在asp.net mvc中使用signalR聊天

using Microsoft.AspNet.SignalR;

public class ChatHub : Hub
{
    public void SendMessage(string username, string message)
    {
        // 处理接收到的消息
        Clients.All.broadcastMessage(username, message);
    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using System.Web.Routing;
using Microsoft.AspNet.SignalR;

namespace YourProjectNamespace
{
    public class RouteConfig
    {
        public static void RegisterRoutes(RouteCollection routes)
        {
            // ...其他路由配置

            // 添加SignalR路由
            routes.MapHubs();
        }
    }
}

<div>
    <input type="text" id="username" placeholder="用户名" />
    <input type="text" id="message" placeholder="消息" />
    <input type="button" id="sendButton" value="发送" />
</div>

<div id="chatMessages"></div>

<script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
<script src="/signalr/hubs"></script>
<script>
    $(function () {
        var chat = $.connection.chatHub;

        chat.client.broadcastMessage = function (username, message) {
            // 接收到消息时的处理
            $('#chatMessages').append('<p><strong>' + username + '</strong>: ' + message + '</p>');
        };

        $.connection.hub.start().done(function () {
            $('#sendButton').click(function () {
                var username = $('#username').val();
                var message = $('#message').val();

                chat.server.sendMessage(username, message);

                $('#message').val('').focus();
            });
        });
    });
</script>