Redis缓存服务搭建及实现数据读写 - Eric.Chen

发现博客园中好多大牛在介绍本身的开源项目是不多用到缓存，好比Memcached、Redis、mongodb等，今天得空抽时间把Redis缓存研究了一下，写下来总结一下，跟你们一块儿分享 一下。因为小弟水平有限又是第一次接触Redis，有些的不对的地方欢迎指出纠正。

一、  下载安装Redis

下载地址： https://github.com/MSOpenTech/Redis 。

二、  安装Redis

     在下载的文件中找到bin并打开。

• redis-server.exe：服务程序(目前咱们只用到这一个)
• redis-check-dump.exe：本地数据库检查
•  redis-check-aof.exe：更新日志检查
•  redis-benchmark.exe：性能测试，用以模拟同时由N个客户端发送M个 SETs/GETs 查询 (相似于 Apache 的ab 工具).

Redis有不少配置参数，这里就不介绍了，有兴趣的朋友能够到网上查查。

双击redis-server.exe或者在命令窗口中输入D:\redis-2.6\redis-server.exe便可启动Redis服务。

 

  注意 端口号：Port：6379 在咱们的程序中会用到该端口号。

三、  数据读、写、删测试，并实现list存数。

首先引用下面四个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); //缓存池 PooledRedisClientManager prcm = new PooledRedisClientManager(); //默认缓存过时时间单位秒 public int secondsTimeOut = 30 * 60; /// <summary> /// 缓冲池 /// </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> /// 构造函数 /// </summary> /// <param name="OpenPooledRedis">是否开启缓冲池</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存储 /// <summary> /// 设置缓存 /// </summary> /// <typeparam name="T"></typeparam> /// <param name="key">缓存建</param> /// <param name="t">缓存值</param> /// <param name="timeout">过时时间，单位秒,-1：不过时，0：默认过时时间</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> /// 获取 /// </summary> /// <typeparam name="T"></typeparam> /// <param name="key"></param> /// <returns></returns> public T Get<T>(string key) { return Redis.Get<T>(key); } /// <summary> /// 删除 /// </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 链表操做 /// <summary> /// 根据IEnumerable数据添加链表 /// </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> /// 添加单个实体到链表中 /// </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> /// 获取链表 /// </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> /// 在链表中删除单个实体 /// </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> /// 根据lambada表达式删除符合条件的实体 /// </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 //释放资源 public void Dispose() { if (Redis != null) { Redis.Dispose(); Redis = null; } GC.Collect(); } } }

四、  测试

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);//设置缓存 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");//删除缓存 redisHelper.AddList<User>("list1", list);//添加缓存链表 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(); } } }