using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using ServiceStack.Redis;
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using ServiceStack.Text;
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using ServiceStack.Redis.Generic;
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using System.Configuration;
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using StackExchange.Redis;
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using Newtonsoft.Json;
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namespace VueWebApi.Tools
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{
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public class RedisHelper
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{
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/// <summary>
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/// redis获取连接配置字符串
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/// </summary>
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private static readonly string RedisIpConnString = ConfigurationManager.AppSettings["RedisConnIp"];
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private static readonly string RedisPortConnString = ConfigurationManager.AppSettings["RedisConnPort"];
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private static readonly string RedisKeyTimeCont = ConfigurationManager.AppSettings["RedisKeyTimeCont"];
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private static RedisClient Redis = new RedisClient(RedisIpConnString,Convert.ToInt32(RedisPortConnString));
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//缓存池
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static PooledRedisClientManager prcm = new PooledRedisClientManager();
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//默认缓存过期时间单位秒
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public int secondsTimeOut =Convert.ToInt32(RedisKeyTimeCont);
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private static readonly Dictionary<int, PooledRedisClientManager> pools = new Dictionary<int, PooledRedisClientManager>();
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/// <summary>
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/// 缓冲池
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/// </summary>
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/// <param name="readWriteHosts"></param>
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/// <param name="readOnlyHosts"></param>
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/// <returns></returns>
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private static void CreateManager(string[] readWriteHosts, string[] readOnlyHosts)
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{
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for (int i = 0; i <= 15; i++)
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{
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PooledRedisClientManager prc = new PooledRedisClientManager(readWriteHosts, readOnlyHosts,
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new RedisClientManagerConfig
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{
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MaxWritePoolSize = readWriteHosts.Length * 5,
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MaxReadPoolSize = readOnlyHosts.Length * 5,
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AutoStart = true,
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}, i, 200, 10);// { RedisClientFactory = (IRedisClientFactory)RedisCacheClientFactory.Instance.CreateRedisClient("127.0.0.1", 6379) };
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pools.Add(i, prc);
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}
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}
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public static PooledRedisClientManager ChooseRedisInstance(int database)
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{
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if (database > 16) return pools[0];
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return pools[database];
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}
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/// <summary>
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/// 构造函数
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/// </summary>
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/// <param name="openPooledRedis">是否开启缓冲池</param>
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static RedisHelper()
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{
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//CreateManager(new string[] { "127.0.0.1:6379" }, new string[] { "127.0.0.1:6379" });
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CreateManager(new string[] { RedisIpConnString+":"+RedisPortConnString }, new string[] { RedisIpConnString + ":" + RedisPortConnString });
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//Redis = prcm.GetClient() as RedisClient;
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}
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#region Key/Value存储
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/// <summary>
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/// 设置缓存
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/// </summary>
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/// <typeparam name="T"></typeparam>
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/// <param name="key">缓存建</param>
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/// <param name="t">缓存值</param>
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/// <param name="timeout">过期时间，单位秒,-1：不过期，0：默认过期时间</param>
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/// <returns></returns>
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public bool Set<T>(string key, T t, int timeout = 0, int db = 0)
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{
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Redis = (RedisClient)ChooseRedisInstance(db).GetClient();
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var values=Redis.Add<T>(key, t);
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if (timeout >= 0)
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{
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if (timeout > 0)
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{
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secondsTimeOut = timeout;
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}
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Redis.Expire(key, secondsTimeOut);
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}
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Redis.Dispose();
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return values;
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}
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/// <summary>
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/// 设置失效时间
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/// </summary>
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/// <param name="key"></param>
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/// <param name="expiry"></param>
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/// <returns></returns>
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public bool KeyExpire(string key, int expiry)
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{
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return Redis.Expire(key, expiry);
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}
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/// <summary>
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/// 获取
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/// </summary>
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/// <typeparam name="T"></typeparam>
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/// <param name="key"></param>
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/// <returns></returns>
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public T Get<T>(string key, int db = 0)
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{
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Redis = (RedisClient)ChooseRedisInstance(db).GetClient();
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var values = Redis.Get<T>(key);
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Redis.Dispose();
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return values;
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}
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/// <summary>
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/// 删除
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/// </summary>
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/// <param name="key"></param>
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/// <returns></returns>
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public bool Remove(string key, int db = 0)
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{
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Redis = (RedisClient)ChooseRedisInstance(db).GetClient();
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Redis.Dispose();
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return Redis.Remove(key);
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}
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//public static bool Add<T>(string key, T t, int timeout)
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//{
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// var values = Redis.Add<T>(key, t);
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// if (timeout >= 0)
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// {
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// if (timeout > 0)
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// {
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// secondsTimeOut = timeout;
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// }
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// Redis.Expire(key, secondsTimeOut);
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// }
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// return values;
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//}
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#endregion
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#region 链表操作
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/// <summary>
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/// 根据IEnumerable数据添加链表
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/// </summary>
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/// <typeparam name="T"></typeparam>
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/// <param name="listId"></param>
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/// <param name="values"></param>
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/// <param name="timeout"></param>
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public void AddList<T>(string listId, IEnumerable<T> values, int timeout = 0)
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{
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Redis.Expire(listId, 60);
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IRedisTypedClient<T> iredisClient = Redis.As<T>();
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if (timeout >= 0)
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{
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if (timeout > 0)
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{
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secondsTimeOut = timeout;
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}
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Redis.Expire(listId, secondsTimeOut);
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}
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var redisList = iredisClient.Lists[listId];
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redisList.AddRange(values);
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iredisClient.Save();
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Redis.Dispose();
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}
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/// <summary>
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/// 添加单个实体到链表中
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/// </summary>
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/// <typeparam name="T"></typeparam>
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/// <param name="listId"></param>
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/// <param name="Item"></param>
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/// <param name="timeout"></param>
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public void AddEntityToList<T>(string listId, T Item, int timeout = 0, int db = 0)
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{
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Redis = (RedisClient)ChooseRedisInstance(db).GetClient();
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IRedisTypedClient<T> iredisClient = Redis.As<T>();
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if (timeout >= 0)
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{
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if (timeout > 0)
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{
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secondsTimeOut = timeout;
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}
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Redis.Expire(listId, secondsTimeOut);
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}
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var redisList = iredisClient.Lists[listId];
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redisList.Add(Item);
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iredisClient.Save();
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Redis.Dispose();
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}
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/// <summary>
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/// 获取链表
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/// </summary>
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/// <typeparam name="T"></typeparam>
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/// <param name="listId"></param>
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/// <returns></returns>
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public IEnumerable<T> GetList<T>(string listId, int db = 0)
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{
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Redis = (RedisClient)ChooseRedisInstance(db).GetClient();
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IRedisTypedClient<T> iredisClient = Redis.As<T>();
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Redis.Dispose();
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return iredisClient.Lists[listId];
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}
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/// <summary>
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/// 在链表中删除单个实体
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/// </summary>
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/// <typeparam name="T"></typeparam>
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/// <param name="listId"></param>
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/// <param name="t"></param>
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public void RemoveEntityFromList<T>(string listId, T t, int db = 0)
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{
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Redis = (RedisClient)ChooseRedisInstance(db).GetClient();
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IRedisTypedClient<T> iredisClient = Redis.As<T>();
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var redisList = iredisClient.Lists[listId];
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redisList.RemoveValue(t);
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iredisClient.Save();
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Redis.Dispose();
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}
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/// <summary>
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/// 根据lambada表达式删除符合条件的实体
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/// </summary>
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/// <typeparam name="T"></typeparam>
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/// <param name="listId"></param>
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/// <param name="func"></param>
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public void RemoveEntityFromList<T>(string listId, Func<T, bool> func)
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{
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//using (IRedisTypedClient<T> iredisClient = Redis.As<T>())
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//{
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// var redisList = iredisClient.Lists[listId];
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// T value = redisList.Where(func).FirstOrDefault();
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// redisList.RemoveValue(value);
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// iredisClient.Save();
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//}
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// 使用using 报错：
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// using 语句中使用的类型必须可隐式转换为“System.IDisposable”
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// using会自动调用System.IDisposable下的Dispose方法来释放非托管资源，
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// IRedisTypedClient没有继承System.IDisposable的接口，所以不能用
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IRedisTypedClient<T> iredisClient = Redis.As<T>();
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var redisList = iredisClient.Lists[listId];
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T value = redisList.Where(func).FirstOrDefault();
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redisList.RemoveValue(value);
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iredisClient.Save();
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Redis.Dispose();
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}
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public void test()
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{
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string s1 = Redis.GetClient();
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List<Dictionary<string, string>> s2 = Redis.GetClientsInfo();
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List<string> s3 = Redis.GetAllKeys();
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string s4 = Redis.GetHostString();
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long s5 = Redis.Db;
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}
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#endregion
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//释放资源
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public void Dispose()
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{
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if (Redis != null)
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{
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Redis.Dispose();
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Redis = null;
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}
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GC.Collect();
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}
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}
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}
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