85 lines
3.0 KiB
C#
85 lines
3.0 KiB
C#
using HZQR.Common;
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using RedisHelp;
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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 System.Threading.Tasks;
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namespace EShang.Common
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{
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/// <summary>
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/// redis帮助类
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/// </summary>
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public class Redis
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{
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#region 方法 -> string类型缓存操作
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/// <summary>
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/// 写入redis
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/// </summary>
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/// <param name="dbNum">redis用下标指定数据库</param>
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/// <param name="key">redis中的key</param>
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/// <param name="model">数据实体对象</param>
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/// <param name="validDay">有效期，按天</param>
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public static void StringSet(int dbNum, string key, object model, int? validDay = null)
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{
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RedisHelper redisDb = new RedisHelper(dbNum);//从redis中取
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//写入redis，后面的逻辑判断都从redis中取
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TimeSpan? ts = null;
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if (validDay != null)
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{
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DateTime dt1 = DateTime.Now;
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DateTime dt2 = dt1.AddDays(validDay.TryParseToInt());//redis中存放的有效期
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ts = dt2 - dt1;
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}
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redisDb.StringSet(key, model, ts);//键值对写入redis
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}
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public static T StringGet<T>(int dbNum, string key)
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{
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RedisHelper redisDb = new RedisHelper(dbNum);//从redis中取
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if (redisDb.KeyExists(key))//判断redis缓存中是否存在key
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{
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return redisDb.StringGet<T>(key);//根据key取出redis中的缓存
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}
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return default(T);
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}
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#endregion
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#region 方法 -> hash类型缓存操作
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/// <summary>
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/// 将hash数据类型写入redis
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/// </summary>
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/// <param name="dbNum">redis用下标指定数据库</param>
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/// <param name="key">redis中的key</param>
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/// <param name="dataKey">数据值</param>
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/// <param name="model">数据实体对象</param>
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public static bool HashSet(int dbNum, string key, string dataKey, object model)
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{
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RedisHelper redisDb = new RedisHelper(dbNum);//从redis中取
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//写入redis，后面的逻辑判断都从redis中取
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return redisDb.HashSet(key, dataKey, model);
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}
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/// <summary>
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/// 将hash数据类型写入redis
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/// </summary>
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/// <typeparam name="T">泛型对象</typeparam>
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/// <param name="dbNum">redis用下标指定数据库</param>
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/// <param name="key">redis中的key</param>
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/// <param name="dataKey">数据值</param>
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/// <returns></returns>
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public static T HashGet<T>(int dbNum, string key, string dataKey)
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{
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RedisHelper redisDb = new RedisHelper(dbNum);//从redis中取
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if (redisDb.HashExists(key, dataKey))//判断redis缓存中是否存在key
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{
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return redisDb.HashGet<T>(key, dataKey);//根据key取出redis中的缓存
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}
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return default(T);
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}
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#endregion
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}
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}
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