c#简单模拟商品秒杀

 主函数：

    class Program
    {
        public static List threads = new List();
        public static int count = 0;
        public static List
 plist = new List
();
        static void Main(string[] args)
        {     
            //数据生成
            //for (int i = 0; i < 10; i++)
            //{
            //    plist.Add(new P() { id = i, name = "p" + i, count = ((i + 1) * 10) });
            //    RedisHelper.SetEntryInHash("p", "p" + i, ((i + 1) * 10).ToString());
            //}

            //创建模拟线程
            for (int i = 0; i < 11; i++)
            {
                Thread thread = new Thread(SecKill);
                thread.IsBackground = true;
                thread.Start(i);
            }
            Console.ReadKey();
        }

线程调用函数 

public static void SecKill(object obj) {
            bool issuccess = false;
            int indexthread = (int)obj;
            if (plist.Count == 0)
            {
               
               Dictionary keyValuePairs = RedisHelper.GetAllEntriesFromHash("p");
               foreach (var item in keyValuePairs.Keys)
               {
                   P p = new P() { id = Convert.ToInt32(item.Remove(0, 1)), count = Convert.ToInt32(keyValuePairs[item]), name = item };
                   p.isSure = p.count > 0;
                   plist.Add(p);
               }
            }
            for (int i = 0; i < 1; i++)
            {

                // RedisHelper.SetEntryInHash("p", "p" + i, ((i + 1) * 10).ToString());//redis键名称,字典（字典键，字典值）
                issuccess = RedisHelper.SecKill(i, ref plist);
                Console.WriteLine(string.Format("indexthread:"+ indexthread+"号线程：" + i + ":" + (issuccess ? "抢到了!!!!!" : "没用抢到！！！！！！！")));
            }

        }

  servcestack.redis3.9.7,帮助类

using ServiceStack.Common;
using ServiceStack.Redis;
using ServiceStack.Text;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;

namespace CsharpTest
{
    //servcestack.redis3.9.7
    public class RedisHelper
    {
        private readonly static string RedisPath = "[email protected]:6379";
        private readonly static PooledRedisClientManager _pool = null;
        public static IRedisClient redisClient = null;
        static RedisHelper()
        {
            if (redisClient == null)
            {
                _pool = new PooledRedisClientManager(new string[] { RedisPath }, new string[] { RedisPath }, new RedisClientManagerConfig() { MaxReadPoolSize = 50, MaxWritePoolSize = 50, AutoStart = true });
                //redisClient = _pool.GetClient();
            }
        }    
              //修改hash的值
public static long IncrementValueInHash(string hashId, string key, int incrementBy) {
            long count = 0;
            using (IRedisClient r = _pool.GetClient()) {
                count=r.IncrementValueInHash(hashId, key, incrementBy);
            }
            return count;
        }
//设置hash表
        public static bool SetEntryInHash(string hashId, string key, string value) {
            bool issuccess = false;
            using (IRedisClient r = _pool.GetClient())
            {
                issuccess = r.SetEntryInHash(hashId, key, value);
            }
            return issuccess;

        }
        /// 

        /// 模拟秒杀
        /// 
        /// 
        public static bool SecKill(int i,ref List
 ps) {
            bool issuccess = false;
            using (IRedisClient r = _pool.GetClient())
            {
                using (IDisposable d=r.AcquireLock("lock"))
                {
                    try
                    {
                        if (ps[i].isSure)
                        {
                            ps[i].isSure = r.IncrementValueInHash("p", ps[i].name, -1) > 0;
                            issuccess = true;
                        }
                        else
                        {
                            issuccess = false;
                        }
                    }
                    catch (Exception ex)
                    {
                        d.Dispose();
                    }
                    finally { 
                    
                    }
                }
            }
            return issuccess;
        }

        public static Dictionary GetAllEntriesFromHash(string hashId) {
            Dictionary keyValuePairs = new Dictionary();
            using (IRedisClient r = _pool.GetClient())
            {
                keyValuePairs= r.GetAllEntriesFromHash(hashId);
            }
            return keyValuePairs;
        }
    }
}

模拟类

    public class P
    {
        public int id { get; set; }
        public string name { get; set; }
        public bool isSure { get; set; }
        public int count { get; set; }
    }