<T>(); var redisList = iredisClient.Lists[listId]; redisList.RemoveValue(t); iredisClient.Save(); } /// <summary> /// 根據lambada表達式刪除符合條件的實體 /// </summary> /// <typeparam name="T"></typeparam> /// <param name="listId"></param> /// <param name="func"></param> public void RemoveEntityFromList<T>(string listId, Func<T,bool> func) { using (IRedisTypedClient<T> iredisClient = Redis.As<T>()) { var redisList = iredisClient.Lists[listId]; T value = redisList.Where(func).FirstOrDefault(); redisList.RemoveValue(value); iredisClient.Save(); } } #endregion //釋放資源 public void Dispose() { if (Redis != null) { Redis.Dispose(); Redis = null; } GC.Collect(); } } }

四、  測試

using System;
using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Threading; namespace RedisStudy { public class User { public string Name { get; set; } public int Id { get; set; } } class Program { static RedisHelper redisHelper = new RedisHelper(true); static void Main(string[] args) { User u = new User() { Name = "eric1", Id = 1 }; redisHelper.Set<User>("user", u);//設置緩存 u=redisHelper.Get<User>("user"); Console.WriteLine(u.Name); List<User> list = new List<User>() { new User(){Name="eric1",Id=1}, new User(){Name="eric2",Id=2} }; redisHelper.Remove("list1");//刪除緩存 redisHelper.AddList<User>("list1", list);//添加緩存鏈表 redisHelper.AddEntityToList<User>("list1", new User() { Name = "eric3",Id=3 }); list = redisHelper.GetList<User>("list1").ToList(); Console.WriteLine(list.Count); redisHelper.RemoveEntityFromList<User>("list1", list[0]); redisHelper.RemoveEntityFromList<User>("list1", it => it.Id == 2); list = redisHelper.GetList<User>("list1").ToList(); Console.WriteLine(list.Count); redisHelper.Dispose(); Console.ReadLine(); } } }