socket 一个websocke对应一个socketclient对象

using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Fleck;
namespace DB
{

	/// <summary>
	/// 客户端网络状态
	/// </summary>
	/// 
	public enum NetStateEnum
	{
		[Description("已链接")]
		Connected = 1,
		[Description("已发送")]
		SendData = 2,
		[Description("已接收")]
		ReceiveData = 3,
		[Description("已解析")]
		ParseData = 4,
		[Description("已离线")]
		Disconnected = 5,
		[Description("上报超时")]
		ReportTimeout = 6
	}


	/// <summary>
	/// 记录每个Socket链接
	/// </summary>
	public class SocketConnectionInfo
	{
		private const int SocketDataBufferSize = 1024;//若是单包数据字节数大于该值则须要加大此值，以避免分包



		/// <summary>
		/// 构造函数将一个套接字和一个客户号码
		/// </summary>
		/// <param name="socket">套接字</param>
		/// <param name="connectionId">设备惟一号</param>
		internal SocketConnectionInfo(IWebSocketConnection socket, string connectionId)
		{
			ConnectionId = connectionId;
			CurrentSocket = socket;
			DataBuffer = new byte[SocketDataBufferSize];
		}
		/// <summary>
		/// 析构函数
		/// </summary>
		~SocketConnectionInfo()
		{
			DataBuffer = null;
			CurrentSocket = null;
		}

		public void Close()
		{
			if (CurrentSocket != null/* && CurrentSocket.Connected*/)
			{
				CurrentSocket.Close();
			}
		}




		/// <summary>
		/// 客户端的套接字
		/// </summary>
		public IWebSocketConnection CurrentSocket { get; set; }

		/// <summary>
		/// 由客户机发送缓冲区来存储数据
		/// </summary>
		public byte[] DataBuffer { get; set; }

		/// <summary>
		/// 当前实际接收的数据字节数，与属性DataBuffer结合使用以肯定实际接收的数据
		/// </summary>
		/// 
		public int DataBufferLen { get; set; }

		/// <summary>
		/// 数据接收时的系统时间
		/// </summary>
		public DateTime ReceivedTimeFromServer { get; set; }

		/// <summary>
		/// 最后一次接收的数据里的采集时间
		/// </summary>
		/// 
		public DateTime ReceivedTimeFromClient { get; set; }

		/// <summary>
		/// 是否在线
		/// </summary>
		public bool IsAlive
		{
			get
			{
				if (CurrentSocket != null)
				{
					return CurrentSocket.IsAvailable;
				}
				else
				{
					return false;
				}
			}

		}



		/// <summary>
		/// 用于标识socket链接
		/// </summary>
		public string ConnectionId { get; set; }


		public NetStateEnum NetDataState { get; set; }

		public byte[] LastUnParsedBytes { get; set; } // 缓存上次未解析的数据 缓存在每一个链接中

		public object ParsedEntity { get; set; }

		/// <summary>
		/// 是否禁用，由用户手工更改。禁用后的链接不处理其收发数据，收到数据直接抛弃。防止客户端数据高频发送无效数据。
		/// </summary>
		public bool IsDisabled { get; set; }

		public bool IsLoggedIn { get; set; } //是否登陆成功，只有登陆成功的状况下才能够后续通讯交互
											 /// <summary>
											 /// 当前使用的终端编号，每次通讯都有可能修改
											 /// </summary>
		public string CurrentPileCode { get; set; }
		public string DeviceId { get; set; }

		public string TemporaryHint { get; set; }
		public string MessageTypeName { get; internal set; }
	}

	public class SocketConnectionInfoFactory
	{
		/// <summary>
		/// 全部客户端Socket链接的集合，经过socket对象索引
		/// </summary>
		private ConcurrentDictionary<IWebSocketConnection, SocketConnectionInfo> dictionary = new ConcurrentDictionary<IWebSocketConnection, SocketConnectionInfo>();

		public ConcurrentDictionary<IWebSocketConnection, SocketConnectionInfo> GetItems()
		{
			return dictionary;
		}
		public SocketConnectionInfo BindSocketConnectionInfo(IWebSocketConnection socket, string connectionId)
		{
			SocketConnectionInfo socketConnectionInfo;
			if (dictionary.ContainsKey(socket))
			{
				socketConnectionInfo = dictionary[socket];
			}
			else
			{
				socketConnectionInfo = new SocketConnectionInfo(socket, connectionId);
				dictionary.TryAdd(socket, socketConnectionInfo);
			}
			return socketConnectionInfo;
		}

		public SocketConnectionInfo GetSocketConnectionInfo(string uniqueId)
		{
			SocketConnectionInfo socketConnectionInfo = null;
			foreach (var item in dictionary)
			{
				if (string.Compare(item.Value?.ConnectionId, uniqueId, true) == 0)
				{
					if (item.Value.ReceivedTimeFromServer >= socketConnectionInfo?.ReceivedTimeFromServer)
					{
						Remove(socketConnectionInfo.CurrentSocket);
					}
					else
					{
						socketConnectionInfo = item.Value;
					}


				}
			}

			return socketConnectionInfo;
		}

		public void Remove(IWebSocketConnection socket)
		{
			if (socket != null)
			{
				dictionary.TryRemove(socket, out SocketConnectionInfo value);
				try
				{
					//判断此链接是否可用
					if (socket.IsAvailable)
					{
						socket.Close();
					}
				}
				catch
				{
					throw;
				}
				socket.Close();
				value = null;
			}
		}

		public void RemoveAll()
		{
			foreach (var item in dictionary)
			{
				item.Value?.Close();
			}
			dictionary.Clear();
		}






		public int Count
		{
			get
			{
				if (dictionary == null)
				{
					return 0;
				}
				return dictionary.Count;
			}
		}


	}
}

　　调用方式

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace DB
{
	public class DBHelper
	{

		private static object obj = new object();
		private static SocketConnectionInfoFactory webSocket = null;

		public static SocketConnectionInfoFactory GetInstance()
		{
			if (webSocket == null)
			{
				lock (obj)
				{
					if (webSocket == null)
					{
						webSocket = new SocketConnectionInfoFactory();
					}
				}
			}
			return webSocket;

		}
	}
}