71 lines
2.5 KiB
C#
71 lines
2.5 KiB
C#
using Infrastructure.Constant;
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using Infrastructure.Model;
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using Microsoft.AspNetCore.SignalR;
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using ZR.Service.System.IService;
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namespace ZR.Admin.WebApi.Hubs
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{
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public class MessageHub : Hub
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{
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//创建用户集合，用于存储所有链接的用户数据
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private static readonly List<OnlineUsers> clientUsers = new();
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private readonly NLog.Logger logger = NLog.LogManager.GetCurrentClassLogger();
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private ISysNoticeService SysNoticeService;
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public MessageHub(ISysNoticeService noticeService)
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{
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SysNoticeService = noticeService;
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}
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private ApiResult SendNotice()
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{
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var result = SysNoticeService.GetSysNotices();
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return new ApiResult(200, "success", result);
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}
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#region 客户端连接
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/// <summary>
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/// 客户端连接的时候调用
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/// </summary>
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/// <returns></returns>
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public override Task OnConnectedAsync()
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{
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var name = Context.User?.Identity?.Name;
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var user = clientUsers.Any(u => u.ConnnectionId == Context.ConnectionId);
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//判断用户是否存在，否则添加集合
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if (!user && Context.User.Identity.IsAuthenticated)
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{
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clientUsers.Add(new OnlineUsers(Context.ConnectionId, name));
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Console.WriteLine($"{DateTime.Now}：{name},{Context.ConnectionId}连接服务端success，当前已连接{clientUsers.Count}个");
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//Clients.All.SendAsync("welcome", $"欢迎您：{name},当前时间：{DateTime.Now}");
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Clients.All.SendAsync(HubsConstant.MoreNotice, SendNotice());
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}
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Clients.All.SendAsync(HubsConstant.OnlineNum, clientUsers.Count);
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return base.OnConnectedAsync();
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}
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/// <summary>
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/// 连接终止时调用。
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/// </summary>
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/// <returns></returns>
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public override Task OnDisconnectedAsync(Exception exception)
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{
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var user = clientUsers.Where(p => p.ConnnectionId == Context.ConnectionId).FirstOrDefault();
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//判断用户是否存在，否则添加集合
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if (user != null)
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{
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Console.WriteLine($"用户{user?.Name}离开了，当前已连接{clientUsers.Count}个");
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clientUsers.Remove(user);
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Clients.All.SendAsync(HubsConstant.OnlineNum, clientUsers.Count);
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}
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return base.OnDisconnectedAsync(exception);
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}
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#endregion
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}
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}
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