99 lines
3.4 KiB
C#
99 lines
3.4 KiB
C#
using Microsoft.AspNetCore.Cors;
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using Microsoft.AspNetCore.SignalR;
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using System;
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using System.Collections.Concurrent;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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using VolPro.Core.CacheManager;
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using VolPro.Core.Extensions;
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using VolPro.Core.ManageUser;
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using VolPro.Sys.IServices;
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namespace VolPro.WebApi.Controllers.Hubs
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{
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/// <summary>
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/// https://docs.microsoft.com/zh-cn/aspnet/core/signalr/introduction?view=aspnetcore-3.1
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/// https://docs.microsoft.com/zh-cn/aspnet/core/signalr/javascript-client?view=aspnetcore-6.0&tabs=visual-studio
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/// </summary>
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public class HomePageMessageHub : Hub
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{
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private readonly ICacheService _cacheService;
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//public static ConcurrentDictionary<string, string> UserCache.ConnectionIds = new ConcurrentDictionary<string, string>();
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/// <summary>
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/// 构造 注入
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/// </summary>
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public HomePageMessageHub(ICacheService cacheService)
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{
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_cacheService = cacheService;
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}
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/// <summary>
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/// 建立连接时异步触发
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/// </summary>
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/// <returns></returns>
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public override async Task OnConnectedAsync()
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{
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//Console.WriteLine($"建立连接{Context.ConnectionId}");
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UserCache.Add(Context);
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//添加到一个组下
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//await Groups.AddToGroupAsync(Context.ConnectionId, "SignalR Users");
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//发送上线消息
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//await Clients.All.SendAsync("ReceiveHomePageMessage", 1, new { title = "系统消息", content = $"{Context.ConnectionId} 上线" });
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await base.OnConnectedAsync();
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}
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/// <summary>
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/// 离开连接时异步触发
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/// </summary>
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/// <param name="ex"></param>
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/// <returns></returns>
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public override async Task OnDisconnectedAsync(Exception ex)
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{
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//Console.WriteLine($"断开连接{Context.ConnectionId}");
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//从组中删除
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// await Groups.RemoveFromGroupAsync(Context.ConnectionId, "SignalR Users");
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//可自行调用下线业务处理方法...
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await UserOffline();
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//发送下线消息
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// await Clients.All.SendAsync("ReceiveHomePageMessage", 4, new { title = "系统消息", content = $"{Context.ConnectionId} 离线" });
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await base.OnDisconnectedAsync(ex);
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}
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/// <summary>
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/// 发送给指定的人
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/// </summary>
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/// <param name="username">BW_Core_System_user表的登陆帐号</param>
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/// <param name="message">发送的消息</param>
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/// <returns></returns>
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public async Task<bool> SendHomeMessage(string username, string title, string message)
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{
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await Clients.Clients(UserCache.GetCnnectionIds(username)).SendAsync("ReceiveHomePageMessage", new
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{
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// username,
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title,
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message,
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date = DateTime.Now.ToString("yyyy-MM-dd HH:mm:sss")
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});
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return true;
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}
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/// <summary>
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/// 断开连接
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/// </summary>
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/// <returns></returns>
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public async Task<bool> UserOffline()
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{
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UserCache.Remove(Context);
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await Task.CompletedTask;
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return true;
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}
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}
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}
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