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：
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在“添加新项 - SignalRChat”中，选择 InstalledVisual> C#>WebSignalR>，然后选择 SignalR Hub 类 (v2) 。
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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。
-
将新 ChatHub.cs 类文件中的代码替换为以下代码：
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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); } } }-
在“添加新项 - SignalRChat”中选择“InstalledVisual> C#>Web”，然后选择“OWIN 启动类”。
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将类 命名为 Startup 并将其添加到项目中。
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将 Startup 类中的默认代码替换为以下代码：
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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）
View Code
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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) +" "+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