Question

我正在使用SignalR jQuery库与群组发送聊天但我看不到聊天可以在我的情况下发送这里是代码...

我已经为小组制作了类并从jQuery传递了组但看起来有些不对劲，我看不到聊天可以通过聊天窗口发送任何人帮助我...

类别：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using System.Web;
using Microsoft.AspNet.SignalR;
using Microsoft.AspNet.SignalR.Hubs;

namespace Chat.Hubs
{
    [HubName("myChatHub")]
    public class ChatHub : Hub
    {
        public void Send(MyMessage message)
        {
            // Call the addMessage method on all clients            
            //Clients.All.addNewMessageToPage(message.Msg);
            Clients.Group(message.GroupName).addNewMessageToPage("Group Message " + message.Msg);
        }

        //server
        public void Join(string groupName)
        {
            Groups.Add(Context.ConnectionId, groupName);
        }
    }
    public class MyMessage
    {
        public string Msg { get; set; }
        public string GroupName { get; set; }
    }
}

查看：

@{
    ViewBag.Title = "Chat";
}

<h2>Chat</h2>

<div class="container">
    <input type="text" id="message" />
    <input type="button" id="sendmessage" value="Send" />
    <input type="hidden" id="displayname" />
    <ul id="discussion">
    </ul>
</div>

@section scripts {
    <!--Script references. -->
    <!--The jQuery library is required and is referenced by default in _Layout.cshtml. -->
    <!--Reference the SignalR library. -->
    <script src="@Url.Content("~/Scripts/jquery.signalR-1.1.3.min.js")"></script>
    <!--Reference the autogenerated SignalR hub script. -->
    <script src="~/signalr/hubs"></script>
    <!--SignalR script to update the chat page and send messages.--> 
    <script>
        $(function () {
            // Reference the auto-generated proxy for the hub.  
            var chat = $.connection.myChatHub;



            // Create a function that the hub can call back to display messages.
            chat.client.addNewMessageToPage = function (message) {
                // Add the message to the page. 
                $('#discussion').append('<li><strong>' + htmlEncode(message) + '</li>');
            };
            // Get the user name and store it to prepend to messages.
            $('#displayname').val(prompt('Enter your name:', ''));
            // Set initial focus to message input box.  
            $('#message').focus();
            // Start the connection.
            $.connection.hub.start(function () {
                chat.server.join("RoomA");
            });

            $.connection.hub.start().done(function () {

                $('#sendmessage').click(function () {
                    // Call the Send method on the hub. 
                    chat.server.send({ Msg: $('#message').val(), Group: "RoomA" });
                    //chat.server.send($('#displayname').val(), $('#message').val());
                    // Clear text box and reset focus for next comment. 
                    $('#message').val('').focus();
                });
            });
        });
        // This optional function html-encodes messages for display in the page.
        function htmlEncode(value) {
            var encodedValue = $('<div />').text(value).html();
            return encodedValue;
        }
    </script>
}

Answer 1

您的javascript对象的GroupName不是group：

Clients.Group(message.GroupName).addNewMessageToPage("Group Message " + message.Msg);

你正在发送：

chat.server.send({ Msg: $('#message').val(), Group: "RoomA" });

注意Group vs GroupName属性。

此外，Groups.Add返回的任务在该客户端位于组中时完成。这意味着您可以从方法返回任务，以便知道客户端何时在该组中。

用于聊天的Signal R库不适用于使用mvc asp.net的组

1 个答案: