program.cs

GOF23种设计模式详细例子!附有详细的代码噢!

using System;
using System.Collections.Generic;
using System.Threading;

namespace SingletonExample
{
    class Program
    {
        static void Main(string[] args)
        {
            ParameterizedThreadStart ts = new ParameterizedThreadStart(EnterPlayer);
            for (int i = 0; i < 20; i++)
            {                
                Thread t = new Thread(ts);
                t.Start("player" + i);
            }

            LoadBalanceServer.GetLoadBalanceServer().ShowServerInfo();
      
        }

        static void EnterPlayer(object playerName)
        {
            LoadBalanceServer lbs = LoadBalanceServer.GetLoadBalanceServer();
            lbs.GetLobbyServer().EnterPlayer(playerName.ToString());
        }
    }

    class LoadBalanceServer
    {
        private const int SERVER_COUNT = 3;
        private List<LobbyServer> serverList = new List<LobbyServer>();

        private static volatile LoadBalanceServer lbs;
        private static object syncLock = new object();

        private LoadBalanceServer()
        {
            for (int i = 0; i < SERVER_COUNT; i++)
            {
                serverList.Add(new LobbyServer("LobbyServer" + i));
            }
        }

        public static LoadBalanceServer GetLoadBalanceServer()
        {
            if (lbs == null)
            {
                lock (syncLock)
                {
                    if (lbs == null)
                    {
                        Thread.Sleep(100);
                        lbs = new LoadBalanceServer();
                    }
                }
            }
            return lbs;
        }

        public LobbyServer GetLobbyServer()
        {
            LobbyServer ls = serverList[0];
            for (int i = 1; i < SERVER_COUNT; i++)
            {
                if (serverList[i].PlayerList.Count < ls.PlayerList.Count)
                    ls = serverList[i];
            }
            return ls;
        }

        public void ShowServerInfo()
        {
            foreach (LobbyServer ls in serverList)
            {
                Console.WriteLine("=================" + ls.ServerName + "=================");
                foreach (string player in ls.PlayerList)
                {
                    Console.WriteLine(player);
                }
            }
        }
    }

    class LobbyServer
    {
        private List<string> playerList = new List<string>();

        public List<string> PlayerList
        {
            get { return playerList; }
        }

        private string serverName;

        public string ServerName
        {
            get { return serverName; }
        }

        public LobbyServer(string serverName)
        {
            this.serverName = serverName;
        }

        public void EnterPlayer(string playerName)
        {
            playerList.Add(playerName);
        }
    }
}