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SignalR 2 与mvc 5实现实时聊天功能

作者:互联网

效果图先附上:

 

 首先 这是我是参考  教程:使用 SignalR 2 和 MVC 5 实时聊天 | Microsoft Docs

先附上教程:

 

 

 

 

  1. 在“添加新项 - SignalRChat”中,选择 InstalledVisual> C#>WebSignalR>,然后选择 SignalR Hub 类 (v2) 。

  2. 将类 ChatHub 命名并添加到项目中。

    此步骤将创建 ChatHub.cs 类文件,并将一组支持 SignalR 的脚本文件和程序集引用添加到项目中。

  3.  

     

  4. 将新 ChatHub.cs 类文件中的代码替换为以下代码:

  5. using System;
    using System.Web;
    using Microsoft.AspNet.SignalR;
    namespace SignalRChat
    {
        public class ChatHub : Hub
        {
            public void Send(string name, string message)
            {
                // Call the broadcastMessage method to update clients.
                Clients.All.broadcastMessage(name, message);
            }
        }
    }
    1. 在“添加新项 - SignalRChat”中选择“InstalledVisual> C#>Web”,然后选择“OWIN 启动类”。

    2. 将类 命名为 Startup 并将其添加到项目中。

    3.  

       

    4. 将 Startup 类中的默认代码替换为以下代码:

    5. using Microsoft.Owin;
      using Owin;
      [assembly: OwinStartup(typeof(SignalRChat.Startup))]
      namespace SignalRChat
      {
          public class Startup
          {
              public void Configuration(IAppBuilder app)
              {
                  // Any connection or hub wire up and configuration should go here
                  app.MapSignalR();
              }
          }
      }

      将前端视图的样式替换(注意是布局页 引用分部页,不是普通的视图)

    6. View Code

控制器

 

 如果实现了以上  效果如图

 

 如果要实现侧边栏展示 那么需要把内容替换一下

@{
    ViewBag.Title = "Chat";
    Layout = "~/Views/Shared/_LayoutChat.cshtml";
}
@using 奈班级学生管理系统.Models;

<style>
    #content {
        width: 263px;
        height: 100%;
      @*  border: 1px solid #808080;*@
        border-radius: 15px;
        @*background-image: url('../../jsCSSImg/Images/mmexport1655381646980.jpg');*@
        /*background-image: url('../../jsCSSImg/Images/QQ图片20220616195500.gif');*/
    }

    #foot {
        position: fixed;
        bottom: 10px;
        margin-left: 10px;
        white-space: nowrap;
        /*不换行*/
    }
    .offcanvas {
        overflow:auto;

    }
    .offcanvas-body{
        margin-bottom:30px;
    }
    .ljjr {
        color: white;
        position: fixed;
        left: 30%;
        bottom: 55%;
        width: auto;
        height: 110px;
        font-size: 90px;
        font-family: 华文琥珀;
        border: 0px;
        /* border-radius: 20px; */
        background-color: rgb(255,0,0,0.0);
    }
</style>
<link href="~/Content/bootstrap.css" rel="stylesheet" />
<p id="UserName" style="display:none;">@ViewBag.name</p>
<p id="time" style="display:none;">@ViewBag.time</p>
<body>
    <div id="tsparticles"><canvas class="tsparticles-canvas-el" width="2133" height="1249" style="width: 100%; height: 100%; position: fixed; z-index: -1; top: 0px; left: 0px; background-color: rgb(255, 255, 255); pointer-events: initial;"></canvas></div>

  

</body>
<button class="ljjr" type="button" data-bs-toggle="offcanvas" data-bs-target="#offcanvasRight" aria-controls="offcanvasRight">立即加入</button>

<div class="offcanvas offcanvas-end" style=" width:30%" tabindex="-1" id="offcanvasRight" aria-labelledby="offcanvasRightLabel">
    <div class="offcanvas-header">
        <h3 class="container">在线聊天栏</h3>
        <hr style="color:#ccc" />
        <button type="button" class="btn-close text-reset" data-bs-dismiss="offcanvas" aria-label="Close"></button>
    </div>

    <div class="offcanvas-body">
        <div class="" id="content">


            <ul id="discussion">
            </ul>
            <div id="foot">
                <input placeholder="快和在线小伙伴一起交流吧~" type="text" id="message" style="width: 230px; border: 1px solid #000000;height:32px;border-radius:5px;" />
                <input type="button" id="sendmessage" value="发送" class="btn" style="background-color: #000000; color: white; width: 22%; height: 32px; border-radius: 4px; " />
                <input type="hidden" id="displayname" />
            </div>
        </div>
    </div>

</div>



@section scripts {
    <script src="~/Scripts/tsparticles.preset.bigCircles.bundle.js"></script>
    <link href="https://cdn.staticfile.org/twitter-bootstrap/5.1.1/css/bootstrap.min.css" rel="stylesheet">
    <script src="https://cdn.staticfile.org/twitter-bootstrap/5.1.1/js/bootstrap.bundle.min.js"></script>
    <!--Script references. -->
    <!--The jQuery library is required and is referenced by default in _Layout.cshtml. -->
    <!--Reference the SignalR library. -->
    <script src="~/Scripts/jquery.signalR-2.2.2.min.js"></script>
    <script src="~/Scripts/jquery.signalR-2.4.3.js"></script>
    @* <script src="~/Scripts/jquery.signalR-2.1.0.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>
        tsParticles.load("tsparticles", { preset: "bigCircles" });
       @* //在此代码块中,将在脚本中创建回调函数。*@
        $(function () {
            // Reference the auto-generated proxy for the hub.
            var chat = $.connection.chatHub;
            // Create a function that the hub can call back to display messages.
            chat.client.addNewMessageToPage = function (name, message) {
                // Add the message to the page.
                var time = $("#time").html();
               @* alert(time)*@
                $('#discussion').append('<p><strong>' + htmlEncode(name)
                    + '</strong>: ' + htmlEncode(message) +"&nbsp;&nbsp;&nbsp;"+time + '</p>');

            };

            // Get the user name and store it to prepend to messages.
            var name = $("#UserName").html()
           @* alert(name)*@
            $('#displayname').val(name);
            // Set initial focus to message input box.
            $('#message').focus();
            // Start the connection.
            //此代码将打开与中心的连接
            $.connection.hub.start().done(function () {
                $('#sendmessage').click(function () {
                    // Call the Send method on the hub.
                    chat.server.send($('#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>

}
View Code

注意 有一些路径需要改成自己的

标签:function,name,hub,SignalR,mvc,聊天,using,message
来源: https://www.cnblogs.com/S-mm/p/16387179.html