Redis是一個用的比較廣泛的Key/Value的內存數據庫,也是最快的key-value分布式緩存之一。
Redis官網:http://redis.io/
Redis快速入門教程:http://www.yiibai.com/redis/redis_quick_guide.html
解壓版下載地址:https://github.com/dmajkic/redis/downloads
安裝版下載地址:https://github.com/rgl/redis/downloads
ServiceStack.Redis:https://github.com/ServiceStack/ServiceStack.Redis
參考:
http://www.cnblogs.com/zhangweizhong/p/4969240.html
http://blog.csdn.net/qiujialongjjj/article/details/16945569
一、Redis安裝
選擇一個版本進行下載,壓縮包中包括32位和64位的安裝工具,或者直接使用安裝版的進行安裝,都是一樣的,這裡使用的是安裝版的,安裝結果如圖:
安裝完後會在系統服務中出現一個Redis Server的系統服務。
redis-server.exe:服務器的daemon啟動程序。
redis.conf:配置文件。
redis-cli.exe:命令行客戶端。
redis-check-dump.exe:本地數據庫檢查
redis-check-aof.exe:更新日志檢查
redis-benchmark.exe:性能測試工具,測試Redis在你的系統及你的配置下的讀寫性能。
二、Redis配置
1. port 端口號,例如6379
2. bind 實例綁定的訪問地址127.0.0.1
3. requirepass 訪問的密碼
4. maxheap 記得把這個配置節點打開,否者redis 服務無法啟動。例如maxheap 1024000000
5. timeout:請求超時時間
6. logfile:log文件位置
7. databases:開啟數據庫的數量
8. dbfilename:數據快照文件名(只是文件名,不包括目錄)
三、Redis使用
在Redis的安裝目錄下找到redis-cli.exe文件,雙擊啟動它:
測試OK,至此Redis安裝到此結束了,接下來是在C#中的實際運用。
二、Redis實戰
1.建立項目,引用ServiceStack.Redis相關的四個類庫。
2.配置文件
<!-- redis Start --> <add key="SessionExpireMinutes" value="180" /> <add key="redis_server_session" value="127.0.0.1:6379" /> <add key="redis_max_read_pool" value="3" /> <add key="redis_max_write_pool" value="1" /> <!--redis end-->
3.創建一個Redis操作的公用類RedisCacheHelper
using ServiceStack.Redis; using System; using System.Collections.Generic; using System.Configuration; using System.Linq; using System.Text; using System.Threading.Tasks; namespace ConsoleApplication { class RedisCacheHelper { private static readonly PooledRedisClientManager pool = null; private static readonly string[] redisHosts = null; public static int RedisMaxReadPool = int.Parse(ConfigurationManager.AppSettings["redis_max_read_pool"]); public static int RedisMaxWritePool = int.Parse(ConfigurationManager.AppSettings["redis_max_write_pool"]); static RedisCacheHelper() { var redisHostStr = ConfigurationManager.AppSettings["redis_server_session"]; if (!string.IsNullOrEmpty(redisHostStr)) { redisHosts = redisHostStr.Split(','); if (redisHosts.Length > 0) { pool = new PooledRedisClientManager(redisHosts, redisHosts, new RedisClientManagerConfig() { MaxWritePoolSize = RedisMaxWritePool, MaxReadPoolSize = RedisMaxReadPool, AutoStart = true }); } } } public static void Add<T>(string key, T value, DateTime expiry) { if (value == null) { return; } if (expiry <= DateTime.Now) { Remove(key); return; } try { if (pool != null) { using (var r = pool.GetClient()) { if (r != null) { r.SendTimeout = 1000; r.Set(key, value, expiry - DateTime.Now); } } } } catch (Exception ex) { string msg = string.Format("{0}:{1}發生異常!{2}", "cache", "存儲", key); } } public static void Add<T>(string key, T value, TimeSpan slidingExpiration) { if (value == null) { return; } if (slidingExpiration.TotalSeconds <= 0) { Remove(key); return; } try { if (pool != null) { using (var r = pool.GetClient()) { if (r != null) { r.SendTimeout = 1000; r.Set(key, value, slidingExpiration); } } } } catch (Exception ex) { string msg = string.Format("{0}:{1}發生異常!{2}", "cache", "存儲", key); } } public static T Get<T>(string key) { if (string.IsNullOrEmpty(key)) { return default(T); } T obj = default(T); try { if (pool != null) { using (var r = pool.GetClient()) { if (r != null) { r.SendTimeout = 1000; obj = r.Get<T>(key); } } } } catch (Exception ex) { string msg = string.Format("{0}:{1}發生異常!{2}", "cache", "獲取", key); } return obj; } public static void Remove(string key) { try { if (pool != null) { using (var r = pool.GetClient()) { if (r != null) { r.SendTimeout = 1000; r.Remove(key); } } } } catch (Exception ex) { string msg = string.Format("{0}:{1}發生異常!{2}", "cache", "刪除", key); } } public static bool Exists(string key) { try { if (pool != null) { using (var r = pool.GetClient()) { if (r != null) { r.SendTimeout = 1000; return r.ContainsKey(key); } } } } catch (Exception ex) { string msg = string.Format("{0}:{1}發生異常!{2}", "cache", "是否存在", key); } return false; } } } View Code4.程序測試
using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace ConsoleApplication { class Program { static void Main(string[] args) { Console.WriteLine("Redis寫入緩存:"); RedisCacheHelper.Add("name1", "test1", DateTime.Now.AddDays(1)); Console.WriteLine("Redis獲取緩存:"); string str = RedisCacheHelper.Get<string>("name1"); Console.WriteLine(str); Console.ReadKey(); } } } View Code5.輸入結果
Demo下載