C# WebSocket简单使用

前言

最近接到了一个需求，需要网页实现上位机的功能。那就对数据传输的实时性要求很高。那就只能用WebSocket了。这里简单说一下我的WebSocket如何搭建

Fleck

C# WebSocket(Fleck) 客户端:html Winfrom

Fleck Github官网

我这里用的Fleck去做Websocket。如果有更好的Websocket包可以评论区说一下。

调试工具

这里推荐使用PostMan，自己

初始化

这样太简单了，我们需要对他进行简单封装一下

using Bogus;
using ConsoleApp1.Models;
using Fleck;
using Models;
using Newtonsoft.Json;
using Newtonsoft.Json.Converters;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net.Sockets;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;
using static System.Runtime.InteropServices.JavaScript.JSType;

namespace ConsoleApp1.Services
{
    public class OutPartail_PRPD_Service
    {
        public List<IWebSocketConnection> Connections { get; set; }
        public WebSocketServer WebSocketServer { get; set; }

        public OutPartail_PRPD_Service()
        {
            
            Connections = new List<IWebSocketConnection>();
            WebSocketServer = new WebSocketServer("ws://0.0.0.0:7081");
            WebSocketServer.Start(socket =>
            {

                socket.OnOpen = () =>
                {
                    PrintMsg("客户端连接成功!");
                    Connections.Add(socket);
                    PrintMsg("当前客户端数量：" + Connections.ToList().Count);
                };
                socket.OnClose = () =>
                {
                    PrintMsg("客户端已经关闭!");
                    Connections.Remove(socket);
                    PrintMsg("当前客户端数量：" + Connections.ToList().Count);
                };
                socket.OnError = (e) =>
                {
                    PrintMsg("客户端运行遇到问题");
                    PrintMsg(e.ToString());
                };

                //收到消息时
                socket.OnMessage = message =>
                {
                    PrintMsg($"接收到[{socket.ConnectionInfo.Id}]信息:{message}");
                    socket.Send(message);
                };

            });
        }
		//打印数据
        private void PrintMsg(string msg)
        {
            Console.WriteLine($"{SocketName}:{msg}");
        }

		//向所有已连接的对象发送数据
        public void SendMsg(string msg)
        {
            foreach (var item in Connections)
            {
                item.Send(msg);
            }
        }
}

简单使用

/// <summary>
/// Sim卡切换
/// </summary>
/// <param name="index"></param>
public async Task ChangeSimNo(int index)
{
    int row = (index / 12);
    string col = Convert.ToInt32(index % 12).ToString("X1");
    var msg = $"AT+S{row}{col}";
    SimNo = -1;
    Send(msg);
    try
    {
        var res = await Recive(waitTime);
        ShowMsg(res);
        res = await Recive(waitTime);
        if (res.Contains("OK"))
        {
            SimNo = index;
            ShowMsg($"Sim[{index}]卡切换成功！");
        }
        else
        {
            ShowMsg($"Sim[{index}]卡接受报文错误，应为OK！");
        }
    }
    catch (Exception ex)
    {

        throw new Exception("等待OK超时");
    }

}