SignalR 客户端方法未被解雇

Question

我正在尝试在 Asp.Net MVC 中使用 SignalR 2.4.1，我已经完成了下面的示例代码，

我正在使用 WithGenerateProxy 建立连接。

在服务器端调用集线器方法，在客户端接收到日志

[18:56:10 GMT+0530 (India Standard Time)] SignalR: Triggering client hub event 'SendAsync' on hub 'ChatHub'.

但是客户端方法广播没有被触发。

我缺少什么，下面是我的代码。

C#


public class ChatHub : Hub
    {
        public void Broadcast()
        {
            Clients.All.SendAsync("Broadcast");
        }
    }

Startup.cs

using System;
using System.Threading.Tasks;
using Microsoft.Owin;
using Owin;

[assembly: OwinStartup(typeof(SampleSignalR.Startup))]

namespace SampleSignalR
{
    public class Startup
    {
        public void Configuration(IAppBuilder app)
        {
            app.MapSignalR();
            // For more information on how to configure your application, visit http://go.microsoft.com/fwlink/?LinkID=316888
        }
    }
}

javascript


<script type="text/javascript" src="~/scripts/jquery-1.6.4.min.js"></script>
<script type="text/javascript" src="~/scripts/jquery.signalR-2.4.1.js"></script>
<script type="text/javascript" src="~/SignalR/hubs"></script>

<script>
var connection = $.connection.chatHub;

    $.connection.hub.url = "http://localhost:64573/signalr";
    $.connection.hub.logging = true;
    $.connection.hub.connectionSlow(function () {
        console.log("slow connection");
    });
    connection.on("Broadcast", function () {
        console.log("Successs");
    });
    $.connection.hub.start().done(function () {
        connection.server.broadcast().done(function () {
            console.log("calling server function");
        });
    });
</script>

包裹


<package id="bootstrap" version="3.0.0" targetFramework="net452" />
  <package id="jQuery" version="1.10.2" targetFramework="net452" />
  <package id="Microsoft.ApplicationInsights" version="2.0.0" targetFramework="net452" />
  <package id="Microsoft.ApplicationInsights.Agent.Intercept" version="1.2.1" targetFramework="net452" />
  <package id="Microsoft.ApplicationInsights.DependencyCollector" version="2.0.0" targetFramework="net452" />
  <package id="Microsoft.ApplicationInsights.JavaScript" version="0.22.9-build00167" targetFramework="net452" />
  <package id="Microsoft.ApplicationInsights.PerfCounterCollector" version="2.0.0" targetFramework="net452" />
  <package id="Microsoft.ApplicationInsights.Web" version="2.0.0" targetFramework="net452" />
  <package id="Microsoft.ApplicationInsights.WindowsServer" version="2.0.0" targetFramework="net452" />
  <package id="Microsoft.ApplicationInsights.WindowsServer.TelemetryChannel" version="2.0.0" targetFramework="net452" />
  <package id="Microsoft.AspNet.Mvc" version="5.2.3" targetFramework="net452" />
  <package id="Microsoft.AspNet.Razor" version="3.2.3" targetFramework="net452" />
  <package id="Microsoft.AspNet.SignalR" version="2.4.1" targetFramework="net452" />
  <package id="Microsoft.AspNet.SignalR.Core" version="2.4.1" targetFramework="net452" />
  <package id="Microsoft.AspNet.SignalR.JS" version="2.4.1" targetFramework="net452" />
  <package id="Microsoft.AspNet.SignalR.SystemWeb" version="2.4.1" targetFramework="net452" />
  <package id="Microsoft.AspNet.WebPages" version="3.2.3" targetFramework="net452" />
  <package id="Microsoft.CodeDom.Providers.DotNetCompilerPlatform" version="1.0.0" targetFramework="net452" />
  <package id="Microsoft.Net.Compilers" version="1.0.0" targetFramework="net452" developmentDependency="true" />
  <package id="Microsoft.Owin" version="2.1.0" targetFramework="net452" />
  <package id="Microsoft.Owin.Host.SystemWeb" version="2.1.0" targetFramework="net452" />
  <package id="Microsoft.Owin.Security" version="2.1.0" targetFramework="net452" />
  <package id="Microsoft.Web.Infrastructure" version="1.0.0.0" targetFramework="net452" />
  <package id="Modernizr" version="2.6.2" targetFramework="net452" />
  <package id="Newtonsoft.Json" version="6.0.4" targetFramework="net452" />
  <package id="Owin" version="1.0" targetFramework="net452" />

网络配置


<appSettings>
    <add key="webpages:Version" value="3.0.0.0" />
    <add key="webpages:Enabled" value="false" />
    <add key="ClientValidationEnabled" value="true" />
    <add key="UnobtrusiveJavaScriptEnabled" value="true" />
  </appSettings>
  <system.web>
    <authentication mode="None" />
    <compilation debug="true" targetFramework="4.5" />
    <httpRuntime targetFramework="4.5" />
  </system.web>
  <system.webServer>
    <modules>
      <remove name="FormsAuthenticationModule" />
    </modules>
  </system.webServer>
  <runtime>
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
      <dependentAssembly>
        <assemblyIdentity name="System.Web.Helpers" publicKeyToken="31bf3856ad364e35" />
        <bindingRedirect oldVersion="1.0.0.0-3.0.0.0" newVersion="3.0.0.0" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="System.Web.Mvc" publicKeyToken="31bf3856ad364e35" />
        <bindingRedirect oldVersion="1.0.0.0-5.0.0.0" newVersion="5.0.0.0" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="System.Web.WebPages" publicKeyToken="31bf3856ad364e35" />
        <bindingRedirect oldVersion="1.0.0.0-3.0.0.0" newVersion="3.0.0.0" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="WebGrease" publicKeyToken="31bf3856ad364e35" />
        <bindingRedirect oldVersion="0.0.0.0-1.5.2.14234" newVersion="1.5.2.14234" />
      </dependentAssembly>
    </assemblyBinding>
  </runtime>

Answer 1

我认为如果你真的想给它发送一些数据，它会起作用：

var data = "hello world";
Clients.All.SendAsync("Broadcast", data);

接收数据的函数，传入参数：

connection.on("Broadcast", function (data) {
    console.log(data);
});

Answer 2

需要在js中添加客户端方法，如

       chat.client.receiveBroadcast = function (data) {
           console.log(data);
        };

在 Hub

    public void Broadcast()
    {
        Clients.All.receiveBroadcast("Broadcast");
    }

SignalR 客户端方法未被解雇

SignalR Client Method is not getting fired

c#

asp.net

asp.net-mvc

signalr