djyweb_ams/web/Djy.Common/Tools/Redis.cs

using FreeRedis;
using System;
using System.Collections.Generic;
using System.Text;
using System.Linq;
using System.Text.Json;
using Common.Extensions;

namespace Common.Tools
{
    /// <summary>
    /// Ysredis工具 必须要配置在配置文件中配置redis链接 或指定
    /// </summary>
    public class YsRedisHelp
    {
        private static string _RedisContext = sysOptionConfig.Webconfig.Redis;
        /// <summary>
        /// Redis 地址 默认使用 sysOptionConfig.Webconfig.Redis 配置信息的
        /// </summary>
        public static string RedisContext { set {
                _RedisContext = value;
            }
            get { return _RedisContext; }
        }

       /// <summary>
       /// rendisDB
       /// </summary>
        public static RedisClient DbRedis = new RedisClient(RedisContext);
        /// <summary>
        /// 删除单个键值对
        /// </summary>
        /// <param name="Key"></param>
        /// <returns></returns>
        public static long Del(string Key)
        {
            return DbRedis.Del(Key);
        }

        /// <summary>
        /// 清理redis键值对
        /// </summary>
        /// <param name="keymodel">key样式 xxx* *匹配符</param>
        public static long RedisClena(string keymodel)
        {

            var keylist = DbRedis.Keys(keymodel);
            return DbRedis.Del(keylist);

        }
        /// <summary>
        /// 清理统计redis键值 谨慎清理建议指定特定时间执行一次
        /// </summary>
        /// <returns></returns>
        public static long RedisClenaRuncount() {
          return  RedisClena("runcount_*");
        }
        /// <summary>
        ///增加 通过redis统计计数 
        /// </summary>
        /// <param name="key"></param>
        public static void RunCountAdd(string key)
        {
            key = "runcount_" + key;
            DbRedis.LPush(key, DateTime.Now.ToTimeStamp());
        }

        /// <summary>
        /// 获取过去分钟内的统计量
        /// </summary>
        /// <param name="key"></param>
        /// <param name="TimeMinute">分钟数</param>
        /// <returns></returns>
        public static int GetRunCountTime(string key, int TimeMinute)
        {
            return GetRunCountTime(key, DateTime.Now.AddMinutes(-TimeMinute));
        }

        /// <summary>
        /// 获取指定时间内的数量
        /// </summary>
        /// <param name="key"></param>
        /// <param name=""></param>
        /// <returns></returns>
        public static int GetRunCountTime(string key, DateTime StartTime)
        {
            try
            {
                key = "runcount_" + key;
                var _time = StartTime.ToTimeStamp();
                var listarry = DbRedis.LRange(key, 0, DbRedis.LLen(key) - 1);
                if (listarry != null)
                {
                    return listarry.ToList().ConvertAll(s => long.Parse(s)).Count(s => s >= _time);
                }
                else {
                    return 0;  
                }
              
            }
            catch { return 0; }
        }

        /// <summary>
        /// redis 缓存写入
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="setData"></param>
        /// <param name="Key"></param>
        /// <param name="TimeOut">过期秒数</param>
        /// <returns></returns>
        public static bool RedisSet<T>(string Key, T setData, int TimeOut = 0)
        {
            var val = "";
            if (typeof(T) != typeof(string))
            {
                val = JsonSerializer.Serialize(setData);
            }
            else
            {
                val = setData.ToString();
            }
            if (TimeOut > 0)
            {
                DbRedis.Set(Key, val, TimeOut);
            }
            else
            {
                DbRedis.Set(Key, val);
            }

            return true;

        }
        /// <summary>
        /// 读取redis中的对象数据 不存在返回null
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="Key"></param>
        /// <returns></returns>
        public static T RedisGet<T>(string Key)
        {

            var val = DbRedis.Get(Key);
            if (val.IsNull())
            {
                return default(T);
            }
            else
            {
                return Json.JsonToObject<T>(val);
            }
        }
    }
}