Yi.Admin/Yi.Abp.Net8/module/rbac/Yi.Framework.Rbac.Domain/SignalRHubs/OnlineUserHub.cs

using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.SignalR;
using Microsoft.Extensions.Logging;
using Volo.Abp.AspNetCore.SignalR;
using Yi.Framework.Rbac.Domain.Entities;
using Yi.Framework.Rbac.Domain.SignalRHubs.Model;

namespace Yi.Framework.Rbac.Domain.SignalRHubs
{
    [HubRoute("/hub/main")]
    [Authorize]
    public class OnlineUserHub : AbpHub
    {
        public static readonly List<OnlineUserModel> clientUsers = new();


        private HttpContext? _httpContext;
        private ILogger<OnlineUserHub> _logger => LoggerFactory.CreateLogger<OnlineUserHub>();
        public OnlineUserHub(IHttpContextAccessor httpContextAccessor)
        {
            _httpContext = httpContextAccessor?.HttpContext;
        }



        /// <summary>
        /// 成功连接
        /// </summary>
        /// <returns></returns>
        public override Task OnConnectedAsync()
        {
            var name = CurrentUser.UserName;
            var loginUser = new LoginLogEntity().GetInfoByHttpContext(_httpContext);
            var user = clientUsers.Any(u => u is not null && u.ConnnectionId == Context.ConnectionId);
            //判断用户是否存在，否则添加集合
            if (!user)
            {
                OnlineUserModel users = new(Context.ConnectionId)
                {
                    Browser = loginUser?.Browser,
                    LoginLocation = loginUser?.LoginLocation,
                    Ipaddr = loginUser?.LoginIp,
                    LoginTime = DateTime.Now,
                    Os = loginUser?.Os,
                    UserName = name ?? "Null"
                };
                clientUsers.Add(users);
                _logger.LogInformation($"{DateTime.Now}：{name},{Context.ConnectionId}连接服务端success，当前已连接{clientUsers.Count}个");

                //Clients.All.SendAsync(HubsConstant.MoreNotice, SendNotice());
                //当有人加入，向全部客户端发送当前总数
                Clients.All.SendAsync("onlineNum", clientUsers.Count);
            }

            //Clients.All.SendAsync(HubsConstant.OnlineUser, clientUsers);
            return base.OnConnectedAsync();
        }

        /// <summary>
        /// 断开连接
        /// </summary>
        /// <param name="exception"></param>
        /// <returns></returns>
        public override Task OnDisconnectedAsync(Exception exception)
        {
            var user = clientUsers.Where(p => p.ConnnectionId == Context.ConnectionId).FirstOrDefault();
            //判断用户是否存在，否则添加集合
            if (user != null)
            {
                var clientUser = clientUsers.FirstOrDefault(x => x.ConnnectionId == user.ConnnectionId);
                if (clientUser is not null)
                {
                    clientUsers.Remove(clientUser);
                    Clients.All.SendAsync("onlineNum", clientUsers.Count);
                    //Clients.All.SendAsync(HubsConstant.OnlineUser, clientUsers);
                    _logger.LogInformation($"用户{user?.UserName}离开了，当前已连接{clientUsers.Count}个");
                }

            }
            return base.OnDisconnectedAsync(exception);
        }

        public async Task SendAllTest(string test)
        {
            await Clients.All.SendAsync("ReceiveAllInfo", test);
        }

    }
}