redis 初步认识四（redis锁，防并发）

using System;

namespace ConsoleAppRedis
{
    class Program
    {
        static void Main(string[] args)
        {
            //第一种，无登录密码
            //var rds = new CSRedis.CSRedisClient("127.0.0.1:6379");
            //rds.Set("test1", "123123", 60);
            //var str = rds.Get("test1");
            //Console.WriteLine(str);


            //第二种
            //RedisHelper.Initialization(rds);
            //RedisHelper.Set("aaaa", 11111);
            //var str1 = RedisHelper.Get("aaaa");
            //Console.WriteLine(str1);

            //第三种，有登录密码
            var rds2 = new CSRedis.CSRedisClient("127.0.0.1:6379,password=123456,defaultDatabase=13,poolsize=50,ssl=false,writeBuffer=10240,prefix=key前辍");
            rds2.Set("test1", "123123", 60);
            var str3 = rds2.Get("test1");
            Console.WriteLine(str3);

            //第四种，redis锁
            #region redis 锁
            var lockTimeout = 5000;//单位是毫秒
            var currentTime = DateTime.Now.Ticks;
            //获取锁，才执行逻辑
            if (SetNx("donationKey", currentTime + lockTimeout, lockTimeout))
            {
                //dosomething

                Remove("donationKey");   //释放锁
            }
           
            #endregion

            Console.WriteLine("Hello World!");
            Console.ReadKey();
        }

        #region redis 锁，防止并发同时捐步
        private static bool SetNx(string key, long time, double expireMS)
        {
            if (RedisHelper.SetNx(key, time))
            {
                if (expireMS > 0)
                    RedisHelper.Expire(key, TimeSpan.FromMilliseconds(expireMS));
                return true;
            }
            return false;
        }

        private static bool Remove(string key)
        {
            return RedisHelper.Del(key) > 0;
        }
        #endregion
    }
}

标签：test1,Console,redis,初步,并发,key,var,RedisHelper
来源： https://www.cnblogs.com/ligenyun/p/10786854.html