Question

我想在ASP.NET MVC中使用SignalR创建实时聊天应用程序。我创建了这个，但问题是它是向连接到该服务器的所有用户发送消息。我只想在两个用户之间进行私聊。所以请帮帮我。这是我的代码

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

//this is ChatHub.cs file
namespace LiveChat
{
public class ChatHub : Hub
{
    public override System.Threading.Tasks.Task OnConnected()
    {
        Clients.Caller.user(Context.User.Identity.Name);
        return base.OnConnected();
    }
    public void send(string message)
    {
        Clients.Caller.message("You:" + message);         
        Clients.Others.message(Context.User.Identity.Name + ": " + message);

    }

}}

//这是Startup类

using Microsoft.Owin;
using Owin;
[assembly: OwinStartupAttribute(typeof(LiveChat.Startup))]
namespace LiveChat
{
public partial class Startup
{
    public void Configuration(IAppBuilder app)
    {
        ConfigureAuth(app);
        app.MapSignalR();
    }
}
}

//This is my js
 <script>
var hub = $.connection.chatHub;
hub.client.message = function (msg) {
$("#message").append("<li>" + msg + "</li>")
}

hub.client.user = function (msg) {
$("#user").append("<li>" + msg + "</li>")
}
$.connection.hub.start(function () {
$("#send").click(function () {
    if ($("#txt").val() == "") {
        return;
    }
    hub.server.send($("#txt").val());
    $("#txt").val(" ");
});
$("#txt").keyup(function (event) {
    if ($("#txt").val() == "") {
        return;
    }
    if (event.keyCode == 13) {
        hub.server.send($("#txt").val());
    }
});
});
</script>

Answer 1

您可以使用静态列表，该列表包含连接到集线器的所有客户端及其连接ID，在发送消息时，您必须在集线器上显示文本和目标成员。而不是发送到特定的memeber。

将成员添加到OnConnected函数的列表中，客户端ID：

Context.clientID

发送给函数send中的特定客户端

var clientId = ""; // get from the static list by id you got
var scbscriber = Clients.Client(clientId);
scbscriber.message(text);

Answer 2

new Vue({
  el: '#appl',
  router: Router,
  render: h => h(App)
})

Answer 3

您在这里结伴：

 public void SendPrivateMessage(Messaging objMessaging)
    {
        var fromNurse = objConnectedUserList.FirstOrDefault(x => x.NurseId == objMessaging.FromNurseId);
        var toNurse = objConnectedUserList.FirstOrDefault(x => x.NurseId == objMessaging.ToNurseId);
        var chatObject = new { MessageThreadId = 0, Name = fromNurse.NurseName, Message = objMessaging.Message,  DTStmp = DateTime.Now, frmNurseId = fromNurse.NurseId };

        Result objResult = objMessagingDAL.InsertMessage(objMessaging);

        if (toNurse != null)
        {
            Clients.Client(toNurse.ConnectionId).ReceivePrivateMessage(chatObject);
        }
        Clients.Caller.ReceivePrivateMessage(chatObject);

    }

MVC中的Signal R实时聊天应用程序

3 个答案: